CN1270107C - Thread structure and parts mounting element with same - Google Patents
Thread structure and parts mounting element with same Download PDFInfo
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- CN1270107C CN1270107C CN 03178692 CN03178692A CN1270107C CN 1270107 C CN1270107 C CN 1270107C CN 03178692 CN03178692 CN 03178692 CN 03178692 A CN03178692 A CN 03178692A CN 1270107 C CN1270107 C CN 1270107C
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Abstract
This thread structure is achieved by forming a threaded hole 23 in a metallic plate 22, forming a notch 25 on part of an inner-periphery edge 24 of the threaded hole 23, the inner-periphery edge 24 being divided into segments 26, 27 by the notch 25 and setting an area ranging from the segment 26 to the segment 27 so as to have a spiral shape as it goes upward, thus permitting the spiral threaded hole inner-periphery edge 27 to have a circular shape when viewed from the vertical direction to the metallic plate 22.
Description
Technical field
The present invention relates to worm structure and have the part assembly of this worm structure, worm structure of the present invention be the screw that will form on the flat member as female thread, realize being threaded.
Background technique
In the past, when implementing to be threaded, sheet metal is imposed plunging (burring) processing on metal sheet, this flange as female thread, is realized being threaded, this is that people are known.
But in said method, if sheet metal is thin plate, then the flange shape is had to for a short time, and like this, the nominal diameter of external screw thread applicatory diminishes, and can not obtain desirable connection power.In addition, because the nominal diameter of external screw thread diminishes, also there is the problem of operation difference when being threaded.
Improve one's methods as a kind of of the problems referred to above, open in the flat 6-74225 communique for example spy and to disclose a kind of worm structure, it is to form screw on sheet metal, at the square outwardly one-tenth otch in the part of this screw inner circumference edge, by this otch the screw inner circumference edge is separated into two-part, make above-mentioned two-part along the Vertical direction of sheet metal and direction displacement disconnected from each other, make the screw inner circumference edge become a female thread.
The worm structure of female thread configurations shown in Figure 13 and above-mentioned communique is similar, also is that people are known.In Figure 13, Figure 13 A is the planimetric map of female thread, and Figure 13 B is its profile, and Figure 13 C is its front elevation.On this female thread configurations 1, on sheet metal 2, form screw 3, on the inner circumference edge 4 of this screw 3, form otch 5, screw inner circumference edge 4 is separated into halves 6,7, the above-mentioned otch 5 of sandwich.Sheet metal 2 is whole by pressure forming, for example, shown in Figure 13 C, is shaped by pressure processing to upside from the diagram downside, and screw inner circumference edge 4 forms helical from 6 to half ones 7 of half, and this screw inner circumference edge 4 constitutes a female thread.
On this female thread configurations 1, screw 3 is straight holes, and the thickness of slab direction of screw inner circumference edge 4 forms the bight up and down, and as shown in figure 14, last side corner sections 8 constitutes female threaded pipe base, and following side corner sections 9 constitutes the female thread top.In above-mentioned Figure 13 A, double dot dash line represent respectively before the pressure forming screw 3A on sheet metal 2 with and inner circumference edge 4A.
In being threaded of the constituent part of duplicating machine etc., with the other side's part engagement surface side, not popular to people if constitute shape for lugs etc., and the nominal diameter of strong request external screw thread is suitable for the high M3 of usage frequency that does not damage versatility, M4.
But, in above-mentioned prior art,, be difficult to obtain desirable connection power no matter which kind of structure all is difficult to twist securely Heyang screw thread and female thread.
For example, in above-mentioned female thread configurations shown in Figure 13,, be difficult to fully to keep go up the contact condition of the top 10A of side corner sections 8 and external screw thread 10 along with the displacement of the last side corner sections 8 that constitutes female threaded pipe base increases, below, give reasons with reference to Figure 14.
Figure 14 represents to make that the female thread 1 of Figure 13 is connected with external screw thread 10, and mounting object part 11 is installed in installment state on the sheet metal 2.Sheet metal 2 is by before the pressure forming, and the inner circumference edge 4 of screw 3 is arranged in the 4A position that Figure 13 A represents with double dot dash line.
Be shaped if carry out pressure processing, then sheet metal 2 is along deflection curve 13 (with reference to Figure 13 A) bending, and this deflection curve 13 is concentric with the central axis L of female thread 1 or external screw thread 10, constitutes the circle of diameter phi 13D.Along deflection curve 13 when crooked, its bend angle 14 ψ (θ) half one 6 near near zero, and along with becoming big near half one 7, i.e. screw inner circumference edge 4 formation helicals.At this moment, twist fashionable revolution amount if θ represents external screw thread 10, then bend angle 14 ψ (θ) become the function of θ.
The addendum modification of leaving sheet metal 2 surfaces of the last side corner sections 8 of screw inner circumference edge 4, promptly female threaded pipe base addendum modification 15Z (θ) is the sin function of bend angle 14 ψ (θ), therefore, this female threaded pipe base addendum modification 15Z (θ) also becomes the function of θ.The distance expression female threaded pipe base radius 16r (θ) of the last side corner sections 8 from central axis L to screw inner circumference edge 4, this female threaded pipe base radius 16r (θ) also becomes the function of θ.
In above-mentioned worm structure in the past, haveing nothing to do from deflection curve 13 to last side corner sections 8 apart from M and θ, keep certain, therefore, when making bend angle 14 ψ (θ) become greatly when consistent with the pitch of external screw thread 10, female threaded pipe base addendum modification 15Z (θ) has increase slightly, and female threaded pipe base radius 16r (θ) increase is more, and last side corner sections 8 is left the screw section 10A of external screw thread 10.As a result, female thread 1 dies down with stubborn the closing of external screw thread 10, and power fully can not be threaded.
Summary of the invention
The present invention puts forward for solving the existing problem of above-mentioned prior art, the objective of the invention is to, the normal worm structure that can fully be connected power is provided, has the part assembly of this worm structure, and the metal pattern of this worm structure that is used to be shaped.
To achieve these goals, the present invention proposes following scheme:
(1) a kind of worm structure, on flat member, be provided with screw, form otch on the part of the inner circumference edge of above-mentioned screw, separate the screw inner circumference edge by this otch, have two separating ends, in above-mentioned two separating ends, form helical from a separating end to another separating end, this spiral helicine screw inner circumference edge constitutes a female thread, on above-mentioned flat member, in the above-mentioned screw outside, set the vortex shape deflection curve, by above-mentioned deflection curve, screw inner circumference edge and otch surround part, form the helical plane of inclination, this helical plane of inclination is the top with above-mentioned screw inner circumference edge, is bottom with above-mentioned deflection curve, it is characterized in that, in the vertical face of above-mentioned relatively deflection curve, no matter at which place of above-mentioned deflection curve, the tilt angle of above-mentioned helical plane of inclination is certain, when the Vertical direction of above-mentioned relatively flat parts was seen, above-mentioned screw inner circumference edge was rounded.
According to above-mentioned formation, the screw inner circumference edge is circular, therefore, makes external screw thread twist when being incorporated in the screw inner circumference edge, and screw inner circumference edge integral body can be connected airtight with external screw thread, and like this, power fully can be threaded.And control the addendum modification of female threaded pipe base easily, design the spiral-shaped of screw inner circumference edge front end easily.According to above-mentioned formation, in the vertical face of above-mentioned relatively deflection curve, no matter at which place of above-mentioned deflection curve, the tilt angle of above-mentioned helical plane of inclination be that necessarily the result can realize reliably that the stubborn of screw section of screw inner circumference edge and external screw thread closes.
(2) in the worm structure of (1), if having an X-rayed from the Vertical direction of above-mentioned relatively flat parts, the projection of the thickness of the above-mentioned flat member of above-mentioned screw inner circumference edge on this Vertical direction is homogeneous.
From the Vertical direction perspective of relatively flat parts, the thickness of the flat member of screw inner circumference edge is expressed as homogeneous, if flat member thickness is homogeneous, form spiral helicine screw inner circumference edge for circular, therefore, same with above-mentioned (1), power fully can be threaded.
(3) in the worm structure of above-mentioned (1), above-mentioned otch forms the outside up to the maximum diameter place of above-mentioned deflection curve.
At the maximum diameter place of deflection curve, during pressure forming, because crooked, it is poor that maximum displacement takes place, and is difficult to be shaped, and still, according to above-mentioned formation, otch forms up to the outside at the maximum diameter place of above-mentioned deflection curve, carries out pressure forming processing easily, improves processability.
(4) in the worm structure of above-mentioned (1) or (2), on above-mentioned screw inner circumference edge, form joint-cutting, replace above-mentioned otch.
(5) in the worm structure of above-mentioned (1) or (2), above-mentioned flat member is made of metal.Since make of metal, therefore, easy processing.
(6) in the worm structure of above-mentioned (1) or (2), on above-mentioned flat member, be pre-formed the bottom outlet of above-mentioned screw, the inner circumference edge of above-mentioned bottom outlet forms vortex shape, and its radius changes with certain proportion.Therefore, realize circular screw inner circumference edge by pressure forming easily.
(7) a kind of part assembly is provided with tabular par, forms female thread on this tabular par, is connected by making external screw thread twist to close with above-mentioned female thread, is installed on the framework; It is characterized in that above-mentioned female thread has any described worm structure in above-mentioned (1)-(6).
According to above-mentioned formation, the part assembly can be securely fixed on the framework.
(8) a kind of metal pattern is characterized in that, comprising:
The metal pattern body is provided with the upper planar face;
Circular port is formed on the central authorities of metal pattern body;
Article one, groove is formed on the metal pattern body, from the outside square one-tenth of the inner circle wall of circular port;
The helical crest line above circular port, roughly forms in a week around circular port, is basic point with groove one side, uprises gradually towards groove opposite side height;
The vortex shape crest line is formed on the metal pattern body, and is in the above-mentioned helical crest line outside, relative circular port center, and radius changes with certain proportion;
The helical rake is formed between above-mentioned helical crest line and the vortex shape crest line, in the vertical face of above-mentioned relatively vortex shape crest line, no matter at which place of above-mentioned vortex shape crest line, the tilt angle of above-mentioned helical rake is certain.
According to above-mentioned formation, can easily form female thread with circular screw inner circumference edge by pressure processing.
Description of drawings
Fig. 1 represents the female thread configurations of first embodiment of the invention, and wherein, Figure 1A is its planimetric map, and Figure 1B is its profile;
Fig. 2 represents along the sectional drawing of the A-A line of Figure 1A;
Fig. 3 is the planimetric map of the sheet metal before the pressure forming;
Fig. 4 makes the female thread of Fig. 1 be connected with external screw thread, and the mounting object part is installed in state on the sheet metal;
Fig. 5 represents second embodiment of the invention, makes female thread be connected with external screw thread, and the mounting object part is installed in state on the sheet metal;
Fig. 6 represents third embodiment of the invention, is the oblique drawing of part assembly;
Fig. 7 represents fourth embodiment of the invention, is the metal pattern of drift side, and wherein, Fig. 7 A is its planimetric map, and Fig. 7 B is its front elevation;
Fig. 8 represents along the sectional drawing of the B-B line of Fig. 7 A;
Fig. 9 is the planimetric map of the metal pattern of die side;
Figure 10 A represents the preceding state of screw shaping, state when Figure 10 B represents the screw shaping;
Figure 11 represents the major component oblique drawing of the duplicating machine that the present invention can be suitable for;
Figure 12 is illustrated in the example that the screw inner circumference edge forms joint-cutting, to replace otch;
Figure 13 represents the female thread configurations of conventional art, and wherein, Figure 13 A is its planimetric map, and Figure 13 B is its profile, and Figure 13 C is its front elevation;
Figure 14 represents conventional art, makes female thread be connected with external screw thread, and the mounting object part is installed in state on the sheet metal.
Embodiment
With reference to the accompanying drawings, describe the embodiment of the invention in detail.
First embodiment
Fig. 1 and Fig. 2 represent the female thread configurations that the present invention relates to, and wherein, Figure 1A is its planimetric map, and Figure 1B is its profile, and Fig. 2 represents along the sectional drawing of the A-A line of Figure 1A.
In Fig. 1 and Fig. 2, in female thread 21 structures, on sheet metal (flat member) 22, have screw 23, on the inner circumference edge 24 of this screw 23, form otch 25, screw inner circumference edge 24 is separated into halves 26,27 by this otch 25, the above-mentioned otch 25 of sandwich.Screw inner circumference edge 24 forms helical from 26 to half ones 27 of half towards the top, this screw inner circumference edge 24 constitutes a female thread.
Set vortex shape deflection curve 28 on sheet metal 22 in screw 23 outsides, sheet metal 22 is shaped deflection curve 28 inboard oblique top bendings by pressure processing.In otch 25 1 sides, deflection curve 28 is formed near above-mentioned half one 26, and in week roughly along screw 23 outsides, radius becomes greatly gradually, and otch 25 opposite sides (being the left side among Figure 1A), deflection curve 28 is formed near the tip portion 25A of otch 25.The tip portion 25A of above-mentioned otch 25 is formed on the outside of deflection curve 28 28A of maximum diameter place.
In the part that is surrounded by screw inner circumference edge 24, deflection curve 28 and otch 25, form helical plane of inclination 29, it is the top with screw inner circumference edge 24, deflection curve 28 is following.As shown in Figure 2, this helical plane of inclination 29 is set at certain tilt angle 30 ψ, and promptly in the vertical face of relative deflection curve 28, tilt angle 30 ψ of helical plane of inclination 29 are no matter which place all is certain at deflection curve 28.
Fig. 3 is the planimetric map of the sheet metal 22 before the pressure forming, is provided with the bottom outlet 23A of screw 23 on sheet metal 22, forms the otch 25 that extends to foreign side in the part of the inner circumference edge 24A of this bottom outlet 23A.This inner circumference edge 24A is not circular, and is vortex shape, and radius changes with certain proportion.To the bottom outlet 23A shown in Figure 3 shaping that presses, when the Vertical direction of relative sheet metal 22 is seen, form circular as shown in Figure 1 screw inner circumference edge 23.This occasion, if having an X-rayed along the Vertical direction of relative sheet metal 22, the thickness of then working as sheet metal 22 is for all for the moment, sheet metal 22 thickness part 22A (with reference to Figure 1A) of screw inner circumference edge 24 are expressed as homogeneous.The vortex shape of the inner circumference edge 24A that adjusts above-mentioned bottom outlet 23A according to the thickness of slab and the material of sheet metal 22 can realize circular screwhole inner circumference edge 23.
Fig. 4 makes the female thread 21 of Fig. 1 be connected with external screw thread 31, and mounting object part 32 is installed in state on the sheet metal 22.
In the present embodiment, be made as θ if external screw thread 31 is twisted fashionable revolution amount, then deflection curve 28 leaves central axis L along with θ increases, and the radius 28r (θ) of this deflection curve 28 represents with theta function.The addendum modification of leaving sheet metal 22 surfaces of the last side corner sections 33 of screw inner circumference edge 24, promptly female threaded pipe base addendum modification 34Z (θ) increases along with θ and becomes big, therefore, also becomes the function of θ.The inner circumference edge 24 of screw 21 is circular, and therefore, female threaded pipe base radius 33r is certain, is not the function of θ.In Fig. 4, the following side corner sections at label 34 expressions formation female thread top.
According to present embodiment, make the inner circumference edge 24 of screw 21 be generally circular by adjustment, consistent with the pitch of external screw thread 31, when female thread 21 and external screw thread 31 twist fashionable, the last side corner sections 33 whole top 31A with external screw thread 31 that constitute female thread 21 bottoms are connected airtight, like this, can be connected power fully.
Second embodiment
Fig. 5 represents second embodiment of the invention, makes female thread be connected with external screw thread, and the mounting object part is installed in state on the sheet metal.
In the present embodiment, the tilt angle of helical plane of inclination 29 is made as 30 ψ ', it is bigger than above-mentioned 30 ψ, make near half one 27 (with reference to Fig. 1) female threaded pipe base addendum modification 34Z ' (θ) liken to into the pitch of the external screw thread 31 of connecting object wide.Like this, do not have under the coupled condition at external screw thread 31, near half one 27, helical plane of inclination 29 is positioned at the position of representing with double dot dash line.
According to this structure, when female thread 21 was connected with external screw thread 31, last side corner sections 33 was joined with external screw thread top 31A, and towards below pushing screw inner circumference edge 24, therefore, screw inner circumference edge 24 has reaction force acts on the 31A of external screw thread top.Like this, the last side corner sections 33 and the external screw thread top 31A of screw inner circumference edge 24 can fully connect airtight, and can obtain the more firm power that is threaded.
The 3rd embodiment
Fig. 6 represents third embodiment of the invention, is the oblique drawing of part assembly.The part assembly 40 of present embodiment is provided with tabular par 41, forms female thread 42 on this tabular par 41, is connected by external screw thread is twisted to close with this female thread 42, can be installed on the framework.Use the female thread described in above-mentioned first and second embodiments as this female thread 42.
According to the structure of present embodiment, when female thread 42 is connected with external screw thread, can guarantee to connect fully power, the part assembly can be securely fixed on the framework.
The 4th embodiment
Fig. 7-Figure 10 represents fourth embodiment of the invention, and wherein, Fig. 7 A is the planimetric map of drift side metal pattern, Fig. 7 B is its front elevation, and Fig. 8 represents that along the sectional view of the B-B line of Fig. 7 A, Fig. 9 is the planimetric map of die side metal pattern, Figure 10 represents the preceding state of screw shaping, state when Figure 10 B represents the screw shaping.The metal pattern of present embodiment is to be used for forming on sheet metal 22 the helical plane of inclination 29 shown in above-mentioned first and second embodiments.
As shown in Figure 7, drift side metal pattern comprises:
Article one, groove 53, are formed on the metal pattern body 50, from the inner circle wall 52 outside square one-tenth of circular port 51;
Vortex shape crest line 55 is formed on the metal pattern body 50, and is in above-mentioned helical crest line 54 outsides, relative circular port 51 centers, and radius changes with certain proportion;
As shown in Figure 8, the tilt angle P ψ of helical rake 56 equates that with tilt angle 30 ψ of helical plane of inclination 29 the radius Pr of circular port 51 equates with the female thread top radius.The radius Pr (θ) of vortex shape crest line 55 becomes the function of θ, with the radius 28r (θ) of deflection curve 28 about equally.
Metal pattern top addendum modification ZP (θ) is the function of θ, tries to achieve with following formula:
ZP(θ)＝Z×θ/360°
At this, Z is net slip amount (a female thread pitch setting value).
The die side metal pattern forms hole 61 as shown in Figure 9 on metal pattern body 60, this hole 61 has and vortex shape crest line 55 and groove 53 corresponding shapes.
Shown in Figure 10 A, form bottom outlet 23A on the sheet metal 22, after these sheet metal 22 mountings are to the die side metal pattern body 60, shown in Figure 10 B, make drift side metal pattern body 50 descend, on sheet metal 22, form helical plane of inclination 29, shaping screw 23.
By using the metal pattern of present embodiment, be easy to the female thread shape shown in above-mentioned first and second embodiments that is shaped by pressure processing.
The 5th embodiment
The following describes fifth embodiment of the invention, present embodiment be with the duplicating machine constituent part as the part assembly, exemplify the assembly example that is used for being installed in duplicating machine.Figure 11 represents the major component oblique drawing of the duplicating machine that the present invention can be suitable for, as shown in figure 11, in the duplicating machine component parts, especially as carriage 65 grades of duplicating machine electric elements, with substrate 66 relative copying machine body frameworks 67 keeping as main frame can parts, do not require high strength, the sheet metal about thickness of slab 0.6mm is just enough.But,, consider by the plunging shape occasion that is threaded to above-mentioned thickness of slab, if to use the high nominal diameter of frequency to be M3, the screw thread correspondence of M4 is then because of strength deficiency, female thread is many, and the screw thread breakthrough can take place, and needs the above sheet metal correspondence with thickness of slab 0.8mm.
For the problems referred to above, by using the female thread shape shown in above-mentioned first and second embodiments, can separate the problem of above-mentioned female thread generation breakthrough of disappearing, can realize the carriage thin plateization, reduce the material use amount, reduce cost.
In the duplicating machine component parts, for example, parts etc. abstain from that very the cutting powder takes place around the photosensitive material.Be in the operation that is threaded of thread tapping (self-tapping) to common plunging while assembling direct formation screw thread, because the process that experience forms the female thread shape and tightens, the cutting powder easily takes place in shaping female thread shape process, sometimes, after the connection, the cutting powder falls, and peripheral part is exerted an influence, for example, damage photosensitive material etc.For this reason, to this part, carrying out tapping processing to the inner edge turn-up portion is secondary operations.
For the problems referred to above, the female thread shape shown in above-mentioned first and second embodiments does not need tapping processing by making the sheet metal displacement to obtain, and therefore, can reduce the secondary operations expense, prevents the cutting powder.Like this, can be applicable to and abstain from cutting powder place that stabilized product quality reduces cost.
Above with reference to description of drawings embodiments of the invention, but the present invention is not limited to the foregoing description.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.
For example, in the above-described embodiments, form otch 25 on screw inner circumference edge 24, describe as example, still, the present invention is not limited thereto, also can form joint-cutting 70 as shown in figure 12, replaces otch, also can play same action effect.
Claims (8)
1. worm structure, on flat member, be provided with screw, form otch on the part of the inner circumference edge of above-mentioned screw, separate the screw inner circumference edge by this otch, have two separating ends, in above-mentioned two separating ends, form helical from a separating end to another separating end, this spiral helicine screw inner circumference edge constitutes a female thread, on above-mentioned flat member, in the above-mentioned screw outside, set the vortex shape deflection curve, by above-mentioned deflection curve, screw inner circumference edge and otch surround part, form the helical plane of inclination, this helical plane of inclination is the top with above-mentioned screw inner circumference edge, is bottom with above-mentioned deflection curve, it is characterized in that, in the vertical face of above-mentioned relatively deflection curve, no matter at which place of above-mentioned deflection curve, the tilt angle of above-mentioned helical plane of inclination is certain, when the Vertical direction of above-mentioned relatively flat parts was seen, above-mentioned screw inner circumference edge was rounded.
2. worm structure according to claim 1 is characterized in that, if having an X-rayed from the Vertical direction of above-mentioned relatively flat parts, the projection of the thickness of the above-mentioned flat member of above-mentioned screw inner circumference edge on this Vertical direction is homogeneous.
3. according to the worm structure described in the claim 1, it is characterized in that above-mentioned otch forms the outside up to the maximum diameter place of above-mentioned deflection curve.
4. according to the worm structure described in claim 1 or 2, it is characterized in that, on above-mentioned screw inner circumference edge, form joint-cutting, replace above-mentioned otch.
5. according to the worm structure described in claim 1 or 2, it is characterized in that above-mentioned flat member is made of metal.
6. according to the worm structure described in claim 1 or 2, it is characterized in that, be pre-formed the bottom outlet of above-mentioned screw on above-mentioned flat member, the inner circumference edge of above-mentioned bottom outlet forms vortex shape, and its radius changes with certain proportion.
7. a part assembly is provided with tabular par, forms female thread on this tabular par, is connected by making external screw thread twist to close with above-mentioned female thread, is installed on the framework; It is characterized in that above-mentioned female thread has any described worm structure among the aforesaid right requirement 1-6.
8. a metal pattern is characterized in that, comprising:
The metal pattern body is provided with the upper planar face;
Circular port is formed on the central authorities of metal pattern body;
Article one, groove is formed on the metal pattern body, from the outside square one-tenth of the inner circle wall of circular port;
The helical crest line above circular port, roughly forms in a week around circular port, is basic point with groove one side, uprises gradually towards groove opposite side height;
The vortex shape crest line is formed on the metal pattern body, and is in the above-mentioned helical crest line outside, relative circular port center, and radius changes with certain proportion;
The helical rake is formed between above-mentioned helical crest line and the vortex shape crest line, in the vertical face of above-mentioned relatively vortex shape crest line, no matter at which place of above-mentioned vortex shape crest line, the tilt angle of above-mentioned helical rake is certain.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP218031/02 | 2002-07-26 | ||
| JP2002218031A JP2004060727A (en) | 2002-07-26 | 2002-07-26 | Thread structure and parts mounting member with this thread structure |
| JP218031/2002 | 2002-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1480654A CN1480654A (en) | 2004-03-10 |
| CN1270107C true CN1270107C (en) | 2006-08-16 |
Family
ID=31939338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03178692 Expired - Fee Related CN1270107C (en) | 2002-07-26 | 2003-07-22 | Thread structure and parts mounting element with same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004060727A (en) |
| CN (1) | CN1270107C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008036711A (en) * | 2006-07-10 | 2008-02-21 | Ochiai:Kk | Screw fixing tool and method of manufacturing screw fixing tool |
| CN102748363A (en) * | 2012-07-16 | 2012-10-24 | 冠捷显示科技（厦门）有限公司 | Tapping-free screw hole locking structure |
| JP2022024545A (en) * | 2020-07-28 | 2022-02-09 | 総和工業株式会社 | Hole structure of thin metal plate with hole |
-
2002
- 2002-07-26 JP JP2002218031A patent/JP2004060727A/en active Pending
-
2003
- 2003-07-22 CN CN 03178692 patent/CN1270107C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004060727A (en) | 2004-02-26 |
| CN1480654A (en) | 2004-03-10 |
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Granted publication date: 20060816 Termination date: 20120722 |