CN201013698Y - Wooden screw having stock removing function - Google Patents
Wooden screw having stock removing function Download PDFInfo
- Publication number
- CN201013698Y CN201013698Y CN 200720002305 CN200720002305U CN201013698Y CN 201013698 Y CN201013698 Y CN 201013698Y CN 200720002305 CN200720002305 CN 200720002305 CN 200720002305 U CN200720002305 U CN 200720002305U CN 201013698 Y CN201013698 Y CN 201013698Y
- Authority
- CN
- China
- Prior art keywords
- pointed cone
- cone part
- thread
- wood screws
- body portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002023 wood Substances 0.000 claims abstract description 47
- 238000005520 cutting process Methods 0.000 claims description 51
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 2
- 229920002522 Wood fibre Polymers 0.000 description 9
- 239000002025 wood fiber Substances 0.000 description 9
- 238000005336 cracking Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
-
- 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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0084—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by geometric details of the tip
-
- 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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/106—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a self-piercing screw-point, i.e. without removing material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Connection Of Plates (AREA)
Abstract
A wood screw comprises a screw head, a rod body, an engagement thread and at least one cut thread. The screw head is used to be connected with a locking tool. The rod body is extended out from the screw head and is provided with a parallel rod body part, a pointed cone part which is formed at the end of the parallel rod body part and gradually becomes sharp and a tip which is formed at the end of the pointed cone part. The engagement thread is formed on the parallel rod body part. at least one cut thread is formed on the pointed cone part and one end of the cut thread is gradually extended and connected to the tip of the pointed cone part, and the other end of the cut thread ends at the juncture between the parallel rod body part and the pointed cone part and is not connected with the engagement thread.
Description
Technical field
The utility model relates to a kind of screw, relates more specifically to a kind of WOOD SCREWS.
Background technique
With reference to figure 1, a kind of existing WOOD SCREWS 100 comprises the spiral shell head 110 and the body of rod 120.Spiral shell head 110 is in order to join with the locking instrument; 120 of the bodies of rod are extended out by spiral shell head 110, and the pointed cone part 122 that has parallel bar body portion 124 and be formed at parallel bar body portion 124 ends.In addition, on parallel bar body portion 124 and pointed cone part 122, be formed with screw thread 130.
The wooden unit that above-mentioned WOOD SCREWS 100 will be locked need not be holed in advance, can directly it be screwed in the wooden unit.Yet, when WOOD SCREWS 100 screws in wooden units, because of increasing gradually from the frictional force between parallel bar body portion 124 and screw thread 130 and wooden unit, thus the increasing screw-in torsion of needs, and wooden unit also splits easily.
With reference to figure 2, for addressing the above problem, Taiwan patent announcement M259860 number, title are " WOOD SCREWS of cutting fast ", disclose a kind of WOOD SCREWS 200 that can cut wooden unit.WOOD SCREWS 200 comprises the spiral shell head 210 and the body of rod 220.Spiral shell head 210 is in order to join with the locking instrument; 220 of the bodies of rod are extended out by spiral shell head 210, and the pointed cone part 222 that has parallel bar body portion 224 and be formed at parallel bar body portion 224 ends.In addition, be formed with thread engagement 230 on the parallel bar body portion 224, be formed with the screw cutting 240 that links to each other with thread engagement 230 on the pointed cone part 222.The helix angle of thread engagement 230 (helix angle) is greater than the helix angle (referring to the angle with body of rod center line) of this screw cutting 240.During WOOD SCREWS 200 screw-in wooden units, wood fiber in the screw cutting 240 continual cutting wooden units, thereby WOOD SCREWS 200 is screwed in the needed torsion of wooden units can screw in the needed torsion of wooden units less than the WOOD SCREWS 100 that will not have screw cutting, and the chance that drilled wooden unit is broken also can reduce.
In addition, with reference to figure 3, Taiwan patent announcement M299788 number, title are " WOOD SCREWS of unequal helix angle ", also disclose a kind of WOOD SCREWS 300 that can cut wooden unit.WOOD SCREWS 300 comprises the spiral shell head 310 and the body of rod 320.Spiral shell head 310 is in order to join with the locking instrument; 320 of the bodies of rod are extended out by spiral shell head 310, and the pointed cone part 322 that has parallel bar body portion 324 and be formed at parallel bar body portion 324 ends.In addition, be formed with thread engagement 330 on the parallel bar body portion 324, then be formed with two screw cutting 340a, 340b on the pointed cone part 322, wherein the end convergent of screw cutting 340a extends the least significant end that is connected to pointed cone part 322, and the other end then links to each other with an end of thread engagement 330; The end of screw cutting 340b also convergent extends the least significant end that is connected to pointed cone part 322, but the other end then ends at the intersection of parallel bar body portion 324 and pointed cone part 322.Similarly, also greater than the helix angle of screw cutting 340a, 340b, during WOOD SCREWS 300 screw-in wooden units, screw cutting 340a, 340b understand the wood fiber in the continual cutting wooden unit to the helix angle of thread engagement 330.
With reference to figure 4, Taiwan patent announcement I266002 number, title are " WOOD SCREWS with cutting function ", also disclose a kind of WOOD SCREWS 400 that can cut wooden unit.WOOD SCREWS 400 comprises the spiral shell head 410 and the body of rod 420.Spiral shell head 410 is in order to join with the locking instrument; 420 of the bodies of rod are extended out by spiral shell head 410, and the pointed cone part 422 that has parallel bar body portion 424 and be formed at parallel bar body portion 424 ends.In addition, be formed with thread engagement 430 on the parallel bar body portion 424, be formed with at least one screw cutting 450 on the pointed cone part 422, this screw cutting 450 comprises the straight tooth 452 that extends from the tip 426 of pointed cone part 422, and the guiding threads 454 that extends and arrive parallel bar body portion 424 ends from straight tooth 452 ends.The straight tooth 452 of above-mentioned WOOD SCREWS 400 is used in the wood fiber that WOOD SCREWS 400 screws in cutting wooden unit during the wooden units, and guiding threads 454 is used in the wood fiber that WOOD SCREWS 400 screws in cutting wooden unit during the wooden units and guiding thread engagement 430 and wooden unit engagement.
The model utility content
The purpose of this utility model is to provide a kind of WOOD SCREWS, its pointed cone is partly gone up formed screw cutting can tentatively carry out reaming on the wooden unit surface, and during screw screws in wooden unit the wood fiber in the cutting wooden unit, and guiding thread engagement and wooden unit engagement, thereby make DRIVE SCREWS more laborsaving, and avoided the problem of wooden unit cracking.
For achieving the above object, WOOD SCREWS of the present utility model comprises the spiral shell head and the body of rod.The end face of spiral shell head has groove, in order to join with the locking instrument.The body of rod is then extended out by the spiral shell head, and defines axis (axis).The body of rod has the parallel bar body portion, be formed at the terminal and tapered pointed cone part of parallel bar body portion and be formed at the terminal tip of pointed cone part.Be formed with thread engagement on the parallel bar body portion, can mesh, prevent the stretching resistance of extracting to provide with wooden unit.Be formed with screw cutting on the pointed cone part, an end convergent of screw cutting extends the tip that is connected to the pointed cone part, and the other end then ends at the intersection of parallel bar body portion and pointed cone part, and does not link to each other with thread engagement.
Can during WOOD SCREWS screws in wooden unit, cut the wood fiber of wooden unit according to the screw cutting of WOOD SCREWS of the present utility model, and guide thread engagement and wooden unit engagement, thereby make DRIVE SCREWS more laborsaving, and avoid the problem of wooden unit cracking.In addition, if up and down two to form shape dental lamina die assemblies and be shaped and make WOOD SCREWS, then because of screw cutting must not link to each other with thread engagement, so so can remove from because of the cutting thread and link to each other and to adjust and the difficulty of aiming at the dental lamina mould with the engagement thread.
For allow above-mentioned and other purpose of the present utility model, feature and advantage can be more obvious, embodiment of the present utility model cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1-4: be different existing WOOD SCREWS.
Fig. 5 a, 5b and 5c: for according to WOOD SCREWS of the present utility model.
100: WOOD SCREWS, 110: the spiral shell head, 120: the body of rod, 122: the pointed cone part,
124: the parallel bar body portion, 130: screw thread, 200: WOOD SCREWS, 210: the spiral shell head,
220: the body of rod, 222: the pointed cone part, 224: the parallel bar body portion,
230: thread engagement, 240: screw cutting, 300: WOOD SCREWS, 310: the spiral shell head,
320: the body of rod, 322: the pointed cone part, 324: the parallel bar body portion,
330: thread engagement, 340a: screw cutting, 340b: screw cutting,
400: WOOD SCREWS, 410: the spiral shell head, 420: the body of rod, 422: the pointed cone part,
424: the parallel bar body portion, 426: the tip, 430: thread engagement,
450: screw cutting, 452: straight tooth, 454: guiding threads, 500: WOOD SCREWS,
510: the spiral shell head, 512: groove, 514: end face, 520: the body of rod,
522: the pointed cone part, 524: the parallel bar body portion, 526: the tip,
530: thread engagement, 550: screw cutting, 590: axis,
D: the core diameter of thread (minor diameter), D1: major diameter of thread (outside diameter),
D2: major diameter of thread, α: helix angle, θ: helix angle.
Embodiment
Please refer to Fig. 5 a, 5b and 5c, WOOD SCREWS 500 of the present utility model comprises the spiral shell head 510 and the body of rod 520.The end face 514 of spiral shell head 510 has groove 512, in order to join with the locking instrument.The body of rod 520 is extended out by spiral shell head 510, and defines axis 590.The body of rod 520 has parallel bar body portion 524, is formed at parallel bar body portion 524 terminal and tapered pointed cone parts 522, and the tip 526 that is formed at pointed cone part 522 ends.Be formed with thread engagement 530 on the parallel bar body portion 524, it can mesh with wooden unit, prevents the stretching resistance of extracting to provide.Be formed with spiral helicine screw cutting 550 on the pointed cone part 522, one end convergent of screw cutting 550 extends the tip 526 that is connected to pointed cone part 522, the other end then ends at the intersection of parallel bar body portion 524 and pointed cone part 522, and does not link to each other with thread engagement 530.The pitch angle alpha will of screw cutting 550 is less than the helixangle of thread engagement 530, and wherein the helix angle of screw thread is defined as the helix of screw thread and the angle of axis 590.The maximum major diameter of thread D2 of screw cutting 550 is greater than the core diameter of thread d of thread engagement 530, and less than the major diameter of thread D1 of thread engagement 530.
According to WOOD SCREWS 500 of the present utility model, can have one, two, three or or even a plurality of screw cutting 550, described screw cutting 550 is formed on the pointed cone part 522 symmetrically, and extends a circle at the most.
Be used in the wood fiber that WOOD SCREWS 500 screws in cutting wooden unit during the wooden units according to the screw cutting 550 of WOOD SCREWS 500 of the present utility model, and guiding thread engagement 530 and wooden unit engagement.This is because screw cutting 550 has less helix angle, and wooden unit takes place originally to screw in earlier, cuts the change action of wood fiber and reaming afterwards.After thread engagement 530 and wooden unit mesh, to force WOOD SCREWS 500 to screw in the wooden unit fast, and, only need less torsion can make thread engagement 530 and wooden unit engagement, and have anti-cracking function (this can bring into play the effect of cutting wood fiber and reaming in advance because of screw cutting 550 after thread engagement 530 screws in wooden unit).In addition, if up and down two to form shape dental lamina die assemblies and be shaped and make WOOD SCREWS 500, then, link to each other and to adjust and the difficulty of aiming at the dental lamina mould with the engagement thread so therefore can remove from because of cutting thread because of screw cutting 550 must not link to each other with thread engagement 530.
Though the utility model discloses with aforementioned better embodiment, yet it is not in order to limiting the utility model, anyly has the knack of this operator, under the prerequisite that does not break away from spirit and scope of the present utility model, can make various changes and modification.Therefore protection domain of the present utility model should be decided on accompanying Claim book scope.
Claims (5)
1. WOOD SCREWS comprises:
The spiral shell head is in order to be connected with the locking instrument;
The body of rod extends out from this spiral shell head, and defines axis, and this body of rod has the parallel bar body portion, be formed at the terminal and tapered pointed cone part of this parallel bar body portion and be formed at this terminal tip of pointed cone part;
Thread engagement is formed on this parallel bar body portion; And
At least one spiral helicine screw cutting, be formed on this pointed cone part, one end convergent of described screw cutting extends the tip that is connected to this pointed cone part, and the other end then ends at the intersection of this parallel bar body portion and this pointed cone part and do not link to each other with this thread engagement.
2. WOOD SCREWS according to claim 1, wherein, the helix angle of this screw cutting is less than the helix angle of this thread engagement.
3. WOOD SCREWS according to claim 1 and 2, wherein, the maximum major diameter of thread of this screw cutting is greater than the core diameter of thread of this thread engagement, and less than the major diameter of thread of this thread engagement.
4. WOOD SCREWS according to claim 1 and 2, wherein, this WOOD SCREWS comprises at least two screw cuttings, described screw cutting is formed on this pointed cone part symmetrically.
5. WOOD SCREWS according to claim 3, wherein, this WOOD SCREWS comprises at least two screw cuttings, described screw cutting is formed on this pointed cone part symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720002305 CN201013698Y (en) | 2007-01-30 | 2007-01-30 | Wooden screw having stock removing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720002305 CN201013698Y (en) | 2007-01-30 | 2007-01-30 | Wooden screw having stock removing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013698Y true CN201013698Y (en) | 2008-01-30 |
Family
ID=39025487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720002305 Expired - Fee Related CN201013698Y (en) | 2007-01-30 | 2007-01-30 | Wooden screw having stock removing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013698Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235410A (en) * | 2010-04-26 | 2011-11-09 | 宽仕工业股份有限公司 | Wooden screw |
| CN103319773A (en) * | 2013-06-27 | 2013-09-25 | 苏州工业园区依利电子贸易有限公司 | Environment-friendly preservative film |
-
2007
- 2007-01-30 CN CN 200720002305 patent/CN201013698Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235410A (en) * | 2010-04-26 | 2011-11-09 | 宽仕工业股份有限公司 | Wooden screw |
| CN103319773A (en) * | 2013-06-27 | 2013-09-25 | 苏州工业园区依利电子贸易有限公司 | Environment-friendly preservative film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20160130 |
|
| EXPY | Termination of patent right or utility model |