CN104271967A - Drop-out prevention tool - Google Patents
Drop-out prevention tool Download PDFInfo
- Publication number
- CN104271967A CN104271967A CN201280072707.2A CN201280072707A CN104271967A CN 104271967 A CN104271967 A CN 104271967A CN 201280072707 A CN201280072707 A CN 201280072707A CN 104271967 A CN104271967 A CN 104271967A
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- China
- Prior art keywords
- coil spring
- spring part
- wire rod
- coil wire
- main body
- Prior art date
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- 230000002265 prevention Effects 0.000 title abstract 2
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 230000003068 static effect Effects 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 abstract 2
- 210000002683 foot Anatomy 0.000 description 54
- 238000010586 diagram Methods 0.000 description 23
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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- 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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/20—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of steel wire or the like
-
- 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
- F16B39/38—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 with a second part of the screw-thread which may be resiliently mounted
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
A drop-out prevention tool (1) is provided with a coil spring section (2) and a cylindrical body (3). The coil spring section (2) includes a coil spring section body (2A) around which a coil wire is wound at substantially the same diameter. A coil wire of one end side (2B), which extends from one end of the coil wire of the coil spring section body (2A), is positioned in a circular arc shape concentric with the coil spring section body (2A) at a radius greater than the radius of the coil spring section body (2A). A coil wire of the other end side (2C), which extends from the other end of the coil wire of the coil spring section body (2A), is bent toward the one end of the coil wire of the coil spring section body (2A), along a center axis line of the coil spring section body (2A), at a position outside of the coil spring section body (2A). Formed in the interior of the cylindrical body (3) is a coil spring section body accommodation space (4) in which the coil spring section body (2A) is accommodated coaxially. The cylindrical body (3) has a threaded section (5) formed coaxially with the coil spring section body accommodation space (4).
Description
Technical field
The present invention relates to anti-falling piece.Specifically about the anti-falling piece preventing fixation, nut from bolt falling.
Background technique
When fixation construct, in all spectra, mostly use the locking method formed by screw bolt and nut, such as, from the building of steel structure, steel tower or road, thing is set to automobile or electrical products, can both be widely used.
Such as, in Japanese Unexamined Patent Publication 2001-59514 publication, describe the anti-falling piece shown in Figure 23 (a), anti-falling piece 101 is by having flexible metal or resinous wire rod (plain Line) defines handle portion 102 and coil spring part 103.
Here, the internal diameter of coil spring part 103 is slightly less than the external diameter of the foot of the bolt of installation anti-falling piece 101.
When this anti-falling piece 101 is arranged on the foot of bolt, anti-falling piece 101 is abutted with the front end of the bolt being screwed with nut, and rotate to the direction shown in the reference character A in Figure 23 (b).
Namely, under the state making anti-falling piece 101 abut with the front end of bolt, anti-falling piece 101 is rotated, thus, make the Direction distortion that coil spring part 103 expands to the internal diameter of coil spring part 103, and the wire rod of coil spring part 103 is embedded from the end of the foot of bolt along the thread groove be arranged on foot, and anti-falling piece 101 is arranged on the foot of bolt.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2001-59514 publication
Summary of the invention
The problem that invention will solve
But anti-falling piece in the past must install anti-falling piece after the terminal operation of nut, and flow chart is 2 times, becomes very loaded down with trivial details operation.
In addition, because of the impact from outside, after making nut loosening, only become the surface friction drag produced by plastic deformation, by vibrating for a long time, nut or anti-falling piece also can come off.
The present invention makes in view of the above circumstances, its objective is the anti-falling piece loosened providing and can suppress nut or fixation.
For solving the technological scheme of problem
To achieve these goals, anti-falling piece of the present invention has: coil spring part, it has the coil spring part main body be entwined with roughly same diameter by coil wire rod, and the end side coil wire rod extended from one end of the coil wire rod of this coil spring part main body is positioned at the position becoming concentric circle arcuation with described coil spring part main body with the radius larger than the radius of described coil spring part main body, and, the other end lateral coil wire rod extended from the other end of the coil wire rod of described coil spring part main body is bending towards the end side of the coil wire rod of described coil spring part main body along the central axis of described coil spring part main body in the position in the outside of described coil spring part main body, and cylindrical body, its both ends open, and described coil spring part main body is housed in inside coaxially and described end side coil wire rod is fixed on the end face on top, and, form of the other end lateral coil wire rod space residing for the described the other end lateral coil wire rod distance between internal face and central axis than the distance between other internal face and central axis.
Here, owing to coil spring part main body being housed in inside coaxially and end side coil wire rod being fixed on the end face on the top of cylindrical body, so coil spring part becomes to be integrated on the top of cylindrical body, and when being installed on bolt, by the vibration passing of cylindrical body to coil spring part, coil spring part can be made to right rotation.
In addition, owing to coil spring part main body being housed in inside coaxially and end side coil wire rod being fixed on the end face on the top of cylindrical body, so when making anti-falling piece rotate to the direction that the foot from bolt departs from, to the Direction distortion that the internal diameter of coil spring part main body reduces, the coil wire rod of coil spring part main body is crimped on the thread groove of the foot of bolt and stops the rotation to off-direction.
In addition, one of formation the other end lateral coil wire rod space residing for the other end lateral coil wire rod distance between internal face and central axis than the distance between other internal face and central axis, so can to expanding direction, necking square to movement in the other end lateral coil wire rod space towards the other end lateral coil wire rod that the end side of the coil wire rod of described coil spring part main body is bending along the central axis of coil spring part main body in the position in the outside of coil spring part main body.
In addition, in anti-falling piece of the present invention, cylindrical body has screw section, and it is formed coaxially with the coil spring part main body containing space of accommodating coil spring part main body coaxially, and be formed with thread groove, formed with the internal diameter less than the internal diameter of coil spring part main body containing space.
In this case, nut can be replaced to use cylindrical body.
In addition, in anti-falling piece of the present invention, the front end of the other end lateral coil wire rod is located at position lower than the end face on the top of cylindrical body when being arranged on bolt by anti-falling piece.
In this case, because coil spring part can not protrude into the outside of cylindrical body, so the part of protrusion by mistake can not be hooked into, in addition, the general utility tool that nut uses can also be utilized.
In addition, to achieve these goals, anti-falling piece of the present invention has: coil spring part, it has the coil spring part main body be entwined with roughly same diameter by coil wire rod, and the end side coil wire rod extended from one end of the coil wire rod of this coil spring part main body is positioned at the position becoming concentric circle arcuation with described coil spring part main body with the radius larger than the radius of described coil spring part main body, and, the other end lateral coil wire rod extended from the other end of the coil wire rod of described coil spring part main body in the position in the outside of described coil spring part main body along the central axis of described coil spring part main body towards described end side coil bending wire, cylindrical body, its both ends open, and described coil spring part main body is housed in inside coaxially and fixes described end side coil wire rod at least partially, and, form of the other end lateral coil wire rod space residing for the described the other end lateral coil wire rod distance between internal face and central axis than the distance between other internal face and central axis, push part, it can be arranged on described the other end lateral coil wire rod space removably, and longer than the half along the length in the described the other end lateral coil wire rod space of the circumference of described coil spring part.
Here, the other end lateral coil wire rod space can be arranged on removably, and by the push part longer than the half of the length in the other end lateral coil wire rod space of the circumference along coil spring part, can reliably by the other end lateral coil wire rod to expanding direction, necking square to pushing.
In addition, one of formation the other end lateral coil wire rod space residing for the other end lateral coil wire rod distance between internal face and central axis, thus can to expanding direction, necking square to movement in the other end lateral coil wire rod space to the other end lateral coil wire rod that the end side of the coil wire rod of described coil spring part main body is bending along the central axis of coil spring part main body in the position in the outside of coil spring part main body than the distance between other internal face and central axis.
In addition, end side coil wire rod be fixed in cylindrical body at least partially, thus when making anti-falling piece rotate to the direction that the foot from bolt departs from, to the Direction distortion that the internal diameter of coil spring part main body reduces, the coil wire rod of coil spring part main body is crimped on the thread groove of the foot of bolt and stops the rotation to off-direction.
In addition, in anti-falling piece of the present invention, push part, when being installed in the other end lateral coil wire rod space, another side of the opposition side towards a side of the other end lateral coil wire rod or this side is provided with plane of inclination.
In this case, by plane of inclination, easily push part is inserted the other end lateral coil wire rod space, and easily the other end lateral coil wire rod is pushed to such as expanding direction, its result, becomes light from the operation of Bolt dismantling anti-falling piece, can also realize re-using of anti-falling piece.
In addition, in anti-falling piece of the present invention, push part has: the first recess, when the state contacted with the internal face of cylindrical body with the side of push part is installed in the other end lateral coil wire rod space, chimeric at least partially with the other end lateral coil wire rod, further, the position suitable with such as upper/lower positions is arranged on: the position of the other end lateral coil wire rod when moving to expanding side compared with the position of the static the other end lateral coil wire rod before being installed in the other end lateral coil wire rod space with push part; With the second recess, when the state contacted with the internal face of cylindrical body with the side of push part is installed in the other end lateral coil wire rod space, chimeric at least partially with the other end lateral coil wire rod, further, the position suitable with such as upper/lower positions is arranged on: push part is installed in the position of the static the other end lateral coil wire rod before the other end lateral coil wire rod space.
In this case, when push part being arranged on the other end lateral coil wire rod space, make the other end lateral coil wire rod be embedded in the first recess or the second recess, thus easilier push part is inserted the other end lateral coil wire rod space, and become easily by dismountings such as electric tools.
In addition, in anti-falling piece of the present invention, the inner side surface of the first recess is provided with the plane of inclination that tilts to the expanding direction of coil spring part and above this plane of inclination with substantially vertical of this plane of inclination continuous print.
In addition, in anti-falling piece of the present invention, first recess is arranged on an edge of push part, second recess is arranged on another edge of the opposition side of this edge, and push part has: the rotatable announcement information of shown, that notice coil spring part can rotate along the outer circumferential face of bolt situation on the edge being provided with the push part of the first recess; Be provided with the second recess push part another edge shown by the notice coil spring part situation that can not rotate along the outer circumferential face of bolt can not rotate announcement information.
In addition, in anti-falling piece of the present invention, first recess and the second recess are arranged on the same edge of push part, and push part has: the rotatable announcement information of the situation that shown by the access areas of the first recess in this edge, notice coil spring part can rotate along the outer circumferential face of bolt; With the situation shown in the access areas of the second recess in edge, notice coil spring part can not rotate along the outer circumferential face of bolt can not rotate announcement information.
In these cases, according to rotatable announcement information, worker knows makes being embedded in the first recess at least partially and push part being arranged on the other end lateral coil wire rod space of the other end lateral coil wire rod, thus, the coil spring part of anti-falling piece can rotate to the left and right along the outer circumferential face of the foot of bolt, and anti-falling piece becomes the state of disassembled and assembled freely.
In addition, according to not rotating announcement information, worker knows makes being embedded in the second recess at least partially and push part being arranged on the other end lateral coil wire rod space of the other end lateral coil wire rod, thus, the coil spring part of anti-falling piece can not rotate along the outer circumferential face of the foot of bolt, and anti-falling piece becomes fixing state.
In addition, in anti-falling piece of the present invention, the front end of the other end lateral coil wire rod is outstanding and roughly vertically down to bend from the opening portion of the end face on the top of cylindrical body, and is positioned at the outside of cylindrical body.
In this case, the front end of instrument, hand push pressure the other end lateral coil wire rod can easily be passed through.
In addition, to achieve these goals, anti-falling piece of the present invention has coil spring part and cylindrical body, described cylindrical body fixes the upper end of this coil spring part, and, be formed with opening portion, the lower end of coil spring part described in this opening portion mooring, described anti-falling piece and screw threaded are fixed (spiral shell), described coil spring part adopts the internal diameter less than the external diameter of the foot of described bolt, the lower end of this coil spring part is tethered in described cylindrical body under expanding state, and the lower end of this coil spring part can be made to move to expanding direction.
Here, the lower end being inserted into the coil spring part in cylindrical body is by mooring under expanding state, thus coil spring part easily embeds the thread groove be formed in the foot of bolt, can easily screw togather fixing anti-falling piece.
In addition, when making cylindrical body rotate to off-direction (loosening direction), because the upper end of coil spring part is fixed on cylindrical body, so the Direction distortion reduced to the internal diameter of coil spring part, the wire rod of coil spring part is crimped on thread groove and stops the rotation to off-direction.
And, when pulling down anti-falling piece from bolt, the lower end of coil spring part is moved to expanding direction, the Direction distortion that the internal diameter to coil spring part expands, thereby, it is possible to easily pull down anti-falling piece.
In addition, to achieve these goals, anti-falling piece of the present invention has coil spring part and cylindrical body, described cylindrical body fixes the upper end of this coil spring part, and, there is the coil spring insertion part defining opening portion and the screw section defining thread groove, the lower end of coil spring part described in this opening portion mooring, described anti-falling piece and screw threaded are fixed, described coil spring part adopts the internal diameter less than the external diameter of the foot of described bolt, the lower end of this coil spring part under expanding state by mooring in described coil spring insertion part, and the lower end of this coil spring part can be made to move to expanding direction.
The lower end of coil spring part is tethered in cylindrical body under expanding state, thus coil spring part easily embeds the thread groove be formed in the foot of bolt, can easily screw togather fixing anti-falling piece.
When making cylindrical body rotate to off-direction (loosening direction), the upper end of coil spring part is fixed in cylindrical body, thus to the Direction distortion that the internal diameter of coil spring part reduces, the wire rod of coil spring part is crimped on thread groove and stops the rotation to off-direction.
And, when from Bolt dismantling anti-falling piece, by general utility tool etc., the lower end of coil spring part is moved to expanding direction, by the Direction distortion expanded to the internal diameter of coil spring part, easily can pull down anti-falling piece.
The effect of invention
Anti-falling piece of the present invention can suppress loosening of nut, fixation.
Accompanying drawing explanation
Fig. 1 is summary exploded view (a) of anti-falling piece and the schematic cross sectional view (b) of cylindrical body that represent the first mode of execution of the present invention.
Fig. 2 is the summary stereogram of the anti-falling piece representing the first mode of execution of the present invention.
Fig. 3 is the schematic top view of the anti-falling piece representing the first mode of execution of the present invention.
Fig. 4 is the state that the anti-falling piece representing the first mode of execution of the present invention making to be installed on bolt becomes disassembled and assembled freely, push part is inserted the synoptic diagram of the situation in the other end lateral coil wire rod space.
Fig. 5 represents to make the anti-falling piece of the first mode of execution of the present invention be arranged on bolt become fixing state, push part is inserted the synoptic diagram of the situation in the other end lateral coil wire rod space.
Fig. 6 is the synoptic diagram of the variform state of the other end lateral coil wire rod of the anti-falling piece representing the first mode of execution of the present invention.
Fig. 7 is the synoptic diagram of the example representing the push part that the anti-falling piece of the first mode of execution of the present invention has.
Fig. 8 is the synoptic diagram of other examples representing the push part that the anti-falling piece of the first mode of execution of the present invention has.
Fig. 9 is the summary stereogram of the anti-falling piece representing the second mode of execution of the present invention.
Figure 10 is the cross section explanatory drawing of the structure of the coil wire rod of anti-falling piece for illustration of the second mode of execution of the present invention.
Figure 11 is the synoptic diagram of the installation of anti-falling piece for illustration of the second mode of execution of the present invention.
Figure 12 is the fastening (Parties Knot of the anti-falling piece for illustration of the second mode of execution of the present invention) synoptic diagram of state.
Figure 13 is the synoptic diagram of the disassembly status of anti-falling piece for illustration of the second mode of execution of the present invention.
Figure 14 is the synoptic diagram of the state by the fastening anti-falling piece of general utility tool for illustration of the second mode of execution of the present invention.
Figure 15 is the synoptic diagram of the state by general utility tool dismounting anti-falling piece for illustration of the second mode of execution of the present invention.
Figure 16 is the summary stereogram of the anti-falling piece representing the 3rd mode of execution of the present invention.
Figure 17 is the cross section explanatory drawing of the structure of the coil wire rod of anti-falling piece for illustration of the 3rd mode of execution of the present invention.
Figure 18 is the synoptic diagram of the installation of anti-falling piece for illustration of the 3rd mode of execution of the present invention.
Figure 19 is the synoptic diagram of the tightening state of anti-falling piece for illustration of the 3rd mode of execution of the present invention.
Figure 20 is the synoptic diagram of the disassembly status of anti-falling piece for illustration of the 3rd mode of execution of the present invention.
Figure 21 is the synoptic diagram of the state by the fastening anti-falling piece of general utility tool for illustration of the 3rd mode of execution of the present invention.
Figure 22 is the synoptic diagram of the state by general utility tool dismounting anti-falling piece for illustration of the 3rd mode of execution of the present invention.
Figure 23 is the synoptic diagram for illustration of anti-falling piece in the past.
Embodiment
Below, to embodiments of the present invention, with reference to accompanying drawing while be described, for understanding the present invention.
Fig. 1 is summary exploded view (a) of anti-falling piece and the schematic cross sectional view (b) of cylindrical body that represent the first mode of execution of the present invention.In addition, Fig. 2 is the summary stereogram of the anti-falling piece representing the first mode of execution of the present invention.In addition, Fig. 3 is the schematic top view of the anti-falling piece representing the first mode of execution of the present invention.
As shown in Fig. 1 (a), the anti-falling piece 1 of the first mode of execution of the present invention has coil spring part 2 and cylindrical body 3.
In addition, coil spring part 2 has the coil spring part main body 2A being wound with coil wire rod with roughly same diameter.Here, coil spring part main body 2A is formed with the diameter that the external diameter of the foot than bolt is slightly little.
In addition, in coil spring part 2, the end side coil wire rod 2B extended from one end of the coil wire rod of coil spring part main body 2A is arranged on the position becoming concentric circle arcuation with coil spring part main body 2A with the radius larger than the radius of coil spring part main body 2A.
In addition, in coil spring part 2, the other end lateral coil wire rod 2C extended from the other end of the coil wire rod of coil spring part main body 2A is bending towards the end side of the coil wire rod of coil spring part main body 2A along the central axis of coil spring part main body 2A in the position in the outside of coil spring part main body 2A.
In addition, the front end of the other end lateral coil wire rod 2C is outstanding and roughly vertically down to bend from the opening portion of the end face on the top of cylindrical body 3, and is positioned at the outside of cylindrical body 3.
In addition, the both ends open of cylindrical body 3, and there is hexagonal shape.
In addition, as shown in the sectional view of the A-A line along Fig. 1 (a) and Fig. 1 (b), be formed with the coil spring part main body containing space 4 of accommodating coil spring part main body 2A coaxially in the inside of cylindrical body 3.
In addition, the internal diameter of the coil spring part main body containing space 4 of cylindrical body 3 is larger than the external diameter of the foot of bolt.In addition, the internal diameter of the coil spring part main body containing space 4 of cylindrical body 3 is larger than the external diameter of coil spring part main body 2A, therefore when coil spring part main body 2A is accommodated in coil spring part main body containing space 4, gap is formed between coil spring part main body 2A and the internal face of coil spring part main body containing space 4, in the inside of cylindrical body 3, coil spring part main body 2A can be expanding.
In addition, as shown in Fig. 1 (b), cylindrical body 3 and coil spring part main body containing space 4 are formed coaxially, and there is screw section 5, this screw section 5 is formed with thread groove, and, formed by the internal diameter less than the internal diameter of coil spring part main body containing space 4.
In addition, coil spring part main body 2A is accommodated in the coil spring part main body containing space 4 of cylindrical body 3 coaxially, at one end lateral coil wire rod 2B is arranged in the fixed area 6 of the end face on the top of cylindrical body 3, utilizes joint filling parts (か め portion material) 7 joint fillings and fixes.
Namely, the radius of the end side coil wire rod 2B of arc-shaped be from the central axis of the central axis of coil spring part main body 2A and cylindrical body 3 to end side coil wire rod 2B distance, than the distance the internal face from the central axis of cylindrical body 3 to cylindrical body 3.
In addition, the curvature of the end side coil wire rod 2B of arc-shaped is roughly the same with the curvature of the internal face of cylindrical body 3.
Therefore, end side coil wire rod 2B reaches the end face on the top of cylindrical body 3, and the circular shape of end side coil wire rod 2B conforms to the shape of the end face on the top of cylindrical body 3, end side coil wire rod 2B can be fixed on fixed area 6 wire rod.
In addition, in cylindrical body 3, the formation the other end lateral coil wire rod residing for the other end lateral coil wire rod 2C is longer than the distance R between another internal face and central axis with one of space 8 distance R ' between internal face and central axis.
Fig. 4 represents the state making the anti-falling piece of the first mode of execution of the present invention be arranged on bolt become disassembled and assembled freely, push part is inserted the synoptic diagram of the situation in the other end lateral coil wire rod space.
In addition, Fig. 5 represents to make the anti-falling piece of the first mode of execution of the present invention be arranged on bolt become fixing state, push part is inserted the synoptic diagram of the situation in the other end lateral coil wire rod space.
As shown in Figure 4, in order to fixing fixation 13, anti-falling piece 1 of the present invention is made to be arranged on the foot 11 of bolt 10 to right rotation.In addition, when making anti-falling piece 1 depart from from the foot 11 of bolt 10, make coil spring part 2 expanding and to anticlockwise.
In addition, as shown in Figure 4, the anti-falling piece 1 of the first mode of execution of the present invention can be arranged on the other end lateral coil wire rod space 8 removably, and the push part 9 that the half (L/2) with the length L in the other end lateral coil wire rod space 8 than the circumference along coil spring part 2 is long.
In addition, as shown in Figure 4, push part 9 is provided with plane of inclination 9A when being installed in the other end lateral coil wire rod space 8 on a side towards the other end lateral coil wire rod 2C.
And, because push part 9 is longer by the half (L/2) of the length in space 8 than the other end lateral coil wire rod along the circumference of coil spring part 2, so mounted (insertion) is when the other end lateral coil wire rod is with space 8, in the example shown in Figure 4, the other end lateral coil wire rod 2C is pushed to expanding direction 12.
Now, because the other end lateral coil wire rod 2C pushes to expanding direction 12 by push part 9 all the time, so and surface friction drag between the thread groove of the foot of bolt alleviated, anti-falling piece 1 can be made to right rotation or to anticlockwise.That is, the state of foot 11 disassembled and assembled freely relative to bolt 10 can be become.
In addition, as shown in Figure 5, push part 9 is provided with plane of inclination when being installed in the other end lateral coil wire rod space 8 on another side of the opposition side of a side towards the other end lateral coil wire rod 2C.
And, because push part 9 is longer by the half (L/2) of the length in space 8 than the other end lateral coil wire rod along the circumference of coil spring part 2, so mounted (insertion) is when the other end lateral coil wire rod is with space 8, in the example as shown in fig. 5, the other end lateral coil wire rod 2C is pushed to necking square to 14.
Now because push part 9 all the time by the other end lateral coil wire rod 2C to necking square to 14 pushings, so the coil wire rod of coil spring part main body 2A is pressed against the thread groove of the foot of bolt, anti-falling piece 1 can not can not to anticlockwise to right rotation.That is, the state fixing relative to the foot 11 of bolt 10 is become.
Fig. 6 is the synoptic diagram of the variform state of the other end lateral coil wire rod of the anti-falling piece representing the first mode of execution of the present invention.
The front end of the other end lateral coil wire rod 2C not necessarily must be outstanding and roughly vertically down to bend from the opening portion of the end face on the top of cylindrical body 3, and also can not be positioned at the outside of cylindrical body 3, as shown in Figure 6, roughly vertically extend upward, when anti-falling piece 1 is installed on bolt 14, the position lower than the end face on the top of cylindrical body 3 can be positioned at.
Fig. 7 is the synoptic diagram of the example representing the push part that the anti-falling piece of the first mode of execution of the present invention has.Here, Fig. 7 (a) represents the rotatable announcement information i.e. synoptic diagram of the push part of the word state upward of " RELEASE ", and Fig. 7 (b) represents to rotate the announcement information i.e. synoptic diagram of the push part of the word state upward of " LOCK ".
As shown in Figure 7, push part 9 has the first recess 15 and the second recess 16.
In addition, first recess 15, when push part 9 to be arranged on the other end lateral coil wire rod space 8 by the state contacted with the internal face of cylindrical body 3 with the side of push part 9, chimeric at least partially with the other end lateral coil wire rod 2C, further, the position suitable with such as upper/lower positions is arranged on: the position of the other end lateral coil wire rod 2C when coil spring part 2 moves to expanding side compared with the position of the static the other end lateral coil wire rod 2C before being installed in the other end lateral coil wire rod space 8 with push part 9.
In addition, the inner side surface of the first recess 15 is provided with the plane of inclination 9A that tilts to the expanding direction of coil spring part 2 and above the 9A of plane of inclination with substantially vertical of plane of inclination 9A continuous print.
In addition, the edge of push part 9 being provided with the first recess 15 shows the rotatable announcement information (" RELEASE ") 17 notifying the situation that coil spring part 2 can rotate along the outer circumferential face of the foot 11 of bolt 10.
In addition, second recess 16, when push part 9 to be arranged on the other end lateral coil wire rod space 8 by the state contacted with the internal face of cylindrical body 3 with the side of push part 9, chimeric at least partially with the other end lateral coil wire rod 2C, further, the position suitable with such as upper/lower positions is arranged on: push part 9 is installed in the position of the static the other end lateral coil wire rod 2C before the other end lateral coil wire rod space 8.
In addition, another edge of push part 9 being provided with the second recess 16 shows notify situation that coil spring part 2 can not rotate along the outer circumferential face of the foot 11 of bolt 10 can not rotate announcement information (" LOCK ") 18.
The edge of push part 9 being provided with the first recess 15 shows rotatable announcement information (" RELEASE ") 17, thus worker makes being fitted to the first recess 15 at least partially and push part 9 being arranged on the other end lateral coil wire rod space 8 of the other end lateral coil wire rod 2C, it can thus be appreciated that, the coil spring part 2 of anti-falling piece 1 can along the outer circumferential face left rotation and right rotation of the foot 11 of bolt 10, and anti-falling piece 1 becomes the state of disassembled and assembled freely.
In addition, on the contrary, another edge of push part 9 being provided with the second recess 16 shows and can not rotate announcement information (" LOCK ") 18, thus worker makes the chimeric with the second recess 16 at least partially of the other end lateral coil wire rod 2C and push part 9 is arranged on the other end lateral coil wire rod space 8, it can thus be appreciated that, the coil spring part 2 of anti-falling piece 1 can not rotate along the outer circumferential face of the foot 11 of bolt 10, and anti-falling piece 1 becomes fixing state.
Namely, first recess 15 is arranged on the position suitable with such as upper/lower positions: the position of the other end lateral coil wire rod 2C when coil spring part 2 moves to expanding side compared with the position of the static the other end lateral coil wire rod 2C before being installed in the other end lateral coil wire rod space 8 with push part 9, thus in order to make, the other end lateral coil wire rod 2C's is chimeric with the first recess 15 at least partially, the other end lateral coil wire rod 2C is moved to expanding direction, and, the side of push part 9 contacts with the internal face of cylindrical body 3, thus the other end lateral coil wire rod 2C suppresses because elastic force pressure will be pushed parts 9 to necking square to the movement returned, its result, the state that coil spring part 2 is expanding can be maintained.
In addition, second recess 16 is arranged on the position suitable with such as upper/lower positions: push part 9 is installed in the position of the static the other end lateral coil wire rod 2C before the other end lateral coil wire rod space 8, and the side of push part 9 contacts with the internal face of cylindrical body 3, if thus make that the other end lateral coil wire rod 2C's is chimeric with the second recess 16 at least partially, the other end lateral coil spring wire 2C just can not move to expanding direction, even if the other end lateral coil wire rod 2C is by necking square to pushing, the coil wire rod of coil spring part main body 2A is pressed against the thread groove of the foot of bolt, anti-falling piece 1 can not can not to anticlockwise to right rotation.
In addition, Fig. 8 is the synoptic diagram of other examples representing the push part that the anti-falling piece of the first mode of execution of the present invention has.
In the example shown in Fig. 8, the first recess 15 and the second recess 16 are arranged on the same edge of push part 9.
In addition, i.e. " R " access areas of the first recess 15 in the edge of push part 9, show rotatable announcement information, the access areas of the second recess 16 in the edge of push part 9, shows can not rotate announcement information i.e. " L ".
In addition, the material of push part 9 also can be arbitrary, if but the push part of such as rubber, then compared with metal push part, more difficultly to be extruded by coil wire rod.
Above, in anti-falling piece of the present invention, coil spring part main body is housed in inside coaxially, end side coil wire rod is fixed on the end face on the top of cylindrical body, thus coil spring part becomes to be integrated on the top of cylindrical body, and when being installed on bolt, the vibration of cylindrical body is passed to coil spring part, coil spring part can be made namely to rotate to fastening direction to right rotation.
Therefore, anti-falling piece of the present invention can suppress loosening of nut, fixation.
In addition, anti-falling piece of the present invention can be installed in the other end lateral coil wire rod space removably, and by the push part longer than the half of the length in the other end lateral coil wire rod space of the circumference along coil spring part, can reliably by the other end lateral coil wire rod to expanding direction, necking square to pushing.
Therefore, anti-falling piece of the present invention by push part by the other end lateral coil wire rod to necking square to pushing, and can suppress nut, fixation loosen.
Fig. 9 is the summary stereogram of the anti-falling piece representing the second mode of execution of the present invention, and Figure 10 is the cross section explanatory drawing of the structure of the coil wire rod of anti-falling piece for illustration of the second mode of execution of the present invention.
Here the anti-falling piece 21 shown in is made up of cylindrical body 22 and the coil spring part 23 be inserted in this cylindrical body 22.
Here, coil spring part 23 is deasil wound from underpart to upper end portion, and is formed with the diameter that the external diameter of the foot than bolt is slightly little.And upper end 24 and the lower end 25 of coil spring part 23 are formed laterally bendingly.
In addition, the internal diameter of cylindrical body 22 is larger than the external diameter of the foot of bolt, and when being inserted in cylindrical body 22 by coil spring part 23, between the external diameter and the internal diameter of cylindrical body 22 of coil spring part 23, forms gap, in cylindrical body 22, coil spring part 23 can be expanding.
In addition, the upper end 24 of coil spring part 23 is inserted in the fixing hole 26 on the top being located in cylindrical body 22 and is fixed on cylindrical body 22.And the lower end of coil spring part 23 is tethered in the opening portion 27 of the bottom being opened in cylindrical body 22 with the state that the underpart of coil spring part 23 is expanding.
In addition, the fixing consideration of the upper end of coil spring part 23 adopt bonding, weld or make front end outstanding and bend various methods such as engaging outside cylindrical body.
In addition, the circumference along cylindrical body 22 offers opening portion 27, is tethered in its left-hand end with the state that the lower end of coil spring part 23 is expanding, and under the fastening state completed of anti-falling piece 21, the lower end of coil spring part 23 to the right side is moved.
In addition, the above-below direction along the periphery wall of cylindrical body 22 is formed with jut 28, and this jut 28 embeds the socket wrench of 12 jiaos, the bight (not shown) of Double head double offset ring spanner and anti-falling piece can be made to rotate.
In addition, be positioned at the circumcircle of cylindrical body from the front position of the outstanding coil spring part 23 of opening portion 27, the rectangular shape ground, front end of coil spring part is bent downwards.
In addition, the front end of coil spring part 23 bends downwards in the present embodiment, as long as but the structure that reliably can be rotated to the direction that mooring is dismantled by general utility tool, can be arbitrary form.
Here, when anti-falling piece is arranged on bolt, as shown in Figure 11 (a) and Figure 11 (b), by the front end of the foot 30 of the lower end stud bolt 29 by cylindrical body 22, the thread groove of the wire rod of the lower end of the coil spring part 23 be inserted in cylindrical body 22 and the foot 30 of bolt 29 can be made to screw togather.And make cylindrical body 22 (fastening direction) rotation clockwise from this state, thus, to the Direction distortion of the internal diameter of expansion coil spring part 23, and the thread groove along the foot 30 of bolt 29 embeds the wire rod of coil spring part 23.Now, embedding the wire rod of thread groove becomes and slightly floats (floating I mood taste), and the frictional force between coil spring part 23 and foot alleviates, and cylindrical body 22 can be made to rotate swimmingly.
Then, as shown in Figure 12 (a) and Figure 12 (b), rotate cylindrical body until the lower end of cylindrical body 22 is connected to the upper surface of fastened nut 31, terminate fastening.Now, the front end of the lower end of coil spring part 23 is moved to the right-hand member of opening portion 27.
Here, when making cylindrical body 22 rotate to off-direction (disassembly direction), the direction that coil spring part 23 shrinks to its internal diameter is stretched, the wire rod of coil spring part 23 is pressed against more strongly the inclined-plane of the thread groove be formed in the foot of bolt, thus the rotation of cylindrical body is prevented from.
In addition, in the present embodiment, to rotate cylindrical body until the lower end of cylindrical body abuts with the upper surface of nut and carries out fastening situation and be illustrated, even if but when the lower end of cylindrical body does not abut with the upper surface of nut, as long as the front end of coil spring part lower end is moved to the right-hand member of opening portion, just can carry out fastening fully.That is, in the example that have employed anti-falling piece of the present invention, even if be subject to vibration, impact after fastening, exerted all one's strength by coil spring part and act on fastening direction, can carry out fastening fully yet, the lower end of cylindrical body does not need necessarily to abut with the upper surface of nut.
But, when for pulling down anti-falling piece from bolt, as shown in Figure 13 (a) and Figure 13 (b), under the state of lower end having held coil spring part 23, rotating force is applied to off-direction (opposite direction of fastening direction), thus, the Direction distortion that coil spring part expands to its internal diameter, pass through the rotating force of applied off-direction, to be formed in the thread groove in the foot of bolt embedded wire rod to become and slightly float, frictional force between coil spring part and foot is alleviated, can rotate to the direction that comes off swimmingly, anti-falling piece can be pulled down from bolt.
Below, an example of the process of the anti-falling piece implemented by general utility tool is described.
When installing anti-falling piece by general utility tool, first, as shown in Figure 14 (a) and Figure 14 (b), by the front end of the foot 30 of the lower end stud bolt 29 of cylindrical body 22.And, the fastened tools 32 such as the Double head double offset ring spanner of 12 jiaos, socket wrench are embedded cylindrical body 22.In addition, in this case, the jut 28 of cylindrical body 22 is formed in such as 180 degree of positions relative to the central axis of cylindrical body 22, thus, embed the mooring of fastened tools 32 internal surface with in bight 33, and by mooring under the state of the lower surface of the locking fastened tools 32 in lower end by coil spring part 23 outstanding in the opening portion 27 from the bottom being opened in cylindrical body 22.
Then, by fastened tools 32, cylindrical body 22 is rotated to fastening direction from this state, thus anti-falling piece is arranged on bolt.In addition, at the end of installation, the lower end of coil spring part 23 is positioned at the right-hand member of opening portion 27, is namely positioned at the central position between jut 28.
On the other hand, when pulling down anti-falling piece by general utility tool, first, as shown in Figure 15 (a) and Figure 15 (b), fastened tools 32 is embedded cylindrical body 22.Here, lower end in order to the coil spring part 23 making the anti-falling piece be mounted is positioned at the central position between jut 28, namely, in order to the state making the lower end of coil spring part 23 become outstanding in opening portion 27 with the angle of 90 degree from the central axis between jut 28, in the mooring bight 33 of lower end embedding fastened tools 32 internal surface of coil spring part 23 and 3 positions of locking jut 28 and coil spring part 23.
Then, by fastened tools 32, cylindrical body 22 is rotated to off-direction (direction of pulling down) from this state, thus, pull down anti-falling piece from bolt.In addition, the lower end of coil spring part 23 is released ground to off-direction (opposite direction of fastening direction) and is rotated under the state locking by fastened tools 32, the Direction distortion that coil spring part expands to its internal diameter, to be formed in the thread groove in the foot of bolt embedded wire rod to become and slightly float, thus the frictional force between coil spring part and foot is alleviated, can rotate to the direction that comes off swimmingly.
In addition, in the present embodiment, the jut be arranged on the outer circumferential face of cylindrical body does not necessarily arrange the necessity of two, as long as be arranged on the structure of the position in the embedding mooring bight of fastened tools internal surface, can arrange any number yet.
Figure 16 is the summary stereogram of the anti-falling piece representing the 3rd mode of execution of the present invention, and Figure 17 is the cross section explanatory drawing of the structure of the coil wire rod of anti-falling piece for illustration of the 3rd mode of execution of the present invention.
Here the lock nut (example of anti-falling piece) 39 shown in is formed by with lower component: screw section 35, from the lower end in this hole portion 34 towards upper end until formed halfway; Nut main body (example of cylindrical body) 37, the upper end from the terminal of this screw section 35 to hole portion 34 becomes coil spring insertion part 36; With coil spring part 23.
Here, the internal diameter of the coil spring insertion part 36 of nut main body 37 is larger than the external diameter of coil spring part 23.And, be equipped with fixing hole 26 in the upper end 24 of coil spring insertion part 36, and offer opening portion 27 in the lower end of coil spring insertion part 36.
In addition, coil spring part 23 is wound from underpart clockwise towards upper end portion, and is formed with the diameter that the external diameter of the foot than bolt is slightly little.And upper end 24 and the lower end 25 of coil spring part 23 are formed laterally bendingly.
In addition, coil spring part 23 is inserted in the coil spring insertion part 36 of nut main body 37, the upper end 24 of coil spring part 23 is interted and to fix in fixing hole 26, and, the lower end 25 of coil spring part 23 is tethered in opening portion 27 with expanding state.Therefore, between the external diameter and the internal diameter of coil spring insertion part 36 of coil spring part 23, form gap, in coil spring insertion part 36, coil spring part 23 can be expanding.
In addition, circumference along cylindrical body 22 offers opening portion 27, the lower end of coil spring part 23 is tethered in its left-hand end with expanding state, under the fastening state completed of anti-falling piece 21, the lower end of coil spring part 23 to the right side is moved, and the mode becoming the middle position of nut main body 37 with the lower end of coil spring part 23 forms the right-hand member of opening portion 27.
In addition, be formed as being positioned at the excircle of nut main body 37 from the front position of the outstanding coil spring part 23 of opening portion 27, and the rectangular shape ground, front end of coil spring part is bent downwards.
In addition, the front end of coil spring part 23 bends downwards in the present embodiment, as long as but the structure that reliably can be rotated to the direction of pulling down by general utility tool mooring, also can be any form.
Here, when installing lock nut, as shown in Figure 18 (a) and Figure 18 (b), by foot 30 front end of the lower end stud bolt 29 of nut main body 37, thus, the thread groove of the worm tooth of the front end of the foot 30 of bolt 29 and the screw section 35 of nut main body 37 is made to screw togather.And by being rotated to fastening direction by nut main body 37, the front end of foot 30 thread groove from the lower end of coil spring part 23 along the foot 30 of bolt 29 makes the wire rod of coil spring part 23 embed.In addition, from this state to the Direction distortion of the internal diameter of expansion coil spring part 23, and, nut main body 37 is rotated, and thus, embedding the wire rod of thread groove becomes and slightly floats, frictional force between coil spring part 23 and foot is alleviated, and nut main body 37 can be made to rotate swimmingly.
Then, as shown in Figure 19 (a) and Figure 19 (b), cylindrical body is rotated until the lower end of nut main body 37 abuts with the upper surface of fixation 38 and terminates fastening.Now, the front end of coil spring part 23 lower end is moved to the right-hand member of opening portion 27.
In addition, in the present embodiment, rotate until the lower end of nut main body to abut with the upper surface of fixation and carries out fastening situation and be illustrated to make fixation, even if but when the lower end of nut does not abut with the upper surface of fixation, as long as the front end of coil spring part lower end is moved to the right-hand member of opening portion, also can carry out fastening fully.Namely, in the example that have employed lock nut of the present invention, even if be subject to vibration, impact after fastening, also exerted all one's strength by coil spring part and act on fastening direction, can carry out fastening fully, the lower end of nut main body does not need necessarily to abut with the upper surface of fixation.
Here, when making nut main body 37 rotate to disassembly direction, the direction that coil spring part 23 shrinks to its internal diameter is stretched, and the wire rod of coil spring part 23 is pressed against more strongly the inclined-plane of the thread groove be formed in the foot of bolt, rotation is prevented from.
But, when pulling down lock nut from bolt, as shown in Figure 20 (a) and Figure 20 (b), under the state of lower end having held coil spring part 23, to off-direction (opposite direction of fastening direction), rotating force is applied to nut main body 37, thus, the Direction distortion that coil spring part 23 expands to its internal diameter, the wire rod being embedded the thread groove be formed in the foot of bolt by the rotating force of off-direction that is applied in is become and slightly floats, frictional force between coil spring part 23 and foot 30 is alleviated, can rotate to the direction that comes off swimmingly, and lock nut can be pulled down from bolt.
Below, be described by the example of general utility tool to the process of lock nut.
When installing lock nut by general utility tool, first, as shown in Figure 21 (a) and Figure 21 (b), the screw section 35 of nut main body 37 is screwed on the front end of the foot 30 of bolt 29.And, by fastened tools 32 insert nut main bodys 37 such as the Double head double offset ring spanner of 12 jiaos, socket wrenchs.In addition, in this case, the bight of nut main body 37 embeds the mooring of the internal surface of fastened tools 32 with in bight 33, by from be opened in the coil spring part 23 given prominence in the opening portion 27 of the bottom of nut main body 37 the locking fastened tools 32 in lower end lower surface state by mooring.
Then, by fastened tools 32, nut main body 37 is rotated to fastening direction from this state, thus, lock nut is arranged on bolt.In addition, at the end of installation, the lower end of coil spring part 23 is positioned at the right-hand member of opening portion 27, is namely positioned at the middle position of nut main body 37.
On the other hand, when pulling down lock nut by general utility tool, first, as shown in Figure 22 (a) and Figure 22 (b), by fastened tools 32 insert nut main body.Here, lower end in order to the coil spring part 23 making the lock nut be mounted becomes the state outstanding in opening portion 27 with the angle of 90 degree from the center on one side of nut main body 37, in the mooring bight 33 that the lower end of coil spring part 23 embeds the internal surface of fastened tools 32 and locking coil spring part 23.
Then, by fastened tools 32, nut main body 37 is rotated from this state to the direction of pulling down, thus, the lower end of coil spring part 23 rotates to the opposite direction of fastening direction under the state locking by fastened tools 32 with being pushed out, its result, due to the Direction distortion that coil spring part expands to its internal diameter, slightly float so the wire rod embedded by being formed in the thread groove in the foot of bolt becomes, frictional force between coil spring part and foot is alleviated, and can rotate to the direction that comes off swimmingly.
In addition, have employed in anti-falling piece of the present invention and lock nut, only clockwise situation is described in detail, but nut also can adopt anticlockwise structure, in this case, to wrapped anti-clockwise coil spring part, and along from right side circumference direction to the left offer opening portion.
The explanation of reference character
1 anti-falling piece
2 coil spring parts
2A coil spring part main body
2B end side coil wire rod
2C the other end lateral coil wire rod
3 cylindrical body
4 coil spring part main body containing spaces
5 screw sections
6 fixed area
7 joint filling parts
8 the other end lateral coil wire rod spaces
9 push part
9A plane of inclination
10 bolts
11 foots
12 expanding directions
13 fixations
14 necking squares to
15 first recesses
16 second recesses
17 rotate possibility announcement information
18 rotations can not announcement information
21 anti-falling pieces
22 cylindrical body
23 coil spring parts
24 upper ends
25 lower ends
26 fixing hole
27 opening portions
28 juts
29 bolts
30 foots
31 nuts
32 fastened tools
33 mooring bights
34 holes portion
35 screw sections
36 coil spring insertion parts
37 nut main bodies
38 fixations
39 lock nuts.
Claims (14)
1. an anti-falling piece, is characterized in that, has:
Coil spring part, it has the coil spring part main body be entwined with roughly same diameter by coil wire rod, and the end side coil wire rod extended from one end of the coil wire rod of this coil spring part main body is positioned at the position becoming concentric circle arcuation with described coil spring part main body with the radius larger than the radius of described coil spring part main body, and, the other end lateral coil wire rod extended from the other end of the coil wire rod of described coil spring part main body is bending towards the end side of the coil wire rod of described coil spring part main body along the central axis of described coil spring part main body in the position in the outside of described coil spring part main body, with
Cylindrical body, its both ends open, and described coil spring part main body is housed in inside coaxially and described end side coil wire rod is fixed on the end face on top, and, form of the other end lateral coil wire rod space residing for the described the other end lateral coil wire rod distance between internal face and central axis than the distance between other internal face and central axis.
2. anti-falling piece as claimed in claim 1, it is characterized in that, described cylindrical body has screw section, it is formed coaxially with the coil spring part main body containing space of accommodating described coil spring part main body coaxially, and be formed with thread groove, formed with the internal diameter less than the internal diameter of described coil spring part main body containing space.
3. anti-falling piece as claimed in claim 1, it is characterized in that, the front end of described the other end lateral coil wire rod is located at position lower than the end face on the top of described cylindrical body when being arranged on bolt by described anti-falling piece.
4. an anti-falling piece, is characterized in that, has:
Coil spring part, it has the coil spring part main body be entwined with roughly same diameter by coil wire rod, and the end side coil wire rod extended from one end of the coil wire rod of this coil spring part main body is positioned at the position becoming concentric circle arcuation with described coil spring part main body with the radius larger than the radius of described coil spring part main body, and, the other end lateral coil wire rod extended from the other end of the coil wire rod of described coil spring part main body in the position in the outside of described coil spring part main body along the central axis of described coil spring part main body towards described end side coil bending wire,
Cylindrical body, its both ends open, and described coil spring part main body is housed in inside coaxially and fixes described end side coil wire rod at least partially, and, form of the other end lateral coil wire rod space residing for the described the other end lateral coil wire rod distance between internal face and central axis than the distance between other internal face and central axis;
Push part, it can be arranged on described the other end lateral coil wire rod space removably, and longer than the half along the length in the described the other end lateral coil wire rod space of the circumference of described coil spring part.
5. anti-falling piece as claimed in claim 4, it is characterized in that, described push part, when being installed in described the other end lateral coil wire rod space, another side of the opposition side towards a side of described the other end lateral coil wire rod or this side is provided with plane of inclination.
6. anti-falling piece as claimed in claim 4, it is characterized in that, described push part has:
First recess, when the state contacted with the internal face of described cylindrical body with the side of described push part is installed in described the other end lateral coil wire rod space, chimeric at least partially with described the other end lateral coil wire rod, further, be arranged on and position as suitable in upper/lower positions: with as described in push part be installed in as described in static the other end lateral coil wire rod before the other end lateral coil wire rod space position compared with move to expanding side time the position of the other end lateral coil wire rod; With
Second recess, when the state contacted with the internal face of described cylindrical body with the side of described push part is installed in described the other end lateral coil wire rod space, chimeric at least partially with described the other end lateral coil wire rod, further, be arranged on and position as suitable in upper/lower positions: as described in push part be installed in as described in the position of static the other end lateral coil wire rod before the other end lateral coil wire rod space.
7. anti-falling piece as claimed in claim 6, is characterized in that, the inner side surface of described first recess is provided with plane of inclination that the direction expanding to coil spring part tilt and above this plane of inclination with substantially vertical of this plane of inclination continuous print.
8. anti-falling piece as claimed in claim 6, is characterized in that,
Described first recess is arranged on an edge of described push part,
Described second recess is arranged on another edge of the opposition side of this edge,
Described push part has:
Rotatable announcement information that is shown, that notify the situation that described coil spring part can rotate along the outer circumferential face of bolt on the edge being provided with the described push part of described first recess; With
Shown by another edge being provided with the described push part of described second recess, notify the situation that described coil spring part can not rotate along the outer circumferential face of bolt can not rotate announcement information.
9. anti-falling piece as claimed in claim 6, is characterized in that,
Described first recess and described second recess are arranged on the same edge of described push part,
Described push part has:
Shown by the access areas of described first recess in this edge, to notify the situation that described coil spring part can rotate along the outer circumferential face of bolt rotatable announcement information; With
Shown in the access areas of described second recess in described edge, notify the situation that described coil spring part can not rotate along the outer circumferential face of bolt can not rotate announcement information.
10. anti-falling piece as claimed in claim 1, is characterized in that, the front end of described the other end lateral coil wire rod is outstanding and roughly vertically down to bend from the opening portion of the end face on the top of described cylindrical body, and is positioned at the outside of described cylindrical body.
11. 1 kinds of anti-falling pieces, have coil spring part and cylindrical body, and described cylindrical body fixes the upper end of this coil spring part, and, be formed with opening portion, the lower end of coil spring part described in this opening portion mooring,
Described anti-falling piece and screw threaded are fixed, and it is characterized in that,
Described coil spring part adopts the internal diameter less than the external diameter of the foot of described bolt, and the lower end of this coil spring part is tethered in described cylindrical body under expanding state, and the lower end of this coil spring part can be made to move to expanding direction.
12. anti-falling pieces as claimed in claim 11, is characterized in that, the lower end of described coil spring part is given prominence to from described opening portion.
13. 1 kinds of anti-falling pieces, have coil spring part and cylindrical body, and described cylindrical body fixes the upper end of this coil spring part, and, there is the coil spring insertion part defining opening portion and the screw section defining thread groove, the lower end of coil spring part described in this opening portion mooring
Described anti-falling piece and screw threaded are fixed, and it is characterized in that,
Described coil spring part adopts the internal diameter less than the external diameter of the foot of described bolt, the lower end of this coil spring part under expanding state by mooring in described coil spring insertion part, and the lower end of this coil spring part can be made to move to expanding direction.
14. anti-falling pieces as claimed in claim 13, is characterized in that, the lower end of described coil spring part is given prominence to from described opening portion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/061327 WO2013161047A1 (en) | 2012-04-27 | 2012-04-27 | Drop-out prevention tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104271967A true CN104271967A (en) | 2015-01-07 |
| CN104271967B CN104271967B (en) | 2016-04-20 |
Family
ID=49482414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280072707.2A Active CN104271967B (en) | 2012-04-27 | 2012-04-27 | Anti-falling piece |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5407010B1 (en) |
| CN (1) | CN104271967B (en) |
| WO (1) | WO2013161047A1 (en) |
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| JP2005121570A (en) * | 2003-10-20 | 2005-05-12 | Kirin Techno-System Corp | Foreign substance inspecting method and foreign substance inspecting apparatus |
| JP2010078139A (en) * | 2008-08-29 | 2010-04-08 | Eco Tool:Kk | Locknut |
| CN102395803A (en) * | 2009-04-17 | 2012-03-28 | 弗劳莱特控制有限公司 | Locking threaded fastener |
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- 2012-04-27 CN CN201280072707.2A patent/CN104271967B/en active Active
- 2012-04-27 WO PCT/JP2012/061327 patent/WO2013161047A1/en active Application Filing
- 2012-04-27 JP JP2013541122A patent/JP5407010B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165814U (en) * | 1981-04-15 | 1982-10-19 | ||
| JP2005121570A (en) * | 2003-10-20 | 2005-05-12 | Kirin Techno-System Corp | Foreign substance inspecting method and foreign substance inspecting apparatus |
| JP2010078139A (en) * | 2008-08-29 | 2010-04-08 | Eco Tool:Kk | Locknut |
| CN102395803A (en) * | 2009-04-17 | 2012-03-28 | 弗劳莱特控制有限公司 | Locking threaded fastener |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108012551A (en) * | 2016-03-11 | 2018-05-08 | Kslnc有限公司 | Locking nut |
| CN105864251A (en) * | 2016-06-01 | 2016-08-17 | 宁波天辉机械有限公司 | Expansion type anchoring device |
| CN105864251B (en) * | 2016-06-01 | 2017-12-08 | 宁波天辉机械有限公司 | Expanding anchor |
| CN106089950B (en) * | 2016-08-25 | 2018-07-03 | 宁波金鼎紧固件有限公司 | A kind of sea tooling is for fastener |
| CN106089950A (en) * | 2016-08-25 | 2016-11-09 | 宁波金鼎紧固件有限公司 | A kind of sea frock is for securing member |
| CN106194965A (en) * | 2016-08-25 | 2016-12-07 | 宁波金鼎紧固件有限公司 | Sea frock Redundant |
| CN108571509A (en) * | 2017-03-09 | 2018-09-25 | Kslnc有限公司 | Locking nut |
| CN107269659A (en) * | 2017-07-06 | 2017-10-20 | 江苏永昊高强度螺栓有限公司 | High intensity locking nut |
| CN107588081A (en) * | 2017-10-24 | 2018-01-16 | 西藏深元投资有限公司 | Stop nut and locking fastening assembly |
| CN113811694A (en) * | 2019-04-17 | 2021-12-17 | 文相烈 | Anti-loose nut |
| CN111734851A (en) * | 2020-06-17 | 2020-10-02 | 新乡航空工业(集团)有限公司 | Self-locking structure capable of debugging and disassembling bypass valve of aviation heat exchanger |
| CN111734851B (en) * | 2020-06-17 | 2022-03-29 | 新乡航空工业(集团)有限公司 | Self-locking structure capable of debugging and disassembling bypass valve of aviation heat exchanger |
| CN111853037A (en) * | 2020-07-22 | 2020-10-30 | 同济大学 | Check bolt fastener |
| CN113217518A (en) * | 2021-06-23 | 2021-08-06 | 宝鸡市兴顺机械制造有限公司 | Locknut and processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013161047A1 (en) | 2013-10-31 |
| JPWO2013161047A1 (en) | 2015-12-21 |
| CN104271967B (en) | 2016-04-20 |
| JP5407010B1 (en) | 2014-02-05 |
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