CN100473851C - Screw provided with a socket head adapted to a drill end shape - Google Patents
Screw provided with a socket head adapted to a drill end shape Download PDFInfo
- Publication number
- CN100473851C CN100473851C CNB2004800421895A CN200480042189A CN100473851C CN 100473851 C CN100473851 C CN 100473851C CN B2004800421895 A CNB2004800421895 A CN B2004800421895A CN 200480042189 A CN200480042189 A CN 200480042189A CN 100473851 C CN100473851 C CN 100473851C
- Authority
- CN
- China
- Prior art keywords
- screw
- die cavity
- drill
- width
- shape
- 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
- 238000005553 drilling Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000008188 pellet Substances 0.000 abstract 3
- 230000000295 complement effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 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
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
The invention relates to a screw having a socket head (16) whose shape is adapted to a concrete drill end provided with a pellet (26) which is disposed on a median longitudinal plane of the end thereof and whose width L is greater than the diameter of the drill body. The inventive screw is characterised in that the socket head (16) comprises a lower part (32) which is adapted to the drill end and a top or through part (34) whose size in a first longitudinal median plane (35.1) is slightly greater than the width L of the pellet (26) and the size in another longitudinal median plane (35.2) is slightly less than the width L of the pellet (26) and greater than the diameter of the drill body.
Description
Technical field
The present invention relates to a kind of screw with die cavity, its die cavity and drill bit or similar products, especially the end shape with drill hammer is complementary.
Background technique
Screw on object, can be used different instruments usually, is earlier with boring or the drilling device punching, with hammer ringfeder is knocked in the hole again, and with screw-driver with screw in ringfeder.
As everyone knows, screw generally includes one section screwed screw rod, and difform screw head.Die cavity on the screw head can be guaranteed to carry out the fixing of screw or be screwed off screw.
Existing screw, die cavity have different shape and size, and modal is the in-line groove that passes whole screw head, and cross, butterfly, star, square, multiple tooth shape and hollow star die cavity, or the like.
The shortcoming of all these shape die cavitys is fixing or need be equipped with the special tool(s) that is complementary with the die cavity shape when screwing off screw.So, when the user on object the time, must be equipped with a series of instruments, especially a screw-driver that connects screw die cavity shape with screw in advance.
Summary of the invention
Therefore, the present invention is intended to overcome the shortcoming of original technology, based on the reason of technology and practical application, and is not for aesthstic cause, and a kind of novel die cavity shape that is applicable to all types screw is provided.
For this reason, the purpose of this invention is to provide a screw that has die cavity, the shape of its die cavity and the top of percussion drill connect, and the cutter hub of drill hammer surpasses the diameter of drilling rod at the width of the longitudinal section of drill end.It is characterized in that die cavity bottom and drill end coupling, die cavity top or the connection mouth size on first longitudinal section of screw is slightly larger than drill bit width L, and die cavity top or the connection mouth undersized on another longitudinal section of screw also surpasses the diameter of drilling rod in drill bit width L.
Description of drawings
Other characteristics of the present invention and advantage will embody in the following description, and this description only provides with example, and reference view, among the figure:
-Fig. 1 is according to screw head sectional drawing of the present invention;
-Fig. 2 A is the top view of the screw head die cavity shape of first kind of application type;
-Fig. 2 B is the top view of the screw head die cavity shape of another kind of application type;
-Fig. 3 A is the lateral elevational view on drill bit or drill hammer top;
-Fig. 3 B is the bottom view of accompanying drawing 3A drill bit;
-Fig. 4 is the front view that is applicable to the bell and spigot joint of Fig. 2 B die cavity shape;
-Fig. 5 A-5D represents screw and the schematic representation that unclamps.
Embodiment
As everyone knows, screw 10 comprises screw rod 12 and screw head 14, and screw rod 12 has the screw thread that a part processes at least, and screw head 14 includes the die cavity 16 that can fix or unclamp screw.Here the longitudinal section of said screw refers to the plane that comprises screw threads rotating shaft 15.
In order to hole in object, punching will be used drill bit or similar tool 20 in the dividing plate of especially showing in accompanying drawing 5A-5D 18, preferably can be fixed on the drill hammer in drilling device or the electric drill.The drill bit of being mentioned is described below to refer to and anyly can hole and can be fixed on instrument in drilling device or the electric drill.
Shown in 3A and the 3B, drill bit 20 contains the basic columniform drilling rod 22 that is with reference to the accompanying drawings, and the whole body has one or more spiral chutes 24, drilling cuttings can be discharged.Its end, especially the mandrel part can also be fixed.Another movable end of drill hammer comprises the cutter hub 26 that a hard material of usefulness is made at least, preferably uses wolfram steel.This cutter hub shape is flat substantially, and the groove that can insert on the longitudinal section is also soldered.Cutter hub has top sword 28, and width L surpasses the side edge 30 of drill bit drilling rod 22 diameters.
According to the present invention, the top of the shape of screw die cavity 16 and drill bit 20 is complementary, can be by this drill bit, and especially drill hammer is fixed screw.
According to a feature of the present invention, die cavity 16 comprises bottom 32 and top or connection mouth 34, bottom 32 matches with drill end, top 34 size on first longitudinal section 35.1 is slightly larger than the width L of cutter hub 26, be preferably perpendicular on another longitudinal section 35.2 of first longitudinal section, undersized is in cutter head 26 width L, simultaneously greater than drill pipe diameter.
Shown in each schematic representation, die cavity 16 does not communicate with the outer rim of screw head.
This design can realize by drill hammer with screw or unclamp.
Therefore, according to the present invention, this novel screw die cavity can be realized only using drilling device or electric drill, and drill bit, just screw can be tightened or loosened.
The first step shown in Fig. 5 A, is made a call to a hole 36 by drill bit 20; In second step, shown in 5B, ringfeder 38 is put into hole 36 together with screw 10.Then, drill bit 20 tops are placed die cavity 16, by the drill bit rotation, ringfeder and/or screw will be screwed in the hole under the rotation of electric drill, and screw 10 will be locked in the ringfeder 38, shown in Fig. 5 C.More advantageously, can also screw 10 be unclamped by the sense of rotation of reversing drill bit, shown in Fig. 5 D.
The present invention has realized a kind of more rational usage mode, for the user has saved time and workload, enterprise or individual is invested still less on instrument.
This novel die cavity is applicable to various types of screws.Be used to build and the screw of public project such as, plaster board screw, wood screw and other, be equally applicable to machinery or Parker Kollon screw.Because the sidewall of drill bit is not sharp, screw also can use hardness to be weaker than the material of drill bit, such as plastics.
According to another characteristic of the invention, as shown in Figure 4, can design a bell and spigot joint 40, its end shape and die cavity 16 are complementary, and are applicable to screw-driver or dress/unload on the equipment of screw.
Shown in accompanying drawing 2A, according to a preferred embodiment of the invention, 34 cross sections, die cavity top are rectangular.
Shown in the 2B another embodiment with reference to the accompanying drawings, 34 cross sections, die cavity top can be Hexagon.
In all situations, it is tapered that the shape of bottom 32 can be cone type, truncated cone type, pyramid type or rescinded angle.
For example, be 6 millimeters drill bit for a diameter, the length in rectangular cross section is about 6.2 millimeters, and width is about 4.2 millimeters.The height on top 34 is about 2 millimeters, and the height of bottom 32 is about 2.5 millimeters.
For one directly be the drill bit of X millimeter, the length of die cavity will be about (X+0.2) millimeter, width be (X-1.8) millimeter.
Certainly, the present invention is not limited to the embodiment of above-mentioned displaying and description, on the contrary, comprises all application modes, especially about the size and the material of screw.
Claims (5)
1. screw that has die cavity (16), die cavity shape adapt to the top of the drill hammer of a band cutter hub (26), and cutter hub surpasses the diameter of drilling rod at the width L of its longitudinal section, top; It is characterized in that die cavity (16) comprises bottom (32), described bottom and drill end coupling; Die cavity also comprises top or connection mouth (34), the size of described top on first longitudinal section (35.1) of described screw is slightly larger than the width L of cutter hub (26), and the undersized of described top on another longitudinal section (35.2) of described screw is in the width L of cutter hub (26) and greater than drill pipe diameter.
2. the screw that has die cavity (16) according to claim 1 is characterized by: the shape of cross section of top (34) is a rectangular.
3. the screw that has die cavity (16) according to claim 2 is characterized by: the rectangular cross-sectional length is about (X+0.2) millimeter, and width is (X-1.8) millimeter, wherein the bit diameter of X for representing with millimeter.
4. the screw that has die cavity (16) according to claim 1 is characterized by: the shape of cross section of top (34) is a Hexagon.
One kind with claim 1 to 4 in the bell and spigot joint that is used of the described screw die cavity of arbitrary claim, it is characterized by: described bell and spigot joint can be fixed screw or unclamp.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0315638A FR2864589A1 (en) | 2003-12-30 | 2003-12-30 | Cavity for e.g. wood screw, head, is inversed rectangular pyramid overhung over parallelepiped rectangle, where cavity is excavated in screw head and permits to fix and unfix screw or screw/peg utilizing battery-powered drill and drill bit |
| FR0315638 | 2003-12-30 | ||
| FR0450154 | 2004-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1922404A CN1922404A (en) | 2007-02-28 |
| CN100473851C true CN100473851C (en) | 2009-04-01 |
Family
ID=34639742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800421895A Expired - Fee Related CN100473851C (en) | 2003-12-30 | 2004-12-15 | Screw provided with a socket head adapted to a drill end shape |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100473851C (en) |
| FR (1) | FR2864589A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4325153A (en) * | 1979-10-22 | 1982-04-20 | Charles Finnegan | Combined screwdriver and boring apparatus |
-
2003
- 2003-12-30 FR FR0315638A patent/FR2864589A1/en not_active Withdrawn
-
2004
- 2004-12-15 CN CNB2004800421895A patent/CN100473851C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4325153A (en) * | 1979-10-22 | 1982-04-20 | Charles Finnegan | Combined screwdriver and boring apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1922404A (en) | 2007-02-28 |
| FR2864589A1 (en) | 2005-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 Termination date: 20121215 |