CN101956896A - Novel inner bore structure of oil groove piece - Google Patents
Novel inner bore structure of oil groove piece Download PDFInfo
- Publication number
- CN101956896A CN101956896A CN2010101807626A CN201010180762A CN101956896A CN 101956896 A CN101956896 A CN 101956896A CN 2010101807626 A CN2010101807626 A CN 2010101807626A CN 201010180762 A CN201010180762 A CN 201010180762A CN 101956896 A CN101956896 A CN 101956896A
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- China
- Prior art keywords
- oil groove
- inner bore
- groove piece
- circular arc
- radius
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Abstract
The invention discloses a novel inner bore structure of an oil groove piece, which comprises two parallel straight sides. The novel inner bore structure is characterized in that: corners at the two ends of each straight side are connected with a sloping side through a first circular arc with a radius R1 respectively; the sloping side and the corresponding straight side are simultaneously tangent to the corresponding first circular arc; and the sloping sides are simultaneously in tangent connection with a second circular arc with the radius R2. As an inner bore of the oil groove piece is designed into the structure without any sharp corner, a mould for punching the inner bore of the oil groove piece is stable, can easily punch the inner bore and simultaneously can punch the oil groove piece with strong strength. The novel inner bore structure of the oil groove piece greatly improves the performance and quality of the product. In addition, the oil groove piece of the invention can avoid burrs produced in the face milling of a shaft centre of a rotating shaft in an assembly process.
Description
Technical field
The present invention relates to a kind of notebook computer changes upward sheathed oil groove sheet, especially relates to a kind of inner hole structure of oil groove sheet, belongs to technical field of electronic products.
Background technique
Characteristics such as notebook computer is light and handy because of it, be convenient for carrying extensively are the user's favorite; and important effect has been played in the notebook rotating shaft in the using process of notebook; in the notebook rotating shaft; having the concavo-convex of a location takes turns; and concavo-convex take turns and host rack between usually also be provided with the oil groove sheet that rotates with rotating shaft, be used for concavo-convex take turns and the frame of main frame between fuel feeding and lubricated.
Fig. 1 is traditional oil groove sheet inner hole structure schematic representation.
As shown in Figure 1: in the middle of the oil groove sheet 1 is a waist shape endoporus 2 that cooperates with the notebook rotating shaft, be that endoporus 2 comprises the circular arc 26 that two parallel straight lines 3 and two radius are R2, this kind inner hole structure has wedge angle at the connection part of straight line 3 and circular arc 26, the drift of making the mould of endoporus weares and teares easily, cause the product fracture easily, perhaps be difficult for assembling.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of product strength height, not easy-rupturing, be easy to punching out, the stable novel oil groove sheet inner hole structure of mould.
The present invention is achieved through the following technical solutions:
A kind of novel oil groove sheet inner hole structure, comprise two parallel straight lines, it is characterized in that, corner at the straight line two ends, be that the circular arc one of R1 is connected with a hypotenuse by a radius respectively, hypotenuse and straight line are tangential on circular arc one simultaneously, and simultaneously tangently between hypotenuse and the hypotenuse are connected the circular arc two that a radius is R2.
The invention has the beneficial effects as follows: become not have the structure of wedge angle by bore design with the oil groove sheet, make that the mould of punching out oil groove sheet endoporus is very stable, and be easy to punching out, the oil groove sheet intensity of punching out simultaneously is also very high, the present invention has improved the performance and the quality of product greatly, in addition, oil groove sheet of the present invention can also be avoided the burr that rotating shaft core is washed one's face and produced in the process of assembling.
Description of drawings
Fig. 1 is traditional oil groove sheet inner hole structure schematic representation;
Fig. 2 is the structural representation of one embodiment of the invention;
Fig. 3 is an assembly structure schematic representation of the present invention.
Main reference character implication is among the figure:
1, oil groove sheet 2, endoporus 3, straight line 4, circular arc 1, hypotenuse 6, circular arc 7, axle center
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Fig. 2 is the structural representation of one embodiment of the invention.
As shown in Figure 2: oil groove sheet 1 its centre is an endoporus 2, endoporus 2 comprises two parallel straight lines 3, corner at straight line 3 two ends, be that the circular arc 1 of R1 is connected with a hypotenuse 5 by a radius respectively, hypotenuse 5 is tangential on circular arc 1 simultaneously with straight line 3, then simultaneously tangently between hypotenuse and the hypotenuse is connected the circular arc 26 that a radius is R2.
Fig. 3 is an assembly structure schematic representation of the present invention.
As shown in Figure 3: oil groove sheet 1 is set on the axle center 7 by endoporus 2, because the sectional shape in axle center 7 is a waist shape structure, the circular arc that to be it be R2 by two parallel straight lines 3 and two radius is formed, being enclosed within on the axle center 7 of endoporus 2, its edge is slightly larger than axle center 7, therefore install and be very easy to, in addition, oil groove sheet 1 special endoporus 2 structures make oil groove sheet 1 be easy to punching out, mould is stable, and good product quality, performance are strong, can also avoid the burr that rotating shaft core 7 is washed one's face and produced simultaneously in the process of assembling.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technological scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (1)
1. novel oil groove sheet inner hole structure, comprise two parallel straight lines, it is characterized in that, corner at the straight line two ends, be that the circular arc one of R1 is connected with a hypotenuse by a radius respectively, hypotenuse and straight line are tangential on circular arc one simultaneously, and simultaneously tangently between hypotenuse and the hypotenuse are connected the circular arc two that a radius is R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101807626A CN101956896A (en) | 2010-05-21 | 2010-05-21 | Novel inner bore structure of oil groove piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101807626A CN101956896A (en) | 2010-05-21 | 2010-05-21 | Novel inner bore structure of oil groove piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956896A true CN101956896A (en) | 2011-01-26 |
Family
ID=43484403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101807626A Pending CN101956896A (en) | 2010-05-21 | 2010-05-21 | Novel inner bore structure of oil groove piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956896A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001003927A (en) * | 1999-06-17 | 2001-01-09 | Nhk Spring Co Ltd | Shaft lock device |
| CN201258908Y (en) * | 2008-08-28 | 2009-06-17 | 可利科技(苏州工业园区)有限公司 | Positioning hinge device |
| CN201269252Y (en) * | 2008-08-28 | 2009-07-08 | 可利科技(苏州工业园区)有限公司 | Positioning type hinge device |
| US20100251518A1 (en) * | 2009-04-02 | 2010-10-07 | Hon Hai Precision Industry Co., Ltd. | Hinge |
| CN201715212U (en) * | 2010-05-21 | 2011-01-19 | 昆山联德精密机械有限公司 | Novel oil groove piece inner bore structure |
-
2010
- 2010-05-21 CN CN2010101807626A patent/CN101956896A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001003927A (en) * | 1999-06-17 | 2001-01-09 | Nhk Spring Co Ltd | Shaft lock device |
| CN201258908Y (en) * | 2008-08-28 | 2009-06-17 | 可利科技(苏州工业园区)有限公司 | Positioning hinge device |
| CN201269252Y (en) * | 2008-08-28 | 2009-07-08 | 可利科技(苏州工业园区)有限公司 | Positioning type hinge device |
| US20100251518A1 (en) * | 2009-04-02 | 2010-10-07 | Hon Hai Precision Industry Co., Ltd. | Hinge |
| CN201715212U (en) * | 2010-05-21 | 2011-01-19 | 昆山联德精密机械有限公司 | Novel oil groove piece inner bore structure |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110126 |