CN107600273A - Switching mode folding crank - Google Patents
Switching mode folding crank Download PDFInfo
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- CN107600273A CN107600273A CN201710914727.4A CN201710914727A CN107600273A CN 107600273 A CN107600273 A CN 107600273A CN 201710914727 A CN201710914727 A CN 201710914727A CN 107600273 A CN107600273 A CN 107600273A
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- crank
- spindle nose
- folding
- switch
- rotary shafts
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Abstract
A kind of switching mode folding crank, with two critical piece switch cranks and positioning spindle nose, wherein positioning spindle nose is provided with two kinds of different switch crank rotary shafts, a kind of X rotary shafts are in the lower section of middle axial interface, it is perpendicular with the side of positioning spindle nose, another Z rotary shafts be positioning spindle nose central shaft on, it is perpendicular with X rotary shafts；Connect and be locked on positioning spindle nose using switch crank is worn to lock, switch crank should be able to rotate 180 degree on positioning spindle nose；Because no any expansion link, hollow shaft, spring etc. aid in spare and accessory parts, and the extensive cooperation of low side is taken, error 0.5mm nor affects on service precision and firm durability, and selection is various, it is easy to manufacture, simple to operate, easy to maintenance, cost is cheap, it is widely used, particularly folding efficiency exceeds well over 100%, and real breakthrough is achieved in folding crank, folding pedals technical field, and its technological progress meaning is extremely obvious.
Description
Technical field
The present invention relates to a kind of switching mode folding crank in bicycle art, structure is super succinct, and operation is quick firm, folding
The even remote super a hundred per cent of folded efficiency, it is the new breakthrough of folding crank.
Background technology
Bicycle pedal stretches out 25cm width to both sides, eliminates this 25cm width, is one for folded bicycle
Global problem, panoramic folding pedals, folding crank are broken through without one so far.Medium-sized folding efficiency one
As 50% or so, the best brand of product that a pair of the hundreds of members of high-grade even aluminium alloy is complicated, weight is very big, folding efficiency
Also it is not more than 70%.Many designs for pursuing high folding efficiency, also among exploration.Such as Chinese invention：One kind is new to roll over
Folded crank（CN20141106287096）, a kind of hollow axis is devised, crank is accommodated into axis by spring, efficiency
It is very high, it is important to how to realize installing and using and conveniently repairing for low cost.For another example, Chinese invention：Sleeve type fast folding pin
Pedal（CN2017102007263）, major diameter shaft part can be inserted and received by the rotary shaft on tang, efficiency is also very high.But ride
Caused bending moment of torsion is very big, all very high to intensity and required precision, and locking locknut need to be reinforced with spanner.Current newest skill
Art shows, complicated in order to reach efficient folding, coordinates precision, and cost rises violently, and can bring new problem.
The content of the invention
To realize above-mentioned technical goal, the technical solution used in the present invention is：Switching mode folding crank has two masters
Want part：Crank and positioning spindle nose are switched, wherein positioning spindle nose is provided with a middle axial interface, for that will position spindle nose plugged and fixed
On axis, positioning spindle nose is provided with two kinds of different switch crank rotary shafts, a kind of X rotary shafts in the lower section of middle axial interface,
With position spindle nose side it is perpendicular, another Z rotary shafts be positioning spindle nose central shaft on, it is perpendicular with X rotary shafts；
Switch crank and positioning spindle nose are provided with the jack hole accordingly coordinated, and locating shaft is connect and be locked at using switch crank is worn to lock
On head, switch crank should be able to rotate 180 degree on positioning spindle nose.The first described X rotation shaft structure, switching the top of crank is
One folding storehouse, folds storehouse shape such as dustpan and shares four faces, two sides are spigot surface, and the back side is strength keel, is led in both sides
Symmetrical jack hole is provided with to face, stud is provided with the spigot surface of side, crank arm has two kinds of different structure directions, when
When switching the bottom surface connecting crank arm of crank, it is horizontal to switch the jack hole on crank, when a side of switch crank connects
When connecing crank arm, the jack hole switched on crank is then longitudinal, and pedal interface screw is provided with the lower end of crank arm；Due to opening
Closing the jack hole on crank has horizontal, the two kinds of different structure directions in longitudinal direction, and the installation to locking bolt also just has horizontal and vertical
Two kinds of different directions, when to lock fasten laterally wear connect when, switch crank be in X rotary shafts do significantly somersault upset 180
Degree, when to lock fasten longitudinal direction wear connect when, switch crank be to do roll by a small margin to turn over turnback in X rotary shafts.The locating shaft
In six faces of head, two sides and two spigot surface shapes for folding storehouse are completely the same, and its width is slightly less than between two spigot surfaces
Away from the application condition that coordinates of both width, side and spigot surface it is extensive, gap arrives greatly 0.5mm and still belongs to normal, middle axial interface institute
It is front in face, is provided with middle axial interface and connects pawl screw socket, relative with front is faying face, and nut is provided with faying face
Groove, axis therefrom insert by axial interface side, is fastened in nut groove side using axis nut by spindle nose is positioned on axis；In
Positioning jack hole is provided with below axial interface, the surface below positioning jack hole is the arc surface of lateral width, it is desirable to is used
After lock is worn and connect, switch crank rotates freely, and arc surface and the gap-ratio on strength keel surface are more extensive, and error is from 0.03 ---
0.3mm belongs to normal；In the upper side of positioning spindle nose, locking screw holes are provided with, when positioning spindle nose and switch crank folds, knot
Strength keel are pressed close in conjunction face, it is desirable to locking screw holes alignment stud.The stud is exactly during fabrication integral piece with switch crank, and one
Material selection carbon steel, titanium alloy, aluminium alloy, magnesium alloy, the carbon fiber of body part are not limited, but using aluminium alloy, magnesium alloy,
During carbon fibre materials, the centre of stud must be provided with the steel through Overheating Treatment and inlay screw rod.The stud is on switch crank
With multiple different positions, therefore lockwheel also has multiple diverse locations, and one of which is on the spigot surface of left side, and second is
On the spigot surface of right side, the 3rd be on the ectosteal right side of dragon a bit, the 4th be in the ectosteal left side of dragon a bit, the 5th be
Between the left and right of keel outside arbitrarily on a bit.The pawl screw socket that connects is on the periphery of middle axial interface, for installing wheel disc pawl,
Then wheel disc is arranged on wheel disc pawl, simpler structure is to set corresponding cooperation screw, and wheel disc, which to be mounted directly to, connects pawl
On screw socket.The pedal interface screw is referred to as outside in keel side, and pedal is arranged on interface from outside, in switch crank folding
When folded, pedal is in riding position, when unclamping lockwheel, when overturning crank 180 degree, in the position of pedal is just turned to from outside
Side, pedal are changed into inwardly stretching out from protruding.Second of Z rotation shaft structures, positioning spindle nose is in the lower section of middle axial interface
There is provided annular lock groove, positioning jack hole is opened in annular lock groove, Y rotary shafts just on the center vertical line of annular lock groove, this
Folding storehouse on Shi Kaiguan cranks is a cylindrical cavity, on the position of alignment annular lock groove, is provided with a side
Stud, lockhole is provided with another relative side；During installation, positioning spindle nose insertion cylindrical shape is folded into storehouse, will be to locking spiral shell
Cap is tightened on lockhole, and lockwheel is arranged on stud；Now to lock fasten and the effect of lockwheel two combine into one.It is described on lockhole
When being tightened to locknut, its length is slightly less than the distance from side to annular lock groove internal diameter, and to locknut and annular lock groove
Cooperation slightly have gap, therefore when tightening to locknut, switch crank and positioning spindle nose allow mutually to rotate but can not depart from,
Now rotating lockwheel makes lockwheel screw rod lock the riding position of pedal through positioning jack hole, rotates lockwheel and makes its screw rod from fixed
Exited in the jack hole of position, stir crank arm and 180 degree is rotated centered on Z axis, then rotation lock wheel locking folding position, then pedal
180 degree is rotated to be changed into inwardly stretching out from protruding.The switch crank has the advantage of traditional crank, either X rotary shafts
Or Z rotation shaft structures, crank arm are applied to linear pattern, warpage type, the various contour structures of arc line type, particularly outside lateral bend
Crank arm, unclamp lockwheel upset 180 when, crank arm is changed into inside lateral bend, so that the distance of both sides pedal is significantly
Less than the length of axis, i.e. folding efficiency far surpasses 100%.
The present invention only positioning spindle nose and switch two critical pieces of crank, are connect using being worn to lock, lockwheel controlling switch, not had
There is the cooperation of any expansion link, hollow shaft high-technology condition, also aid in spare and accessory parts without any additional connecting rod, spring, and
The extensive cooperation of low side is taken between two parts, error 0.5mm nor affects on service precision and firm durability, and selection is more
Sample, easy to manufacture, simple to operate, easy to maintenance, cost is cheap, widely used, and particularly folding efficiency far surpasses 100%, is folding
Real breakthrough is achieved in crank, folding pedals technical field, its technological progress meaning is extremely obvious.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment, the invention will be further described.
Fig. 1 is horizontal jack hole switching mode folding crank spare and accessory parts structural representation disclosed by the invention.
Fig. 2 is longitudinal jack hole switching mode folding crank spare and accessory parts structural representation disclosed by the invention.
Fig. 3, Fig. 4 are horizontal jack hole switch crank mounting structure schematic diagrams disclosed by the invention.
Fig. 5, Fig. 6 are longitudinal jack hole switch crank mounting structure schematic diagrams disclosed by the invention.
Fig. 7 is another lockwheel positional structure schematic diagram disclosed by the invention.
Fig. 8, Fig. 9 are linear pattern crank arm pedal foldable structure schematic diagrames disclosed by the invention.
Figure 10, Figure 11 are that horizontal jack hole folding efficiency disclosed by the invention far surpasses 100% structural representation.
Figure 12, Figure 13 are that longitudinal jack hole folding efficiency disclosed by the invention far surpasses 100% structural representation.
Figure 14 is Z rotary shafts switching mode folding crank spare and accessory parts structural representation disclosed by the invention.
Figure 15 .1 Figure 15 .2, Figure 15 .3 are Z rotary shaft switching mode folding crank folding process schematic diagrames.
In figure, 2.1 be horizontal jack hole, and 2.2 be locking screw holes, and 2.3 be middle axial interface, and 2.31 be to connect pawl screw socket, and 2 are
Spindle nose is positioned, 2.4 be nut groove, and 3.1 be that lock is fastened, and 1.41 be to inlay screw rod, and 1.4 be stud, and 1.3 be jack hole, and 1.2 be strong
Power keel, XX are X rotary shafts, and 1.1 be to fold storehouse, and 3.2 be to locknut, and 4 be lockwheel, and 1 is crank, and 1A is crank arm, 1.5
It is pedal interface screw, 5 be pedal, and ZZ is Z rotary shafts.6 be wheel disc, and 7 be wheel disc pawl, and 1.1A is barrel-shaped folding storehouse, and 2.5 be ring
Shape locked groove, 1.3A are lockholes.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, switching mode folding crank has two critical pieces：Switch crank
1 and positioning spindle nose 2, wherein positioning spindle nose 2 be provided with a middle axial interface 2.3, for will position the plugged and fixed of spindle nose 2 in axis
On, positioning spindle nose 2 is provided with two kinds of different switch crank rotary shafts, a kind of X rotary shafts XX in the lower section of middle axial interface 2.3,
It is perpendicular with the side of positioning spindle nose 2, and positioning jack hole 2.1 is opened up along X-direction, another Z rotary shafts ZZ is fixed
It is perpendicular with X rotary shafts on the center line of position spindle nose 2；Be provided with the jack hole 1.3 that accordingly coordinates on switch crank 1, using pair
Lock wears switch crank 1 on the positioning spindle nose 2 for meeting and being locked at X rotary shafts XX, switchs crank 1 to be that X rotates to locking bolt 3.1
Axle, 180 degree should be able to be rotated on positioning spindle nose 2；The length requirement that 3.1 are fastened to lock is equal to the width for switching crank 1, when to locking spiral shell
Cap 3.2 and when lock is fastened 3.1 reinforcings and tightened, switch crank 1 should be able to be freely to rotate to lock for axle.Embodiment one：The first X turns
Moving axis structure, the top of switch crank 1 is a folding storehouse 1.1, folds the shape of storehouse 1.1 such as dustpan and shares four faces, two sides
For spigot surface, the back side is strength keel 1.2, and symmetrical jack hole 1.3 is provided with the spigot surface of both sides, is set on the spigot surface of side
There is stud 1.4, crank arm 1A has two kinds of different structure directions, when switching the bottom surface connecting crank arm 1A of crank 1, switch
Jack hole 1.3 on crank 1 is horizontal, when switching a side connecting crank arm 1A of crank 1, is switched on crank 1
Jack hole 1.3 is then longitudinal, and pedal interface screw 1.5 is provided with crank arm 1A lower end；Because wearing on switch crank 1 connects
Hole 1.3 has horizontal, the two kinds of different structure directions in longitudinal direction, and the installation to locking bolt 3.1 also just has horizontal and vertical two kinds of differences
Direction, when to lock fasten 3.1 laterally wear connect when, switch crank 1 be on X rotary shafts XX do significantly somersault turn over turnback,
When to lock fasten 3.1 longitudinal direction wear connect when, switch crank 1 be to do roll by a small margin to turn over turnback on X rotary shafts XX.Position spindle nose
In 2 six faces, two sides and two spigot surface shapes for folding storehouse 1.1 are completely the same, and its width is slightly less than two spigot surfaces
The application condition that both the width of spacing, side and spigot surface coordinate is extensive, and gap arrives greatly 0.5mm and still belongs to normal, middle axial interface
2.3 places face are front, are provided with middle axial interface 2.3 and connect pawl screw socket 2.31, and relative with front is faying face, in faying face
Nut groove 2.4 is provided with, axis therefrom inserted by the side of axial interface 2.3, and axis nut is used in the side of nut groove 2.4 by locating shaft
First 2 are fastened on axis；It is the arc surface of lateral width in the lower surface of positioning jack hole 2.1, it is desirable to after lock is worn and connect,
Switch crank 1 rotates freely, and arc surface and the gap-ratio on the surface of strength keel 1.2 are more extensive, and error is from 0.03 --- and 0.3mm is equal
Category is normal；In the upper side of positioning spindle nose 2, locking screw holes 2.2 are provided with, when positioning spindle nose 2 and switch crank 1 folds, knot
Strength keel 1.2 are pressed close in conjunction face, it is desirable to the alignment stud 1.4 of locking screw holes 2.2.The stud 1.4 is during fabrication with switching crank 1
It is exactly integral piece, material selection carbon steel, titanium alloy, aluminium alloy, magnesium alloy, the carbon fiber of integral piece are not limited, but are being used
When aluminium alloy, magnesium alloy, carbon fibre materials, the centre of stud 1.4 must be provided with the steel through Overheating Treatment and inlay screw rod 1.41.
Stud 2.4 has multiple different positions on switch crank 1, therefore lockwheel 4 also has multiple diverse locations, and one of which is
On the spigot surface of left side, second be on the spigot surface of right side, the 3rd be on the ectosteal right side of dragon a bit, the 4th is outside keel
The left side in face a bit, the 5th be between left and right outside keel it is arbitrary a little on.
As shown in fig. 7, the position that lockwheel 4 is set, just on the ectosteal right side of the switch dragon of crank 1 on a bit.
As shown in Fig. 8, Fig. 9, Figure 10, Figure 11, pawl screw socket 2.31 is connect on the periphery of middle axial interface 2.3, for installing
Wheel disc pawl 7, then wheel disc 6 is arranged on wheel disc pawl 7, simpler structure is to set corresponding cooperation screw, and wheel disc 6 is direct
It is installed to and connects on pawl screw socket 2.31.Keel side where pedal interface screw 1.5 is referred to as outside, and pedal 5 is arranged on from outside
On interface, when switching the folding of crank 1, pedal 5 is in riding position, when release lockwheel 4, when overturning crank 180 degree, pedal
5 position is just turned to inner side from outside, and pedal 5 is changed into inwardly stretching out from protruding.
As shown in figure 14, embodiment two：Second of Z rotation shaft structure, positioning spindle nose 2 are set in the lower section of middle axial interface 2.3
Annular lock groove 2.5 is put, positioning jack hole 2.1 is opened in annular lock groove 2.5, and Z rotary shafts ZZ is just in annular lock groove 2.5
On mandrel line, the folding storehouse 1.1A now switched on crank 1 is a cylindrical cavity, in the position of alignment annular lock groove 2.5
On, a side is provided with stud 1.4, and another relative side is provided with lockhole 1.3A；During installation, positioning spindle nose 2 is inserted
Enter cylindrical shape and fold storehouse 1.1A, locknut 3.2 will be tightened on lockhole 1.3A, lockwheel 4 is inlayed into spiral shell installed in stud 1.4
On bar 1.41；Now lock is fastened 3.1 and the effect of lockwheel 4 two combine into one.
As shown in Figure 15 .1, Figure 15 .2, Figure 15 .3, when being tightened on lockhole 1.3A to locknut 3.2, its length is smaller
In the distance of 2.5 internal diameters from side to annular lock groove, and the cooperation to locknut 3.2 and annular lock groove 2.5 slightly has gap, therefore
When tightening to locknut 3.2, switch crank 1 and positioning spindle nose 2 allow mutually to rotate but can not depart from, and now rotate lockwheel 4
Its screw rod is made to lock the riding position of pedal 5 through positioning jack hole 2.1, rotate lockwheel 4 and make its screw rod from positioning jack hole
Exited in 2.1, stir crank arm 1A and 180 degree is rotated centered on Z axis, then rotated lockwheel 4 and lock folding position, then pedal 5
180 degree is rotated to be changed into inwardly stretching out from protruding.
As shown in Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15 .1, Figure 15 .2, Figure 15 .3, switch crank 1 has tradition
The advantage of crank, either X rotary shafts or Z rotation shaft structures, it is each that crank arm 1A is applied to linear pattern, warpage type, arc line type
Kind contour structures, the crank arm 1A of particularly outside lateral bend, when unclamping the upset of lockwheel 4 180, crank arm 1A is changed into inwardly
Lateral bend, so that the distance of both sides pedal 5 is significantly smaller than the length of axis, i.e. folding efficiency far surpasses 100%.
Claims (10)
- A kind of 1. switching mode folding crank, it is characterised in that：Switching mode folding crank has two critical pieces：Switch crank （1）With positioning spindle nose（2）, wherein positioning spindle nose（2）Provided with a middle axial interface（2.3）, for spindle nose will to be positioned（2）Grafting is consolidated It is scheduled on axis, positions spindle nose（2）It is provided with two kinds of different switch crank rotary shafts, a kind of X rotary shafts（XX）Connect in axis Mouthful（2.3）Lower section, with position spindle nose（2）Side it is perpendicular, another Z rotary shafts（ZZ）It is in positioning spindle nose（2）In In mandrel, with X rotary shafts（XX）It is perpendicular；In switch crank（1）With positioning spindle nose（2）The jack hole accordingly coordinated is provided with, Crank will be switched using to lock（1）Wear and connect and be locked at positioning spindle nose（2）On, switch crank（1）Should be able to be in positioning spindle nose（2）On Rotate 180 degree.
- 2. switching mode folding crank as claimed in claim 1, it is characterised in that：The first X rotation shaft structure, switch crank （1）Top be one folding storehouse（1.1）, fold storehouse（1.1）Shape such as dustpan shares four faces, and two sides are spigot surface, the back of the body Face is strength keel（1.2）, symmetrical jack hole is provided with the spigot surface of both sides（1.3）, stud is provided with the spigot surface of side （1.4）, crank arm（1A）With two kinds of different structure directions, when switch crank（1）Bottom surface connecting crank arm（1A）When, open Close crank（1）On jack hole (1.3) be it is horizontal, when switch crank（1）A side connecting crank arm（1A）When, switch Crank（1）On jack hole（1.3）It is then longitudinal, in crank arm（1A）Lower end be provided with pedal interface screw（1.5）；Due to Switch crank（1）On jack hole（1.3）With horizontal, the two kinds of different structure directions in longitudinal direction, to locking bolt（3.1）Installation also With horizontal and vertical two kinds of different directions, fastened when to lock（3.1）Laterally wear when connecing, switch crank（1）It is in X rotary shafts Do significantly somersault and turn over turnback, fastened when to lock（3.1）Longitudinal direction is worn when connecing, and switchs crank（1）It is to do slightly in X rotary shafts Turnback is turned in degree roll.
- 3. switching mode folding crank as claimed in claim 1, it is characterised in that：Position spindle nose（2）Six faces in, two sides Face is with folding storehouse（1.1）Two spigot surface shapes it is completely the same, its width is slightly less than the width of two guiding interplanar distances, side with The application condition that both spigot surfaces coordinate is extensive, and gap arrives greatly 0.5mm and still belongs to normal, middle axial interface（2.3）Place face is front, In middle axial interface（2.3）It is provided with and connects pawl screw socket（2.31）, relative with front is faying face, and nut groove is provided with faying face （2.4）, axis therefrom axial interface（2.3）Side is inserted, in nut groove（2.4）Side will position spindle nose using axis nut（2） It is fastened on axis；In middle axial interface（2.3）Below be provided with positioning jack hole（2.1）, in positioning jack hole（2.1）Following table Face is the arc surface of lateral width, it is desirable to which after lock is worn and connect, switch crank rotates freely, arc surface and strength keel （1.2）The gap-ratio on surface is more extensive, and error is from 0.03 --- and 0.3mm belongs to normal；In positioning spindle nose（2）Upper side, It is provided with locking screw holes（2.2）, when positioning spindle nose（2）With switch crank（1）During folding, faying face presses close to strength keel（1.2）, Seek locking screw holes（2.2）Alignment stud（1.4）.
- 4. switching mode folding crank as claimed in claim 2, it is characterised in that：Stud（1.4）During fabrication with switching crank （1）It is exactly integral piece, material selection carbon steel, titanium alloy, aluminium alloy, magnesium alloy, the carbon fiber of integral piece are not limited, but are made During with aluminium alloy, magnesium alloy, carbon fibre materials, the centre of stud must be provided with the steel through Overheating Treatment and inlay screw rod （1.41）.
- 5. switching mode folding crank as claimed in claim 2, it is characterised in that：Stud（1.4）In switch crank（1）On have Multiple different positions, therefore lockwheel（4）Also there are multiple diverse locations, one of which is on the spigot surface of left side, and second is On the spigot surface of right side, the 3rd be on the ectosteal right side of dragon a bit, the 4th be in the ectosteal left side of dragon a bit, the 5th be Between the left and right of keel outside arbitrarily on a bit.
- 6. switching mode folding crank as claimed in claim 3, it is characterised in that：Connect pawl screw socket（2.31）In middle axial interface （2.3）Periphery on, for installing wheel disc pawl（7）, then by wheel disc（6）Installed in wheel disc pawl（7）On, simpler structure It is that corresponding cooperation screw, wheel disc are set（6）It to be mounted directly to and connect pawl screw socket（2.31）On.
- 7. switching mode folding crank as claimed in claim 2, it is characterised in that：The pedal interface screw（1.5）In keel Side is referred to as outside, pedal（5）It is arranged on from outside on interface, in switch crank（1）During folding, pedal（5）It is in and rides Position, when release lockwheel（4）, when overturning crank 180 degree, pedal（5）Position just from outside be turned to inner side, pedal（5）From It is protruding to be changed into inwardly stretching out.
- 8. switching mode folding crank as claimed in claim 1, it is characterised in that：Second of Z rotation shaft structures, locating shaft Head（2）In middle axial interface（2.3）Lower section be provided with annular lock groove（2.5）, position jack hole（2.1）It is opened in annular lock groove On, Z rotary shafts（ZZ）Just in annular lock groove（2.5）Central axis on, now switch crank（1）On folding storehouse（1.1A）It is One cylindrical cavity, in alignment annular lock groove（2.5）Position on, on a side provided with stud（1.4）, at another Relative side is provided with lockhole（1.3A）；During installation, spindle nose will be positioned（2）Insert cylindrical shape and fold storehouse（1.1A）, will be to lock Nut（3.2）It is tightened in lockhole（1.3A）On, by lockwheel（4）Installed in stud（1.4）On；Now lock is fastened（3.1）And lockwheel （4）Effect two combine into one.
- 9. switching mode folding crank as claimed in claim 8, it is characterised in that：It is described in lockhole（1.3A）On to locknut （3.2）When tightening, its length is slightly less than from side to annular lock groove（2.5）The distance of internal diameter, and to locknut（1.3A）And ring Shape locked groove（2.5）Cooperation slightly have gap, therefore tightening to locknut（3.2）When, switch crank（1）With positioning spindle nose（2） Allow mutually to rotate but can not depart from, now rotate lockwheel（4）Make lockwheel（4）Screw rod through positioning jack hole（2.1）, locking Pedal（5）Riding position, rotate lockwheel（4）Its screw rod is made from positioning jack hole（2.1）Inside exit, stir crank arm（1A）With 180 degree is rotated centered on Z axis, then rotates lockwheel（4）Folding position is locked, then pedal（5）180 degree is rotated from protruding change Inwardly to stretch out.
- 10. the switching mode folding crank as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, its feature It is：Switch crank（1）Advantage with traditional crank, either X rotary shafts or Z rotation shaft structures, crank arm（1A）It is suitable For linear pattern, warpage type, the various contour structures of arc line type, the crank arm of particularly outside lateral bend, lockwheel is being unclamped（4）Turn over When turning 180, crank arm（1A）It is changed into inside lateral bend, so that both sides pedal（5）Distance be significantly smaller than the length of axis, I.e. folding efficiency far surpasses 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914727.4A CN107600273A (en) | 2017-09-30 | 2017-09-30 | Switching mode folding crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914727.4A CN107600273A (en) | 2017-09-30 | 2017-09-30 | Switching mode folding crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107600273A true CN107600273A (en) | 2018-01-19 |
Family
ID=61067944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710914727.4A Withdrawn CN107600273A (en) | 2017-09-30 | 2017-09-30 | Switching mode folding crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107600273A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273281Y (en) * | 1996-04-26 | 1998-01-28 | 顺德市骑乐多功能自行车有限公司 | Folding crank for pedal of bicycle |
| JP3084607U (en) * | 2001-09-10 | 2002-03-29 | 勇一 小林 | Bicycle escape prevention device |
| TWM329009U (en) * | 2007-05-18 | 2008-03-21 | Biketech Innovation Co Ltd | Rotary folding crank device of a bike |
| CN101633386A (en) * | 2008-07-23 | 2010-01-27 | 上海尚格自行车有限公司 | Combined type folding pedals of bicycle |
| US20110266769A1 (en) * | 2008-07-23 | 2011-11-03 | Early Rider Limited | Pedal Powered Wheeled Vehicle |
| CN207482095U (en) * | 2017-09-30 | 2018-06-12 | 北京微马科技有限公司 | Switching mode folding crank |
-
2017
- 2017-09-30 CN CN201710914727.4A patent/CN107600273A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273281Y (en) * | 1996-04-26 | 1998-01-28 | 顺德市骑乐多功能自行车有限公司 | Folding crank for pedal of bicycle |
| JP3084607U (en) * | 2001-09-10 | 2002-03-29 | 勇一 小林 | Bicycle escape prevention device |
| TWM329009U (en) * | 2007-05-18 | 2008-03-21 | Biketech Innovation Co Ltd | Rotary folding crank device of a bike |
| CN101633386A (en) * | 2008-07-23 | 2010-01-27 | 上海尚格自行车有限公司 | Combined type folding pedals of bicycle |
| US20110266769A1 (en) * | 2008-07-23 | 2011-11-03 | Early Rider Limited | Pedal Powered Wheeled Vehicle |
| CN207482095U (en) * | 2017-09-30 | 2018-06-12 | 北京微马科技有限公司 | Switching mode folding crank |
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