EP3553009B1 - Synthetic yarn splicer - Google Patents
Synthetic yarn splicer Download PDFInfo
- Publication number
- EP3553009B1 EP3553009B1 EP19167770.7A EP19167770A EP3553009B1 EP 3553009 B1 EP3553009 B1 EP 3553009B1 EP 19167770 A EP19167770 A EP 19167770A EP 3553009 B1 EP3553009 B1 EP 3553009B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- clamping
- clamping member
- diameter
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims description 76
- 238000002347 injection Methods 0.000 claims description 54
- 239000007924 injection Substances 0.000 claims description 54
- 239000012530 fluid Substances 0.000 claims description 11
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 239000012209 synthetic fiber Substances 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 19
- 238000004804 winding Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000007380 fibre production Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
- B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
- B65H69/061—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing using pneumatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
- B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
- B65H69/061—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing using pneumatic means
- B65H69/063—Preparation of the yarn ends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
- B65H2402/41—Portable or hand-held apparatus
- B65H2402/414—Manual tools for filamentary material, e.g. for mounting or removing a bobbin, measuring tension or splicing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
- B65H2701/313—Synthetic polymer threads
Definitions
- the invention relates to a synthetic yarn splicer.
- Patent Literature 1 Japanese Unexamined Patent Publication No. H10-17214
- a starting end and a terminating end of two synthetic yarns are aligned in the opposite directions to be drawn into an air nozzle, both side portions outside the air nozzle of the drawn yarn end are pressed down, the pressed both side portions are moved into the air nozzle, the aligned yarn end is loosened inside the air nozzle, and the yarns are spliced by an air flow inside the air nozzle.
- the US 5,280,698 A discloses a thread splicing arrangement having a splicing head and holing devices at the ends of the splicing channel for clamping single ends of the threads during the splicing.
- the EP 1 420 091 A1 discloses a carbon fiber production device having a rectangular entangling process area with a plurality of fluid jet holes and a pair of yarn gripping devices for gripping the ends of the overlayed yarn portions.
- the document JP 2002 302342 A refers to a further carbon fiber production device having a rectangular entangling area and a pair of gripping devices for holding the ends of the overlayed yarn portions.
- JP S60 144281 A discloses a yarn splicer according to the preamble of claim 1.
- the synthetic yarn splicer is used to splice a terminating end of a yarn of one supply bobbin and a starting end of a yarn of the other supply bobbin in, for example, a yarn winding machine for winding synthetic fibers.
- the yarn winding machine the yarn is wound around a bobbin while applying a tension to the yarn to form a package. For that reason, an entangled portion obtained by splicing the yarns by the synthetic yarn splicer is pulled while a tension is applied thereto.
- the yarn winding machine when the entangled portion is unwound during the winding operation, the winding operation must be temporarily stopped and hence the production efficiency is lowered. For that reason, there is a demand for forming an entangled portion having a tensile elongation capable of withstanding a winding tension in the synthetic yarn splicer.
- An aspect of the invention is to provide a synthetic yarn splicer capable of suppressing a decrease in tensile elongation of an entangled portion.
- a synthetic yarn splicer is a synthetic yarn splicer according to claim 1 that splices one yarn and the other yarn formed of synthetic fibers, including: a yarn splicing portion that includes a passage which forms a space through which the one yarn and the other yarn are insertable and an injection hole which opens to the passage and injects a fluid; and a pair of clamping mechanisms that is provided at a position interposing the passage of the yarn splicing portion and clamps each of the one yarn and the other yarn inserted through the space, in which the injection hole has a circular shape, and in which a diameter of the injection hole is equal to or larger than ⁇ 0.8 mm and equal to or smaller than ⁇ 1.3 mm.
- one yarn and the other yarn clamped by the pair of clamping mechanisms are swayed inside the passage by using a position clamped by the clamping mechanism as a fixed point to form an entangled portion.
- a force of a fluid injected into the passage is small. For this reason, since the fluid does not appropriately act on one yarn and the other yarn and one yarn and the other yarn are not appropriately swayed inside the passage, it is difficult to form the entangled portion.
- the diameter of the injection hole is equal to or larger than ⁇ 0.8 mm and equal to or smaller than ⁇ 1.3 mm. Accordingly, in the synthetic yarn splicer, since the fluid can be appropriately act on one yarn and the other yarn and one yarn and the other yarn are appropriately swayed inside the passage, the entangled portion can be appropriately formed. Thus, in the synthetic yarn splicer, the entangled portion of the yarn can be formed and a decrease in tensile elongation of the entangled portion can be suppressed.
- a diameter of the injection hole may be equal to or larger than ⁇ 1.0 mm and equal to or smaller than ⁇ 1.3 mm. In this configuration, the entangled portion can be more appropriately formed.
- the passage has a circular shape when viewed from a penetration direction of the passage and a diameter of the passage is equal to or larger than ⁇ 3.0 mm and equal to or smaller than ⁇ 4.0 mm.
- a diameter of the passage is equal to or larger than ⁇ 3.0 mm and equal to or smaller than ⁇ 4.0 mm.
- the entangled portion of the yarn can be more reliably formed and a decrease in tensile elongation of the entangled portion can be further suppressed.
- the one yarn and the other yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less may be spliced. It is difficult to form the entangled portion in the yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less. Since the synthetic yarn splicer has the above-described configuration, it is possible to form the entangled portion also in the yarn of which the thickness of 55 dtex or less and the number of filaments is 10f or less, that is, the number of filaments is small.
- a synthetic yarn splicer 1 illustrated in FIG. 1 is a device which performs a splicing operation between a yarn end of a first yarn (one yarn) Y1 (see FIG. 6A ) formed of synthetic fibers and a yarn end of a second yarn (the other yarn) Y2 (see FIG. 6A ) formed of synthetic fibers.
- the synthetic yarn splicer 1 splices a first yarn Y1 and a second yarn Y2 of which the thickness is 55 dtex or less and the number of filaments is 10f or less.
- the synthetic yarn splicer 1 is used to perform a splicing operation between a terminating end of a yarn of one supply bobbin and a starting end of a yarn of the other supply bobbin, for example, in a yarn winding machine that winds a yarn from a supply bobbin to form a package.
- the synthetic yarn splicer 1 is a so-called hand splicer.
- the synthetic yarn splicer 1 includes a main body 3 and a yarn splicing mechanism 5.
- the main body 3 is a casing which accommodates the yarn splicing mechanism 5.
- the main body 3 includes a first main body portion 3a and a second main body portion 3b.
- the main body 3 is formed in, for example, a substantially L shape in the side view.
- the first main body portion 3a is a portion which is gripped by an operator when the synthetic yarn splicer 1 is used.
- the first main body portion 3a has, for example, a substantially rectangular parallelepiped shape.
- the first main body portion 3a is provided with an operation portion 7.
- the operation portion 7 is a button which is operated when performing a splicing operation in the synthetic yarn splicer 1.
- the operation portion 7 is provided at a portion which is located within an operation range of an index finger when the first main body portion 3a is gripped by the operator at the side of one end portion (the side of the second main body portion 3b) of the first main body portion 3a in the longitudinal direction.
- the lower end portion of the first main body portion 3a (the other end portion of the longitudinal direction) is provided with a connection portion 9.
- a tube (not illustrated) supplying compressed air (fluid) (hereinafter, simply referred to as "air") is connected to the connection portion 9.
- the first main body portion 3a may accommodate a switch which is operated in synchronization with the operation of the operation portion 7 and components branching compressed air supplied through the connection portion 9.
- the second main body portion 3b is provided with the yarn splicing mechanism 5.
- the second main body portion 3b has, for example, a substantially rectangular parallelepiped shape.
- the second main body portion 3b is provided at one end portion of the first main body portion 3a.
- the second main body portion 3b is integrally formed with the first main body portion 3a so that a predetermined angle (for example, 90° or less) is formed between the longitudinal direction of the second main body portion 3b and the longitudinal direction of the first main body portion 3a.
- the second main body portion 3b exposes the yarn splicing mechanism 5.
- the second main body portion 3b accommodates a driving portion or the like (for example, a cylinder or the like) which drives a first clamping mechanism 20 and a second clamping mechanism 30 to be described later.
- the yarn splicing mechanism 5 includes a yarn splicing portion 10, the first clamping mechanism 20, and the second clamping mechanism 30.
- the first clamping mechanism 20 and the second clamping mechanism 30 are provided at a position that interposes a chamber 14 of the yarn splicing portion 10.
- the yarn splicing portion 10 includes a yarn splicing nozzle 12, a slit 13, a chamber (a passage) 14, and an air flow passage 16.
- the yarn splicing nozzle 12 is a block body which is formed of metal or ceramic.
- the yarn splicing nozzle 12 includes an upper surface 12a and a pair of side surfaces 12b and 12c.
- the slit 13 is provided in the yarn splicing nozzle 12.
- the slit 13 is a portion which communicates with the chamber 14 and introduces a yarn into the chamber 14.
- the slit 13 is provided over the upper surface 12a of the yarn splicing nozzle 12 and the chamber 14.
- the width of the slit 13 is, for example, 0.4 mm.
- An upper portion of the slit 13 is provided with an inclined surface 15.
- the inclined surface 15 guides a yarn to the slit 13.
- the inclined surface 15 has a tapered shape which is narrowed from an upper surface 12a of the yarn splicing nozzle 12 toward the slit 13.
- the chamber 14 is a passage through which a first yarn Y1 and a second yarn Y2 are inserted. As illustrated in FIG. 5 , the chamber 14 penetrates one side surface 12b and the other side surface 12c of the yarn splicing nozzle 12. That is, the penetration direction of the chamber 14 is a facing direction of the pair of side surfaces 12b and 12c and is orthogonal to the insertion direction of the first yarn Y1 and the second yarn Y2 with respect to the slit 13. The chamber 14 forms a space through which the first yarn Y1 and the second yarn Y2 are insertable. As illustrated in FIG. 4 , the chamber 14 has a circular shape when viewed from the side surfaces 12b and 12c. In the embodiment, the chamber 14 has a true circular shape. The diameter R1 of the chamber 14 is equal to or larger than ⁇ 3.0 mm and equal to or smaller than ⁇ 4.0 mm.
- the air flow path 16 circulates air to be supplied to the chamber 14.
- the air flow path 16 includes an injection hole 16a which opens to the chamber 14.
- the injection hole 16a communicates the air flow path 16 with the chamber 14. Air is injected from the injection hole 16a to the chamber 14.
- the injection hole 16a has a circular shape. In the embodiment, the injection hole 16a has a true circular shape.
- the diameter of the injection hole 16a is desirably equal to or larger than ⁇ 0.8mm and equal to or smaller than ⁇ 1.3 mm and more desirably equal to or larger than ⁇ 1.0 mm and equal to or smaller than ⁇ 1.3 mm.
- the injection hole 16a is disposed on a line passing through the center of the chamber 14 and orthogonal to the insertion direction of the first yarn Y1 and the second yarn Y2 with respect to the slit 13.
- a connection portion 18 is provided at the upstream side of the air flow passage 16 (the side opposite to the injection hole 16a).
- a supply pipe or the like supplying air is connected to the connection portion 18.
- the first clamping mechanism 20 includes a support portion 22 and a clamping portion 23.
- the first clamping mechanism 20 clamps a yarn inserted through the chamber 14 of the yarn splicing portion 10.
- the support portion 22 has a rectangular parallelepiped shape (prismatic shape). As illustrated in FIG. 5 , the support portion 22 includes a pair of facing main surfaces 22a and 22b and a pair of facing side surfaces 22c and 22d.
- the side surface 22d is a surface which faces the side surface 12b in the yarn splicing nozzle 12.
- the support portion 22 holds the clamping portion 23.
- the support portion 22 is provided to be swingable. Specifically, as illustrated in FIG. 2 , a base end portion of the support portion 22 (one end portion of the longitudinal direction) is provided with a shaft 21.
- the shaft 21 is fixed to a frame (not illustrated) or the like.
- the support portion 22 swings about the shaft 21.
- the support portion 22 moves between a second position P2 (see FIG. 6B ) in which a front end portion (the other end portion of the longitudinal direction) moves close to the yarn splicing portion 10 and a first position P1 (see FIG. 6A ) in which the front end portion moves away from the yarn splicing portion 10 in relation to the second position P2.
- the support portion 22 moves by the driving of, for example, a driving portion (not illustrated) such as a cylinder.
- a driving portion such as a cylinder.
- one end portion of the longitudinal direction provided with the shaft 21 in the support portion 22 will be referred to as a base end portion and the other end portion of the longitudinal direction opposite to the one end portion will be referred to as a front end portion.
- the support portion 22 is provided with a concave portion 25.
- the concave portion 25 is provided at the side of the front end portion of the support portion 22.
- the concave portion 25 opens to the main surface 22a and the pair of side surfaces 22c and 22d of the support portion 22.
- the concave portion 25 exposes a part of the clamping portion 23.
- the concave portion 25 has a rectangular shape when viewed from the main surface 22a of the support portion 22.
- the concave portion 25 has a rectangular shape when viewed from the side surface 22c of the support portion 22.
- the support portion 22 includes a support surface 27a which slidably supports a second clamping member 26 (a first clamping member 24) to be described later in the clamping portion 23.
- the support surface 27a is provided at a center portion in the facing direction of the pair of side surfaces 22c and 22d of the support portion 22.
- the support surface 27a has a shape (a semi-circular shape) which is curved in a convex shape downward in response to the shape of the outer peripheral surface of the second clamping member 26 (the first clamping member 24).
- the support surface 27a extends in the longitudinal direction of the support portion 22.
- the support portion 22 includes a first contact surface 27b and a second contact surface 27c at a position interposing the support surface 27a in the facing direction of the pair of side surfaces 22c and 22d (the facing direction of the first clamping mechanism 20 and the second clamping mechanism 30).
- the first contact surface 27b and the second contact surface 27c constitute a bottom surface of the concave portion 25.
- the first contact surface 27b is a surface which is able to contact the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23.
- a contactable state includes a case in which the first contact surface 27b contacts the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23 and a case in which the first contact surface 27b does not contact the first yarn Y1 and the second yarn Y2.
- the second contact surface 27c is a surface which contacts the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23. As illustrated in FIG. 2 , the first contact surface 27b and the second contact surface 27c are provided at a position in which at least the first clamping member 24 and the second clamping member 26 contact.
- the first contact surface 27b is a flat surface which is continuous to one end of the support surface 27a (an end at the side of the side surface 22c).
- the second contact surface 27c is a flat surface which is continuous to the other end of the support surface 27a (an end at the side of the side surface 22d). That is, respective surfaces are provided in order of the second contact surface 27c, the support surface 27a, and the first contact surface 27b from the yarn splicing portion 10 when viewed from the facing direction of the pair of main surfaces 22a and 22b of the support portion 22. That is, the second contact surface 27c is disposed between the yarn splicing portion 10 and the clamping portion 23.
- the second contact surface 27c is located at the inside of the facing direction of the first clamping mechanism 20 and the second clamping mechanism 30 facing each other with the yarn splicing portion 10 interposed therebetween and the first contact surface 27b is located at the outside of the facing direction.
- the first contact surface 27b is substantially parallel to the main surfaces 22a and 22b.
- the first contact surface 27b is provided over the support surface 27a and the side surface 22c.
- the second contact surface 27c is substantially parallel to the main surfaces 22a and 22b.
- the second contact surface 27c is provided over the support surface 27a and the side surface 22d.
- the first contact surface 27b and the second contact surface 27c are located at the same height position in the facing direction of the pair of main surfaces 22a and 22b of the support portion 22.
- An angle of about 90° is formed between the second contact surface 27c and the side surface 22d. It is desirable to polish a surface of a top of a corner between the second contact surface 27c and the side surface 22d. In this configuration, it is possible to suppress the damage of the first yarn Y1 and the second yarn Y2 when the first yarn Y1 and the second yarn Y2 are separated from the top.
- the clamping portion 23 includes the first clamping member 24 and the second clamping member 26.
- Each of the first clamping member 24 and the second clamping member 26 is formed in a columnar shape.
- Each of the first clamping member 24 and the second clamping member 26 is formed of, for example, metal such as SUS having abrasion resistance. The diameter of each of the first clamping member 24 and the second clamping member 26 may be appropriately set.
- the first clamping member 24 and the second clamping member 26 are disposed at the support portion 22 so that respective end surfaces face each other. Specifically, the first clamping member 24 is disposed at the side of the front end portion of the support portion 22 and the second clamping member 26 is disposed at the side of the base end portion of the support portion 22 in relation to the first clamping member 24.
- the first clamping mechanism 20 holds a yarn by clamping the yarn between the end surface of the first clamping member 24 and the end surface of the second clamping member 26 in the clamping portion 23.
- the first clamping member 24 may be fixed to the support portion 22 and may be provided to be movable (slidable on the support surface 27a) in the facing direction of the first clamping member 24 and the second clamping member 26 (hereinafter, simply referred to as the "facing direction").
- a part of the second clamping member 26 is accommodated in the support portion 22 and a part of the second clamping member 26 is exposed in the concave portion 25 of the support portion 22.
- the second clamping member 26 is movably provided in the support portion 22.
- the second clamping member 26 moves in the facing direction.
- the second clamping member 26 is biased toward the first clamping member 24 by a biasing member (not illustrated) such as a spring. That is, the end surfaces of the second clamping member 26 and the first clamping member 24 are in contact with each other by a biasing force of a biasing member in a state in which a force other than the biasing member is not applied to the second clamping member 26.
- the second clamping member 26 moves in synchronization with the movement of the support portion 22.
- the second clamping member 26 moves in a direction moving away from the first clamping member 24 by the movement of the support portion 22 from the second position P2 (see FIG. 6B ) to the first position P1 (see FIG. 6A ).
- the second clamping member 26 can be pressed down in a direction opposite to the biasing direction of the biasing member by a cam mechanism (not illustrated) or the like when the support portion 22 moves from the second position P2 to the first position P1. Accordingly, a gap (space) is formed between the first clamping member 24 and the second clamping member 26 in the clamping portion 23.
- the movement of the second clamping member 26 may not be synchronized with the movement of the support portion 22.
- the second clamping mechanism 30 includes a support portion 32 and a clamping portion 33.
- the second clamping mechanism 30 clamps a yarn inserted through the chamber 14 of the yarn splicing portion 10.
- the support portion 32 has a rectangular parallelepiped shape (prismatic shape). As illustrated in FIG. 5 , the support portion 32 includes a pair of facing main surfaces 32a and 32b and a pair of facing side surfaces 32c and 32d.
- the side surface 32d is a surface which faces the side surface 12c of the yarn splicing nozzle 12.
- the support portion 32 holds the clamping portion 33.
- the support portion 32 is provided to be swingable. Specifically, as illustrated in FIG. 2 , a base end portion of the support portion 32 (one end portion of the longitudinal direction) is provided with a shaft 31.
- the shaft 31 is fixed to a frame (not illustrated) or the like.
- the support portion 32 swings about the shaft 31.
- the support portion 32 moves between a second position P2 (see FIG. 6B ) in which a front end portion (the other end portion of the longitudinal direction) moves close to the yarn splicing portion 10 and a first position P1 (see FIG. 6A ) in which the front end portion moves away from the yarn splicing portion 10 in relation to the second position P2.
- the support portion 32 moves by the driving of, for example, a driving portion (not illustrated) such as a cylinder.
- the driving portion may be the same as the driving portion that drives the support portion 22 or may be separately provided.
- one end portion of the longitudinal direction provided with the shaft 31 in the support portion 32 will be referred to as a base end portion and the other end portion of the longitudinal direction opposite to the one end portion will be referred to as a front end portion.
- the support portion 32 is provided with a concave portion 35.
- the concave portion 35 is provided at the side of the front end portion of the support portion 32.
- the concave portion 35 opens to the main surface 32a and the pair of side surfaces 32c and 32d of the support portion 32.
- the concave portion 35 exposes a part of the clamping portion 33.
- the concave portion 35 has a rectangular shape when viewed from the main surface 32a of the support portion 32.
- the concave portion 35 has a rectangular shape when viewed from the side surfaces 32c and 32d of the support portion 32.
- the support portion 32 includes a support surface 37a which slidably supports the second clamping member 36 (the first clamping member 34) to be described later in the clamping portion 33.
- the support surface 37a is provided at a center portion of the facing direction of the pair of side surfaces 32c and 32d of the support portion 32.
- the support surface 37a has a shape (a semi-circular shape) which is curved in a convex shape downward in response to the shape of the outer peripheral surface of the second clamping member 36 (the first clamping member 34).
- the support surface 37a extends in the longitudinal direction of the support portion 32.
- the support portion 32 includes a first contact surface 37b and a second contact surface 37c at a position interposing the support surface 37a in the facing direction of the pair of side surfaces 32c and 32d.
- the first contact surface 37b and the second contact surface 37c constitute a bottom surface of the concave portion 35.
- the first contact surface 37b is a surface which is able to contact the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 33.
- the second contact surface 37c is a surface which contacts the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 33.
- the first contact surface 37b and the second contact surface 37c are provided at a position in which at least the first clamping member 34 and the second clamping member 36 contact.
- the first contact surface 37b is a flat surface which is continuous to one end of the support surface 37a (an end at the side of the side surface 32c).
- the second contact surface 37c is a flat surface which is continuous to the other end of the support surface 37a (an end at the side of the side surface 32d). That is, respective surfaces are provided in order of the second contact surface 37c, the support surface 37a, and the first contact surface 37b from the yarn splicing portion 10 when viewed from the facing direction of the pair of main surfaces 32a and 32b of the support portion 32. That is, the second contact surface 37c is disposed between the yarn splicing portion 10 and the clamping portion 33.
- the second contact surface 37c is located at the inside of the facing direction of the first clamping mechanism 20 and the second clamping mechanism 30 facing each other with the yarn splicing portion 10 interposed therebetween and the first contact surface 37b is located at the outside of the facing direction.
- the first contact surface 37b is substantially parallel to the main surfaces 32a and 32b.
- the first contact surface 37b is provided over the support surface 37a and the side surface 32c.
- the second contact surface 37c is substantially parallel to the main surfaces 32a and 32b.
- the second contact surface 37c is provided over the support surface 37a and the side surface 32d.
- the first contact surface 37b and the second contact surface 37c are located at the same height position in the facing direction of the pair of main surfaces 32a and 32b of the support portion 32.
- An angle of about 90° is formed between the second contact surface 37c and the side surface 32d. It is desirable to polish a surface of a top of a corner formed by the second contact surface 37c and the side surface 32d.
- the clamping portion 33 includes the first clamping member 34 and the second clamping member 36.
- Each of the first clamping member 34 and the second clamping member 36 is formed in a columnar shape.
- Each of the first clamping member 34 and the second clamping member 36 is formed of, for example, metal such as SUS having abrasion resistance. The diameter of each of the first clamping member 34 and the second clamping member 36 may be appropriately set.
- the first clamping member 34 and the second clamping member 36 are disposed at the support portion 32 so that respective end surfaces face each other. Specifically, the first clamping member 34 is disposed at the side of the front end portion of the support portion 32 and the second clamping member 36 is disposed at the side of the base end portion of the support portion 32 in relation to the first clamping member 34.
- the second clamping mechanism 30 holds a yarn by clamping the yarn between the end surface of the first clamping member 34 and the end surface of the second clamping member 36 in the clamping portion 33.
- the first clamping member 34 may be fixed to the support portion 32 and may be provided to be movable in the facing direction of the first clamping member 34 and the second clamping member 36 (to be slidable on the support surface 37a).
- a part of the second clamping member 36 is accommodated in the support portion 32 and a part of the second clamping member 36 is exposed in the concave portion 35 of the support portion 32.
- the second clamping member 36 is movably provided in the support portion 32.
- the second clamping member 36 moves in the facing direction.
- the second clamping member 36 is biased toward the first clamping member 34 by a biasing member (not illustrated) such as a spring. That is, the end surfaces of the second clamping member 36 and the first clamping member 34 contact each other by a biasing force of a biasing member in a state in which a force other than the biasing member is not applied to the second clamping member 36.
- the second clamping member 36 moves in synchronization with the movement of the support portion 32.
- the second clamping member 36 moves in a direction moving away from the first clamping member 34 by the movement of the support portion 32 from a second position P2 (see FIG. 6B ) to a first position P1 (see FIG. 6A ).
- the second clamping member 36 is pressed down in a direction opposite to the biasing direction of the biasing member by a cam mechanism (not illustrated) or the like when the support portion 32 moves from the second position P2 to the first position P1. Accordingly, a gap (space) is formed between the first clamping member 34 and the second clamping member 36 in the clamping portion 33.
- the movement of the second clamping member 36 may not be synchronized with the movement of the support portion 32.
- the first yarn Y1 and the second yarn Y2 are set on the synthetic yarn splicer 1. Specifically, the first yarn Y1 and the second yarn Y2 are located in the chamber 14 through the slit 13 of the yarn splicing portion 10 and are disposed on the first clamping mechanism 20 and the second clamping mechanism 30 located at the first position P1. More specifically, the first yarn Y1 and the second yarn Y2 are disposed between the first clamping member 24 and the second clamping member 26 of the first clamping mechanism 20 and are disposed between the first clamping member 34 and the second clamping member 36 of the second clamping mechanism 30.
- first yarn Y1 and the second yarn Y2 are placed on the first contact surface 27b and the second contact surface 27c of the first clamping mechanism 20 and are placed on the first contact surface 37b and the second contact surface 37c of the second clamping mechanism 30.
- the operation portion 7 is operated (pressed down). Accordingly, in the synthetic yarn splicer 1, the driving portion is operated so that the first clamping mechanism 20 and the second clamping mechanism 30 are operated.
- first yarn Y1 and the second yarn Y2 are clamped by the first clamping member 24 and the second clamping member 26 of the first clamping mechanism 20. Further, the first yarn Y1 and the second yarn Y2 are clamped by the first clamping member 34 and the second clamping member 36 of the second clamping mechanism 30. Then, as illustrated in FIG. 6B , the first clamping mechanism 20 and the second clamping mechanism 30 move from the first position P1 to the second position P2. Accordingly, as illustrated in FIG. 7 , the first yarn Y1 and the second yarn Y2 are held between the clamping portion 23 and the clamping portion 33 in a loosened state. Further, the first yarn Y1 and the second yarn Y2 are held while contacting at least the second contact surface 27c and the second contact surface 37c.
- the operation portion 7 when the operation portion 7 is operated, air is injected from the injection hole 16a to the chamber 14 through the air flow path 16. Accordingly, the first yarn Y1 and the second yarn Y2 located inside the chamber 14 are spliced by the action of air to form an entangled portion.
- the operation of the operation portion 7 is cancelled. Accordingly, in the synthetic yarn splicer 1, the injection of air from the injection hole 16a to the chamber 14 is stopped and the first clamping mechanism 20 and the second clamping mechanism 30 are operated.
- the first clamping mechanism 20 and the second clamping mechanism 30 move from the second position P2 to the first position P1.
- the second clamping member 26 of the first clamping mechanism 20 moves in a direction moving away from the first clamping member 24 and the clamping of the first yarn Y1 and the second yarn Y2 by the first clamping member 24 and the second clamping member 26 is cancelled.
- the second clamping member 36 moves in a direction moving away from the first clamping member 34 and the clamping of the first yarn Y1 and the second yarn Y2 by the first clamping member 34 and the second clamping member 36 is cancelled.
- the clamping of the first yarn Y1 and the second yarn Y2 by the first clamping member 24 and the second clamping member 26 may be cancelled after the first clamping mechanism 20 moves from the second position P2 to the first position P1.
- the clamping of the first yarn Y1 and the second yarn Y2 by the first clamping member 34 and the second clamping member 36 may be cancelled after the second clamping mechanism 30 moves from the second position P2 to the first position P1.
- the first yarn Y1 and the second yarn Y2 held by the first clamping mechanism 20 and the second clamping mechanism 30 are swayed inside the chamber 14 by using the clamping positions of the first clamping mechanism 20 and the second clamping mechanism 30 as fixed points to form the entangled portion.
- the diameter R2 of the injection hole 16a is smaller than ⁇ 0.8mm, air does not effectively act on the first yarn Y1 and the second yarn Y2 since a force of air injected into the chamber 14 is small and it is difficult to form the entangled portion since the first yarn Y1 and the second yarn Y2 are not appropriately swayed inside the chamber 14.
- the diameter R2 of the injection hole 16a is equal to or larger than ⁇ 0.8 mm and equal to or smaller than ⁇ 1.3 mm. Accordingly, in the synthetic yarn splicer 1, since air can effectively act on the first yarn Y1 and the second yarn Y2 even in the case of the yarn of which the thickness is thin and the number of filaments is small, the first yarn Y1 and the second yarn Y2 are appropriately swayed inside the chamber 14 and hence the entangled portion can be appropriately formed. Thus, in the synthetic yarn splicer 1, it is possible to form the entangled portion and to suppress a decrease in tensile elongation of the entangled portion in the case of the yarn of which the thickness is thin and the number of filaments is small.
- the chamber 14 has a circular shape when viewed from the penetration direction of the chamber 14.
- the diameter R1 of the chamber 14 is equal to or larger than ⁇ 3.0 mm and equal to or smaller than ⁇ 4.0 mm.
- the diameter R1 of the chamber 14 is smaller than ⁇ 3.0 mm, the yarn easily contacts the inner peripheral surface of the chamber 14 and it is difficult for the yarns to turn inside the chamber 14 when the first yarn Y1 and the second yarn Y2 are swayed inside the chamber 14. For that reason, there is concern that the entangled portion is not appropriately formed.
- the diameter R1 of the chamber 14 is larger than ⁇ 4.0 mm, air injected from the injection hole 16a can be injected into the chamber 14.
- the synthetic yarn splicer 1 since the diameter R1 of the chamber 14 is equal to or larger than ⁇ 3.0 mm and equal to or smaller than ⁇ 4.0 mm, it is possible to suppress an influence due to the contact with the inner peripheral surface of the chamber 14 and to appropriately apply air to the first yarn Y1 and the second yarn Y2. Thus, in the synthetic yarn splicer 1, it is possible to more reliably form the entangled portion and to further suppress a decrease in tensile elongation of the entangled portion in the case of the yarn of which the thickness is thin and the number of filaments is small.
- the synthetic yarn splicer 1 splices the first yarn Y1 and the second yarn Y2 of which the thickness is 55 dtex or less and the number of filaments is 10f or less. It is difficult to form the entangled portion in the yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less. Since the synthetic yarn splicer 1 has the above-described configuration, it is possible to form the entangled portion also in the yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less.
- FIGS. 7A and 8A are diagrams showing a tensile elongation measurement result of an entangled portion when the entangled portion is formed by changing a combination of the diameter R1 of the chamber 14 and the diameter R2 of the injection hole 16a in the synthetic yarn splicer 1 according to the embodiment.
- the measurement result shown in FIGS. 7A and 8A corresponds to an average value obtained from seven measurement results in which the dropout of the yarn of the entangled portion does not occur after a tensile test is performed on the entangled portion. Furthermore, when the dropout of the yarn was found three times, the measurement ended at that time point. For that reason, the measurement result in which the dropout of the yarn occurred three times corresponds to one measurement result or an average value of plural measurement results.
- FIGS. 7A and 8A show a result in a case in which the pressure of air injected from the injection hole 16a is set to 7 kgf/cm 2 .
- the yarn is a pre-oriented yarn (POY).
- " ⁇ " indicates a state in which the entangled portion is not formed.
- the yarn corresponding to a measurement target in FIG. 7A is 40dtex-10f.
- the tensile elongation of the yarn (original yarn) without the entangled portion used for the measurement in FIG. 7A was 64.6 (%) (hereinafter, referred to as the "original yarn elongation A").
- the yarn corresponding to the measurement target in FIG. 8A is 20dtex-5f.
- the tensile elongation of the yarn without the entangled portion used for the measurement in FIG. 8A was 68.6 (%) (hereinafter, referred to as the "original yarn elongation B").
- the entangled portion was not formed regardless of the first yarn Y1 and the second yarn Y2.
- the diameter R1 of the chamber 14 was ⁇ 3.0 mm, ⁇ 3.5 mm, and ⁇ 4.0 mm and the diameter R1 was ⁇ 4.5 mm, ⁇ 5.5 mm, and ⁇ 6.0 mm, no big difference was found in the tensile elongation decrease amount (%) for each of the original yarn elongations A and B when the diameter R2 of the injection hole 16a was ⁇ 0.8 mm, ⁇ 1.0 mm, and ⁇ 1.3 mm.
- FIGS. 9A and 9B show a CV value (a value obtained by dividing a standard deviation calculated based on a plurality of measurement results of tensile elongation by the average value of tensile elongation) in a predetermined combination of the diameter R1 of the chamber 14 and the diameter R2 of the injection hole 16a.
- FIG. 9A shows a result of a yarn of 40dtex-10f.
- FIG. 9B shows a result of a yarn of 20dtex-5f.
- the original yarn elongation A is 64.6 (%) and the CV value of the original yarn is 3.4 %.
- the diameter R1 of the chamber 14 is ⁇ 3.5 mm and the diameter R2 of the injection hole 16a is ⁇ 1.0 mm
- the average value of the tensile elongation is 59.7 (%) and the CV value is 4.5 (%).
- the diameter R1 of the chamber 14 is ⁇ 4.0 mm and the diameter R2 of the injection hole 16a is ⁇ 1.3 mm
- the average value of the tensile elongation is 58.2 (%) and the CV value is 5.7 (%).
- the CV value is small in any case as compared with a case in which the diameter R1 of the chamber 14 is ⁇ 6.0 mm. That is, a change in tensile elongation decrease amount (%) is small in any case.
- the original yarn elongation B was 68.6 (%) and the CV value of the original yarn was 2.5%.
- the diameter R1 of the chamber 14 is ⁇ 3.5 mm and the diameter R2 of the injection hole 16a is ⁇ 1.0 mm
- the average value of the tensile elongation is 57.9 (%) and the CV value is 6.8 (%).
- the diameter R1 of the chamber 14 is ⁇ 4.0 mm and the diameter R2 of the injection hole 16a is ⁇ 1.3 mm
- the average value of the tensile elongation is 50.8 (%) and the CV value is 11.0 (%).
- the CV value is small in any case as compared with a case in which the diameter R1 of the chamber 14 is ⁇ 6.0 mm. That is, a change in tensile elongation decrease amount (%) is small in any case.
- the synthetic yarn splicer 1 it was found that the entangled portion could be stably formed in the yarn of 20dtex-5f.
- FIGS. 7B and 8B show the number of times of the dropout of the yarn due to a tensile test.
- a tensile test an entangled portion is formed in the first yarn Y1 and the second yarn Y2 by using the synthetic yarn splicer 1 and then the entangled portion is pulled from both sides by a predetermined force.
- a tensile force is applied to the first yarn Y1 and the second yarn Y2 so that the entangled portion is unraveled and the coupling of the first yarn Y1 and the second yarn Y2 cannot be maintained, the dropout of the yarn occurs.
- the diameter R2 of the injection hole 16a is equal to or larger than ⁇ 0.8 mm and equal to or smaller than ⁇ 1.3 mm and the diameter R1 of the chamber 14 is equal to or larger than ⁇ 3.0 mm and equal to or smaller than ⁇ 4.0 mm, the number of times of the dropout of the yarn is relatively small and the CV value is small as compared with the other combinations. For that reason, when the diameter R2 of the injection hole 16a was equal to or larger than ⁇ 0.8 mm and equal to or smaller than ⁇ 1.3 mm and the diameter R1 of the chamber 14 was equal to or larger than ⁇ 3.0 mm and equal to or smaller than ⁇ 4.0 mm, it was found that the entangled portion could be stably formed in the yarn of 20dtex-5f.
- a shape illustrated in FIG. 1 has been described as the shape of the main body 3.
- the shape of the main body 3 is not limited to the shape illustrated in FIG. 1 .
- first clamping members 24 and 34 and the second clamping members 26 and 36 are formed in a columnar shape, that is, the cross-sections of the first clamping members 24 and 34 and the second clamping members 26 and 36 are formed in a circular shape has been described.
- first clamping member and the second clamping member are not limited to the columnar shape as long as the yarn can be clamped, but may be formed in various shapes (for example, prismatic shapes or the like).
- the support portions 22 and 32 may move in a direction moving close to each other and moving away from each other, for example, in a substantially parallel state.
- first yarn Y1 and the second yarn Y2 are disposed on the first clamping mechanism 20 and the second clamping mechanism 30 located at the second position P2, the first clamping mechanism 20 and the second clamping mechanism 30 are moved from the second position P2 to the first position P1, the first clamping mechanism 20 and the second clamping mechanism 30 are moved from the first position P1 to the second position P2, and air is injected from the injection hole 16a to the chamber 14 to form an entangled portion.
- the synthetic yarn splicer 1 is a hand splicer used while being gripped by an operator.
- the synthetic yarn splicer may be provided in an apparatus or the like.
Description
- The invention relates to a synthetic yarn splicer.
- As a conventional synthetic yarn splicer, for example, one described in Patent Literature 1 (
Japanese Unexamined Patent Publication No. H10-17214 Patent Literature 1, a starting end and a terminating end of two synthetic yarns are aligned in the opposite directions to be drawn into an air nozzle, both side portions outside the air nozzle of the drawn yarn end are pressed down, the pressed both side portions are moved into the air nozzle, the aligned yarn end is loosened inside the air nozzle, and the yarns are spliced by an air flow inside the air nozzle. TheUS 5,280,698 A discloses a thread splicing arrangement having a splicing head and holing devices at the ends of the splicing channel for clamping single ends of the threads during the splicing. TheEP 1 420 091 A1JP 2002 302342 A JP S60 144281 A claim 1. - The synthetic yarn splicer is used to splice a terminating end of a yarn of one supply bobbin and a starting end of a yarn of the other supply bobbin in, for example, a yarn winding machine for winding synthetic fibers. In the yarn winding machine, the yarn is wound around a bobbin while applying a tension to the yarn to form a package. For that reason, an entangled portion obtained by splicing the yarns by the synthetic yarn splicer is pulled while a tension is applied thereto. In the yarn winding machine, when the entangled portion is unwound during the winding operation, the winding operation must be temporarily stopped and hence the production efficiency is lowered. For that reason, there is a demand for forming an entangled portion having a tensile elongation capable of withstanding a winding tension in the synthetic yarn splicer.
- In the conventional synthetic yarn splicer, there is a possibility that the entangled portion cannot be appropriately formed according to the type of yarn. In particular, since it is difficult to entangle the synthetic yarn of which the thickness is thin and the number of filaments is small, an entangled portion is not formed or even an entangled portion is unraveled. For that reason, in the case of the synthetic yarn of which the thickness is thin and the number of filaments is small, a splicing operation is manually performed by an operator. However, since there is a change in quality of the entangled portion in the case of the entangled portion which is manually formed by the operator according to a skill or the like of the operator, it is not possible to stably form the entangled portion having a tensile elongation capable of withstanding a winding tension. Further, since the yarn is connected at one position in the case of the entangled portion which is manually formed by the operator, the yarn can be easily broken. Thus, in the synthetic yarn splicer, there has been a demand for forming an entangled portion having a tensile elongation capable of withstanding a winding tension even in a yarn of which the thickness is thin and the number of filaments is small.
- An aspect of the invention is to provide a synthetic yarn splicer capable of suppressing a decrease in tensile elongation of an entangled portion.
- A synthetic yarn splicer according to an aspect of the invention is a synthetic yarn splicer according to
claim 1 that splices one yarn and the other yarn formed of synthetic fibers, including: a yarn splicing portion that includes a passage which forms a space through which the one yarn and the other yarn are insertable and an injection hole which opens to the passage and injects a fluid; and a pair of clamping mechanisms that is provided at a position interposing the passage of the yarn splicing portion and clamps each of the one yarn and the other yarn inserted through the space, in which the injection hole has a circular shape, and in which a diameter of the injection hole is equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm. - In the synthetic yarn splicer according to an aspect of the invention, one yarn and the other yarn clamped by the pair of clamping mechanisms are swayed inside the passage by using a position clamped by the clamping mechanism as a fixed point to form an entangled portion. When the diameter of the injection hole is smaller than φ0.8 mm, a force of a fluid injected into the passage is small. For this reason, since the fluid does not appropriately act on one yarn and the other yarn and one yarn and the other yarn are not appropriately swayed inside the passage, it is difficult to form the entangled portion. When the diameter of the injection hole is larger than φ1.3 mm, there is a concern that the fluid excessively acts on one yarn and the other yarn and hence it is difficult to appropriately form the entangled portion. In the synthetic yarn splicer of the invention, the diameter of the injection hole is equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm. Accordingly, in the synthetic yarn splicer, since the fluid can be appropriately act on one yarn and the other yarn and one yarn and the other yarn are appropriately swayed inside the passage, the entangled portion can be appropriately formed. Thus, in the synthetic yarn splicer, the entangled portion of the yarn can be formed and a decrease in tensile elongation of the entangled portion can be suppressed.
- In one embodiment, a diameter of the injection hole may be equal to or larger than φ1.0 mm and equal to or smaller than φ1.3 mm. In this configuration, the entangled portion can be more appropriately formed.
- In the synthetic yarn splicer, the passage has a circular shape when viewed from a penetration direction of the passage and a diameter of the passage is equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm. When the diameter of the passage is smaller than φ3.0 mm, one yarn and the other yarn swayed inside the passage easily contact the inner peripheral surface of the passage and hence it is difficult for the yarn to be turned inside the passage. For that reason, there is a concern that the entangled portion is not appropriately formed. When the diameter of the passage is larger than φ4.0 mm, the fluid injected from the injection hole can be dispersed inside the passage. Accordingly, since the fluid do not appropriately act on one yarn and the other yarn, it is difficult to form the entangled portion. In the synthetic yarn splicer, since the diameter of the passage is equal to or larger than φ3.0mm and equal to or smaller than φ4.0 mm, it is possible to suppress an influence due to the contact with the inner peripheral surface of the passage and to effectively apply the fluid to one yarn and the other yarn. Thus, in the synthetic yarn splicer, the entangled portion of the yarn can be more reliably formed and a decrease in tensile elongation of the entangled portion can be further suppressed.
- In one embodiment, the one yarn and the other yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less may be spliced. It is difficult to form the entangled portion in the yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less. Since the synthetic yarn splicer has the above-described configuration, it is possible to form the entangled portion also in the yarn of which the thickness of 55 dtex or less and the number of filaments is 10f or less, that is, the number of filaments is small.
- According to an aspect of the invention, it is possible to suppress a decrease in tensile elongation of an entangled portion.
-
-
FIG. 1 is a perspective view illustrating a synthetic yarn splicer according to an embodiment. -
FIG. 2 is a view illustrating a yarn splicing mechanism when viewed from above. -
FIG. 3 is a side view of the yarn splicing mechanism. -
FIG. 4 is a cross-sectional view of a yarn splicing portion. -
FIG. 5 is a cross-sectional view taken along a line V-V ofFIG. 2 . -
FIG. 6A is a diagram illustrating an operation of the yarn splicing mechanism. -
FIG. 6B is a diagram illustrating an operation of the yarn splicing mechanism. -
FIG. 7A is a diagram showing a measurement result. -
FIG. 7B is a diagram showing a measurement result. -
FIG. 8A is a diagram showing a measurement result. -
FIG. 8B is a diagram showing a measurement result. -
FIG. 9A is a diagram showing a measurement result. -
FIG. 9B is a diagram showing a measurement result. - Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. Furthermore, in the description of the drawings, the same reference numerals will be given to the same or equivalent components and the repetitive description will be omitted.
- A
synthetic yarn splicer 1 illustrated inFIG. 1 is a device which performs a splicing operation between a yarn end of a first yarn (one yarn) Y1 (seeFIG. 6A ) formed of synthetic fibers and a yarn end of a second yarn (the other yarn) Y2 (seeFIG. 6A ) formed of synthetic fibers. In the embodiment, thesynthetic yarn splicer 1 splices a first yarn Y1 and a second yarn Y2 of which the thickness is 55 dtex or less and the number of filaments is 10f or less. Thesynthetic yarn splicer 1 is used to perform a splicing operation between a terminating end of a yarn of one supply bobbin and a starting end of a yarn of the other supply bobbin, for example, in a yarn winding machine that winds a yarn from a supply bobbin to form a package. In the embodiment, thesynthetic yarn splicer 1 is a so-called hand splicer. - The
synthetic yarn splicer 1 includes amain body 3 and ayarn splicing mechanism 5. Themain body 3 is a casing which accommodates theyarn splicing mechanism 5. Themain body 3 includes a firstmain body portion 3a and a secondmain body portion 3b. Themain body 3 is formed in, for example, a substantially L shape in the side view. - The first
main body portion 3a is a portion which is gripped by an operator when thesynthetic yarn splicer 1 is used. The firstmain body portion 3a has, for example, a substantially rectangular parallelepiped shape. The firstmain body portion 3a is provided with an operation portion 7. The operation portion 7 is a button which is operated when performing a splicing operation in thesynthetic yarn splicer 1. In the embodiment, the operation portion 7 is provided at a portion which is located within an operation range of an index finger when the firstmain body portion 3a is gripped by the operator at the side of one end portion (the side of the secondmain body portion 3b) of the firstmain body portion 3a in the longitudinal direction. - The lower end portion of the first
main body portion 3a (the other end portion of the longitudinal direction) is provided with aconnection portion 9. A tube (not illustrated) supplying compressed air (fluid) (hereinafter, simply referred to as "air") is connected to theconnection portion 9. The firstmain body portion 3a may accommodate a switch which is operated in synchronization with the operation of the operation portion 7 and components branching compressed air supplied through theconnection portion 9. - The second
main body portion 3b is provided with theyarn splicing mechanism 5. The secondmain body portion 3b has, for example, a substantially rectangular parallelepiped shape. The secondmain body portion 3b is provided at one end portion of the firstmain body portion 3a. Specifically, the secondmain body portion 3b is integrally formed with the firstmain body portion 3a so that a predetermined angle (for example, 90° or less) is formed between the longitudinal direction of the secondmain body portion 3b and the longitudinal direction of the firstmain body portion 3a. The secondmain body portion 3b exposes theyarn splicing mechanism 5. The secondmain body portion 3b accommodates a driving portion or the like (for example, a cylinder or the like) which drives afirst clamping mechanism 20 and asecond clamping mechanism 30 to be described later. - As illustrated in
FIG. 2 or3 , theyarn splicing mechanism 5 includes ayarn splicing portion 10, thefirst clamping mechanism 20, and thesecond clamping mechanism 30. Thefirst clamping mechanism 20 and thesecond clamping mechanism 30 are provided at a position that interposes achamber 14 of theyarn splicing portion 10. - As illustrated in
FIG. 4 , theyarn splicing portion 10 includes ayarn splicing nozzle 12, aslit 13, a chamber (a passage) 14, and anair flow passage 16. - The
yarn splicing nozzle 12 is a block body which is formed of metal or ceramic. Theyarn splicing nozzle 12 includes anupper surface 12a and a pair of side surfaces 12b and 12c. Theslit 13 is provided in theyarn splicing nozzle 12. Theslit 13 is a portion which communicates with thechamber 14 and introduces a yarn into thechamber 14. Theslit 13 is provided over theupper surface 12a of theyarn splicing nozzle 12 and thechamber 14. The width of theslit 13 is, for example, 0.4 mm. An upper portion of theslit 13 is provided with aninclined surface 15. Theinclined surface 15 guides a yarn to theslit 13. Theinclined surface 15 has a tapered shape which is narrowed from anupper surface 12a of theyarn splicing nozzle 12 toward theslit 13. - The
chamber 14 is a passage through which a first yarn Y1 and a second yarn Y2 are inserted. As illustrated inFIG. 5 , thechamber 14 penetrates oneside surface 12b and theother side surface 12c of theyarn splicing nozzle 12. That is, the penetration direction of thechamber 14 is a facing direction of the pair of side surfaces 12b and 12c and is orthogonal to the insertion direction of the first yarn Y1 and the second yarn Y2 with respect to theslit 13. Thechamber 14 forms a space through which the first yarn Y1 and the second yarn Y2 are insertable. As illustrated inFIG. 4 , thechamber 14 has a circular shape when viewed from the side surfaces 12b and 12c. In the embodiment, thechamber 14 has a true circular shape. The diameter R1 of thechamber 14 is equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm. - The
air flow path 16 circulates air to be supplied to thechamber 14. Theair flow path 16 includes aninjection hole 16a which opens to thechamber 14. Theinjection hole 16a communicates theair flow path 16 with thechamber 14. Air is injected from theinjection hole 16a to thechamber 14. Theinjection hole 16a has a circular shape. In the embodiment, theinjection hole 16a has a true circular shape. The diameter of theinjection hole 16a is desirably equal to or larger than φ0.8mm and equal to or smaller than φ1.3 mm and more desirably equal to or larger than φ1.0 mm and equal to or smaller than φ1.3 mm. In the embodiment, theinjection hole 16a is disposed on a line passing through the center of thechamber 14 and orthogonal to the insertion direction of the first yarn Y1 and the second yarn Y2 with respect to theslit 13. Aconnection portion 18 is provided at the upstream side of the air flow passage 16 (the side opposite to theinjection hole 16a). A supply pipe or the like supplying air is connected to theconnection portion 18. - As illustrated in
FIGS. 2 and3 , thefirst clamping mechanism 20 includes asupport portion 22 and a clampingportion 23. Thefirst clamping mechanism 20 clamps a yarn inserted through thechamber 14 of theyarn splicing portion 10. - The
support portion 22 has a rectangular parallelepiped shape (prismatic shape). As illustrated inFIG. 5 , thesupport portion 22 includes a pair of facingmain surfaces side surface 22d is a surface which faces theside surface 12b in theyarn splicing nozzle 12. - The
support portion 22 holds the clampingportion 23. Thesupport portion 22 is provided to be swingable. Specifically, as illustrated inFIG. 2 , a base end portion of the support portion 22 (one end portion of the longitudinal direction) is provided with ashaft 21. Theshaft 21 is fixed to a frame (not illustrated) or the like. Thesupport portion 22 swings about theshaft 21. Thesupport portion 22 moves between a second position P2 (seeFIG. 6B ) in which a front end portion (the other end portion of the longitudinal direction) moves close to theyarn splicing portion 10 and a first position P1 (seeFIG. 6A ) in which the front end portion moves away from theyarn splicing portion 10 in relation to the second position P2. That is, thefirst clamping mechanism 20 moves between the first position P1 and the second position P2. Thesupport portion 22 moves by the driving of, for example, a driving portion (not illustrated) such as a cylinder. In the embodiment, as described above, one end portion of the longitudinal direction provided with theshaft 21 in thesupport portion 22 will be referred to as a base end portion and the other end portion of the longitudinal direction opposite to the one end portion will be referred to as a front end portion. - The
support portion 22 is provided with aconcave portion 25. Theconcave portion 25 is provided at the side of the front end portion of thesupport portion 22. Theconcave portion 25 opens to themain surface 22a and the pair of side surfaces 22c and 22d of thesupport portion 22. Theconcave portion 25 exposes a part of the clampingportion 23. As illustrated inFIG. 2 , theconcave portion 25 has a rectangular shape when viewed from themain surface 22a of thesupport portion 22. As illustrated inFIG. 3 , theconcave portion 25 has a rectangular shape when viewed from theside surface 22c of thesupport portion 22. - As illustrated in
FIG. 5 , thesupport portion 22 includes asupport surface 27a which slidably supports a second clamping member 26 (a first clamping member 24) to be described later in the clampingportion 23. Thesupport surface 27a is provided at a center portion in the facing direction of the pair of side surfaces 22c and 22d of thesupport portion 22. Thesupport surface 27a has a shape (a semi-circular shape) which is curved in a convex shape downward in response to the shape of the outer peripheral surface of the second clamping member 26 (the first clamping member 24). Thesupport surface 27a extends in the longitudinal direction of thesupport portion 22. - The
support portion 22 includes afirst contact surface 27b and asecond contact surface 27c at a position interposing thesupport surface 27a in the facing direction of the pair of side surfaces 22c and 22d (the facing direction of thefirst clamping mechanism 20 and the second clamping mechanism 30). Thefirst contact surface 27b and thesecond contact surface 27c constitute a bottom surface of theconcave portion 25. Thefirst contact surface 27b is a surface which is able to contact the first yarn Y1 and the second yarn Y2 clamped by the clampingportion 23. A contactable state includes a case in which thefirst contact surface 27b contacts the first yarn Y1 and the second yarn Y2 clamped by the clampingportion 23 and a case in which thefirst contact surface 27b does not contact the first yarn Y1 and the second yarn Y2. Thesecond contact surface 27c is a surface which contacts the first yarn Y1 and the second yarn Y2 clamped by the clampingportion 23. As illustrated inFIG. 2 , thefirst contact surface 27b and thesecond contact surface 27c are provided at a position in which at least the first clampingmember 24 and thesecond clamping member 26 contact. - As illustrated in
FIG. 5 , thefirst contact surface 27b is a flat surface which is continuous to one end of thesupport surface 27a (an end at the side of theside surface 22c). Thesecond contact surface 27c is a flat surface which is continuous to the other end of thesupport surface 27a (an end at the side of theside surface 22d). That is, respective surfaces are provided in order of thesecond contact surface 27c, thesupport surface 27a, and thefirst contact surface 27b from theyarn splicing portion 10 when viewed from the facing direction of the pair ofmain surfaces support portion 22. That is, thesecond contact surface 27c is disposed between theyarn splicing portion 10 and the clampingportion 23. Thesecond contact surface 27c is located at the inside of the facing direction of thefirst clamping mechanism 20 and thesecond clamping mechanism 30 facing each other with theyarn splicing portion 10 interposed therebetween and thefirst contact surface 27b is located at the outside of the facing direction. - The
first contact surface 27b is substantially parallel to themain surfaces first contact surface 27b is provided over thesupport surface 27a and theside surface 22c. Thesecond contact surface 27c is substantially parallel to themain surfaces second contact surface 27c is provided over thesupport surface 27a and theside surface 22d. Thefirst contact surface 27b and thesecond contact surface 27c are located at the same height position in the facing direction of the pair ofmain surfaces support portion 22. - An angle of about 90° is formed between the
second contact surface 27c and theside surface 22d. It is desirable to polish a surface of a top of a corner between thesecond contact surface 27c and theside surface 22d. In this configuration, it is possible to suppress the damage of the first yarn Y1 and the second yarn Y2 when the first yarn Y1 and the second yarn Y2 are separated from the top. - As illustrated in
FIG. 2 , the clampingportion 23 includes the first clampingmember 24 and thesecond clamping member 26. Each of the first clampingmember 24 and thesecond clamping member 26 is formed in a columnar shape. Each of the first clampingmember 24 and thesecond clamping member 26 is formed of, for example, metal such as SUS having abrasion resistance. The diameter of each of the first clampingmember 24 and thesecond clamping member 26 may be appropriately set. - The
first clamping member 24 and thesecond clamping member 26 are disposed at thesupport portion 22 so that respective end surfaces face each other. Specifically, the first clampingmember 24 is disposed at the side of the front end portion of thesupport portion 22 and thesecond clamping member 26 is disposed at the side of the base end portion of thesupport portion 22 in relation to the first clampingmember 24. Thefirst clamping mechanism 20 holds a yarn by clamping the yarn between the end surface of the first clampingmember 24 and the end surface of thesecond clamping member 26 in the clampingportion 23. - A part of the first clamping
member 24 is accommodated in thesupport portion 22 and a part of the first clampingmember 24 is exposed in theconcave portion 25 of thesupport portion 22. Thefirst clamping member 24 may be fixed to thesupport portion 22 and may be provided to be movable (slidable on thesupport surface 27a) in the facing direction of the first clampingmember 24 and the second clamping member 26 (hereinafter, simply referred to as the "facing direction"). - A part of the
second clamping member 26 is accommodated in thesupport portion 22 and a part of thesecond clamping member 26 is exposed in theconcave portion 25 of thesupport portion 22. Thesecond clamping member 26 is movably provided in thesupport portion 22. Thesecond clamping member 26 moves in the facing direction. Thesecond clamping member 26 is biased toward the first clampingmember 24 by a biasing member (not illustrated) such as a spring. That is, the end surfaces of thesecond clamping member 26 and the first clampingmember 24 are in contact with each other by a biasing force of a biasing member in a state in which a force other than the biasing member is not applied to thesecond clamping member 26. - The
second clamping member 26 moves in synchronization with the movement of thesupport portion 22. Thesecond clamping member 26 moves in a direction moving away from the first clampingmember 24 by the movement of thesupport portion 22 from the second position P2 (seeFIG. 6B ) to the first position P1 (seeFIG. 6A ). Specifically, thesecond clamping member 26 can be pressed down in a direction opposite to the biasing direction of the biasing member by a cam mechanism (not illustrated) or the like when thesupport portion 22 moves from the second position P2 to the first position P1. Accordingly, a gap (space) is formed between the first clampingmember 24 and thesecond clamping member 26 in the clampingportion 23. Furthermore, the movement of thesecond clamping member 26 may not be synchronized with the movement of thesupport portion 22. - As illustrated in
FIGS. 2 and3 , thesecond clamping mechanism 30 includes asupport portion 32 and a clampingportion 33. Thesecond clamping mechanism 30 clamps a yarn inserted through thechamber 14 of theyarn splicing portion 10. - The
support portion 32 has a rectangular parallelepiped shape (prismatic shape). As illustrated inFIG. 5 , thesupport portion 32 includes a pair of facingmain surfaces side surface 32d is a surface which faces theside surface 12c of theyarn splicing nozzle 12. - The
support portion 32 holds the clampingportion 33. Thesupport portion 32 is provided to be swingable. Specifically, as illustrated inFIG. 2 , a base end portion of the support portion 32 (one end portion of the longitudinal direction) is provided with ashaft 31. Theshaft 31 is fixed to a frame (not illustrated) or the like. Thesupport portion 32 swings about theshaft 31. Thesupport portion 32 moves between a second position P2 (seeFIG. 6B ) in which a front end portion (the other end portion of the longitudinal direction) moves close to theyarn splicing portion 10 and a first position P1 (seeFIG. 6A ) in which the front end portion moves away from theyarn splicing portion 10 in relation to the second position P2. That is, thefirst clamping mechanism 20 moves between the first position P1 and the second position P2. Thesupport portion 32 moves by the driving of, for example, a driving portion (not illustrated) such as a cylinder. The driving portion may be the same as the driving portion that drives thesupport portion 22 or may be separately provided. In the embodiment, as described above, one end portion of the longitudinal direction provided with theshaft 31 in thesupport portion 32 will be referred to as a base end portion and the other end portion of the longitudinal direction opposite to the one end portion will be referred to as a front end portion. - The
support portion 32 is provided with aconcave portion 35. Theconcave portion 35 is provided at the side of the front end portion of thesupport portion 32. Theconcave portion 35 opens to themain surface 32a and the pair of side surfaces 32c and 32d of thesupport portion 32. Theconcave portion 35 exposes a part of the clampingportion 33. As illustrated inFIG. 2 , theconcave portion 35 has a rectangular shape when viewed from themain surface 32a of thesupport portion 32. Theconcave portion 35 has a rectangular shape when viewed from the side surfaces 32c and 32d of thesupport portion 32. - As illustrated in
FIG 5 , thesupport portion 32 includes asupport surface 37a which slidably supports the second clamping member 36 (the first clamping member 34) to be described later in the clampingportion 33. Thesupport surface 37a is provided at a center portion of the facing direction of the pair of side surfaces 32c and 32d of thesupport portion 32. Thesupport surface 37a has a shape (a semi-circular shape) which is curved in a convex shape downward in response to the shape of the outer peripheral surface of the second clamping member 36 (the first clamping member 34). Thesupport surface 37a extends in the longitudinal direction of thesupport portion 32. - The
support portion 32 includes afirst contact surface 37b and asecond contact surface 37c at a position interposing thesupport surface 37a in the facing direction of the pair of side surfaces 32c and 32d. Thefirst contact surface 37b and thesecond contact surface 37c constitute a bottom surface of theconcave portion 35. Thefirst contact surface 37b is a surface which is able to contact the first yarn Y1 and the second yarn Y2 clamped by the clampingportion 33. Thesecond contact surface 37c is a surface which contacts the first yarn Y1 and the second yarn Y2 clamped by the clampingportion 33. As illustrated inFIG. 2 , thefirst contact surface 37b and thesecond contact surface 37c are provided at a position in which at least the first clampingmember 34 and thesecond clamping member 36 contact. - As illustrated in
FIG 5 , thefirst contact surface 37b is a flat surface which is continuous to one end of thesupport surface 37a (an end at the side of theside surface 32c). Thesecond contact surface 37c is a flat surface which is continuous to the other end of thesupport surface 37a (an end at the side of theside surface 32d). That is, respective surfaces are provided in order of thesecond contact surface 37c, thesupport surface 37a, and thefirst contact surface 37b from theyarn splicing portion 10 when viewed from the facing direction of the pair ofmain surfaces support portion 32. That is, thesecond contact surface 37c is disposed between theyarn splicing portion 10 and the clampingportion 33. Thesecond contact surface 37c is located at the inside of the facing direction of thefirst clamping mechanism 20 and thesecond clamping mechanism 30 facing each other with theyarn splicing portion 10 interposed therebetween and thefirst contact surface 37b is located at the outside of the facing direction. - The
first contact surface 37b is substantially parallel to themain surfaces first contact surface 37b is provided over thesupport surface 37a and theside surface 32c. Thesecond contact surface 37c is substantially parallel to themain surfaces second contact surface 37c is provided over thesupport surface 37a and theside surface 32d. Thefirst contact surface 37b and thesecond contact surface 37c are located at the same height position in the facing direction of the pair ofmain surfaces support portion 32. - An angle of about 90° is formed between the
second contact surface 37c and theside surface 32d. It is desirable to polish a surface of a top of a corner formed by thesecond contact surface 37c and theside surface 32d. - As illustrated in
FIG. 2 , the clampingportion 33 includes the first clampingmember 34 and thesecond clamping member 36. Each of the first clampingmember 34 and thesecond clamping member 36 is formed in a columnar shape. Each of the first clampingmember 34 and thesecond clamping member 36 is formed of, for example, metal such as SUS having abrasion resistance. The diameter of each of the first clampingmember 34 and thesecond clamping member 36 may be appropriately set. - The
first clamping member 34 and thesecond clamping member 36 are disposed at thesupport portion 32 so that respective end surfaces face each other. Specifically, the first clampingmember 34 is disposed at the side of the front end portion of thesupport portion 32 and thesecond clamping member 36 is disposed at the side of the base end portion of thesupport portion 32 in relation to the first clampingmember 34. Thesecond clamping mechanism 30 holds a yarn by clamping the yarn between the end surface of the first clampingmember 34 and the end surface of thesecond clamping member 36 in the clampingportion 33. - A part of the first clamping
member 34 is accommodated in thesupport portion 32 and a part of the first clampingmember 34 is exposed in theconcave portion 35 of thesupport portion 32. Thefirst clamping member 34 may be fixed to thesupport portion 32 and may be provided to be movable in the facing direction of the first clampingmember 34 and the second clamping member 36 (to be slidable on thesupport surface 37a). - A part of the
second clamping member 36 is accommodated in thesupport portion 32 and a part of thesecond clamping member 36 is exposed in theconcave portion 35 of thesupport portion 32. Thesecond clamping member 36 is movably provided in thesupport portion 32. Thesecond clamping member 36 moves in the facing direction. Thesecond clamping member 36 is biased toward the first clampingmember 34 by a biasing member (not illustrated) such as a spring. That is, the end surfaces of thesecond clamping member 36 and the first clampingmember 34 contact each other by a biasing force of a biasing member in a state in which a force other than the biasing member is not applied to thesecond clamping member 36. - The
second clamping member 36 moves in synchronization with the movement of thesupport portion 32. Thesecond clamping member 36 moves in a direction moving away from the first clampingmember 34 by the movement of thesupport portion 32 from a second position P2 (seeFIG. 6B ) to a first position P1 (seeFIG. 6A ). Specifically, thesecond clamping member 36 is pressed down in a direction opposite to the biasing direction of the biasing member by a cam mechanism (not illustrated) or the like when thesupport portion 32 moves from the second position P2 to the first position P1. Accordingly, a gap (space) is formed between the first clampingmember 34 and thesecond clamping member 36 in the clampingportion 33. Furthermore, the movement of thesecond clamping member 36 may not be synchronized with the movement of thesupport portion 32. - Subsequently, a method of forming an entangled portion using the synthetic yarn splicer 1 (a splicing method) will be described.
- First, as illustrated in
FIG. 6A , the first yarn Y1 and the second yarn Y2 are set on thesynthetic yarn splicer 1. Specifically, the first yarn Y1 and the second yarn Y2 are located in thechamber 14 through theslit 13 of theyarn splicing portion 10 and are disposed on thefirst clamping mechanism 20 and thesecond clamping mechanism 30 located at the first position P1. More specifically, the first yarn Y1 and the second yarn Y2 are disposed between the first clampingmember 24 and thesecond clamping member 26 of thefirst clamping mechanism 20 and are disposed between the first clampingmember 34 and thesecond clamping member 36 of thesecond clamping mechanism 30. Accordingly, the first yarn Y1 and the second yarn Y2 are placed on thefirst contact surface 27b and thesecond contact surface 27c of thefirst clamping mechanism 20 and are placed on thefirst contact surface 37b and thesecond contact surface 37c of thesecond clamping mechanism 30. - When the first yarn Y1 and the second yarn Y2 are set on the
synthetic yarn splicer 1, the operation portion 7 is operated (pressed down). Accordingly, in thesynthetic yarn splicer 1, the driving portion is operated so that thefirst clamping mechanism 20 and thesecond clamping mechanism 30 are operated. - Specifically, the first yarn Y1 and the second yarn Y2 are clamped by the first clamping
member 24 and thesecond clamping member 26 of thefirst clamping mechanism 20. Further, the first yarn Y1 and the second yarn Y2 are clamped by the first clampingmember 34 and thesecond clamping member 36 of thesecond clamping mechanism 30. Then, as illustrated inFIG. 6B , thefirst clamping mechanism 20 and thesecond clamping mechanism 30 move from the first position P1 to the second position P2. Accordingly, as illustrated inFIG. 7 , the first yarn Y1 and the second yarn Y2 are held between the clampingportion 23 and the clampingportion 33 in a loosened state. Further, the first yarn Y1 and the second yarn Y2 are held while contacting at least thesecond contact surface 27c and thesecond contact surface 37c. - Further, when the operation portion 7 is operated, air is injected from the
injection hole 16a to thechamber 14 through theair flow path 16. Accordingly, the first yarn Y1 and the second yarn Y2 located inside thechamber 14 are spliced by the action of air to form an entangled portion. - Subsequently, the operation of the operation portion 7 is cancelled. Accordingly, in the
synthetic yarn splicer 1, the injection of air from theinjection hole 16a to thechamber 14 is stopped and thefirst clamping mechanism 20 and thesecond clamping mechanism 30 are operated. - Specifically, as illustrated in
FIG. 6A , thefirst clamping mechanism 20 and thesecond clamping mechanism 30 move from the second position P2 to the first position P1. In accordance with this operation, thesecond clamping member 26 of thefirst clamping mechanism 20 moves in a direction moving away from the first clampingmember 24 and the clamping of the first yarn Y1 and the second yarn Y2 by the first clampingmember 24 and thesecond clamping member 26 is cancelled. Also similarly to thesecond clamping mechanism 30, thesecond clamping member 36 moves in a direction moving away from the first clampingmember 34 and the clamping of the first yarn Y1 and the second yarn Y2 by the first clampingmember 34 and thesecond clamping member 36 is cancelled. Furthermore, the clamping of the first yarn Y1 and the second yarn Y2 by the first clampingmember 24 and thesecond clamping member 26 may be cancelled after thefirst clamping mechanism 20 moves from the second position P2 to the first position P1. Similarly, the clamping of the first yarn Y1 and the second yarn Y2 by the first clampingmember 34 and thesecond clamping member 36 may be cancelled after thesecond clamping mechanism 30 moves from the second position P2 to the first position P1. With the above-described configuration, the splicing of the first yarn Y1 and the second yarn Y2 by thesynthetic yarn splicer 1 is completed. Accordingly, the first yarn Y1 and the second yarn Y2 become one yarn. - As described above, in the
synthetic yarn splicer 1 according to the embodiment, the first yarn Y1 and the second yarn Y2 held by thefirst clamping mechanism 20 and thesecond clamping mechanism 30 are swayed inside thechamber 14 by using the clamping positions of thefirst clamping mechanism 20 and thesecond clamping mechanism 30 as fixed points to form the entangled portion. When the diameter R2 of theinjection hole 16a is smaller than φ0.8mm, air does not effectively act on the first yarn Y1 and the second yarn Y2 since a force of air injected into thechamber 14 is small and it is difficult to form the entangled portion since the first yarn Y1 and the second yarn Y2 are not appropriately swayed inside thechamber 14. When the diameter R2 of theinjection hole 16a becomes larger than φ1.3 mm, there is concern that air excessively acts on the first yarn Y1 and the second yarn Y2 in the case of the yarn of which the thickness is thin and the number of filaments is small. Accordingly, it is difficult to appropriately form the entangled portion. - In the
synthetic yarn splicer 1 according to the embodiment, the diameter R2 of theinjection hole 16a is equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm. Accordingly, in thesynthetic yarn splicer 1, since air can effectively act on the first yarn Y1 and the second yarn Y2 even in the case of the yarn of which the thickness is thin and the number of filaments is small, the first yarn Y1 and the second yarn Y2 are appropriately swayed inside thechamber 14 and hence the entangled portion can be appropriately formed. Thus, in thesynthetic yarn splicer 1, it is possible to form the entangled portion and to suppress a decrease in tensile elongation of the entangled portion in the case of the yarn of which the thickness is thin and the number of filaments is small. - In the
synthetic yarn splicer 1 according to the embodiment, thechamber 14 has a circular shape when viewed from the penetration direction of thechamber 14. The diameter R1 of thechamber 14 is equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm. When the diameter R1 of thechamber 14 is smaller than φ3.0 mm, the yarn easily contacts the inner peripheral surface of thechamber 14 and it is difficult for the yarns to turn inside thechamber 14 when the first yarn Y1 and the second yarn Y2 are swayed inside thechamber 14. For that reason, there is concern that the entangled portion is not appropriately formed. When the diameter R1 of thechamber 14 is larger than φ4.0 mm, air injected from theinjection hole 16a can be injected into thechamber 14. Accordingly, since air cannot appropriately act on the first yarn Y1 and the second yarn Y2, it is difficult to form the entangled portion. In thesynthetic yarn splicer 1, since the diameter R1 of thechamber 14 is equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm, it is possible to suppress an influence due to the contact with the inner peripheral surface of thechamber 14 and to appropriately apply air to the first yarn Y1 and the second yarn Y2. Thus, in thesynthetic yarn splicer 1, it is possible to more reliably form the entangled portion and to further suppress a decrease in tensile elongation of the entangled portion in the case of the yarn of which the thickness is thin and the number of filaments is small. - The
synthetic yarn splicer 1 according to the embodiment splices the first yarn Y1 and the second yarn Y2 of which the thickness is 55 dtex or less and the number of filaments is 10f or less. It is difficult to form the entangled portion in the yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less. Since thesynthetic yarn splicer 1 has the above-described configuration, it is possible to form the entangled portion also in the yarn of which the thickness is 55 dtex or less and the number of filaments is 10f or less. -
FIGS. 7A and8A are diagrams showing a tensile elongation measurement result of an entangled portion when the entangled portion is formed by changing a combination of the diameter R1 of thechamber 14 and the diameter R2 of theinjection hole 16a in thesynthetic yarn splicer 1 according to the embodiment. The measurement result shown inFIGS. 7A and8A corresponds to an average value obtained from seven measurement results in which the dropout of the yarn of the entangled portion does not occur after a tensile test is performed on the entangled portion. Furthermore, when the dropout of the yarn was found three times, the measurement ended at that time point. For that reason, the measurement result in which the dropout of the yarn occurred three times corresponds to one measurement result or an average value of plural measurement results. - In the measurement of the tensile elongation, TENSORAPID4 (trade name) manufactured by USTER was used.
FIGS. 7A and8A show a result in a case in which the pressure of air injected from theinjection hole 16a is set to 7 kgf/cm2. The yarn is a pre-oriented yarn (POY). In the result shown inFIGS. 7A and8A , "×" indicates a state in which the entangled portion is not formed. - The yarn corresponding to a measurement target in
FIG. 7A is 40dtex-10f. The tensile elongation of the yarn (original yarn) without the entangled portion used for the measurement inFIG. 7A was 64.6 (%) (hereinafter, referred to as the "original yarn elongation A"). The yarn corresponding to the measurement target inFIG. 8A is 20dtex-5f. The tensile elongation of the yarn without the entangled portion used for the measurement inFIG. 8A was 68.6 (%) (hereinafter, referred to as the "original yarn elongation B"). - As shown in
FIGS. 7A and8A , when the diameter R2 of theinjection hole 16a was φ0.8 mm, φ1.0 mm, and φ1.3 mm, it was found that the tensile elongation decrease amount (%) for each of the original yarn elongations A and B was relatively small as compared a case in which the diameter R2 of theinjection hole 16a was φ0.6 mm, φ1.6 mm, and φ1.8 mm. - When the diameter R1 of the
chamber 14 was φ2.5 mm, the entangled portion was not formed regardless of the first yarn Y1 and the second yarn Y2. When the diameter R1 of thechamber 14 was φ3.0 mm, φ3.5 mm, and φ4.0 mm and the diameter R1 was φ4.5 mm, φ5.5 mm, and φ6.0 mm, no big difference was found in the tensile elongation decrease amount (%) for each of the original yarn elongations A and B when the diameter R2 of theinjection hole 16a was φ0.8 mm, φ1.0 mm, and φ1.3 mm. When the diameter R2 of theinjection hole 16a was φ1.0 mm and the diameter R1 of thechamber 14 was φ3.5 mm, it was found that the tensile elongation decrease amount (%) for each of the original yarn elongations A and B was clearly small. -
FIGS. 9A and 9B show a CV value (a value obtained by dividing a standard deviation calculated based on a plurality of measurement results of tensile elongation by the average value of tensile elongation) in a predetermined combination of the diameter R1 of thechamber 14 and the diameter R2 of theinjection hole 16a.FIG. 9A shows a result of a yarn of 40dtex-10f.FIG. 9B shows a result of a yarn of 20dtex-5f. - As shown in
FIG. 9A , the original yarn elongation A is 64.6 (%) and the CV value of the original yarn is 3.4 %. When the diameter R1 of thechamber 14 is φ3.5 mm and the diameter R2 of theinjection hole 16a is φ1.0 mm, the average value of the tensile elongation is 59.7 (%) and the CV value is 4.5 (%). When the diameter R1 of thechamber 14 is φ4.0 mm and the diameter R2 of theinjection hole 16a is φ1.3 mm, the average value of the tensile elongation is 58.2 (%) and the CV value is 5.7 (%). - When the diameter R1 of the
chamber 14 is φ6.0 mm and the diameter R2 of theinjection hole 16a is φ0.8 mm, the average value of the tensile elongation is 58.2 (%) and the CV value is 15.7 (%). When the diameter R1 of thechamber 14 is φ6.0 mm and the diameter R2 of theinjection hole 16a is φ1.3 mm, the average value of the tensile elongation is 58.9 (%) and the CV value is 10.5 (%). In this way, when the diameter R1 of thechamber 14 is φ3.5 mm, φ4.0 mm, and φ6.0 mm, the average value of the tensile elongation is not largely different, but the CV value is largely different. When the diameter R1 of thechamber 14 is φ3.5 mm and φ4.0 mm, the CV value is small in any case as compared with a case in which the diameter R1 of thechamber 14 is φ6.0 mm. That is, a change in tensile elongation decrease amount (%) is small in any case. For that reason, when the diameter R2 of theinjection hole 16a was equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm and the diameter R1 of thechamber 14 was equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm, it was found that the tensile elongation decrease amount (%) with respect to the original yarn elongation was low and a change in tensile elongation decrease amount (%) could be suppressed. Thus, in thesynthetic yarn splicer 1, it was found that the entangled portion could be stably formed in the yarn of 40dtex-10f. - As shown in
FIG. 9B , the original yarn elongation B was 68.6 (%) and the CV value of the original yarn was 2.5%. When the diameter R1 of thechamber 14 is φ3.5 mm and the diameter R2 of theinjection hole 16a is φ1.0 mm, the average value of the tensile elongation is 57.9 (%) and the CV value is 6.8 (%). When the diameter R1 of thechamber 14 is φ4.0 mm and the diameter R2 of theinjection hole 16a is φ1.3 mm, the average value of the tensile elongation is 50.8 (%) and the CV value is 11.0 (%). - When the diameter R1 of the
chamber 14 is φ6.0 mm and the diameter R2 of theinjection hole 16a is φ0.8 mm, the average value of the tensile elongation is 56.9 (%) and the CV value is 11.3 (%). When the diameter R1 of thechamber 14 is φ6.0 mm and the diameter R2 of theinjection hole 16a is φ1.3 mm, the average value of the tensile elongation is 57.7 (%) and the CV value is 13.6 (%). In this way, when the diameter R1 of thechamber 14 is φ3.5 mm, φ4.0 mm, and φ6.0 mm, the average value of the tensile elongation is not largely different, but the CV value is different. When the diameter R1 of thechamber 14 is φ3.5 mm and φ4.0 mm, the CV value is small in any case as compared with a case in which the diameter R1 of thechamber 14 is φ6.0 mm. That is, a change in tensile elongation decrease amount (%) is small in any case. Thus, in thesynthetic yarn splicer 1, it was found that the entangled portion could be stably formed in the yarn of 20dtex-5f. -
FIGS. 7B and8B show the number of times of the dropout of the yarn due to a tensile test. In the tensile test, an entangled portion is formed in the first yarn Y1 and the second yarn Y2 by using thesynthetic yarn splicer 1 and then the entangled portion is pulled from both sides by a predetermined force. When a tensile force is applied to the first yarn Y1 and the second yarn Y2 so that the entangled portion is unraveled and the coupling of the first yarn Y1 and the second yarn Y2 cannot be maintained, the dropout of the yarn occurs. - As shown in
FIG. 7B , the dropout of the yarn did not occur in the yarn of 40dtex-10f. For that reason, even when the diameter R2 of theinjection hole 16a was equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm and the diameter R1 of thechamber 14 was equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm, it was found that the entangled portion can be stably formed in the case of the yarn of 40dtex-10f. - As shown in
FIG. 8B , when the diameter R2 of theinjection hole 16a is φ0.6 mm, φ1.6 mm, and φ1.8 mm, the dropout of the yarn relatively occurs. Even when the diameter R1 of thechamber 14 is φ3.5 mm and the diameter R2 of theinjection hole 16a is φ0.8mm and φ1.3 mm, the dropout of the yarn occurs once. In contrast, the filament changes in an unraveled direction in accordance with a temperature and a humidity. For that reason, the reason why the dropout of the yarn occurs once is because there is an influence of an environment at the time of forming the entangled portion. As described above, when the diameter R2 of theinjection hole 16a was equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm, it was found that the dropout of the yarn was relatively small. - When the diameter R2 of the
injection hole 16a is equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm and the diameter R1 of thechamber 14 is equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm, the number of times of the dropout of the yarn is relatively small and the CV value is small as compared with the other combinations. For that reason, when the diameter R2 of theinjection hole 16a was equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm and the diameter R1 of thechamber 14 was equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm, it was found that the entangled portion could be stably formed in the yarn of 20dtex-5f. When the diameter R2 of theinjection hole 16a was φ1.0 mm and the diameter R1 of thechamber 14 was φ3.5 mm, the dropout of the yarn was not found. For that reason, when the diameter R2 of theinjection hole 16a was φ1.0 mm and the diameter R1 of thechamber 14 was φ3.5 mm, it was found that the entangled portion could be stably formed in the yarn of 20dtex-5f. - Although the embodiment of the invention has been described, the invention is not essentially limited to the above-described embodiment and can be modified into various forms without departing from the scope of the appended claims.
- In the above-described embodiment, a shape illustrated in
FIG. 1 has been described as the shape of themain body 3. However, the shape of themain body 3 is not limited to the shape illustrated inFIG. 1 . - In the above-described embodiment, an example of an embodiment in which the
first clamping members second clamping members first clamping members second clamping members - In the above-described embodiment, an example of an embodiment in which the
support portions shafts support portions - In the above-described embodiment, an example of an embodiment in which the first yarn Y1 and the second yarn Y2 are disposed on the
first clamping mechanism 20 and thesecond clamping mechanism 30 located at the first position P1, thefirst clamping mechanism 20 and thesecond clamping mechanism 30 are moved from the first position P1 to the second position P2, and air is injected from theinjection hole 16a to thechamber 14 to form an entangled portion has been described. However, a method of forming the entangled portion by using thesynthetic yarn splicer 1 is not limited thereto. - For example, the first yarn Y1 and the second yarn Y2 are disposed on the
first clamping mechanism 20 and thesecond clamping mechanism 30 located at the second position P2, thefirst clamping mechanism 20 and thesecond clamping mechanism 30 are moved from the second position P2 to the first position P1, thefirst clamping mechanism 20 and thesecond clamping mechanism 30 are moved from the first position P1 to the second position P2, and air is injected from theinjection hole 16a to thechamber 14 to form an entangled portion. - In the above-described embodiment, an example of an embodiment in which the
synthetic yarn splicer 1 is a hand splicer used while being gripped by an operator has been described. However, the synthetic yarn splicer may be provided in an apparatus or the like. - 1...SYNTHETIC YARN SPLICER, 10...YARN SPLICING PORTION, 14...CHAMBER (PASSEGE), 16a...INJECTION HOLE, 20...FIRST CLAMPING MECHANISM, 30...SECOND CLAMPING MECHANISM, R1...DIAMETER, R2...DIAMETER, Y1...FIRST YARN (ONE YARN), Y2...SECOND YARN (OTHER YARN).
Claims (3)
- A synthetic yarn splicer (1) that splices one yarn (Y1) and the other yarn (Y2) formed of synthetic fibers, comprising:a yarn splicing portion (10) that includes a passage (14) which forms a space through which the one yarn (Y1) and the other yarn (Y2) are insertable and an injection hole (16a) which opens to the passage (14) and injects a fluid; anda pair of clamping mechanisms (20,30) that is provided at a position interposing the passage (14) of the yarn splicing portion (10), the pair of clamping mechanisms (20, 30) including a first clamping mechanism (2) and a second clamping mechanism (30), each of one yarn (Y1) and the other yarn (Y2) inserted through the space are clamped by a first clamping member (24) and a second clamping member (26) of the first clamping mechanism (20) and are clamped by a first clamping member (34) and a second clamping member (36) of the second clamping mechanism (30),wherein the passage (14) has a circular shape when viewed from a penetration direction of the passage (14),wherein the injection hole (16a) has a circular shape,characterized in thata diameter (R1) of the passage (14) is equal to or larger than φ3.0 mm and equal to or smaller than φ4.0 mm, and a diameter (R2) of the injection hole (16a) is equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm.
- The synthetic yarn splicer (1) according to claim 1,
wherein a diameter (R2) of the injection hole (16a) is equal to or larger than φ1.0 mm and equal to or smaller than φ1.3 mm. - Use of the synthetic yarn splicer (1) according to claim 1 or 2 with one yarn (Y1) and another yarn (Y2),
wherein the one yarn (Y1) and the other yarn (Y2) spliced in the synthetic yarn splicer (1) have a thickness of 55 dtex or less and a number of filaments of 10f or less.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018076686 | 2018-04-12 | ||
JP2018076688 | 2018-04-12 | ||
JP2018076685A JP7026560B2 (en) | 2018-04-12 | 2018-04-12 | Splicer for synthetic yarn |
JP2018103798A JP7073194B2 (en) | 2018-05-30 | 2018-05-30 | Splicer for synthetic yarn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3553009A1 EP3553009A1 (en) | 2019-10-16 |
EP3553009B1 true EP3553009B1 (en) | 2022-03-30 |
Family
ID=66102007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19167770.7A Active EP3553009B1 (en) | 2018-04-12 | 2019-04-08 | Synthetic yarn splicer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3553009B1 (en) |
CN (1) | CN110371791B (en) |
TW (1) | TWI787495B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112981627A (en) * | 2021-02-05 | 2021-06-18 | 温岭群豪纱线捻接技术有限公司 | Yarn gripper on yarn splicer and wiring assembly formed by yarn gripper |
JP2024048072A (en) * | 2022-09-27 | 2024-04-08 | Tmtマシナリー株式会社 | Yarn splicing device and yarn splicing method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468919A (en) * | 1982-08-27 | 1984-09-04 | Teijin Seiki Company Limited | Method of and apparatus for joining end portions of multifilament yarns |
JPS60144281A (en) * | 1983-12-27 | 1985-07-30 | Ishikawa Seisakusho:Kk | Nethod of splicing undrawn polyester multi-filament yarns and device therefor |
JPS62136483A (en) * | 1985-12-06 | 1987-06-19 | Teijin Seiki Co Ltd | Combining device for yarn |
JPH05239729A (en) * | 1992-08-26 | 1993-09-17 | Asahi Fiber Glass Co Ltd | Production of roving |
JPH10101267A (en) * | 1996-09-27 | 1998-04-21 | Murata Mach Ltd | Coupling device for filament |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT206161Z2 (en) * | 1985-09-11 | 1987-07-03 | Mesdan Spa | MIXING HEAD FOR JOINING APPARATUS OF TEXTILE YARNS WITH THE USE OF COMPRESSED AIR. |
JPH0819578B2 (en) * | 1987-05-01 | 1996-02-28 | 東レエンジニアリング株式会社 | Binding spinning machine |
DE4032512C1 (en) * | 1990-10-12 | 1992-01-16 | Karl Mayer Textilmaschinenfabrik Gmbh, 6053 Obertshausen, De | |
JP2809071B2 (en) * | 1993-11-05 | 1998-10-08 | 村田機械株式会社 | Yarn end untwisting nozzle and yarn end untwisting method |
JPH1017214A (en) | 1996-06-27 | 1998-01-20 | Murata Mach Ltd | Hand splicer |
US5765352A (en) * | 1997-05-14 | 1998-06-16 | Petree And Stoudt Associates | Yarn splicing device and method |
JP3575367B2 (en) * | 2000-01-18 | 2004-10-13 | 村田機械株式会社 | Piecing device |
JP4592208B2 (en) * | 2001-04-09 | 2010-12-01 | 三菱レイヨン株式会社 | Method for connecting fiber yarn and method for producing carbon fiber |
EP1420091B1 (en) * | 2001-06-12 | 2011-10-05 | Mitsubishi Rayon Co., Ltd. | Production device for carbon fibers and production method therefor |
DE10202781A1 (en) * | 2002-01-25 | 2003-07-31 | Schlafhorst & Co W | Device for the pneumatic connection of yarns |
EP1384696B1 (en) * | 2002-07-24 | 2006-11-15 | Murata Kikai Kabushiki Kaisha | Splicer |
JP2009190853A (en) * | 2008-02-15 | 2009-08-27 | Murata Mach Ltd | Splicer unit and thread winding machine |
JP2014234312A (en) * | 2013-06-05 | 2014-12-15 | 村田機械株式会社 | Yarn splicing device, winding unit, textile machine and yarn splicing method |
JP2016155648A (en) * | 2015-02-24 | 2016-09-01 | 村田機械株式会社 | Piecing unit and yarn winding device |
CN206127526U (en) * | 2016-08-31 | 2017-04-26 | 上海群豪实业有限公司 | Aerial fog afterturn chamber that yarn piecing device was used |
JP7026560B2 (en) * | 2018-04-12 | 2022-02-28 | Tmtマシナリー株式会社 | Splicer for synthetic yarn |
JP2019182662A (en) * | 2018-04-12 | 2019-10-24 | Tmtマシナリー株式会社 | Splicer for synthetic yarn |
JP7202956B2 (en) * | 2018-04-12 | 2023-01-12 | Tmtマシナリー株式会社 | Splicer for synthetic yarn |
-
2019
- 2019-04-08 EP EP19167770.7A patent/EP3553009B1/en active Active
- 2019-04-11 TW TW108112599A patent/TWI787495B/en active
- 2019-04-11 CN CN201910288348.8A patent/CN110371791B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468919A (en) * | 1982-08-27 | 1984-09-04 | Teijin Seiki Company Limited | Method of and apparatus for joining end portions of multifilament yarns |
JPS60144281A (en) * | 1983-12-27 | 1985-07-30 | Ishikawa Seisakusho:Kk | Nethod of splicing undrawn polyester multi-filament yarns and device therefor |
JPS62136483A (en) * | 1985-12-06 | 1987-06-19 | Teijin Seiki Co Ltd | Combining device for yarn |
JPH05239729A (en) * | 1992-08-26 | 1993-09-17 | Asahi Fiber Glass Co Ltd | Production of roving |
JPH10101267A (en) * | 1996-09-27 | 1998-04-21 | Murata Mach Ltd | Coupling device for filament |
Also Published As
Publication number | Publication date |
---|---|
TW201943633A (en) | 2019-11-16 |
TWI787495B (en) | 2022-12-21 |
EP3553009A1 (en) | 2019-10-16 |
CN110371791B (en) | 2022-08-16 |
CN110371791A (en) | 2019-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3553007B1 (en) | Synthetic yarn splicer | |
EP3553009B1 (en) | Synthetic yarn splicer | |
EP1671910B1 (en) | Yarn splicer | |
EP3553008B1 (en) | Synthetic yarn splicer | |
EP3553006B1 (en) | Synthetic yarn splicer | |
CN106698096B (en) | Yarn joining mechanism, yarn winding device, and yarn joining method | |
TWI829982B (en) | Yarn handling device | |
JP7073194B2 (en) | Splicer for synthetic yarn | |
JPWO2008114872A1 (en) | Knitting yarn switching method and knitting yarn switching device | |
US5140722A (en) | Sliver piecing device having fiber entangling needles and air jets | |
JPH01222421A (en) | Winding device and winding method using same | |
JP2019064804A (en) | Yarn splicing nozzle, yarn splicing device, yarn winding device and yarn winding method | |
JPH11106147A (en) | Multisplicer | |
JP2006291403A (en) | Clamp cutter device for yarn | |
JPH06321424A (en) | Yarn winding method and yarn winding machine | |
CN117775891A (en) | Joint device and joint method | |
JP2006009169A (en) | Clamping cutter apparatus for elastic yarn | |
JPS602724A (en) | Ending device of bind spinning frame | |
JP2005314099A (en) | Yarn splicing device exchange system | |
JPS602725A (en) | Ending device of bind spinning frame |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200102 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20201023 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20211123 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1479034 Country of ref document: AT Kind code of ref document: T Effective date: 20220415 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602019012937 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220630 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220630 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20220330 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1479034 Country of ref document: AT Kind code of ref document: T Effective date: 20220330 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220701 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220801 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220730 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602019012937 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20220430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220408 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220430 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220430 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220430 |
|
26N | No opposition filed |
Effective date: 20230103 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220408 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220530 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230525 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220330 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230425 Year of fee payment: 5 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20230408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20190408 |