WO2013111865A1 - 放射状羽根及びその製造方法 - Google Patents
放射状羽根及びその製造方法 Download PDFInfo
- Publication number
- WO2013111865A1 WO2013111865A1 PCT/JP2013/051615 JP2013051615W WO2013111865A1 WO 2013111865 A1 WO2013111865 A1 WO 2013111865A1 JP 2013051615 W JP2013051615 W JP 2013051615W WO 2013111865 A1 WO2013111865 A1 WO 2013111865A1
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- WIPO (PCT)
- Prior art keywords
- welding
- annular
- radial blade
- radial
- yarn bundle
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/045—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector for radial flow machines or engines
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/001—Cylindrical or annular brush bodies
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
- A46B3/04—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by mouldable materials, e.g. metals, cellulose derivatives, plastics
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/04—Machines for inserting or fixing bristles in bodies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
Definitions
- the present invention relates to a disk-shaped radial blade used for a cylindrical brush used as a brush head of a 360-degree toothbrush, a cleaning brush, an industrial brush, and the like, and a manufacturing method thereof.
- a 360 degree toothbrush as described in Patent Document 1 As a kind of toothbrush, a 360 degree toothbrush as described in Patent Document 1 is known.
- This toothbrush has a cylindrical brush head at the tip of the brush handle.
- the cylindrical brush head is configured by stacking disk-shaped radial blades in the central axis direction.
- a conventional structure of a disk-type radial blade is shown in FIGS.
- the disk-shaped radial blade 1 is formed by a disk-shaped annular core portion 2 through which the tip of the brush handle penetrates and a large number of thread materials 21 extending from the entire circumferential direction of the annular core portion 2 to the outer peripheral side.
- the radial blade portion 3 is formed.
- the annular core portion 2 is a welded portion for joining a large number of yarn materials 21, and the inside thereof is a through hole 4 for inserting a handle.
- the annular protrusions 5 are integrally formed on both surfaces of the annular core portion 2 to form a so-called boss portion. .
- the radial blade manufacturing apparatus manufactures the radial blade 1 from a yarn bundle 20 formed by bundling nylon resin-based yarn materials 21.
- the manufacturing apparatus includes a horizontal processing bed 30 and a columnar welding head 40 provided on the bed.
- the processing bed 30 is provided with a vertical through hole 31 through which the yarn bundle 20 passes.
- the columnar welding head 40 is vertically arranged concentrically on the through hole 31 of the processing bed 30 and is driven up and down in the direction of the central axis by a driving mechanism (not shown).
- the welding head 40 is a welding horn that performs welding by ultrasonic vibration, and is driven to oscillate by a vibrator (not shown).
- a circular tip surface of the welding head 40 is a welding surface 41.
- the yarn bundle 20 protrudes through the through hole 31 of the processing bed 30 by a predetermined amount on the processing bed 30 with the welding head 40 on the processing bed 30 in the upper retracted position. To do.
- the yarn bundle 20 is pushed up by a push-up chuck (not shown) provided under the processing bed 30.
- the protruding amount of the yarn bundle 20 is set according to the radius of the radial blade 1 to be manufactured.
- the welding head 40 descends while vibrating from the upper retracted position, so that the yarn material 21 forming the protruding portion is caused by the tip of the welding head 40. It is spread evenly around. As the welding head 40 continues to descend further, finally, the periphery of the central portion of the yarn material 21 that is radially opened is pressed against the periphery of the through hole 31 on the surface of the processing bed 30 by the welding surface 41 of the welding head 40. .
- the yarn material 21 at the protruding portion of the yarn bundle 20 bends at right angles to the periphery and opens radially, and the periphery of the central portion of the radially opened yarn material 21 is welded by the welding surface 41 at the tip of the welding head 40.
- the central portion of the yarn material 21 that is radially opened also progresses welding due to heat transfer from the periphery of the central portion, and finally becomes the weld solidified portion 25.
- the annular welded portion 22 is separated from the inner yarn bundle portion.
- the completed radial blade 1 is separated from the yarn bundle 20, and the annular welded portion 22 becomes the disk-shaped annular core portion 2 in the radial blade 1.
- the welded and solidified portion 25 formed at the tip of the yarn bundle 20 is cut and removed in preparation for the production of the next radial blade 1 after separation of the completed radial blade 1.
- the inner diameter of the through hole 4 in the radial blade 1 basically matches the outer diameter of the yarn bundle 20. Although it is possible to make the inner diameter of the through-hole 4 larger than this, in that case, it is necessary to remove the annular welded portion 22 (annular core portion 2) more greatly, which is accompanied by separation of the welded portion of the yarn bundle 20. Cut loss further increases.
- the annular core portion 2 of the manufactured radial blade 1 is thin and hard (because there is no elasticity) because the thread material 21 is formed by ultrasonic welding, the inner diameter of the core portion (inner through-hole diameter) ) Is smaller than the outer diameter of the shaft portion of the handle, not only is the operation difficult when fitting the radial blade 1 to the shaft portion, but the annular core portion 2 is easily broken.
- the inner diameter of the through-hole 4 (handle insertion hole) formed inside the annular core portion 2 is large, the radial blades 1 are not fixed to the shaft portion, causing idling during use.
- An object of the present invention is to provide a radial blade excellent in economy that can freely set the inner diameter of the through-hole, and can reduce the cut loss of the yarn bundle as much as possible regardless of the size of the inner diameter, and a manufacturing method thereof. It is to provide.
- Another object of the present invention is to provide a more economical and highly functional radial blade that eliminates other factors that increase the manufacturing cost, together with the cut loss, and a method for manufacturing the same.
- the present inventors have devised a structure and manufacturing method of a radial blade based on a completely different idea from the conventional one, and completed the present invention.
- the amount of protrusion of the yarn bundle is determined for every minimum unit number of double radial blades, and the yarn bundle is radially started from the base end side of the protrusion. Then, the base end portion was welded, and the blades were separated from the yarn bundle at the welded portion. As a result, a cut loss accompanying the separation of the welded portion of the yarn bundle inevitably occurred for each minimum unit number.
- a double structure (two-layer overlap) is appropriate as the yarn material density of the blade portion in the radial blade, and is the middle portion in the longitudinal direction of the yarn bundle having a length of two sheets.
- Is a folded portion and the yarn bundles at both ends of the folded portion are opened and overlapped radially leaving a space in the central portion, and the annular folded portion formed around the central space, particularly around the central space.
- a production method has been devised in which the outside is welded in a ring shape. According to this manufacturing method, a large number of yarn materials folded in two are arranged radially around the central space.
- a large number of three-dimensionally overlapping yarn materials at the inner peripheral portion are dispersed in the circumferential direction and become planar as they move toward the outer peripheral side. Then, a large number of thread materials that are three-dimensionally overlapped at the inner peripheral portion are integrated by being welded in an annular shape, thereby forming a radial blade having a double structure (two layers).
- a double-structured (double stack) radial blade having a high yarn material density from one continuous yarn bundle is Manufactured without cutting loss associated with welded part separation. That is, by separating the inner peripheral portion of the yarn bundle having a length corresponding to two sheets in the longitudinal direction as an annular folded portion, it is not necessary to separate the formed radial blade from the yarn bundle. There is no cut loss associated with separation of the welded part of the bundle. Further, the size of the space in the center can be arbitrarily set, and the size thereof does not affect the cut loss.
- the welded part was initially completely welded to the inner periphery of the folded part, and as a result, the annular welded part was in contact with the central part space.
- the annular folded portion has an arch-shaped cross-sectional shape that is convex toward the center side. It has been found that the boss portion is thick and elastic, and also serves as a functionally excellent slide portion and grip portion.
- the annular folded portion left inside the annular welded portion is an unwelded portion or an incompletely welded portion, and is formed by the yarn material forming the yarn bundle being rounded by elasticity.
- the annular folded portion is thicker than the outer annular welded portion, and more elastic than the annular welded portion.
- the thread material faces the central axis direction on the inner peripheral surface of the annular folded portion.
- the yarn material density in the blade portion of the radial blade and the flocking density in the central axis direction in the brush head are optimized and manufactured.
- the cost increase factor is effectively removed.
- radial blades of various sizes and shapes can be manufactured by selecting the length of the yarn bundle and the position of the folded portion, and further selecting the inner diameter of the space at the center.
- the radial blades of the present invention have been made based on such knowledge, and a large number of yarn materials extend from the entire circumferential direction of the disk-shaped annular core portion provided with a through hole in the central portion to the outer peripheral side.
- An annular fold formed around the space of the center portion characterized in that the core portion is formed by welding around the space of the center portion in a ring shape.
- a configuration in which the core portion is formed by welding the outer side of the portion in a ring shape is particularly preferable.
- the central space becomes a through hole, and a radial blade portion is formed around the through hole via an annular core portion.
- the cross section of the radial blade has an arch shape around the through hole.
- An annular folded portion is formed, and a radial blade portion is formed on the outer side via an annular core portion.
- the outer side of the annular folded portion is welded, it is an unwelded portion or an incompletely welded portion. Further, the yarn material forming the yarn bundle is not completely bent, and is curved in an arch shape due to the elasticity of the yarn material. For these reasons, the annular folded portion becomes a thick boss portion. In addition, since it has greater elasticity than the annular core portion that is the welded portion, it also becomes a grip portion that fixes the blade when the radial blade is fitted on the shaft. Furthermore, it becomes an effective slide part due to the direction of the thread material on the inner surface of the annular folded part. Furthermore, it becomes an effective reinforcement part with respect to an inner annular core part. Furthermore, when the annular core portion is welded, welding is performed from both sides, and the pressure is easily concentrated, so that material melting proceeds and the mechanical strength of the annular core portion itself is high.
- the most important configuration of the radial blade of the present invention is that the blade is folded at the middle portion of the yarn bundle to form the blade on both sides, and accordingly, the annular folded portion around the through hole in the blade center portion.
- a thick annular folded portion including an unwelded portion or an incompletely welded portion is formed facing the through hole.
- the thickness and hardness of the annular folded portion can be adjusted by changing the welding position, the thickness and number of yarn materials, and the like.
- the radial blade manufacturing method of the present invention forms a radial blade portion by extending a large number of yarn materials from the entire circumferential direction of the disk-shaped annular core portion with a through hole in the center portion to the outer peripheral side.
- the disk-shaped radial blade manufacturing method according to the present invention is a method in which a longitudinal intermediate portion of one continuous yarn bundle is used as a folded portion, and the yarn bundle on one end side of the folded portion is spaced from the folded portion as a starting point and in the center.
- a second welding step for annular welding around the space of De is, it is possible to produce efficiently radial vane without wings separation at the welded portion.
- the yarn bundles at both ends radially opened to the periphery are welded in an annular shape outside the annular folded portion formed around the center space.
- the above-mentioned high-functional radial blades are manufactured without the step of separating the blades at the welded portion of the yarn bundle, leaving a thick and elastic boss portion, a slide portion, and a grip portion around the through hole. It becomes possible.
- each step is normally performed in the order of the first opening step, the first welding step, the second opening step, and the second welding step, but the first opening step and the second opening step.
- You may implement a process simultaneously and may implement a 1st welding process and a 2nd welding process simultaneously. That is, one yarn bundle may be processed stepwise on both ends of the folded portion, but may be processed symmetrically at the same time.
- the rod-shaped object is preferably a separate object independent of the welding horn in order to prevent the rod-shaped object from resonating with the welding horn.
- the rod-like object resonates with the welding horn, the folded portion is welded from the inside, and it becomes difficult to leave a thick and elastic boss, slide portion, and annular folded portion around the through hole of the radial blade. .
- the rod-like object is attached to a welding horn used in the second welding process, it is preferable that the rod-like object is a separate object independent of the welding horn.
- the rod-like object When a rod-like object is protruded from the front end surface of the welding horn used in the first welding process, the rod-like object maintains the space secured in the center in the first opening process in the second opening process and the second welding process. Is available. In that case, since both horns are brought close to each other, it is necessary to form an escape portion into which the rod-like object is inserted on the front end surface of the welding horn used in the second welding step.
- This relief portion is also effective when the first opening step and the second opening step are performed simultaneously, and the first welding step and the second welding step are performed simultaneously. This is because both horns are brought close to each other in this case.
- the radial blade of the present invention has a structure in which the yarn material is radially folded and welded around the through hole in the center portion, the yarn material density in the blade portion can be made the same as that of the double radial blade, and the yarn bundle It can be manufactured without causing a cut loss due to blade separation at the welded portion, and the manufacturing cost can be reduced. Further, the size of the through hole can be arbitrarily set, and the setting does not affect the cut loss and consequently the manufacturing cost.
- the yarn material density in the blade portion can be made the same as that of the two radial blades.
- a thick boss portion can be easily formed, and a wide range of adjustment of the flock density in the axial direction when superposed in the central axis direction to form a brush head is enabled.
- the radial blade is firmly fixed to the shaft into which the radial blade is fitted, and the idling can be prevented.
- the tolerance for the inner diameter accuracy of the through hole is increased, and it contributes to the reinforcement of the inner annular core portion, so that the frequency of occurrence of defective products can be reduced, and also in this respect, the manufacturing cost is reduced. Enable.
- wing manufacturing method of this invention can manufacture such a radial blade
- FIG. 1 is a plan view (a), an elevation view (b), and a longitudinal sectional view (c) showing the structure of an example of a radial blade of the present invention.
- the longitudinal sectional view (c) is a cross-sectional arrow along line AA in FIG. It corresponds to the figure.
- FIG. 4 is a longitudinal sectional view showing the structure of another example of the radial blade of the present invention, and corresponds to a cross-sectional view taken along line AA in FIG.
- FIG. 7 is a longitudinal sectional view showing the structure of still another example of the radial blade of the present invention, and corresponds to a cross-sectional view taken along the line AA in FIG.
- the radial blade of the present embodiment is used for a cylindrical brush head mounted on the handle tip of a 360 degree toothbrush. That is, the brush head in the 360-degree toothbrush is configured by overlapping a predetermined number of disk-shaped radial blades formed by processing a nylon resin-based thread material used in the toothbrush in the central axis direction.
- the radial blade of this embodiment is used for a disk-type radial blade constituting the brush head.
- a radial blade 10 shown in FIGS. 1A to 1C is a double-structure blade in which two radial blades 10a and 10b are integrated and overlapped at a welding portion, and a bundle of a large number of yarn materials ( Thread bundle).
- a circular through hole 11 through which the tip shaft portion of the brush handle passes is provided at the center of the radial blade 10.
- an annular folded portion 12 that protrudes in a dome shape on both sides and projects in an arch shape on the inner surface side is formed in contact with the through hole 11, and on the outer side of the annular folded portion 12,
- a high-strength annular core portion 13 made of a thin annular plate formed by welding the thread material 21 is provided.
- a large number of yarn materials 21 extend radially from the annular core portion 13 at a uniform density in the circumferential direction to form an annular blade portion 14.
- the thread material 21 constituting the blade part 14 includes the same number of the radial blades 10a having one long bristle and the other radial blade 10b having the short bristle.
- the number of the thread materials 21 in the radial blade 10 is the same in the circumferential direction.
- the thread material 21 is three-dimensionally dense in the inner peripheral portion, particularly in the annular folded portion 12 inside the annular core portion 13, and becomes flat in the blade portion 14 outside the annular core portion 13. Disperses in the circumferential direction as it goes to.
- the manufacturing apparatus shown in FIG. 4 manufactures the radial blades 10.
- the first welding unit 50 and the second welding unit 60 that are provided side by side, the clamper unit 70 that is shared between both, and the horizontal movement thereof.
- a clamper conveyance unit 71 is provided between the two.
- the clamper unit 70 has a split open / close type clamper 72, and the yarn bundle 20 which is a manufacturing material of the radial blade is restrained and released by combining and separating the clamper unit.
- the clamper transport unit 71 transports the material from the first welding unit 50 to the second welding unit 60 by the horizontal movement of the clamper unit 70.
- the first welding unit 50 forms the first radial blade 10a in the radial blade 10 having a double structure.
- the first welding unit 50 includes a yarn feeding unit 51, a first processing base 52, and a first welding horn 53 that are concentrically arranged above and below the clamper conveyance unit 71.
- a yarn feeding unit 51 disposed above the clamper conveyance unit 71 feeds a yarn bundle 20 formed by bundling nylon resin-based yarn materials 21 downward by a predetermined amount.
- the first processing base 52 disposed between the yarn feeding unit 51 and the clamper conveyance unit 71 has a through hole 52a through which the yarn bundle 20 fed downward by the yarn feeding unit 51 passes from top to bottom. .
- the first welding horn 53 disposed below the clamper conveyance unit 71 is a cylindrical upward ultrasonic vibrator, and is driven up and down by a drive device (not shown).
- the circular upper end surface of the first welding horn 53 is a welding surface 53a, and more specifically, the annular portion excluding the central rod-like convex portion 53b and the outer annular concave portion 53c is the welding surface 53a. That is, a thin round bar-like bar-like convex part 53b is provided at the center of the circular upper end surface of the first welding horn 53, and an annular concave part 53c is provided so as to surround the bar-like convex part 53b. An annular upper end surface outside the annular recess 53c is a welding surface 53a.
- the rod-shaped convex portion 53b is for forming the through-hole 11 of the radial blade 10, and has an outer diameter sufficiently smaller than the thickness of the yarn bundle 20 (the inner diameter of the through-hole 52a in the first processing base 52). A circular space is formed at the center of the radially open yarn bundle 20. And this rod-shaped convex part 53b is comprised by the front-end
- the annular recess 53c is an escape portion for forming the annular folded portion 12 of the radial blade 10, particularly the annular folded portion 12 on the first radial blade 10 a side.
- the second welding unit 60 forms the second radial blade 10b in the radial blade 10 having a double structure.
- the second welding unit 60 includes a second welding horn 61, a second processing base 62, and a vertical guide pin 63 used for releasing the yarn bundle, which are arranged concentrically above and below the clamper transport unit 71.
- the second welding horn 61 disposed above the clamper conveyance unit 71 is a cylindrical ultrasonic transducer facing downward, and is driven up and down by a driving device (not shown).
- the circular lower end surface of the second welding horn 61 is a welding surface 61a, and more specifically, the annular lower end surface excluding the elongated circular recess 61b at the center and the shallow annular recess 61c outside thereof is the welding surface 61a.
- the circular recess 61b is a clearance hole that receives the rising guide pin 63, and is a guide hole.
- the annular recess 61c is an escape portion for forming the annular turn-up portion 12 of the radial blade 10, particularly the annular turn-up portion 12 on the second radial blade 10b side.
- the second processing base 62 disposed below the clamper transport unit 71 has a through hole 62a through which the guide pin 63 is inserted.
- An annular recess 62b is provided on the upper surface, which is the processing surface of the second processing base 62, so as to surround the through hole 62a.
- the annular recess 62b is an escape portion that accommodates the annular folded portion 12 of the radial blade 10, particularly the annular folded portion 12 formed on the first radial blade 10b side.
- the guide pin 63 is driven up and down in the vertical direction by the driving device 63a, and is driven upward from the upper surface of the second processing base 62, whereby the yarn bundle 20 is formed in the process of forming the second radial blade 10b.
- the second welding horn 61 that is inserted into the central part and secures a space in the central part of the blade and descends is guided.
- the yarn feed unit 51 causes the yarn bundle 20 to pass through the through hole 52 a of the first processing pedestal 52 to the bottom of the first processing pedestal 52. Sent out.
- the length of the yarn bundle 20 sent out under the first processing base 52 is an amount necessary for manufacturing the first radial blade 10a.
- the first welding horn 53 starts to rise from the lower retracted position while being ultrasonically oscillated, and is sent below the first processing base 52.
- the thread material 21 of the thread bundle 20 is opened to the periphery.
- the thread material 21 further opens to the periphery, and finally, as shown in FIG.
- the annular welded surface 53a is pressed around the through hole 52a on the lower surface of the first processing base 52.
- the yarn material 21 in the feeding portion of the yarn bundle 20 is completely opened to the periphery and becomes radial by pressing with the welding surface 53a of the first welding horn 53.
- the first welding horn 53 is ultrasonically vibrated, the vicinity of the center portion of the radial thread material 21 pressed by the welding surface 53 a of the first welding horn 53, that is, the annular welding of the first welding head 53.
- An annular portion sandwiched between the surface 53a and the surface of the first processing base 52 around the through hole 52a is welded to form an annular welded portion 22a.
- the rod-like convex portion 53b provided at the center portion of the upper end surface of the first welding horn 53 is inserted into the center portion of the yarn bundle 20 at the final stage of the opening process of the yarn bundle 20 and before welding starts, Welding is performed with a circular space secured in the center of the yarn bundle 20. Since the rod-shaped convex portion 53b is a separate member independent of the first welding horn 53 and is prevented from resonating with the first welding horn 53, the portion of the thread material 21 that is radially open to the periphery is in contact with the space. Prevent welding.
- annular recess 53c prevents the inner edge (in the vicinity of the space) of the yarn material 21 that is radially open to the periphery from being welded, and contributes to the formation of the annular folded portion 12.
- the formation of the first radial blade 10a is completed.
- the first welding horn 53 is lowered as shown in FIG.
- the bundle 20 is sent out below the first processing base 52.
- the length of the yarn bundle 20 sent out under the first processing base 52 is an amount necessary for manufacturing the second radial blade 10b.
- the clamper unit 70 moves from the first welding unit 50 to the second welding unit 60 while the clamper 72 restrains the yarn bundle 20. Accordingly, the first radial blade 10a is conveyed from the first welding unit 50 to the second welding unit 60 together with the yarn bundle 20 for forming the second radial blade 10b.
- the first radial blade 10a and the yarn bundle 20 extending upward from the center thereof are connected to the second welding horn 61 and the second processing base 62. Fixed between. Then, as shown in FIG. 6 (b), the guide pin 63 starts to rise, passes through the through hole 62a of the second machining base 62, and is formed at the center of the first radial blade 10a thereon.
- the clamper 72 opens to both sides to release the yarn bundle 20, and the second welding horn 61 starts to descend from the upper retracted position.
- the guide pin 63 starts to descend.
- the first radial blade 10 a comes into contact with the upper surface of the second processing base 62, and in this state, the yarn material 21 existing around the guide pin 63 is adhered to the welding surface 61 a of the second welding horn 61. When pushed down, it opens to the surroundings.
- the annular recessed portion 61c formed around the circular recessed portion 61b of the second welding horn 61 prevents the inner edge portion (near the space) of the yarn material 21 opened to the periphery from being welded. This contributes to the formation of the annular folded portion 12 on the sheet side.
- the annular recess 62 b formed around the through hole 62 a of the second processing base 62 prevents deformation of the annular folded portion 12 formed on the first sheet side in the first welding unit 50.
- the guide pin 63 inserted into the circular recess 61b of the second welding horn 61 is a rod-like member independent of the second welding horn 61, there is no resonance with the second welding horn 61, and the annular folded portion 12 is returned. There is no danger of welding the inner surface.
- the two-layered radial blade 10 integrated by the annular welded portions 22 a and 22 b is formed on the second processing base 62.
- the integrated annular welded portions 22 a and 22 b become the annular core portion 13 of the completed radial blade 10.
- the manufacturing apparatus shown in FIG. 7 is another apparatus for manufacturing the radial blade 10, and has a first welding horn 80 and a second welding horn 90 arranged concentrically above and below the clamper transport unit 71. is doing.
- the feature of this manufacturing apparatus is that the first radial blade 10a and the second radial blade 10b are formed in the double-structured radial blade 10 at the same position, and the double-structured radial blade 10b is formed.
- the first welding horn 80 forms the first radial blade 10a
- the second welding horn 90 forms the second radial blade 10b.
- the clamper unit 70 has a split-type clamper 73, which separates and unites the clamper unit 70 to restrain and release the yarn bundle 20, which is a radial blade manufacturing material.
- the clamper 73 also serves as a processing pedestal, and is therefore manufactured with high strength.
- the clamper transport unit 71 transports the material from the material receiving position on the left side of the drawing to a processing position between the first welding horn 80 and the second welding horn 90.
- positioned under the clamper conveyance unit 71 is a cylindrical-shaped upward ultrasonic transducer
- the circular upper end surface of the first welding horn 80 is a welding surface 81, and more specifically, the annular portion excluding the central rod-like convex portion 82 and the outer annular concave portion 83 is the welding surface 81.
- the rod-shaped convex portion 82 is for forming the through-hole 11 of the radial blade 10, has an outer diameter smaller than the thickness of the yarn bundle 20, and the center of the yarn bundle 20 in the process of forming the second radial blade 10b.
- the second welding horn 61 that is lowered is inserted while forming a circular space in this portion and descending.
- the rod-like convex portion 82 is provided at the center of the first welding horn 80 in order to prevent resonance with the first welding horn 80, similarly to the first welding horn 50 of the manufacturing apparatus shown in FIG. It is comprised by the front-end
- the annular recess 83 is also an escape portion for forming the annular folded portion 12 of the radial blade 10, particularly the annular folded portion 12 on the first sheet side.
- the second welding horn 90 disposed above the clamper conveyance unit 71 is a cylindrical ultrasonic transducer facing downward, and is driven up and down by a driving device (not shown).
- the circular lower end surface of the second welding horn 90 is a welding surface 91, and more specifically, the annular portion excluding the elongated circular recess 92 at the center and the shallow annular recess 93 outside thereof is the welding surface 91.
- the circular recess 61b is a clearance hole that accommodates the rising rod-shaped protrusion 82, and the annular recess 61c is an escape portion for forming the annular folding portion 12 of the radial blade 10, particularly the annular folding portion 12 on the second sheet side. is there.
- the clamper unit 70 is positioned on the left side portion of the clamper conveyance unit 71, and the yarn bundle 20 fed from a yarn feeding unit (not shown) disposed above the clamper unit 70 is restrained by the clamper 73 in the clamper unit 70. To do. Next, the yarn bundle 20 is cut by a cutter unit (not shown) provided under the yarn feeding unit.
- the cutting length (feeding length) of the yarn bundle 20 is a length necessary for manufacturing the radial blade 10 having a double structure, and more specifically, from the lower surface (processing surface) of the clamper 73 that also serves as a processing base. Is the amount necessary for the first radial blade 10a, and the yarn bundle length above the lower surface (processed surface) of the clamper 73 is the amount necessary for the second radial blade 10b. .
- the clamper unit 70 is placed between the first welding horn 80 and the second welding horn 90 while the clamper 73 restrains the yarn bundle 20.
- the yarn bundle 20 is conveyed during this time.
- the first welding horn 80 starts to rise from the lower retracted position while being ultrasonically vibrated, and opens the yarn material 21 of the yarn bundle 20 protruding below the clamper 73 to the periphery.
- the thread material 21 further opens to the surroundings, and finally, the thread material 21 that opens to the surroundings, as shown in FIG.
- the weld surface 81 is pressed around the chuck hole on the lower surface of the clamper 73.
- the yarn material 21 in the downward projecting portion of the yarn bundle 20 is completely opened radially and becomes radial.
- the first welding horn 80 vibrates ultrasonically, the vicinity of the center portion of the radial thread material 21 pressed by the welding surface 81 of the first welding horn 80 is welded in an annular shape, and the annular welded portion 22a. [See FIG. 8 (d)].
- the rod-shaped convex portion 82 provided at the center portion of the upper end surface of the first welding horn 80 is inserted into the center portion of the yarn bundle 20 at the final stage of the opening process of the yarn bundle 20 and before the welding starts, By passing through the central portion of the yarn bundle 20, welding is performed in a state where a circular space is secured in the central portion. Since the rod-shaped convex portion 82 is also a separate member independent of the first welding horn 80 and is prevented from resonating with the first welding horn 80, the portion of the thread material 21 that is radially open to the periphery is in contact with the space. Prevent welding.
- annular recess 83 prevents the inner edge portion (near the space) of the thread material 21 that opens to the periphery from being welded, thereby contributing to the formation of the annular folded portion 12.
- the formation of the first radial blade 10a is completed.
- the clamper 73 is opened as shown in FIG. Then, as shown in FIG. 8E, the second welding horn 90 starts to descend from the upper retracted position. As a result, the thread material 21 existing around the rod-shaped convex portion 82 that also serves as the guide pin of the first welding horn 80 opens to the periphery. Further, the rod-like convex portion 82 of the first welding horn 80 is inserted into the circular concave portion 92 that is the escape portion of the second welding horn 90. When the second welding horn 90 continues to descend further, as shown in FIG. 8 (f), the thread material 21 opens radially, and the welding surface of the first welding horn 80 is formed at the welding surface 91 of the second welding horn 90. 81 is pressed.
- the annular welded portion 22b (see FIG. 8G) is also formed for the second radial blade 10b.
- the annular welding surface 81 of the first welding horn 80 also serves as a lower processing base.
- the rod-like convex portion 82 of the first welding horn 80 inserted into the circular concave portion 92 that is the escape portion of the second welding horn 90 is a separate member independent of the second welding horn 90, the rod-like convex portion 82 radiates to the periphery. This prevents the inner surface of the opened thread material 21 from being welded.
- An annular recess 93 formed around the circular recess 92 of the second welding horn 90 prevents the inner edge (near the space) of the yarn material 21 that is radially open to the periphery from being welded, and two sheets. This contributes to the formation of the annular folded portion 12 on the radial blade 10b side of the eye.
- An annular recess 93 formed around the rod-like projection 82 of the first welding horn 80 prevents deformation of the annular folded portion 12 formed on the first radial blade 10a side.
- the two overlapping radial blades 10 integrated by the annular welded portions 22a and 22b are formed at the same position, that is, between the first welded horn 80 and the second welded horn 90.
- the integrated annular welded portions 22a and 22b become the annular core portion 13 of the completed radial blade 10, and the annular folded portion 12 is formed inside thereof.
- the clamper 73 and the second welding horn 90 also serve as a processing base, and a dedicated processing base is not required, and the rod-shaped convex portion 82 of the first welding horn 80 also serves as a guide pin.
- the manufacturing apparatus shown in FIG. 9 is basically the same as the manufacturing apparatus shown in FIG. The main difference is that the clamper 74 in the clamper unit 70 does not serve as a processing base in the same manner as the manufacturing apparatus shown in FIG. 4, and instead, the clamper 74 also serves as a side welding unit.
- the welding surface 91 of the 2nd welding horn 90 with the welding surface 81 of the horn 80 is three points of the point which serves also as a processing base.
- the difference in timing is that the first welding horn 80 disposed under the clamper transport unit 71 and the clamper transport unit 71 are disposed as shown in FIGS. 10 (a) to 10 (f).
- the second welding horn 90 moves up and down at the same time.
- the clamper unit 70 is positioned on the left side portion of the clamper transport unit 71, and the yarn bundle 20 fed from a yarn feed unit (not shown) disposed above the clamper unit 70 is placed in the clamper unit 70. Restrained by the clamper 72.
- the yarn bundle 20 is cut by a cutter unit (not shown) provided under the yarn feeding unit.
- the cutting length (feeding length) of the yarn bundle 20 is a length necessary for manufacturing the radial blade 10 having a double structure. More specifically, the yarn bundle length below the clamp position center by the clamper 74 is 1.
- the amount necessary for the second radial blade 10a is the amount necessary for the second radial blade 10b.
- the clamper unit 70 is located between the first welding horn 80 and the second welding horn 90 while the clamper 74 restrains the yarn bundle 20.
- the yarn bundle 20 is conveyed during this time.
- the first welding horn 80 starts to rise from the lower retracted position while being ultrasonically vibrated, and at the same time, the second welding horn 90 is moved from the upper retracted position while being ultrasonically vibrated. Start descent.
- the yarn bundle 20 protruding above and below the clamper 74 is simultaneously opened to the periphery.
- the restraint portion of the yarn bundle 20 is temporarily welded by the clamper 74 that also serves as a side welding unit. .
- the clamper 74 is retracted to both sides, and the first welding horn 80 and the second welding horn 90 are further raised and lowered, and finally FIG. 10 (e).
- the portion below and temporarily above the temporary welding portion 23 of the yarn bundle 20 opens radially to the periphery, and the periphery of the center portion is the welding surface 81 of the first welding horn 80. And the welding surface 91 of the second welding horn 90.
- a through hole is formed in the center portion of the yarn bundle 20 opened to the periphery by inserting the rod-like convex portion 82 of the first welding horn 80.
- the radial blade 10 having a double structure is manufactured.
- the advantage of this manufacturing method is that the manufacturing speed is high because the lower radial blade 10a and the upper radial blade 10b are formed simultaneously. Since the rod-like convex portion 83 of the first welding horn 80 is a separate member independent of the first welding horn 80 and the second welding horn 90, the welding of the inner peripheral surface of the annular folded portion 12 is prevented. It is a manufacturing method by the manufacturing apparatus shown in FIG. 7 that the annular recessed portion 83 of the first welding horn 80 and the annular recessed portion 93 of the second welding horn 90 contribute to the formation of the annular folded portion 12 in forming the annular folded portion 12. Is the same as
- the outer diameter of the radial blade 10 and the radial blade 10 are configured by changing the cutting amount (feeding amount) of the yarn bundle 20 and the clamp position of the yarn bundle 20 by the clampers 72, 73, 74.
- the outer diameters of the radial blades 10a and 10b can be adjusted over a wide range.
- the radial blade shown in FIG. 2 is obtained by inserting a ring-shaped reinforcing material 15 into the annular folded portion 12. Since the annular folded portion 12 is formed by bending the yarn bundle 20 outward with a space formed in the central portion, a ring-shaped reinforcing material 15 may be inserted during the bending. And the mechanical strength of the circumferential direction of a cyclic
- the first radial blade 10a and the second radial blade 10b in the radial blade 10 of the double structure are the same size, and the respective yarn lengths in the blade portion 14 are the same.
- the radial blades 10 of various sizes and shapes can be manufactured by selecting the length of the yarn bundle 20 used for manufacturing and selecting the position of the annular folded portion 12.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Brushes (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Massaging Devices (AREA)
Abstract
Description
11 貫通孔
12 環状折り返し部
13 環状コア部
14 羽根部
15 補強材
20 糸束
21 糸材
22 環状溶着部
23 仮溶着部
50 第1溶着ユニット
51 糸送りユニット
52 第1加工台座
53 第1溶着ホーン
53a 溶着面
53b 棒状凸部(棒状物)
53c 環状凹部
60 第2溶着ユニット
61 第2溶着ホーン
61a 溶着面
61b 円形凹部
61c 環状凹部
62 第2加工台座
63 ガイドピン
70 クランパーユニット
71 クランパー搬送ユニット
72,73,74 クランパー
80 第1溶着ホーン
81 溶着面
82 棒状凸部(棒状物)
83 環状凹部
90 第2溶着ホーン
91 溶着面
92 円形凹部
93 環状凹部
100 カッターユニット
Claims (7)
- 中心部に貫通孔が設けられたディスク状で環状のコア部の周方向全域から多数本の糸材が外周側へ延出して放射状の羽根部を形成したディスク型の放射状羽根であって、連続した1本の糸束の長手方向中間部を折り返し部として、その折り返し部両端側の糸束が中心部に空間を残して放射状に開いて重ね合わされると共に、前記中心部の空間周囲が環状に溶着されて前記コア部を形成する放射状羽根。
- 請求項1に記載の放射状羽根において、前記中心部の空間周囲に形成される環状の折り返し部より外側が環状に溶着されて前記コア部を形成する放射状羽根。
- 請求項2に記載の放射状羽根において、環状の折り返し部は、両面側へドーム状に突出し内面側へアーチ状に突出した厚くて弾性を有するボス部である放射状羽根。
- 中心部に貫通孔が設けられたディスク状で環状のコア部の周方向全域から多数本の糸材が外周側へ延出して放射状の羽根部を形成したディスク型放射状羽根の製造方法であって、
連続した1本の糸束の長手方向中間部を折り返し部として、その折り返し部の一端側の糸束を、折り返し部を起点として且つ中心部に空間を確保した状態で周囲へ放射状に開く第1開放工程と、
周囲へ放射状に開いた一端側の糸束を、中心部の空間周囲で環状に溶着する第1溶着工程と、
前記折り返し部の他端側の糸束を、前記折り返し部を起点として且つ中心部に空間を確保した状態で周囲へ放射状に開く第2開放工程と、
周囲へ放射状に開いた他端側の糸束を、中心部の空間周囲で環状に溶着する第2溶着工程とを含む放射状羽根製造方法。 - 第1溶着工程及び第2溶着工程において、周囲へ放射状に開いた両端側の糸束を、中心部の空間周囲に形成された環状の折り返し部より外側で環状に溶着する請求項4に記載の放射状羽根製造方法。
- 請求項4又は5に記載の放射状羽根製造方法において、第1開放工程、第1溶着工程、第2開放工程、第2溶着工程を段階的に行う放射状羽根製造方法。
- 請求項4又は5に記載の放射状羽根製造方法において、第1開放工程と第2開放工程とを同時に実施し、引き続き第1溶着工程と第2溶着工程とを同時に実施する放射状羽根製造方法。
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JP2013555324A JP6042350B2 (ja) | 2012-01-27 | 2013-01-25 | 放射状羽根及びその製造方法 |
KR1020147023062A KR101875993B1 (ko) | 2012-01-27 | 2013-01-25 | 방사상 베인 및 그 제조방법 |
EA201400840A EA026178B1 (ru) | 2012-01-27 | 2013-01-25 | Веерная пластина и способ ее изготовления |
CN201380017277.9A CN104203047B (zh) | 2012-01-27 | 2013-01-25 | 放射状毛刷及其制造方法 |
US14/374,427 US9976432B2 (en) | 2012-01-27 | 2013-01-25 | Radial vane and method of manufacturing same |
EP13740912.4A EP2807949B1 (en) | 2012-01-27 | 2013-01-25 | Radial vane and method of manufacturing same |
DK13740912.4T DK2807949T3 (da) | 2012-01-27 | 2013-01-25 | Radialt blad og fremgangsmåde til fremstilling deraf |
AU2013212860A AU2013212860B2 (en) | 2012-01-27 | 2013-01-25 | Radial vane and method of manufacturing same |
PL13740912T PL2807949T3 (pl) | 2012-01-27 | 2013-01-25 | Łopatka promieniowa i sposób jej wytwarzania |
ES13740912T ES2718315T3 (es) | 2012-01-27 | 2013-01-25 | Paleta radial y método de fabricación de la misma |
HK15105127.8A HK1204532A1 (zh) | 2012-01-27 | 2015-05-29 | 放射狀毛刷及其製造方法 |
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EA201400840A1 (ru) | 2014-11-28 |
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US20140356148A1 (en) | 2014-12-04 |
MY166476A (en) | 2018-06-27 |
KR101875993B1 (ko) | 2018-08-02 |
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EP2807949A4 (en) | 2015-12-30 |
CN104203047B (zh) | 2016-04-27 |
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JP6802038B2 (ja) | 2020-12-16 |
JPWO2013111865A1 (ja) | 2015-05-11 |
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US9976432B2 (en) | 2018-05-22 |
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DK2807949T3 (da) | 2019-05-27 |
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