CN101025188A - Variable torque rotary shaft - Google Patents
Variable torque rotary shaft Download PDFInfo
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- CN101025188A CN101025188A CN 200610007815 CN200610007815A CN101025188A CN 101025188 A CN101025188 A CN 101025188A CN 200610007815 CN200610007815 CN 200610007815 CN 200610007815 A CN200610007815 A CN 200610007815A CN 101025188 A CN101025188 A CN 101025188A
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- China
- Prior art keywords
- rotary shaft
- variable torque
- torque rotary
- axis body
- sleeve part
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Abstract
The invention relates to a variable torsion rotating shaft, comprising: a first part whose first side is equipped with a shaft body part with an outer surface; and a second part whose second side is equipped with a sleeve part with an inner surface, where at least one groove is arranged on the inner surface and at least one concave block is arranged on the outer surface. Besides, the sleeve part is pin-jointed at the shaft body part, and the outer surface contacts with the inner surface. Thus, because it uses variation of contact area between the shaft body part and the sleeve part to provide torsions at different values, the shaft body part and the sleeve part can not be worn easily by friction.
Description
Technical field
The invention relates to a kind of variable torque rotary shaft, refer to a kind of nonabradable variable torque rotary shaft especially.
Background technique
Fig. 1 is the schematic perspective view of known variable torque rotary shaft, and it comprises public axial region 11 and female cover portion 12.Wherein, public axial region 11 is convexly equipped with axis body portion 13 in its side surface 111, and public axial region 11 is provided with one first fixing part 14 in its other end with respect to axis body portion 13.Female cover portion 12 digs in its side surface 121 and is provided with sleeve 15, and female cover portion 12 is provided with one second fixing part 16 in its other end with respect to side surface 121.In addition, the side surface 111 of public axial region 11 convexes with first projection 112,113, and the side surface 121 of female cover portion 12 also convexes with second projection 122,123.
When the running of known variable torque rotary shaft, the axis body portion 13 of public axial region 11 embeds in the sleeve 15 of female cover portion 12, makes the side surface 121 of side surface 111 and female cover portion 12 of public axial region 11 keep in touch.And when the public axial region 11 of known variable torque rotary shaft during with respect to 12 rotations of mother's cover portion, be convexly set in first projection 112,113 of the side surface 111 of public axial region 11 and just can be according to angle of swing offset with second projection 122,123 of the side surface 121 that is convexly set in female cover portion 12.When first projection 112,113 and second projection 122,123 offseted, the positive pressure (friction pressure) that is present between public axial region 11 and the female cover portion 12 was bigger, makes known variable torque rotary shaft that the torsion of bigger numerical can be provided; And when first projection 112,113 and second projection 122,123 intermeshed, the positive pressure (friction pressure) that is present between public axial region 11 and the female cover portion 12 was then less, made known variable torque rotary shaft that the torsion than fractional value only can be provided.In addition, known variable torque rotary shaft is to utilize to put on public axial region 11 provides different numerical value with the variation of the positive pressure (friction pressure) of female cover portion 12 torsion, and cooperate to ranked first the position that projection 112,113 and second projection 122,123 are convexly set in the side surface 121 of the side surface 111 of public axial region 11 and female cover portion 12 respectively, known variable torque rotary shaft can provide the torsion of different numerical value in the different rotary angle.
But the public axial region of known variable torque rotary shaft can't rotate smoothly with respect to mother's cover portion.Moreover, under the environment that frequent positive pressure (friction pressure) changes, the side surface 111 of the public axial region 11 of known variable torque rotary shaft and first projection 112,113 that is convexly equipped with, and the side surface 121 of female cover portion 12 weares and teares because of the effect of friction pressure easily with second projection 122,123 that is convexly equipped with, make its torsion numerical value that can provide produce the variation that to expect, and then cause known variable torque rotary shaft disabler.
Summary of the invention
The object of the present invention is to provide a kind of variable torque rotary shaft.
For achieving the above object, variable torque rotary shaft provided by the invention comprises:
One first portion, one first side of this first portion is provided with an axis body portion, and this axis body portion has an outer surface; And
One second portion, one second side of this second portion is provided with a sleeve part, and this sleeve part has an internal surface, and this sleeve part is articulated in this axis body portion, and this outer surface contacts with this internal surface;
Wherein, at least one groove is arranged at this internal surface, and at least one depression block is arranged at this outer surface.
Described variable torque rotary shaft, wherein this first portion is provided with one first fixing part with respect to one the 3rd side of this axis body portion, and at least one first fixed hole is arranged at this first fixing part.
Described variable torque rotary shaft, wherein this second portion is provided with one second fixing part with respect to one the 4th side of this sleeve part, and at least one second fixed hole is arranged at this second fixing part.
Described variable torque rotary shaft, wherein this axis body portion fastens close fit in this sleeve part.
Described variable torque rotary shaft, wherein when one first angle is rotated with respect to this second portion by this first portion, has one first area of contact and one first frictional force between this outer surface and this internal surface, when one second angle is rotated with respect to this second portion by this first portion, has one second area of contact and one second frictional force between this outer surface and this internal surface.
Described variable torque rotary shaft, wherein when this first portion rotates to this first angle with respect to this second portion, this groove and this depression block interlace out, and when one second angle was rotated with respect to this second portion by this first portion, it is right that this groove and this depression block are practised physiognomy.
Described variable torque rotary shaft, wherein this first area of contact and this first frictional force are less than this second area of contact and this second frictional force.
Described variable torque rotary shaft, wherein this sleeve part also comprises a circular trough, and this internal surface is positioned at this circular trough, and this groove is positioned at this internal surface.
Described variable torque rotary shaft, wherein this axis body portion also comprises a cylindrical body, and this outer surface is positioned at this cylindrical body, and this depression block is positioned at this outer surface.
Therefore, variable torque rotary shaft of the present invention can be by at least one depression block that is arranged at its axis body portion outer surface respectively and at least one groove that is arranged at its sleeve part internal surface, make the area of contact (rotating shaft friction area) that is present between its axis body portion and its sleeve part can be different and the mode of change, the torsion of different numerical value is provided in different rotary angle position along with the angle of swing of variable torque rotary shaft of the present invention.On the other hand, owing to variable torque rotary shaft of the present invention is the torsion that the variation of the area of contact (rotating shaft friction area) between utilization its axis body portion and the sleeve part provides different numerical value.Moreover, when variable torque rotary shaft of the present invention rotates, " groove " that lay respectively at the sleeve part of variable torque rotary shaft of the present invention and axis body portion reaches " depression block " and all is not positioned on the rubbing surface (surface of contact of the outer surface of axis body portion and the internal surface of sleeve part), so both are also not easy to wear.Therefore, variable torque rotary shaft of the present invention not only can provide the torsion of bigger numerical, and it is durable far beyond known variable torque rotary shaft, is difficult for causing losing efficacy because of its component wear.
The first portion of variable torque rotary shaft of the present invention can be provided with first fixing part of any kenel with respect to one the 3rd side of its axis body portion, and its preferable digging is provided with a plurality of first fixed holes.The second portion of variable torque rotary shaft of the present invention can be provided with second fixing part of any kenel with respect to one the 4th side of its sleeve part, and its preferable digging is provided with a plurality of second fixed holes.The sleeve part of variable torque rotary shaft of the present invention can more comprise one and have cell body, and it is preferably circular trough.The circular trough of the sleeve part of variable torque rotary shaft of the present invention can dig be provided with any kenel groove in its internal surface, this groove is preferably a cut.The circular trough of the sleeve part of variable torque rotary shaft of the present invention can dig be provided with any number groove in its internal surface, its number is preferable between 1 to 3.The axis body portion of variable torque rotary shaft of the present invention can also comprise one and have cylinder, and it is preferably cylindrical body.The cylindrical body of the axis body portion of variable torque rotary shaft of the present invention can have the depression block of any number in its outer surface, and its number is preferable between 2 to 8.Variable torque rotary shaft of the present invention can apply in any electronic equipment, and it is preferable to apply between the display screen of a mobile computer and the mobile computer main body or between the display screen and mobile phone main body of a mobile phone.
Description of drawings
Fig. 1 is the schematic perspective view of known variable torque rotary shaft.
Fig. 2 is the schematic perspective view of the variable torque rotary shaft of the present invention's first preferred embodiment.
Schematic representation when Fig. 3 is applied to a mobile computer for the variable torque rotary shaft of the present invention's first preferred embodiment.
Fig. 4 A is the generalized section of the variable torque rotary shaft of the present invention's first preferred embodiment, and the depression block that wherein is positioned at the axis body portion of first portion " staggers " mutually with the groove of the sleeve part that is arranged at second portion.
Fig. 4 B is the generalized section of the variable torque rotary shaft of the present invention's first preferred embodiment, and the depression block that wherein is positioned at the axis body portion of first portion " is faced " mutually with the groove of the sleeve part that is arranged at second portion.
Embodiment
Fig. 2 is the schematic perspective view of the variable torque rotary shaft of the present invention's first preferred embodiment, and it comprises first portion 2 and second portion 3.Wherein, first side 201 of first portion 2 convexes with axis body portion 21, and first portion 2 is provided with one first fixing part 22 in its 3rd side 202 with respect to axis body portion 21, and this first fixing part 22 also digs and is provided with three first fixed holes 221; Second side 301 of second portion 3 is provided with sleeve part 31, and second portion 3 is provided with one second fixing part 32 in its 4th side 302 with respect to sleeve part 31, and this second fixing part 32 also digs and is provided with three second fixed holes 321.As shown in Figure 2, axis body portion 21 in its outer surface 211 dig be provided with three the depression blocks 212, and adjacent two the depression 212 of blocks be provided with strengthening rib 213, to keep the structural strength of axis body portion 21.On the other hand, 31 of the sleeve parts of second portion 3 are provided with groove 312 in its internal surface 311.
As for the operation principles and the advantage of the variable torque rotary shaft of the present invention's first preferred embodiment, will cooperate Fig. 4 A and Fig. 4 B be described in detail in after.
Schematic representation when Fig. 3 is applied to a mobile computer for the variable torque rotary shaft of the present invention's first preferred embodiment, wherein first fixing part 22 of the first portion 2 of the variable torque rotary shaft of the present invention's first preferred embodiment is incorporated into the joining portion 241 of the face frame 24 of display screen 23, and second fixing part 32 of its second portion 3 then is incorporated into the joining portion 341 of the housing 34 of mobile computer main body 33.At this moment, sleeve part 31 is articulated in axis body portion 21, and the internal surface 311 of the outer surface 211 of axis body portion 21 and sleeve part 31 keeps in touch.So, the display screen 23 of mobile computer just is incorporated into mobile computer main body 33, and the torsion of the different numerical value that provide in the different rotary angular orientation of the variable torque rotary shaft of the present invention's first preferred embodiment.
Fig. 4 A and Fig. 4 B are among Fig. 2, along the generalized section of the variable torque rotary shaft of the present invention's first preferred embodiment of A-A ' hatching gained.Wherein, Fig. 4 A shows the situation when having one " first area of contact " between the first portion of the variable torque rotary shaft of the present invention's first preferred embodiment and the second portion, and 4B then shows the situation that has " second area of contact " between the first portion of the variable torque rotary shaft of the present invention's first preferred embodiment and second portion.
Shown in Fig. 4 A, when the first portion 2 of the variable torque rotary shaft of the present invention's first preferred embodiment was one " first angle " with respect to second portion 3, digging the depression block 212 of being located at axis body portion 21 was " to stagger mutually " with the groove 312 that is arranged at sleeve part 31.At this moment, the section length of side that is present in the first portion 2 of variable torque rotary shaft of the present invention's first preferred embodiment and " first area of contact " between the second portion 3 length (counterclockwise) that is " circular arc BB ' " cuts the length (counterclockwise) of " circular arc C C ' ".
On the other hand, shown in Fig. 4 B, when the first portion 2 of the variable torque rotary shaft of the present invention's first preferred embodiment is one " second angle " with respect to second portion 3, dig the depression block 212 of the axis body portion 21 that is located at first portion 2 and the groove 312 that is arranged at sleeve part 31 " mutually in the face of ".At this moment, the section length of side that is present in the first portion 2 of variable torque rotary shaft of the present invention's first preferred embodiment and " second area of contact " between the second portion 3 is the length (counterclockwise) of " circular arc DD ' ", and its length is identical with the length of Fig. 4 A " circular arc BB ' ".Hence one can see that, is present in the first portion 2 of Fig. 4 A and " first area of contact " between the second portion 3 less than " second area of contact " between first portion 2 that is present in Fig. 4 B and the second portion 3.
In addition, because the proper direct ratio of numerical value of the torsion that the variable torque rotary shaft of the present invention's first preferred embodiment can provide and be present in its first portion and its second portion between area of contact, so the variable torque rotary shaft of the present invention's first preferred embodiment is less at following torsion that can provide of the situation of Fig. 4 A, and the variable torque rotary shaft of the present invention's first preferred embodiment is bigger at following torsion that can provide of the situation of Fig. 4 B.
In sum, variable torque rotary shaft of the present invention can be by at least one depression block and at least one groove that is arranged at the internal surface of its sleeve part of the outer surface that is arranged at its axis body portion respectively, make the area of contact (rotating shaft friction area) that is present between its axis body portion and its sleeve part and the mode that change different, the torsion of different numerical value is provided in different rotary angle position along with the angle of swing of variable torque rotary shaft of the present invention.On the other hand, owing to variable torque rotary shaft of the present invention is the torsion that the variation of the area of contact (rotating shaft friction area) between utilization its axis body portion and the sleeve part provides different numerical value, so the internal surface of the outer surface of the axis body portion of variable torque rotary shaft of the present invention and sleeve part and be not easy to wear and tear because of the variation of frequent positive pressure (rubbing surface pressure).Moreover, when variable torque rotary shaft of the present invention rotates, " groove " that lay respectively at the sleeve part of variable torque rotary shaft of the present invention and axis body portion reaches " depression block " and all is not positioned on the rubbing surface (surface of contact of the outer surface of axis body portion and the internal surface of sleeve part), so both are also not easy to wear.Therefore, variable torque rotary shaft of the present invention not only can provide the torsion of bigger numerical, and it is durable far beyond known variable torque rotary shaft, is difficult for causing losing efficacy because of its component wear.
The foregoing description is only given an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (9)
1. variable torque rotary shaft comprises:
One first portion, one first side of this first portion is provided with an axis body portion, and this axis body portion has an outer surface; And
One second portion, one second side of this second portion is provided with a sleeve part, and this sleeve part has an internal surface, and this sleeve part is articulated in this axis body portion, and this outer surface contacts with this internal surface;
Wherein, at least one groove is arranged at this internal surface, and at least one depression block is arranged at this outer surface.
2. variable torque rotary shaft as claimed in claim 1 is characterized in that, wherein this first portion is provided with one first fixing part with respect to one the 3rd side of this axis body portion, and at least one first fixed hole is arranged at this first fixing part.
3. variable torque rotary shaft as claimed in claim 1 is characterized in that, wherein this second portion is provided with one second fixing part with respect to one the 4th side of this sleeve part, and at least one second fixed hole is arranged at this second fixing part.
4. variable torque rotary shaft as claimed in claim 1 is characterized in that, wherein this axis body portion fastens close fit in this sleeve part.
5. variable torque rotary shaft as claimed in claim 1, it is characterized in that, wherein when one first angle is rotated with respect to this second portion by this first portion, has one first area of contact and one first frictional force between this outer surface and this internal surface, when one second angle is rotated with respect to this second portion by this first portion, has one second area of contact and one second frictional force between this outer surface and this internal surface.
6. variable torque rotary shaft as claimed in claim 5, it is characterized in that, wherein when this first portion rotates to this first angle with respect to this second portion, this groove and this depression block interlace out, when one second angle was rotated with respect to this second portion by this first portion, it is right that this groove and this depression block are practised physiognomy.
7. variable torque rotary shaft as claimed in claim 5 is characterized in that, wherein this first area of contact and this first frictional force are less than this second area of contact and this second frictional force.
8. variable torque rotary shaft as claimed in claim 1 is characterized in that wherein this sleeve part also comprises a circular trough, and this internal surface is positioned at this circular trough, and this groove is positioned at this internal surface.
9. variable torque rotary shaft as claimed in claim 1 is characterized in that, wherein this axis body portion more comprises a cylindrical body, and this outer surface is positioned at this cylindrical body, and this depression block is positioned at this outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610007815 CN101025188A (en) | 2006-02-17 | 2006-02-17 | Variable torque rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610007815 CN101025188A (en) | 2006-02-17 | 2006-02-17 | Variable torque rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101025188A true CN101025188A (en) | 2007-08-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610007815 Pending CN101025188A (en) | 2006-02-17 | 2006-02-17 | Variable torque rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101025188A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544271A (en) * | 2020-05-10 | 2020-08-18 | 黄柏清 | Medical foot massage stasis-dispersing rehabilitation equipment |
-
2006
- 2006-02-17 CN CN 200610007815 patent/CN101025188A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544271A (en) * | 2020-05-10 | 2020-08-18 | 黄柏清 | Medical foot massage stasis-dispersing rehabilitation equipment |
| CN111544271B (en) * | 2020-05-10 | 2022-05-13 | 黄柏清 | Medical foot massage stasis-dispersing rehabilitation equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |