CN202326677U - Sunshade board metal rotating shaft - Google Patents
Sunshade board metal rotating shaft Download PDFInfo
- Publication number
- CN202326677U CN202326677U CN2011204760956U CN201120476095U CN202326677U CN 202326677 U CN202326677 U CN 202326677U CN 2011204760956 U CN2011204760956 U CN 2011204760956U CN 201120476095 U CN201120476095 U CN 201120476095U CN 202326677 U CN202326677 U CN 202326677U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- shaft shoulder
- main body
- shaft
- flat side
- 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 - Lifetime
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a sunshade board metal rotating shaft, which includes a rotating shaft main body, wherein the rotating shaft main body is a round tube with a flat square, and a shaft shoulder is arranged at the junction of the round tube main body and the flat square. The sunshade board metal rotating shaft is characterized in that the flat square of the round tube is concave downward, and the shape of the section of the shaft shoulder is an arc. The sunshade board metal rotating shaft has the advantages that the downward concave flat square and the shaft should with the arc section enable the sunshade board metal rotating shaft to be formed in one time during the machining process, the machining procedures are reduced, and the influences on the round tube, such as shaft should roundness losing and parabolic flat square middle which are caused by follow-up work procedures, can be eliminated.
Description
Technical field
The utility model relates to a kind of component of automotive sunshade panel, particularly discloses a kind of sunshading board metal rotating shaft.
Background technique
The automotive sunshade panel rotating shaft is a vital part of sunshading board; The rotating shaft main body is generally the pipe with flat side; The main function that realizes sunshading board upset and automatic applying top; Extensively adopt the nylon material rotating shaft of molding and forming at present, the sectional shape of rotating shaft main body such as Fig. 1, it comprises diameter D and two critical sizes of flat side's height H.
Compare the plastics rotating shaft, the dimensional accuracy of metal shaft is higher, and circularity is better; But when steel pipe is flattened moulding, receive factor affecting such as material extending and resilience, the sectional shape of the rotating shaft main body that obtains at last is the shape of Fig. 2; The both sides shaft shoulder loses circle, and the centre is parabola, forms unnecessary material 1; Need to increase follow-up polishing operation, as the round-corner transition of not fairing appears in the both sides shaft shoulder of the back part of polishing, will cause sunshading board umklapp process shaft and the metal jump ring abnormal sound that rubs.
Summary of the invention
The purpose of the utility model is to solve the defective that exists in the existing technology, the sunshading board metal rotating shaft of provide a kind of and reduce manufacturing procedure, reduce cost, the shaft shoulder transition of rotating shaft main body both sides is level and smooth naturally.
The utility model is achieved in that a kind of sunshading board metal rotating shaft; Comprise the pipe with flat side, said flat side's below is the pipe main body, and said pipe main body and flat side's intersection is the shaft shoulder; It is characterized in that: the flat side of said pipe is recessed, and the sectional shape of the said shaft shoulder is circular arc.
The said shaft shoulder is tangent near the circle at the circular arc of pipe main body one side and pipe main body place, forms level and smooth transition.
The said shaft shoulder and flat side's joint is for seamlessly transitting.
Said flat side confirms through following formula to the distance on shaft shoulder top: P=(0.5 ~ 1.5) * R, and wherein P is the distance of flat side to shaft shoulder top, R is the radius of the circular arc that sectional shape was of the shaft shoulder.
The width of the said shaft shoulder is confirmed through following formula: W=(1.0 ~ 2.0) * R, and wherein W is the width of the shaft shoulder, R is the radius of the circular arc that sectional shape was of the shaft shoulder.
The beneficial effect of the utility model is: the shaft shoulder that recessed flat side and cross section are circular arc; The utility model is achieved in course of working, accomplishes once-through; Thereby reduced manufacturing procedure, the shaft shoulder that the elimination subsequent handling causes pipe is parabolical influence in the middle of losing circle and flat side.
Description of drawings
Fig. 1 is the cross section structure schematic representation of the pipe of existing technology nylon material sunshading board rotating shaft.
Fig. 2 is the cross section structure schematic representation of the pipe of existing technology metal tube sunshading board rotating shaft.
Fig. 3 is the cross section structure schematic representation of the utility model pipe.
Among the figure: 1, unnecessary material; 2, flat side; 3, pipe; 4, pipe main body; 5, the shaft shoulder.
Embodiment
According to Fig. 3, the utility model comprises the rotating shaft main body, and said rotating shaft main body is the pipe 3 with flat side 2; Said flat side's 2 below is a pipe main body 4; Said pipe main body 4 is the shaft shoulder 5 with flat side's 2 intersection, and the flat side 2 of said pipe 3 is recessed, and the sectional shape of the said shaft shoulder 5 is circular arc.The said shaft shoulder 5 is tangent near the circle at the circular arc of pipe main body 4 one sides and pipe main body 4 places, forms level and smooth transition.The said shaft shoulder 5 and flat side's 2 joint is for seamlessly transitting.D is the pipe diameter among the figure, and H is flat side's height.
Said flat side 2 confirms through following formula to the distance on the shaft shoulder 5 tops: P=(0.5 ~ 1.5) * R, and wherein P is the distance of flat side to shaft shoulder top, R is the radius of the circular arc that sectional shape was of the shaft shoulder.
The width of the said shaft shoulder 5 is confirmed through following formula: W=(1.0 ~ 2.0) * R, and wherein W is the width of the shaft shoulder, R is the radius of the circular arc that sectional shape was of the shaft shoulder.
Claims (5)
1. a sunshading board metal rotating shaft comprises the rotating shaft main body, and said rotating shaft main body is the pipe with flat side; Said flat side's below is the pipe main body; Said pipe main body and flat side's intersection is the shaft shoulder, it is characterized in that: the flat side of said pipe is recessed, and the sectional shape of the said shaft shoulder is circular arc.
2. according to the described a kind of sunshading board metal rotating shaft of claim 1, it is characterized in that: the said shaft shoulder is tangent near the circle at the circular arc of pipe main body one side and pipe main body place, forms level and smooth transition.
3. according to the described a kind of sunshading board metal rotating shaft of claim 1, it is characterized in that: the said shaft shoulder and flat side's joint is for seamlessly transitting.
4. according to the described a kind of sunshading board metal rotating shaft of claim 1; It is characterized in that: said flat side confirms through following formula to the distance on shaft shoulder top: P=(0.5 ~ 1.5) * R; Wherein P is the distance of flat side to shaft shoulder top, and R is the radius of the circular arc that sectional shape was of the shaft shoulder.
5. according to the described a kind of sunshading board metal rotating shaft of claim 1, it is characterized in that: the width of the said shaft shoulder is confirmed through following formula: W=(1.0 ~ 2.0) * R, and wherein W is the width of the shaft shoulder, R is the radius of the circular arc that sectional shape was of the shaft shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204760956U CN202326677U (en) | 2011-11-25 | 2011-11-25 | Sunshade board metal rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204760956U CN202326677U (en) | 2011-11-25 | 2011-11-25 | Sunshade board metal rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326677U true CN202326677U (en) | 2012-07-11 |
Family
ID=46438657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204760956U Expired - Lifetime CN202326677U (en) | 2011-11-25 | 2011-11-25 | Sunshade board metal rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273918A (en) * | 2019-06-24 | 2019-09-24 | 浙江华丰电动工具有限公司 | A kind of capacity eccentric bearing with oriented structure |
-
2011
- 2011-11-25 CN CN2011204760956U patent/CN202326677U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273918A (en) * | 2019-06-24 | 2019-09-24 | 浙江华丰电动工具有限公司 | A kind of capacity eccentric bearing with oriented structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |