WO2017150131A1 - ねじ部材、締結部材およびダーツ - Google Patents
ねじ部材、締結部材およびダーツ Download PDFInfo
- Publication number
- WO2017150131A1 WO2017150131A1 PCT/JP2017/004804 JP2017004804W WO2017150131A1 WO 2017150131 A1 WO2017150131 A1 WO 2017150131A1 JP 2017004804 W JP2017004804 W JP 2017004804W WO 2017150131 A1 WO2017150131 A1 WO 2017150131A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flank
- thread
- screw
- screw member
- angle
- Prior art date
Links
- 230000002265 prevention Effects 0.000 claims abstract description 42
- 230000000694 effects Effects 0.000 description 9
- 230000010006 flight Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- 241000756122 Aristida purpurascens Species 0.000 description 1
- 201000003740 cowpox Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B6/00—Projectiles or missiles specially adapted for projection without use of explosive or combustible propellant charge, e.g. for blow guns, bows or crossbows, hand-held spring or air guns
- F42B6/003—Darts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B65/00—Implements for throwing ; Mechanical projectors, e.g. using spring force
- A63B65/02—Spears or the like ; Javelins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/30—Locking exclusively by special shape of the screw-thread
Definitions
- the present invention relates to a screw member, a fastening member provided with the screw member, and a dart.
- the darts used in the dart game are a metal barrel that the player has with his fingers, a point attached to the tip of the barrel (tip), and a shaft attached to the rear end of the barrel And a flight (Yaba) attached to the shaft.
- Darts include hard darts whose points are made of metal and soft darts whose points are made of plastic. Shafts and flights are often made of plastic.
- the fastening with the screw part has a problem that the fastening with the screw part tends to be loosened as the dart is thrown repeatedly.
- the width of the barrel thread is slightly different depending on the manufacturer. Therefore, the thread of the point and shaft may be designed to have a large play with respect to the reference thread shape to fit the barrels of various manufacturers, and in this case, it is particularly easy to loosen.
- the fastening by the screw part is loosened, the player may become concerned about looseness during the game, and the player's concentration may be reduced.
- a dart provided with a biasing member in the screw hole for pushing back the screw shaft of the shaft screwed into the screw hole of the barrel in a direction away from the screw hole Patent Document 1.
- a dart provided with a protrusion having a screw shaft that is screwed into a screw hole of a barrel and a seating surface of the shaft that pushes back the barrel in a direction in which the screw is removed by elastic deformation Patent Document 2.
- the following members have been proposed as fastening members that are not related to darts but are not easily loosened by the screw portion.
- a fastening member in which the flank angle of one flank of the flank on both sides of the thread of one screw member is smaller than the flank angle of the thread flank of the other screw member (reference mountain shape) Patent Document 3
- a slit is formed at the top of the thread of one screw member, and the flank flank angle on both sides of the screw thread of one screw member is replaced with the flank flank of the other screw member (reference thread).
- Fastening member made smaller than corner (Patent Documents 5 and 6).
- both the fastening members (3) and (4) have a continuous thread, a large force is required to elastically deform the entire thread. Therefore, a large torque is required at the time of fastening, and there is a problem that it is difficult to fasten the screw members.
- the present invention relates to a screw member that has a locking effect and does not require a large force when fastened to another screw member, or can adjust the force (frictional force) when fastened by design;
- a fastening member and a dart that are difficult to loosen and that do not require a large force when the members are fastened or can adjust the force (frictional force) during fastening according to design.
- the present invention has the following aspects. ⁇ 1> having a discontinuous spiral thread formed with a plurality of split portions in the middle; at least one of the discontinuous portions of the thread sandwiched between the split portions is a flank on both sides of the thread
- the flank angle of one of the flank is smaller than the flank angle of the corresponding flank of the reference chevron, and at least a part of the one flank is a loosening prevention portion disposed outside the corresponding flank of the reference chevron
- the other flank is located on the inner side of the corresponding flank of the reference mountain so that a gap is formed between the other flank and the corresponding flank of the reference mountain.
- the screw member according to ⁇ 1> wherein the screw member is a loosening prevention portion arranged.
- At least one of the discontinuous portions has a flank angle of the follower flank smaller than a flank angle of the follower flank of the reference mountain shape, and at least a part of the follower flank is larger than the follower flank of the reference mountain shape.
- the flank angle of the advancing flank is smaller than the flank angle of the advancing flank of the reference chevron, and the advancing flank.
- ⁇ 4> The slanted portion according to any one of ⁇ 1> to ⁇ 3>, wherein inclined portions having a peak height that decreases toward the end are provided at both ends in the spiral direction of the locking portion.
- Screw member. ⁇ 5> a male screw member; and a female screw member that is detachably fastened to the male screw member; either one or both of the male screw member and the female screw member are the items ⁇ 1> to ⁇ 4>.
- the fastening member which is a screw member as described in any one of these.
- ⁇ 6> a barrel; a point fastened to a first end of the barrel; a shaft fastened to a second end of the barrel; a flight attached to the shaft; the point; The dart, wherein at least one of the barrel and the shaft is the screw member according to any one of ⁇ 1> to ⁇ 4>.
- the screw member of the present invention has a locking effect and does not require a large force when fastening with another screw member, or can adjust the force (friction force) during fastening by design.
- the fastening member and the dart of the present invention are not easily loosened by the threaded portion, and a large force is not required when fastening the members, or the force (frictional force) at the time of fastening can be adjusted by design.
- FIG. 1 It is a side view which shows the thread part vicinity in one embodiment of the screw member of this invention. It is the enlarged view to which the screw thread vicinity of FIG. 1 was expanded. It is sectional drawing which shows the mode of the screw thread at the time of screwing the screw shaft of the external thread member which is one Embodiment of the screw member of this invention in the screw hole of a female thread member. It is sectional drawing which shows the mode of the screw thread when the screw shaft of the external thread member which is one embodiment of the screw member of this invention is completely screwed in the screw hole of the internal thread member, and the load is applied from the seat surface side. is there. It is a perspective view which shows a mode that the soft dart was decomposed
- screw member means a part having a screw in a part thereof.
- a screw member having a male screw is called a male screw member
- a screw member having a female screw is called a female screw member.
- the “thread portion” refers to a male screw portion (screw shaft) or a female screw portion (screw hole) in the screw member.
- Screw thread refers to a screw having a thread on the outer surface of a cylinder or cone.
- female thread refers to a screw having a thread on the inner surface of a cylinder or a cone.
- Thread refers to the entity between two adjacent flanks.
- “Screw groove” refers to a space portion of a recess between two adjacent flank. “Frank” refers to a surface that connects the top of the thread and the bottom of the thread groove.
- the “flank angle” refers to an angle formed by a straight line perpendicular to the axis of each flank measured in a cross-sectional shape including the screw axis.
- the “thread angle” refers to an angle formed by two adjacent flank measured in a cross-sectional shape including the screw axis.
- the “advance-side flank” refers to a flank that faces the moving direction of the screw member during screwing. “Following flank” means a flank on the opposite side of the advancing flank.
- Pressure-side flank refers to a flank on the side that receives a direct load when it is screwed and loaded.
- Player side flank refers to a flank on the opposite side of the pressure side flank.
- the “mountain peak” is the surface that connects the flanks on both sides of the thread.
- “Valley” refers to the surface connecting the flanks on both sides of the thread groove.
- the “seat surface” means a portion of a surface that receives a direct force when the screw member is tightened. However, screw flank is excluded.
- the “reference mountain shape” refers to a theoretical thread shape of a screw defined by a theoretical size and angle shared by a female screw and a male screw in a cross section including an axis.
- the standard thread shape of a general metric screw is defined in Japanese Industrial Standard JIS B 0205-1: 2001 (corresponding international standard ISO 68-1: 1998).
- the thread angle is 60 ° and the flank angle is 30 °.
- the shape of the thread is stipulated in Japanese Industrial Standard JIS B 0216-1: 2013 (corresponding international standard ISO 2901: 1993) and has a thread shape with a thread angle of 30 ° and a flank angle of 15 °. is there.
- the standard thread shape of the parallel thread for pipes is specified in Japanese Industrial Standard JIS B 0202: 1999 (corresponding international standard ISO 228-1: 1994).
- the thread thread angle is 55 ° and the flank angle is 27.5 °. Shape. Definitions of terms relating to screws conform to Japanese Industrial Standards JIS B 0101: 2013 “Thread Terms” (corresponding international standards ISO 1891: 2009, ISO 5408: 2009).
- the screw member of the present invention has a discontinuous spiral screw thread in which a plurality of dividing portions are formed in the middle.
- at least one of the discontinuous parts of the screw thread sandwiched between the dividing parts is a loosening prevention part.
- the flank angle of at least one flank of the flank on both sides of the screw thread is made smaller than the flank angle of the corresponding flank of the reference chevron.
- At least a part of the flank that is smaller than the flank angle of the corresponding flank of the reference chevron is arranged outside the corresponding flank of the reference chevron.
- FIG. 1 is a side view showing the vicinity of a screw portion (screw shaft) in an embodiment of the screw member (male screw member) of the present invention.
- FIG. 2 is an enlarged view of the vicinity of the screw thread of FIG.
- the male screw member 1 has a member main body 10 and a screw shaft 12 that protrudes from a surface that becomes a seating surface 11 in the member main body 10.
- the screw shaft 12 includes a cylinder 13 and a discontinuous spiral screw thread 15 provided on the outer periphery of the cylinder 13 and having a plurality of dividing portions 14 formed in the middle.
- the screw thread 15 is sandwiched between a continuous portion 15a extending from the seating surface 11 side or the screw tip 17 side until it is divided by the first dividing portion 14 and a dividing portion 14 that exists in the vicinity of the center of the screw shaft 12. It has a relatively long long discontinuous portion 15b and a plurality of relatively short short discontinuous portions 15c that are sandwiched between the dividing portions 14 and are present between the continuous portion 15a and the long discontinuous portion 15b. .
- the short discontinuous portion 15 c is the loosening prevention portion 18.
- a part of the plurality of locking parts 18 is a first locking part 18a, and the remaining part is a second locking part 18b.
- the flank angle ⁇ 1 of the follower flank 21a is smaller than the flank angle ⁇ 2 of the follower flank 22a of the reference chevron B.
- the flank angle ⁇ 1 of the advance side flank 21b (play side flank) is smaller than the flank angle ⁇ 2 of the advance side flank 22b of the reference chevron B.
- the follower side flank 21a is disposed outside the follower side flank 22a of the reference angle B.
- the first locking portion 18a has a width at the same height as the valley bottom 23 that is narrower than the width of the reference chevron B so that the advance flank 21b is on the inner side of the advance flank 22b of the reference chevron B. Yes.
- the flank angle ⁇ 1 of the follower flank 21a (pressure flank) is made smaller than the flank angle ⁇ 2 of the follower flank 22a of the reference chevron B, similarly to the first loosening prevention portion 18a.
- the flank angle ⁇ 1 of the advancing flank 21b (playing side flank) is made smaller than the flank angle ⁇ 2 of the advancing flank 22b of the reference angle B, similarly to the first loosening prevention portion 18a.
- the second loosening prevention portion 18b has the advance side flank 21b arranged outside the advance side flank 22b of the reference chevron B.
- the second locking part 18b is at the same height as the valley bottom 23 so that the follower flank 21a is inside the follower flank 22a of the reference chevron B.
- the width is narrower than the width of the reference chevron B.
- the flank angle ⁇ 1 of the first locking part 18a only needs to be smaller than the flank angle ⁇ 2 of the reference angle B, and is preferably less than half of the flank angle ⁇ 2 from the viewpoint of sufficiently exhibiting the locking effect.
- the flank angle ⁇ 1 of the second locking part 18b only needs to be smaller than the flank angle ⁇ 2 of the reference chevron B, and is preferably less than half of the flank angle ⁇ 2 from the viewpoint of sufficiently exhibiting the locking effect.
- the width of the loosening prevention portion 18 at the same height as the valley bottom 23 is 30% of the width of the reference chevron B at the same height as the valley bottom 23 from the viewpoint of balance of strength retention and ease of elastic deformation of the loosening prevention portion 18. ⁇ 60% is preferred.
- the reason why the male screw member 1 has a loosening prevention effect is as follows.
- the screw shaft 12 of the male screw member 1 is designed in accordance with the reference thread shape, so that when screwing into the screw hole 32 of the screw member 3 in the direction of the arrow, there is one point before screwing.
- the follower flank 21a of the first loosening prevention portion 18a along the chain line comes into contact with the follower flank 41a of the thread 35 of the female screw member 3 and elastically deforms. Since the elastically deformed first locking part 18a tries to push back the screw thread 35 in contact with the first locking part 18a, a large frictional force is generated between the first locking part 18a and the screw thread 35.
- the screw shaft 12 of the male screw member 1 is designed in accordance with the reference thread shape, so that when screwing into the screw hole 32 of the screw member 3 in the direction of the arrow, there is one point before screwing.
- the advance side flank 21b of the second loosening prevention portion 18b along the chain line comes into contact with the advance side flank 41b of the screw thread 35 of the female screw member 3 and elastically deforms. Since the elastically deformed second locking part 18b tries to push back the screw thread 35 in contact with the second locking part 18b, a large frictional force is generated between the second locking part 18b and the screw thread 35.
- the loosening prevention portion 18 of the external thread member 1 and the thread 35 of the internal thread member 3 generate a large frictional force both between the follower flank and between the advance flank. Therefore, even if the screwing of the male screw member 1 into the screw hole 32 of the female screw member 3 is stopped halfway, loosening of the fastening by the screw shaft 12 and the screw hole 32 is sufficiently suppressed.
- the screw shaft 12 of the male screw member 1 is completely screwed into the screw hole 32 of the female screw member 3, and the bearing surface 11 side of the male screw member 1 and the seat surface side of the screw hole 32 are moved in the direction of the arrow.
- the loosening prevention portion 18 of the male screw member 1 and the thread 35 of the female screw member 3 are between the pressure side flank (following side flank) and between the play side flank (advance side flank). Both generate large frictional forces. Therefore, even if the screw shaft 12 of the male screw member 1 is completely screwed into the screw hole 32 of the female screw member 3, the loosening of the fastening by the screw shaft 12 and the screw hole 32 is sufficiently suppressed.
- the reason why a large force is not required when the male screw member 1 is fastened to the female screw member 3 is as follows. Since the screw thread 15 is discontinuous in which a plurality of dividing portions 14 are formed in the middle, and the discontinuous portion is used as a loosening prevention portion 18, the screw thread is like a screw member having a conventional loosening prevention effect. It is not necessary to elastically deform the whole, and the loosening stopper 18 is easily elastically deformed. Therefore, a large force is not required when the male screw member 1 and the female screw member 3 are fastened, and the screw members are easily fastened.
- the advance side flank 21b is disposed on the inner side of the advance side flank 22b of the reference chevron B. Therefore, a large gap is formed between the advancing flank 21b and the advancing flank 22b of the reference chevron B (the advancing flank 41b of the thread 35). As a result, the first loosening prevention portion 18a is easily elastically deformed toward the gap between the advance side flank 21b and the advance side flank 41b of the screw thread 35. In the first locking part 18a, the width at the same height as the valley bottom 23 is narrower than the width of the reference chevron B. Therefore, the first loosening prevention portion 18a is further easily elastically deformed.
- the follower flank 21a is disposed inside the follower flank 22a of the reference angle B. Therefore, a large gap is formed between the follower flank 21a and the follower flank 22a of the reference chevron B (the follower flank 41a of the screw thread 35). As a result, the second locking portion 18b is easily elastically deformed toward the gap between the follower flank 21a and the follower flank 41a of the thread 35. In the second locking part 18b, the width at the same height as the valley bottom 23 is narrower than the width of the reference chevron B. Therefore, the second loosening prevention portion 18b is further easily elastically deformed.
- the screw shaft 12 and the screw When the screw shaft 12 of the male screw member 1 is screwed into the screw hole 32 of the female screw member 3 while relatively rotating with the hole 32, the resistance between the locking portion 18 and the thread 35 of the female screw member 3 is reduced.
- the screw shaft 12 and the screw hole 32 can rotate smoothly. Since the thread 15 has the continuous part 15a and the long discontinuous part 15b, the strength of the thread 15 is maintained in the continuous part 15a and the long discontinuous part 15b. Therefore, even if a large force is applied in the direction of pulling the screw shaft 12 of the male screw member 1 from the screw hole 32 of the female screw member 3, the screw thread 15 is not easily damaged, and the screw shaft 12 does not come out of the screw hole 32. .
- the screw member of the present invention has a discontinuous spiral screw thread in which a plurality of split portions are formed in the middle, and at least one of the thread discontinuities sandwiched between the split portions is on both sides of the screw thread.
- the flank angle of one of the flank is smaller than the flank angle of the corresponding flank of the reference chevron, and at least a part of the flank is a loosening prevention portion arranged outside the corresponding flank of the reference chevron It may be anything, and is not limited to the screw member 1 in the illustrated example.
- the screw member of the present invention may be a male screw member or a female screw member. From the viewpoint of easily forming the locking portion, a male screw member is preferable.
- the screw member of the present invention may be made of plastic or metal. It is preferable that it is made of plastic because it is easy to form the locking part and the locking part is easily elastically deformed.
- the locking part may be only one of the first locking part and the second locking part. Even if only one of the first locking part and the second locking part is generated, a large frictional force is generated between the locking part and the thread of the other screw member. It is fully demonstrated.
- the number of the first locking portions in the screw member is preferably 1 to 8, and more preferably 1 to 4.
- the number of second loosening prevention portions in the screw member is preferably 1 to 8, more preferably 1 to 4.
- the length in the direction in which the thread of the first locking part extends is about 5 to 20% of the circumference of the thread axis of the thread.
- the length in the direction in which the screw thread of the second locking part extends is about 5 to 30% with respect to the circumference of the screw shaft of the screw thread.
- the inclined portion of the loosening prevention portion is not necessarily provided.
- the long discontinuous portion 15b of the screw thread 15 is not necessarily provided.
- the force (frictional force) at the time of fastening can be adjusted by the design of the locking part. For example, by changing the flank angle of the flank of the locking part, changing the width of the locking part at the same height as the valley bottom, or changing the hardness of the screw member material, the locking part and other screws
- the frictional force generated between the screw threads of the member can be set to a desired magnitude.
- the fastening member of the present invention includes a screw member; and a female screw member that is detachably fastened to the male screw member; either one or both of the male screw member and the female screw member are the screw members of the present invention.
- this fastening member is detachable, it is not necessarily fastened in the present invention, and each of the male screw member and the female screw member may exist in an unfastened state.
- the male screw member is the screw member of the present invention
- the female screw member is preferably a screw member because the screw thread is designed according to the reference thread shape. For example, the following aspects are mentioned.
- ⁇ 1> having a discontinuous spiral thread formed with a plurality of split portions in the middle; at least one of the discontinuous portions of the thread sandwiched between the split portions is a flank on both sides of the thread
- the flank angle of one flank is smaller than the flank angle of the corresponding thread flank of the female thread, and at least a part of the one flank is disposed outside the flank of the corresponding thread groove of the female thread.
- a fastening member comprising a male screw member having a locking portion and a female screw member that is detachably fastened.
- the other flank of the female thread is formed such that at least one of the discontinuous portions forms a gap between the other flank of the flank on both sides and the flank of the corresponding thread groove of the female thread.
- the fastening member according to ⁇ 1> further comprising: a male screw member having a loosening prevention portion that is located inside the flank of the corresponding screw groove and the female screw member that is detachably fastened.
- At least one of the discontinuous portions has a flank angle of the follower flank smaller than a flank angle of the follower flank of the corresponding thread of the female screw, and at least a part of the follower flank corresponds to the female screw.
- a first locking portion disposed on the outer side of the follower flank of the thread groove; wherein at least one of the discontinuous portions has a flank flank angle of the lead flank of the corresponding thread of the female thread.
- ⁇ 5> a barrel; a point fastened to a first end of the barrel; a shaft fastened to a second end of the barrel; a flight attached to the shaft;
- the dart wherein the barrel or the shaft and the barrel are fastening members according to any one of ⁇ 1> to ⁇ 4>.
- the “corresponding thread of the female thread” means that the female thread member is in contact with any thread of the male thread member through its flank surface in a state where the thread shaft of the male thread member is completely screwed into the female thread member. It is a screw thread.
- the female screw member 3 corresponds to the locking portion 18 a that is the thread of the male screw member 1.
- the thread to be threaded is the thread of the female screw member 3 having the flank surface 41a that contacts the flank surface 21a or 21b of the locking portion 18a or the thread of the female screw member 3 having the flank surface 41b.
- the “corresponding thread groove of a female thread” is a thread of a female thread in which an arbitrary thread of a male thread member contacts through its flank surface when the thread shaft of the male thread member is completely screwed into the female thread member. It is a thread groove in the space surrounded by the flank surface of the mountain.
- the female screw member 3 corresponds to the locking portion 18 a that is the thread of the male screw member 1.
- the thread groove to be is a thread groove in a space surrounded by the flank surfaces 41a and 41b of the thread of the female screw member 3 that is in contact through the flank surfaces 21a and 21b of the loosening prevention portion 18a.
- the fastening member includes a combination of a bolt and a nut, and an article in which a plurality of members can be easily assembled and disassembled by a threaded portion, such as sports / game equipment (darts, etc.), toys, daily necessities, assembly furniture , Electrical products, machines and the like.
- FIG. 5 is a perspective view showing a state where the soft dart is disassembled.
- the dart 50 is fastened to a metal barrel 51 that is a part that the player holds with a finger, a point 52 (tip) fastened to the first end of the barrel 51, and a second end of the barrel 51. It comprises a shaft 53 and a flight 54 (arrow feather) attached to the latter half of the shaft 53.
- a first screw hole 55 is provided at the first end of the barrel 51, and a second screw hole 56 is provided at the second end.
- a screw shaft 57 that is screwed into the first screw hole 55 of the barrel 51 is provided on the rear end side of the point 52.
- a screw shaft 58 that is screwed into the second screw hole 56 of the barrel 51 is provided on the distal end side of the shaft 53.
- a slit 59 into which the flight 54 is inserted is provided in the latter half of the shaft 53.
- FIG. 6 is a side view showing an embodiment of the point in the dart of the present invention.
- the point 52 which is the screw member of the present invention has a conical point body 60 and a screw shaft 12 (screw shaft 57) protruding from the bottom surface of the cone of the point body 60.
- screw shaft 12 screw shaft 57
- the fastening member (dart) of the present invention described above includes a screw member (point or the like) that has a locking effect and does not require a large force when fastened with another screw member. For this reason, the fastening by the screw portion is difficult to loosen, and a large force is not required when fastening the members together.
- the fastening member of the present invention includes a male screw member; a female screw member that is detachably fastened to the male screw member, and one or both of the male screw member and the female screw member are the screw members of the present invention. If there is something.
- the dart of the present invention is not limited to the dart 50 in the illustrated example as long as at least one of the point, the barrel, and the shaft is the screw member of the present invention.
- a mold corresponding to the point 52 shown in FIG. 6 was produced, and plastic was molded using this mold to produce a plurality of points 52.
- Point 52 was screwed into each barrel and fastened. After attaching a shaft and a flight to make a dart, the dart throwing was repeated. Even when any of the barrels of 10 companies was used, the fastening between the point 52 and the barrel was not loosened.
- the screw member of the present invention is useful as a screw member used in bolts, nuts, etc., and used in sports / amusement goods (such as darts), toys, daily necessities, assembled furniture, electrical products, machines and the like.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Connection Of Plates (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Food-Manufacturing Devices (AREA)
- Dowels (AREA)
- Clamps And Clips (AREA)
Abstract
Description
本願は2016年3月2日に、日本に出願された特願2016-40439号に基づき優先権を主張し、その内容をここに援用する。
(1)バレルのねじ穴にねじ込まれたシャフトのねじ軸を、ねじ穴から外れる方向に押し返すための付勢部材をねじ穴内に備えたダーツ(特許文献1)。
(2)バレルのねじ穴にねじ込まれるねじ軸を有するポイントおよびシャフトの座面に、弾性変形によってねじが外れる方向にバレルを押し返す突起が設けられたダーツ(特許文献2)。
しかし、(1)のダーツでは、ねじ穴内に付勢部材を設ける必要があり、ダーツの製造コストが高くなる。(2)のダーツでは、バレルが突起に圧接している状態ではゆるみ止め効果があるものの、バレルが突起から少しでも離れると、ゆるみ止め効果が失われる。
(3)一方のねじ部材のねじ山の両側のフランクのうち一方のフランクのフランク角を、他方のねじ部材(基準山形)のねじ山のフランクのフランク角よりも小さくした締結部材(特許文献3、4)。
(4)一方のねじ部材のねじ山の頂にスリットを形成して、一方のねじ部材のねじ山の両側のフランクのフランク角を、他方のねじ部材(基準山形)のねじ山のフランクのフランク角よりも小さくした締結部材(特許文献5、6)。
<1>途中に複数の分断部が形成された不連続な螺旋状のねじ山を有し;前記分断部に挟まれた前記ねじ山の不連続部の少なくとも一つが、ねじ山の両側のフランクのうち一方のフランクのフランク角が基準山形の対応するフランクのフランク角よりも小さくされ、かつ前記一方のフランクの少なくとも一部が基準山形の対応するフランクよりも外側に配置されたゆるみ止め部である、ねじ部材。
<2>前記ねじ山の両側のフランクのうち他方のフランクと基準山形の対応するフランクとの間の全体に隙間が形成されるように、前記他方フランクが基準山形の対応するフランクよりも内側に配置されたゆるみ止め部である、前記<1>に記載のねじ部材。
<3>前記不連続部の少なくとも一つが、追い側フランクのフランク角が基準山形の追い側フランクのフランク角よりも小さくされ、かつ前記追い側フランクの少なくとも一部が基準山形の追い側フランクよりも外側に配置された第1のゆるみ止め部であり;前記不連続部の少なくとも一つが、進み側フランクのフランク角が基準山形の進み側フランクのフランク角よりも小さくされ、かつ前記進み側フランクの少なくとも一部が基準山形の進み側フランクよりも外側に配置された第2のゆるみ止め部である、前記<1>または<2>に記載のねじ部材。
<4>前記ゆるみ止め部の螺旋方向の両端に、端に向かうにしたがって山の高さが低くされた傾斜部が設けられている、前記<1>~<3>のいずれか一項に記載のねじ部材。
<5>おねじ部材と;前記おねじ部材と着脱可能に締結されるめねじ部材とを備え;前記おねじ部材およびめねじ部材のいずれか一方または両方が、前記<1>~<4>のいずれか一項に記載のねじ部材である、締結部材。
<6>バレルと;前記バレルの第1の端部に締結されたポイントと;前記バレルの第2の端部に締結されたシャフトと;前記シャフトに取り付けられたフライトとを備え;前記ポイント、前記バレルおよび前記シャフトのうちの少なくとも1つが、前記<1>~<4>のいずれか一項に記載のねじ部材である、ダーツ。
本発明の締結部材およびダーツは、ねじ部による締結がゆるみにくく、かつ部材同士を締結する際に大きな力が必要とならない、もしくは締結の際の力(摩擦力)を設計によって調節できる。
「ねじ部材」とは、その一部にねじをもった部品をいう。おねじをもったねじ部材をおねじ部材、めねじをもったねじ部材をめねじ部材という。
「ねじ部」とは、ねじ部材におけるおねじの部分(ねじ軸)またはめねじの部分(ねじ穴)をいう。
「おねじ」とは、ねじ山が円筒または円すいの外面にあるねじをいう。
「めねじ」とは、ねじ山が円筒または円すいの内面にあるねじをいう。
「ねじ山」とは、2つの隣り合ったフランク間の実体部分をいう。
「ねじ溝」とは、2つの隣り合ったフランク間のくぼみの空間部分をいう。
「フランク」とは、ねじ山の山の頂とねじ溝の谷底とを連絡する面をいう。
「フランク角」とは、ねじの軸線を含んだ断面形において測った個々のフランクが、軸線に直角な直線となす角をいう。
「ねじ山の角度」とは、ねじの軸線を含んだ断面形において測った隣り合う二つのフランクがなす角度をいう。
「進み側フランク」とは、ねじ込みの際、ねじ部材の進行方向に対面するフランクをいう。
「追い側フランク」とは、進み側フランクの反対側のフランクをいう。
「圧力側フランク」とは、ねじ込まれて荷重がかかった際、直接荷重を受ける側のフランクをいう。
「遊び側フランク」とは、圧力側フランクの反対側のフランクをいう。
「山の頂」とは、ねじ山の両側のフランクを連絡する面をいう。
「谷底」とは、ねじ溝の両側のフランクを連絡する面をいう。
「座面」とは、ねじ部材の締付けのとき直接力を受ける面の部分をいう。ただし,ねじのフランクを除く。
「基準山形」とは、軸線を含む断面において、めねじとおねじとが共有する理論上の寸法と角度とで定義されるねじの理論上のねじ山形状をいう。例えば、一般用メートルねじの基準山形は、日本工業規格JIS B 0205-1:2001(対応国際規格ISO 68-1:1998)に規定されており、ねじ山の角度60゜、フランク角が30゜のねじ山形状である。メートル台形ねじの基準山形は、日本工業規格JIS B 0216-1:2013(対応国際規格ISO 2901:1993)に規定されており、ねじ山の角度30゜、フランク角が15゜のねじ山形状である。管用平行ねじの基準山形は、日本工業規格JIS B 0202:1999(対応国際規格ISO 228-1:1994)に規定されており、ねじ山の角度55゜、フランク角が27.5゜のねじ山形状である。
ねじに関する用語の定義は、日本工業規格JIS B 0101:2013「ねじ用語」(対応国際規格ISO 1891:2009、ISO 5408:2009)に準ずる。
本発明のねじ部材は、途中に複数の分断部が形成された不連続な螺旋状のねじ山を有する。
本発明のねじ部材においては、分断部に挟まれたねじ山の不連続部の少なくとも一つがゆるみ止め部とされている。
ゆるみ止め部においては、ねじ山の両側のフランクのうち少なくとも一方のフランクのフランク角が、基準山形の対応するフランクのフランク角よりも小さくされている。基準山形の対応するフランクのフランク角よりも小さくされているフランクの少なくとも一部が、基準山形の対応するフランクよりも外側に配置されている。
図1は、本発明のねじ部材(おねじ部材)の一実施形態例におけるねじ部(ねじ軸)付近を示す側面図である。図2は、図1のねじ山付近を拡大した拡大図である。
おねじ部材1は、部材本体10と、部材本体10において座面11となる面から突設されたねじ軸12とを有する。
ねじ山15は、座面11側またはねじ先17側から延びる、最初の分断部14で分断されるまでの連続部15aと、ねじ軸12の中央付近に存在する、分断部14に挟まれた比較的長尺の長尺不連続部15bと、連続部15aおよび長尺不連続部15bの間に存在する、分断部14に挟まれた比較的短尺の複数の短尺不連続部15cとを有する。これらのうち短尺不連続部15cが、ゆるみ止め部18とされる。
複数のゆるみ止め部18の一部が、第1のゆるみ止め部18aとされ、残部が、第2のゆるみ止め部18bとされる。
第1のゆるみ止め部18aは、進み側フランク21b(遊び側フランク)のフランク角β1が基準山形Bの進み側フランク22bのフランク角β2よりも小さくされている。
第1のゆるみ止め部18aは、追い側フランク21aが、基準山形Bの追い側フランク22aよりも外側に配置されている。
第1のゆるみ止め部18aは、進み側フランク21bが、基準山形Bの進み側フランク22bよりも内側となるように、谷底23と同じ高さにおける幅が基準山形Bの幅よりも狭くされている。
第2のゆるみ止め部18bは、第1のゆるみ止め部18aと同様に、進み側フランク21b(遊び側フランク)のフランク角β1が基準山形Bの進み側フランク22bのフランク角β2よりも小さくされている。
第2のゆるみ止め部18bは、第1のゆるみ止め部18aとは逆に、進み側フランク21bが、基準山形Bの進み側フランク22bよりも外側に配置されている。
第2のゆるみ止め部18bは、第1のゆるみ止め部18aとは逆に、追い側フランク21aが、基準山形Bの追い側フランク22aよりも内側となるように、谷底23と同じ高さにおける幅が基準山形Bの幅よりも狭くされている。
第2のゆるみ止め部18bの螺旋方向の両端部には、座面11側に少し曲げられるとともに、端に向かうにしたがって山の高さが低くされた傾斜部19bが設けられている。
第2のゆるみ止め部18bのフランク角β1は、基準山形Bのフランク角β2よりも小さければよく、ゆるみ止め効果を十分に発揮させる点から、フランク角β2の半分以下が好ましい。
谷底23と同じ高さにおけるゆるみ止め部18の幅は、ゆるみ止め部18の強度の保持と弾性変形のしやすさのバランスの点から、谷底23と同じ高さにおける基準山形Bの幅の30~60%が好ましい。
おねじ部材1が、ゆるみ止め効果を有する理由は下記のとおりである。
第1のゆるみ止め部18aにおいては、α1<α2とし、かつ追い側フランク21aが基準山形Bの追い側フランク22aよりも外側に配置されている。そのため、図3に示すように、おねじ部材1のねじ軸12を、基準山形にしたがってねじ山35が設計されためねじ部材3のねじ穴32に、矢印方向にねじ込む際は、ねじ込む前は一点鎖線にあった第1のゆるみ止め部18aの追い側フランク21aが、めねじ部材3のねじ山35の追い側フランク41aに当接し、弾性変形する。弾性変形した第1のゆるみ止め部18aは、これに当接するねじ山35を押し返そうとするため、第1のゆるみ止め部18aとねじ山35との間で大きな摩擦力が発生する。
ねじ山15が、途中に複数の分断部14が形成された不連続なものとされ、かつ不連続部をゆるみ止め部18としているため、従来のゆるみ止め効果を有するねじ部材のようにねじ山全体を弾性変形させる必要がなく、ゆるみ止め部18を弾性変形させやすい。そのため、おねじ部材1とめねじ部材3と締結する際に大きな力が必要とならず、ねじ部材同士を締結させやすい。
第1のゆるみ止め部18aにおいては、谷底23と同じ高さにおける幅が基準山形Bの幅よりも狭くされている。そのため、第1のゆるみ止め部18aは、さらに弾性変形しやすくなる。
第2のゆるみ止め部18bにおいては、谷底23と同じ高さにおける幅が基準山形Bの幅よりも狭くされている。そのため、第2のゆるみ止め部18bは、さらに弾性変形しやすくなる。
ねじ山15は、連続部15aおよび長尺不連続部15bを有するため、連続部15aおよび長尺不連続部15bにおいてねじ山15の強度が保たれる。そのため、おねじ部材1のねじ軸12をめねじ部材3のねじ穴32から引き抜く方向に大きな力が加わっても、ねじ山15が破損しにくく、ねじ軸12がねじ穴32から抜けることがない。
本発明のねじ部材は、途中に複数の分断部が形成された不連続な螺旋状のねじ山を有し、分断部に挟まれたねじ山の不連続部の少なくとも一つが、ねじ山の両側のフランクのうち一方のフランクのフランク角が基準山形の対応するフランクのフランク角よりも小さくされ、かつこのフランクの少なくとも一部が基準山形の対応するフランクよりも外側に配置されたゆるみ止め部であるものであればよく、図示例のおねじ部材1に限定されない。
本発明のねじ部材は、プラスチック製であってもよく、金属製であってもよい。ゆるみ止め部を形成しやすい点およびゆるみ止め部が弾性変形しやすい点から、プラスチック製であることが好ましい。
ゆるみ止め部は、第1のゆるみ止め部および第2のゆるみ止め部のいずれか一方のみであってもよい。第1のゆるみ止め部および第2のゆるみ止め部のいずれか一方のみであっても、ゆるみ止め部と他のねじ部材のねじ山との間で大きな摩擦力が発生するため、ゆるみ止め効果が十分に発揮される。ねじ部材中の第1のゆるみ止め部の数は1~8つが好ましく、更に好ましくは1~4つである。ねじ部材中の第2のゆるみ止め部の数は1~8つが好ましく、更に好ましくは1~4つである。
第1のゆるみ止め部のねじ山が伸びていく方向の長さはねじ山のねじ軸一周に対して5~20%程度である。
一方、第2のゆるみ止め部のねじ山が伸びていく方向の長さは、ねじ山のねじ軸一周に対して5~30%程度である。
ゆるみ止め部の傾斜部は、必ずしも設けなくてもよい。
ねじ山15の長尺不連続部15bは、必ずしも設けなくてもよい。
本発明の締結部材は、ねじ部材と;おねじ部材と着脱可能に締結されるめねじ部材とを備え;おねじ部材およびめねじ部材のいずれか一方または両方が本発明のねじ部材である。この締結部材は着脱可能であるが、本発明において必ずしも締結されている必要はなく、締結されていない状態でおねじ部材、めねじ部材それぞれが存在していてもよい。ゆるみ止め部を形成しやすい点からは、おねじ部材が本発明のねじ部材であり、めねじ部材が基準山形にしたがってねじ山が設計されためねじ部材であることが好ましい。たとえば以下の態様が挙げられる。
<1>途中に複数の分断部が形成された不連続な螺旋状のねじ山を有し;前記分断部に挟まれた前記ねじ山の不連続部の少なくとも一つが、ねじ山の両側のフランクのうち一方のフランクのフランク角がめねじの対応するねじ山のフランクのフランク角よりも小さくされ、かつ前記一方のフランクの少なくとも一部がめねじの対応するねじ溝のフランクよりも外側に配置されたゆるみ止め部を有するおねじ部材と着脱可能に締結される前記めねじ部材とを備える締結部材。
<2>前記不連続部の少なくとも一つが、両側のフランクのうち他方のフランクとめねじの対応するねじ溝のフランクとの間の全体に隙間が形成されるように、前記他方のフランクがめねじの対応するねじ溝のフランクよりも内側とされたゆるみ止め部を有するおねじ部材と着脱可能に締結される前記めねじ部材とを備える、前記<1>に記載の締結部材。
<3>前記不連続部の少なくとも一つが、追い側フランクのフランク角がめねじの対応するねじ山の追い側フランクのフランク角よりも小さくされ、かつ前記追い側フランクの少なくとも一部がめねじの対応するねじ溝の追い側フランクよりも外側に配置された第1のゆるみ止め部であり;前記不連続部の少なくとも一つが、進み側フランクのフランク角がめねじの対応するねじ山の進み側フランクのフランク角よりも小さくされ、かつ前記進み側フランクの少なくとも一部がめねじの対応するねじ溝の進み側フランクよりも外側に配置された第2のゆるみ止め部を有するおねじ部材と着脱可能に締結される前記めねじ部材とを備える、前記<1>または<2>の締結部材。
<4>前記ゆるみ止め部の螺旋方向の両端に、端に向かうにしたがって山の高さが低くされた傾斜部が設けられている、前記<1>~<3>のいずれかの締結部材。
<5>バレルと;前記バレルの第1の端部に締結されたポイントと;前記バレルの第2の端部に締結されたシャフトと;前記シャフトに取り付けられたフライトとを備え;前記ポイントと前記バレル又は前記シャフトと前記バレルが、前記<1>~<4>のいずれかの締結部材である、ダーツ。
ここで、「めねじの対応するねじ山」とは、おねじ部材のねじ軸をめねじ部材に完全にねじ込んだ状態において、おねじ部材の任意のねじ山がそのフランク面を通じて接するめねじのねじ山のことである。おねじ部材1のねじ軸12をめねじ部材3のねじ穴32に完全にねじ込んだ状態である図4においては、おねじ部材1のねじ山であるゆるみ止め部18aに対するめねじ部材3の対応するねじ山とは、ゆるみ止め部18aのフランク面21a又は21bを通じて接するフランク面41aを有するめねじ部材3のねじ山又はフランク面41bを有するめねじ部材3のねじ山である。
一方、「めねじの対応するねじ溝」とは、おねじ部材のねじ軸をめねじ部材に完全にねじ込んだ状態において、おねじ部材の任意のねじ山がそのフランク面を通じて接するめねじのねじ山のフランク面に囲まれた空間にあるねじ溝のことである。おねじ部材1のねじ軸12をめねじ部材3のねじ穴32に完全にねじ込んだ状態である図4においては、おねじ部材1のねじ山であるゆるみ止め部18aに対するめねじ部材3の対応するねじ溝とは、ゆるみ止め部18aのフランク面21a及び21bを通じて接するめねじ部材3のねじ山のフランク面41a及び面41bに囲まれた空間にあるねじ溝である。
図5は、ソフトダーツを分解した様子を示す斜視図である。
ダーツ50は、プレイヤーが指で持つ部分となる金属製のバレル51と、バレル51の第1の端部に締結されるポイント52(ティップ)と、バレル51の第2の端部に締結されるシャフト53と、シャフト53の後半部分に取り付けられるフライト54(矢羽)とから構成される。
ポイント52の後端側には、バレル51の第1のねじ穴55にねじ込まれるねじ軸57が設けられている。
シャフト53の先端側には、バレル51の第2のねじ穴56にねじ込まれるねじ軸58が設けられている。
シャフト53の後半部分には、フライト54が挿入されるスリット59が設けられている。
図6は、本発明のダーツにおけるポイントの一実施形態例を示す側面図である。
本発明のねじ部材であるポイント52は、円錐形のポイント本体60と、ポイント本体60の円錐の底面から突設されたねじ軸12(ねじ軸57)とを有する。
以下、ポイント52において、図1および図2と同じ構成については、同じ符号を付して説明を省略する。
以上説明した本発明の締結部材(ダーツ)にあっては、ゆるみ止め効果を有し、かつ他のねじ部材と締結する際に大きな力が必要とならないねじ部材(ポイント等)を備えたものであるため、ねじ部による締結がゆるみにくく、かつ部材同士を締結する際に大きな力が必要とならない。
本発明の締結部材は、おねじ部材と;おねじ部材と着脱可能に締結されるめねじ部材とを備え、おねじ部材およびめねじ部材のいずれか一方または両方が、本発明のねじ部材であるものであればよい。
本発明のダーツは、ポイント、バレルおよびシャフトのうちの少なくとも1つが、本発明のねじ部材であるものであればよく、図示例のダーツ50に限定されない。
様々な国のメーカーのバレル、すなわち、1)ユニコーン社製のバレル、2)ハローズ社製のバレル、3)ターゲット社製のバレル、4)ウィンマウ社製のバレル、5)ダイナスティー社製のバレル、6)モンスター社製のバレル、7)グリーンルーム社製のバレル、8)ディーエムシー社製のバレル、9)トリニダート社製のバレル、10)プーマ社製のバレルを用意した。
ポイント52を各バレルにねじ込み、締結させた。シャフトおよびフライトを取り付けてダーツとした後、ダーツの投てきを繰り返した。10社のバレルのいずれを用いた場合であっても、ポイント52とバレルとの締結がゆるむことはなかった。
3 めねじ部材
10 部材本体
11 座面
12 ねじ軸
13 円筒
14 分断部
15 ねじ山
15a 連続部
15b 長尺不連続部
15c 短尺不連続部
17 ねじ先
18 ゆるみ止め部
18a 第1のゆるみ止め部
18b 第2のゆるみ止め部
19a 傾斜部
19b 傾斜部
21a 追い側フランク
21b 進み側フランク
22a 追い側フランク
22b 進み側フランク
23 谷底
32 ねじ穴
35 ねじ山
41a 追い側フランク
41b 進み側フランク
50 ダーツ
51 バレル
52 ポイント
53 シャフト
54 フライト
55 第1のねじ穴
56 第2のねじ穴
57 ねじ軸
58 ねじ軸
59 スリット
60 ポイント本体
B 基準山形
α1 フランク角
α2 フランク角
β1 フランク角
β2 フランク角
Claims (6)
- 途中に複数の分断部が形成された不連続な螺旋状のねじ山を有し、
前記分断部に挟まれた前記ねじ山の不連続部の少なくとも一つが、ねじ山の両側のフランクのうち一方のフランクのフランク角が基準山形の対応するフランクのフランク角よりも小さくされ、かつ前記一方のフランクの少なくとも一部が基準山形の対応するフランクよりも外側に配置されたゆるみ止め部である、ねじ部材。 - 前記ねじ山の両側のフランクのうち他方のフランクと基準山形の対応するフランクとの間の全体に隙間が形成されるように、前記他方フランクが基準山形の対応するフランクよりも内側に配置されたゆるみ止め部である、請求項1に記載のねじ部材。
- 前記不連続部の少なくとも一つが、追い側フランクのフランク角が基準山形の追い側フランクのフランク角よりも小さくされ、かつ前記追い側フランクの少なくとも一部が基準山形の追い側フランクよりも外側に配置された第1のゆるみ止め部であり、
前記不連続部の少なくとも一つが、進み側フランクのフランク角が基準山形の進み側フランクのフランク角よりも小さくされ、かつ前記進み側フランクの少なくとも一部が基準山形の進み側フランクよりも外側に配置された第2のゆるみ止め部である、請求項1または2に記載のねじ部材。 - 前記ゆるみ止め部の螺旋方向の両端に、端に向かうにしたがって山の高さが低くされた傾斜部が設けられている、請求項1~3のいずれか一項に記載のねじ部材。
- おねじ部材と、
前記おねじ部材と着脱可能に締結されるめねじ部材とを備え、
前記おねじ部材およびめねじ部材のいずれか一方または両方が、請求項1~4のいずれか一項に記載のねじ部材である、締結部材。 - バレルと、
前記バレルの第1の端部に締結されたポイントと、
前記バレルの第2の端部に締結されたシャフトと、
前記シャフトに取り付けられたフライトとを備え、
前記ポイント、前記バレルおよび前記シャフトのうちの少なくとも1つが、請求項1~4のいずれか一項に記載のねじ部材である、ダーツ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/081,304 US10663270B2 (en) | 2016-03-02 | 2017-02-09 | Threaded member, fastening member, and dart |
EP17759602.0A EP3425218A4 (en) | 2016-03-02 | 2017-02-09 | THREADED ELEMENT, FASTENING ELEMENT AND ARROW |
KR1020187028313A KR102261319B1 (ko) | 2016-03-02 | 2017-02-09 | 나사 부재, 체결 부재 및 다트 |
MYPI2018703048A MY191863A (en) | 2016-03-02 | 2017-02-09 | Threaded member, fastening member, and dart |
CN201780014417.5A CN108884856B (zh) | 2016-03-02 | 2017-02-09 | 螺纹件、紧固件以及飞镖 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016-040439 | 2016-03-02 | ||
JP2016040439A JP5974196B1 (ja) | 2016-03-02 | 2016-03-02 | ねじ部材、締結部材およびダーツ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017150131A1 true WO2017150131A1 (ja) | 2017-09-08 |
Family
ID=56706680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/004804 WO2017150131A1 (ja) | 2016-03-02 | 2017-02-09 | ねじ部材、締結部材およびダーツ |
Country Status (7)
Country | Link |
---|---|
US (1) | US10663270B2 (ja) |
EP (1) | EP3425218A4 (ja) |
JP (1) | JP5974196B1 (ja) |
KR (1) | KR102261319B1 (ja) |
CN (1) | CN108884856B (ja) |
MY (1) | MY191863A (ja) |
WO (1) | WO2017150131A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3623743A1 (en) * | 2018-09-14 | 2020-03-18 | Gravity Brands Limited | Dart point |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7362109B2 (ja) * | 2019-06-17 | 2023-10-17 | 株式会社呉英製作所 | 止水ボルト部材、足場つなぎアンカー用化粧キャップ部材及び足場つなぎアンカー用化粧キャップ部材の組み付け方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5899513U (ja) * | 1981-12-26 | 1983-07-06 | 岸野 誠 | 波形ねじ |
JPH08177839A (ja) * | 1994-12-22 | 1996-07-12 | Nitto Seiko Co Ltd | 緩み防止ねじ |
JP3031085U (ja) * | 1996-05-10 | 1996-11-12 | ユルソン株式会社 | ボルト |
JP2002089758A (ja) * | 2000-09-11 | 2002-03-27 | M H Center:Kk | 緩み止め締結システム |
JP2003113827A (ja) * | 2001-07-06 | 2003-04-18 | Hitachi Metals Ltd | 緩み止め締結構造及びその製造方法 |
JP2010046256A (ja) * | 2008-08-21 | 2010-03-04 | Realix:Kk | ダーツ矢 |
JP2013521441A (ja) * | 2010-02-26 | 2013-06-10 | イリノイ トゥール ワークス インコーポレイティド | 波形ねじ山形状 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5828008A (ja) | 1981-08-11 | 1983-02-18 | 志賀製缶株式会社 | セルフロックねじ部材 |
JPS5899513A (ja) | 1981-08-20 | 1983-06-13 | ユニバ−シテイ−・オブ・ブラツドフオ−ド | 枢着装置 |
JPH0723112Y2 (ja) * | 1989-07-25 | 1995-05-31 | 株式会社アマダ | 熱切断機におけるスパッタ処理装置 |
JPH03103607A (ja) * | 1989-09-13 | 1991-04-30 | Nitto Seiko Co Ltd | スレッドフォーミングねじ |
JP3031085B2 (ja) * | 1992-11-05 | 2000-04-10 | 松下電器産業株式会社 | シーソー操作型電子部品 |
JP2003042130A (ja) | 2001-08-01 | 2003-02-13 | Taisuke Onuki | ねじ部材 |
DE10235817B4 (de) * | 2002-08-05 | 2004-08-05 | Ejot Gmbh & Co. Kg | Selbstfurchende Schraube |
DE10238055B4 (de) * | 2002-08-20 | 2004-10-28 | Ejot Gmbh & Co. Kg | Mit selbstklemmendem Gewinde versehene Schraube |
DE102005008779B3 (de) * | 2005-02-25 | 2006-11-23 | Sfs Intec Holding Ag | Gewindeelement |
WO2007000983A1 (ja) * | 2005-06-28 | 2007-01-04 | Ron Corporation | ダーツチップ,ダーツシャフト,ダーツ |
JP2007289217A (ja) * | 2006-04-20 | 2007-11-08 | Make East:Kk | ダーツ |
US7862280B2 (en) * | 2006-08-26 | 2011-01-04 | Taiwan Shan Yin International Co., Ltd. | Saw tooth screw |
TW200815682A (en) | 2006-09-18 | 2008-04-01 | M & Amp W Fastener Co Ltd | Screw designed for plastic products |
EP2176560B1 (en) * | 2007-08-13 | 2014-10-08 | Research Engineering&Manufacturing, Inc. | Thread locking/prevailing torque fastener and fastener assembly |
BRPI0908030A2 (pt) | 2008-02-20 | 2015-08-04 | Hiroshi Michiwaki | Corpo roscado de extremidade dupla e corpo internamente roscado |
JP5326530B2 (ja) | 2008-12-03 | 2013-10-30 | パナソニック株式会社 | ねじ部品及び撮像装置 |
JP4806103B2 (ja) * | 2009-02-12 | 2011-11-02 | 有限会社アートスクリュー | 締結部材および締結構造 |
JP2011110413A (ja) | 2009-11-26 | 2011-06-09 | Chuyo Seiko Co Ltd | ダーツ |
CN103069179B (zh) * | 2010-02-26 | 2015-02-25 | 艺术螺丝钉有限会社 | 紧固构件及紧固构造 |
JP5793291B2 (ja) | 2010-11-22 | 2015-10-14 | 株式会社トープラ | ゆるみ防止ねじ部品 |
DE102014213610A1 (de) * | 2014-07-14 | 2016-01-14 | Atotech Deutschland Gmbh | Gewindeeinsatz und diesen enthaltendes Bauteil |
-
2016
- 2016-03-02 JP JP2016040439A patent/JP5974196B1/ja active Active
-
2017
- 2017-02-09 MY MYPI2018703048A patent/MY191863A/en unknown
- 2017-02-09 EP EP17759602.0A patent/EP3425218A4/en active Pending
- 2017-02-09 KR KR1020187028313A patent/KR102261319B1/ko active IP Right Grant
- 2017-02-09 CN CN201780014417.5A patent/CN108884856B/zh active Active
- 2017-02-09 US US16/081,304 patent/US10663270B2/en active Active
- 2017-02-09 WO PCT/JP2017/004804 patent/WO2017150131A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5899513U (ja) * | 1981-12-26 | 1983-07-06 | 岸野 誠 | 波形ねじ |
JPH08177839A (ja) * | 1994-12-22 | 1996-07-12 | Nitto Seiko Co Ltd | 緩み防止ねじ |
JP3031085U (ja) * | 1996-05-10 | 1996-11-12 | ユルソン株式会社 | ボルト |
JP2002089758A (ja) * | 2000-09-11 | 2002-03-27 | M H Center:Kk | 緩み止め締結システム |
JP2003113827A (ja) * | 2001-07-06 | 2003-04-18 | Hitachi Metals Ltd | 緩み止め締結構造及びその製造方法 |
JP2010046256A (ja) * | 2008-08-21 | 2010-03-04 | Realix:Kk | ダーツ矢 |
JP2013521441A (ja) * | 2010-02-26 | 2013-06-10 | イリノイ トゥール ワークス インコーポレイティド | 波形ねじ山形状 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3425218A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3623743A1 (en) * | 2018-09-14 | 2020-03-18 | Gravity Brands Limited | Dart point |
Also Published As
Publication number | Publication date |
---|---|
CN108884856A (zh) | 2018-11-23 |
KR102261319B1 (ko) | 2021-06-04 |
CN108884856B (zh) | 2021-01-29 |
JP5974196B1 (ja) | 2016-08-23 |
MY191863A (en) | 2022-07-18 |
JP2017155870A (ja) | 2017-09-07 |
EP3425218A1 (en) | 2019-01-09 |
KR20180118192A (ko) | 2018-10-30 |
EP3425218A4 (en) | 2019-09-11 |
US20190025027A1 (en) | 2019-01-24 |
US10663270B2 (en) | 2020-05-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11009059B2 (en) | Screw | |
JP5793291B2 (ja) | ゆるみ防止ねじ部品 | |
WO2009023166A3 (en) | Thread locking/prevailing torque fastener and fastener assembly | |
WO2017150131A1 (ja) | ねじ部材、締結部材およびダーツ | |
CN107429797B (zh) | 改进的高扭矩传动装置 | |
KR20160065077A (ko) | 볼트 | |
US20120014764A1 (en) | Contaminant-rejecting screw threads | |
US20140377032A1 (en) | Lock washer with two rings of teeth | |
US20070280803A1 (en) | All-metal thread locking/prevailing torque threaded fastener | |
JP2013545058A (ja) | 頭部と軸部と円錐形でコルゲート状のフランジとを有するねじ | |
WO2020166462A1 (ja) | 締結部材 | |
WO2014003041A1 (ja) | タッピンねじ | |
JPWO2015098823A1 (ja) | タッピンねじ | |
US20090175702A1 (en) | High torque transmission fastener and socket therefor | |
JP2011033047A (ja) | ロックナットおよびその締結構造 | |
JP7328906B2 (ja) | おねじ部材 | |
JP6980420B2 (ja) | ボルト | |
CA2967962A1 (en) | Stay tight threaded fasteners | |
JP2010133528A (ja) | 緩み防止ねじ | |
JP2007327535A (ja) | ねじの緩み止め構造 | |
JP6224991B2 (ja) | タッピンねじ | |
US20170321742A1 (en) | Stay tight threaded fasteners | |
JP6512009B2 (ja) | 締結装置 | |
CA2632368C (en) | Quick fastening nut | |
TWM465488U (zh) | 防鬆止滑螺合組件及其螺栓及螺母 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20187028313 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2017759602 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2017759602 Country of ref document: EP Effective date: 20181002 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17759602 Country of ref document: EP Kind code of ref document: A1 |