KR20170002800U - A Double screw of a Bolt and Nut - Google Patents
A Double screw of a Bolt and Nut Download PDFInfo
- Publication number
- KR20170002800U KR20170002800U KR2020160000503U KR20160000503U KR20170002800U KR 20170002800 U KR20170002800 U KR 20170002800U KR 2020160000503 U KR2020160000503 U KR 2020160000503U KR 20160000503 U KR20160000503 U KR 20160000503U KR 20170002800 U KR20170002800 U KR 20170002800U
- Authority
- KR
- South Korea
- Prior art keywords
- pitch
- nut
- bolt
- screw
- threaded portion
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 3
- 239000011295 pitch Substances 0.000 description 69
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Images
Classifications
-
- 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
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention relates to a screw having a double pitch formed for mutual fastening between two types of bolts and nuts having a first pitch and a second pitch, A first threaded portion formed with a first threaded portion; And a second screw portion having a second pitch formed by cutting the first screw portion to fasten another bolt and nut to the first screw portion,
Two kinds of threads made of a first pitch and a second pitch are formed in one thread, and two kinds of bolts and nuts different from each other can be easily and commonly fastened to one joint, and one nut It is possible to reduce the purchase cost of bolts and nuts by fastening two kinds of bolts or nuts to the bolts.
Description
The present invention relates to a double pitch screw of a bolt nut. More particularly, the present invention relates to a double pitch screw of a bolt nut, and more particularly to a bolt nut having two threads of a first pitch and a second pitch formed on one thread, The present invention relates to a double pitch screw of a bolt nut which can be easily and commonly fastened to a pair of bolts or nuts and which can reduce the purchase cost of bolts or nuts by fastening two bolts or nuts to one nut or bolt having two threads. will be.
Generally, bolts and nuts are most commonly used to connect pipes, buildings, bridges, and members of various mechanical devices together.
These bolts and nuts have different axial forces and pitches depending on their dimensions, and the dimensions of the bolts and nuts are determined according to such pitches.
That is, a bolt and a nut having threads corresponding to the pitch are determined, and they have a coupling force between the members through mutual fastening.
In order to fasten the bolts and nuts to each other, one bolt and nut having the same pitch should be tightened. When connecting bolts and nuts having different pitches, separate couplings may be provided for mutual fastening.
When bolts and nuts are fastened together, bolts and nuts having double pitches for pulleys or perfect fastening have been developed and used, and Japanese Patent Application Laid-Open No. 10-2011-0003996 entitled "Bolt Nut Assembly Having Double Helical Structure" It is public.
6, the
However, the conventional bolt-nut assembly having the above-described double-helical structure prevents the torsion of the bolt and the nut from being tilted or twisted to be fixed to the threaded boss having a different height at the same height, However, since the two types of bolts or nuts having different pitches can not be fastened, there is a problem in that when a nut is fastened to two types of bolts having different pitches, And two types of bolts and nuts corresponding to the respective pitches must be provided, thus increasing the purchase cost.
It is an object of the present invention to solve the problems of the prior art as described above and it is an object of the present invention to provide a bolt having two types of threads formed of a first pitch and a second pitch on one thread, The double pitch of the bolt nut which can be easily jointed to one nut in common and can reduce the purchase cost of bolts and nuts by fastening two bolts or nuts to one nut or bolt with two threads. Screws.
In order to achieve the above object, the double pitch screw of the bolt nut is a double pitch screw formed for mutually fastening two bolts and a nut having a first pitch and a second pitch, A first threaded portion having a first pitch formed therebetween for fastening the same threaded bolt and nut to each other; And a second screw portion having a second pitch formed by cutting the first screw portion to fasten another type of bolt and nut to the first screw portion.
Wherein the first threaded portion comprises a first central threaded portion interlocking with a center of a first pitch of the bolt and nut and a first cutting threaded portion cut at both sides of the first central threaded portion to engage a first pitch of the bolt and nut .
Wherein the second threaded portion comprises a second central threaded portion interlocking with a center of a second pitch of the bolt and nut and a second cutting threaded portion cut at both sides of the second central threaded portion to engage a second pitch of the bolt and nut .
The double pitch screw of the bolt nut according to the present invention having the above-described structure is characterized in that the first screw portion having the first pitch formed by the one screw is fastened to the second screw portion having the second pitch, Two kinds of threads made of a first pitch and a second pitch are formed in one thread, so that two kinds of bolts and nuts different from each other can be easily and commonly fastened to one joint. In addition, It is possible to reduce the purchase cost of bolts or nuts by fastening two kinds of bolts or nuts to the nuts or bolts.
1 is a schematic view showing a double pitch screw according to the present invention;
Fig. 2 is a sectional view showing a double pitch screw according to the present invention; Fig.
Fig. 3 is an outline view showing a state of engaging with a first screw according to the present invention; Fig.
Fig. 4 is an outline view showing a state of engaging with a second screw according to the present invention; Fig.
Fig. 5 is a schematic view showing two conventional pitch screws. Fig.
6 is a schematic view showing a conventional two-pitch bolt and nut.
Hereinafter, a double pitch screw of a bolt nut, which is the present invention having the above configuration, will be described.
As shown in FIGS. 1 and 2, a double pitch screw of a bolt nut according to one embodiment of the present invention includes two types of bolts having a first pitch and a second pitch, A
That is, the
The
In FIG. 3, the
In FIG. 4, the second threaded
5 shows a screw having the first pitch P1 and the second pitch P2. The first pitch P1 indicates a thread having a pitch of 22 mm, and the second pitch P2 indicates the second pitch P2. Is 25 mm.
Next, the operation of the double pitch screw of the bolt nut, which is the present invention having the above configuration, will be described.
As shown in FIGS. 1 and 2, the double pitch screw of the bolt nut according to one embodiment of the present invention is different from the
3, the first threaded
As shown in FIG. 4, the second threaded
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It should be understood that all of the techniques that can be easily changed and used by those skilled in the art are included in the technical scope of the present invention.
10; A first threaded
12; The first incision screw
20; A second threaded
22; The second incision screw
P1; A first pitch P2; Second pitch
Claims (3)
A first screw portion (10) having a first pitch (P1) for fastening a bolt and a nut having one type of screw to each other;
And a second threaded portion 20 having a second pitch P2 formed by cutting the first threaded portion 10 to fasten the other threaded bolt and nut to the first threaded portion 10. [ Double pitch screw of bolt nut.
The first threaded portion 10 includes a first central threaded portion 11 formed to be engaged with a center of the first pitch P1 of the bolt and the nut and a second central threaded portion 11 formed on both sides of the first central threaded portion 11, And a first cutting screw part (12) formed to engage with a first pitch (P1) of the bolt nut.
The second threaded portion 20 includes a second central threaded portion 21 formed to intermesh with a center of the second pitch P2 of the bolt and nut and a second central threaded portion 21 formed on both sides of the second central threaded portion 21, And a second cutting thread portion (22) engaged with the second pitch (P2) of the bolt nut (22).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2020160000503U KR20170002800U (en) | 2016-01-28 | 2016-01-28 | A Double screw of a Bolt and Nut |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2020160000503U KR20170002800U (en) | 2016-01-28 | 2016-01-28 | A Double screw of a Bolt and Nut |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20170002800U true KR20170002800U (en) | 2017-08-07 |
Family
ID=60628316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2020160000503U KR20170002800U (en) | 2016-01-28 | 2016-01-28 | A Double screw of a Bolt and Nut |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20170002800U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190002562U (en) * | 2018-04-04 | 2019-10-14 | 최영용 | Upper rod of cue stick for billiards and a cue stick set containing it |
KR102246128B1 (en) | 2020-10-23 | 2021-04-28 | 정태진 | Fixing bolt for preventing loosening |
KR20230120484A (en) | 2022-02-09 | 2023-08-17 | 김병진 | Dual sealing screw |
-
2016
- 2016-01-28 KR KR2020160000503U patent/KR20170002800U/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190002562U (en) * | 2018-04-04 | 2019-10-14 | 최영용 | Upper rod of cue stick for billiards and a cue stick set containing it |
KR102246128B1 (en) | 2020-10-23 | 2021-04-28 | 정태진 | Fixing bolt for preventing loosening |
KR20230120484A (en) | 2022-02-09 | 2023-08-17 | 김병진 | Dual sealing screw |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
N231 | Notification of change of applicant | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |