CN108928425A - Rickshaw laborsaving can trample crank device - Google Patents

Abstract

A kind of can laborsaving trample crank device of the present invention about rickshaw, including when rule elements, crank mechanism and transmission mechanism, when rule element there is actuation path；Crank mechanism includes the first crank, the second crank and third crank, and the first crank has the first runner, the second runner and supporting member, and transmission mechanism is arranged between the first runner and the second runner；Wherein crank mechanism is in rotary course, supporting member will be removed along the track in actuation path, and advise element when driving and operably correspond to the first runner and be engaged or be detached from, allow the second crank and third crank relative to the first crank stop or rotary oscillation can be done by transmission mechanism.Thereby, it is possible to reach labor-saving effect and allow crank mechanism can smoothness and safely doing meet the inertia circular motion of ergonomics.

Description

Rickshaw laborsaving can trample crank device

Technical field

The related one kind of the present invention tramples crank technology, espespecially a kind of laborsaving to trample crank device for rickshaw.

Background technique

Modern for the health of body or in order to reduce the discharge amount of pernicious gas and carbon, the kind a part of big city Time carries out, such as jog, walking or riding bicycle movement, wherein riding bicycle due to having short, intermediate range trip Swim effect, thus can more allow the body of rider, the heart, spirit obtain it is optimal releive, and bicycle that is a large amount of in each counties and cities and establishing in a wide range Under special lane, riding bicycle obviously has become one of favorite campaign item of the whole people.

The crank of existing bicycle is the body of rod of a regular length, to connect the mandrel of foot pedal and bicycle, voluntarily Vehicle is to trample foot pedal by user in operation, make foot pedal with axis rotation center progress be with crank length The circular motion of radius, and the elements such as driving device such as fluted disc, chain for driving bicycle, and then bicycle is made to advance.

Existing apply tramples crank device in bicycle, can not rotate in foot pedal to when needing at force, stretch Its long crank and then the length for increasing the arm of force, therefore more laborsaving effect can not be reached, it is setting with existing telescoping crank Meter can not rule and inertia move in a circle laborious for one, and easily lead to user's fatigue tramples crank device.

Summary of the invention

One of present invention purpose, be to provide a kind of rickshaw laborsaving can trample crank device, using increasing force Arm lengths can do rotary oscillation relative to the first crank by the second crank to reach labor-saving effect, to make crank machine Between structure and foot pedal can smoothness and safely do rule inertia circular motion.

In order to achieve the above objectives, the present invention provides a kind of crank device that laborsaving can trample of rickshaw, including advises for the moment Element, a crank mechanism and a transmission mechanism, this when rule element have an actuation path；The crank mechanism includes one first bent Handle, one second crank for connecting first crank and the third crank for being fixed on second crank and arranging alongside one another, should First crank include it is corresponding this when one first runner that is arranged of the rule element and supporting member that is arranged of the corresponding actuation path, this Two cranks are connect by one second runner with first crank；The transmission mechanism is arranged in the inside of first crank and is formed in Between first runner and second runner；Wherein for the crank mechanism in rotary course, which will be along the actuation road The track of diameter is removed, and is corresponded to first runner to rule element operation when driving this and be engaged or be detached from, and pass through the biography Motivation structure allows second crank and the third crank relative to the first crank stop or can do rotary oscillation.

In one embodiment of this invention, an axle sleeve and socket are equipped with far from one end of second crank in first crank A shift(ing) ring in the outer peripheral edge of the axle sleeve, this when rule element be set in the outer peripheral edge of the axle sleeve, which is set in this The outer peripheral edge of shift(ing) ring.

In one embodiment of this invention, which further includes an elastic element, which has a bulge loop, should Elastic element is set in the shift(ing) ring outer peripheral edge and both ends resilient clamp is between the bulge loop and first runner.

In one embodiment of this invention, this when rule element be equipped with multiple first clutch tooths, first runner be equipped with correspond to Respectively first clutch tooth does multiple second clutch tooths of clutch operation.

In one embodiment of this invention, spaced multiple embedded blocks, the shifting are equipped in the inner wall of first runner Rotating ring is equipped with multiple outer abaculus that clutch operation is done with the respectively embedded block.

In one embodiment of this invention, which is an annular concave-convex structure, one including the arrangement of circumferentially formula First intermittent zones, a shrinking zone, one second intermittent zones and a stretching area.

In one embodiment of this invention, which includes an inner arm of an outer arm shell and corresponding outer arm shell engagement Shell, the relative position inside the outer arm shell and the inner arm shell are equipped with one and hold pearl slot, and the transmission mechanism is by multiple ball institutes group At respectively the ball is arranged along the appearance pearl slot.

In one embodiment of this invention, it is spherical to be all equipped with multiple semicircles for the periphery wall of first runner and second runner Pit, for respectively ball accommodating and push.

In one embodiment of this invention, which is arranged in inside the one end of the inner arm shell far from second crank.

In one embodiment of this invention, second crank and the third crank are integrally formed, and in second crank An interval trough is formed between the third crank.

In one embodiment of this invention, one end of second crank forms a ladder block, is equipped with one in the ladder block Perforation, which forms a stepped groove, is connected with a pillar in the stepped groove, which corresponds to the ladder Slot engagement, which wears the perforation and consolidates, and is formed with an interval trough between second crank and the third crank.

In one embodiment of this invention, first runner and second runner are all a spur gear, which is A belt with multiple double wedges.

The present invention also have effects that it is following, in the running can be by the first runner by the setting of shift(ing) ring and elastic element The smoothness done with the second runner and alternately rotated, and then ensure to operate.Thus transmission mechanism is made of multiple balls, can Carry out two dimension or three-dimensional power transmission.It is equipped with corresponding stepped groove equipped with ladder block and third crank using in the second crank, Worn by pillar and connect consolidation, be thus effectively prevented third crank generated because operating for a long time bending deformation or pull from etc. no Good situation.By abutting each other between each ball, transmission generation all very close to each other forward or backwards is either done, more Promote the precision of transmission efficiency and positioning.

Detailed description of the invention

Fig. 1 is the constitutional diagram that the present invention laborsaving can trample that crank device is applied to bicycle.

Fig. 2 is the constitutional diagram that the present invention laborsaving can trample that crank device connects sprocket wheel.

Fig. 3 is the exploded view that the present invention laborsaving can trample crank device.

Fig. 4 is the exploded view of part body of the invention.

Fig. 5 is when rule element cross-sectional view of the invention.

Fig. 6 is the schematic diagram that crank mechanism continuity of the invention operates.

Fig. 7 is the use state cross-sectional view of supporting member of the invention in the first intermittent zones.

Fig. 8 is another visual angle use state cross-sectional view of supporting member of the invention in the first intermittent zones.

Fig. 9 is the use state cross-sectional view of supporting member of the invention in shrinking zone.

Figure 10 is another visual angle use state cross-sectional view of supporting member of the invention in shrinking zone.

Figure 11 is another embodiment exploded view of the second crank and third crank of the invention.

Figure 12 is another embodiment constitutional diagram of the second crank and third crank of the invention.

Figure 13 is the exploded view of another embodiment of the present invention.

Wherein, appended drawing reference：

Element is advised when 10 ...

11 ... caulking grooves

12 ... actuation paths

121 ... first intermittent zones

122 ... shrinking zones

123 ... second intermittent zones

124 ... stretching areas

13 ... first clutch tooths

15 ... fixing seats

151 ... positioning strips

20 ... crank mechanisms

21 ... first cranks

211 ... outer arm shells

212 ... inner arm shells

213 ... supporting members

214 ... axle sleeves

215 ... first runners

2151 ... pits

2152 ... second clutch tooths

2153 ... embedded blocks

2154 ... escape ditch

216 ... shift(ing) rings

217 ... elastic elements

2161 ... bulge loops

2162 ... outer abaculus

218 ... second runners

2181 ... pits

22 ... second cranks

221 ... ladder blocks

222 ... perforation

223 ... pillars

23 ... third cranks

231 ... stepped grooves

232 ... pillars

233 ... perforation

30 ... transmission mechanisms

31 ... balls

31A ... belt

A ... holds pearl slot

B ... interval trough

θ ... is spaced angle

8 ... bicycles

81 ... vehicle frames

83 ... shafts

84 ... foot pedals

85 ... sprocket wheels

86 ... build-in rings

861 ... abaculus

87 ... axis stackers

871 ... caulking grooves

Specific embodiment

Detailed description for the present invention and technology contents, cooperation schema is described as follows, however institute's accompanying drawings only provide ginseng It examines and illustrates to use, be not intended to limit the present invention.

It please refers to shown in Fig. 1 to Fig. 5, what the present invention provided a kind of rickshaw laborsaving can trample crank device, the present embodiment It is to be explained with the sprocket wheel side of a bicycle 8, this bicycle 8 has a vehicle frame 81, installs below the center pillar of vehicle frame 81 There is an axis stacker 87, and be equipped with a shaft 83 at the center of axis stacker 87, another bicycle 8 further includes a pair of foot-operated Plate 84, a sprocket wheel 85, a build-in ring 86 and other necessary devices, of the invention laborsaving can to trample crank device mainly include for the moment Advise element 10, a crank mechanism 20 and a transmission mechanism 30.

When rule element 10 aforementioned build-in ring 86 is mounted on by a fixing seat 15, build-in ring 86 and axis stacker 87 are then It is maintained and being formed in the mutual cooperation of each caulking groove 871 and each abaculus 861 for being formed in build-in ring 86 of axis stacker 87 Fixed, fixing seat 15 is a hollow circular ring, forms multiple positioning strips 151 in the position of its inner peripheral；The present embodiment When rule element 10 be a hollow cylindrical body, cylinder towards the side of fixing seat 15 be equipped with for aforementioned positioning strip 151 insertion One caulking groove 11, with fixing seat 15 mutually fix positioning but can axially move, when rule element 10 a side surface be equipped with one Actuation path 12, this actuation path 12 are an annular concave-convex structure, mainly include one first intermittent zones of circumferentially formula arrangement 121, a shrinking zone 122, one second intermittent zones 123 and a stretching area 124 (as shown in Figure 5)；Separately when advise element 10 actuation 12 behind Fang Ze of path is equipped with multiple first clutch tooths 13.

Crank mechanism 20 include one first crank 21, one second crank 22 and a third crank 23, the one of the first crank 21 End is to wear to advise element 10 and fixing seat 15 when connecing aforementioned；Second crank 22 is connected to the other end of the first crank 21, third crank 23 are fixed on the one end of the second crank 22 far from the first crank 21 of connection, and third crank 23 with the second crank 22 is alongside one another matches If the separate one end fixed with the second crank 22 of third crank 23 is connect for foot pedal 84 above-mentioned.

Further, the first crank 21 includes the inner arm shell 212 that an outer arm shell 211 and corresponding outer arm shell 211 engage, The relative position at 212 both ends of outer arm shell 211 and inner arm shell is respectively equipped with a mutual corresponding through-hole, separately in outer arm shell 211 and interior Relative position inside arm shell 212 is equipped with one and holds pearl slot A, and it is the periphery along outer arm shell 211 and inner arm shell 212 that this, which holds pearl slot A, Institute's structure is set；In addition, it is equipped with a supporting member 213 far from the inside of 22 one end of the second crank in inner arm shell 212, the present embodiment Supporting member 213 is a ball, but is not limited with such kenel, and the one end of the first crank 21 far from the second crank 22 is that connection is aforementioned Sprocket wheel 85.

Further, an axle sleeve 214 is equipped with inside one end of the first crank 21 connection sprocket wheel 85 and be socketed in axle sleeve 214 One first runner 215 of outer peripheral edge, the internal via shape of axle sleeve 214 are mutually coupled with the outer rim shape of aforementioned rotation axis 83 and with spiral shell The locking of the bolting elements such as silk, is respectively equipped with the filler rod and button of mutual buckle in the opposite position of axle sleeve 214 and outer arm shell 211 Slot rotates the rotation for making axle sleeve 214 follow outer arm shell 211, in addition after axle sleeve 214 is worn and connects and be fixed on outer arm shell 211 Axle sleeve 214 is worn again advises element 10 and fixing seat 15 (as shown in Figure 8) when connecing aforementioned.

The periphery wall of first runner 215 is equipped with multiple semicircle spherical pits 2151；Separately the first runner 215 towards when rule member One end of part 10 is equipped with multiple second clutch tooths 2152 that corresponding aforementioned first clutch tooth 13 does clutch；In addition, in the first runner 215 inner wall is equipped with spaced multiple embedded blocks 2153, and in each 2153 apical margin of fixture block and in 215 inner wall shape of the first runner Cheng Youyi escapes ditch 2154.

Further, it is equipped with a shift(ing) ring 216 and an elastic element 217 (as shown in Figure 8) in the inside of the first crank 21, Shift(ing) ring 216 is advised in element 10 and the first runner 215 when being socketed in the outer peripheral edge of axle sleeve 214 and being accommodated in, in shift(ing) ring 216 and the opposite position of axle sleeve 214 be respectively equipped with the filler rod and catching groove of mutual buckle, so that shift(ing) ring 216 be made to follow axle sleeve 214 rotation and rotate and can axially move, periphery wall one end of shift(ing) ring 216 is equipped with a bulge loop 2161, the other end Equipped with multiple outer abaculus 2162, build-in transmission operably is done with embedded block 2153 above-mentioned, or relative to the first runner 215 make rotating motion.Elastic element 217 is to be set in 216 outer peripheral edge of shift(ing) ring and both ends resilient clamp in the convex of shift(ing) ring 216 Between ring 2161 and the first runner 215, with elasticity pushing and pressing shift(ing) ring 216 and when rule element 10 do and reset.

Further, one second runner 218, the second crank 22 are equipped with adjacent to one end of the second crank 22 in the first crank 21 To be connect by the second runner 218 with the first crank 21, the diameter of the second runner 218 less than the first runner 215 diameter, and The gear ratio of one runner 215 and the second runner 218 is an integer, such as:2:1,3:Isosorbide-5-Nitrae:1 etc., similarly in the outer of the second runner 218 Peripheral wall is equipped with multiple semicircle spherical pits 2181.

The transmission mechanism 30 of the present embodiment is rearranged by multiple balls 31, and each ball 31 is along aforementioned appearance pearl slot A Setting, and around being formed between the first runner 215 and the second runner 218, using aforementioned each pit 2151,2181 come to rolling Pearl 31 push or supports only.

It please refers to shown in Fig. 6 to Fig. 8, each foot pedal 84 is corresponded respectively to sole when use and applies active force, in crank When mechanism 20 is rotated in a clockwise direction by top dead-centre (12 o'clock position), since the first crank 21 and the second crank 22 connect The force arm being connected into is greater than traditional type and tramples crank device only by the force arm of single crank, according to principle of moments (M=F*d, F: Active force, d:The arm of force), therefore under torque (Moment) same case, the of the invention crank structure that laborsaving can trample is needed for it The active force of application is smaller, and then labour-saving effect can be obtained.

It holds, the first crank 21 has a top dead-centre, the starting point of the first intermittent zones 121 and the interval angle theta of top dead-centre Be 0~10 degree, wherein with 5 degree be it is preferred, when supporting member 213 enters in the first intermittent zones 121 along actuation path 12, when advise Element 10 and shift(ing) ring 216 will be pushed by 217 elasticity of elastic element, to advise element 10 when allowing away from the first runner 215 directions are removed, be the first runner 215 with when rule element 10 in a release conditions, pass through the outer abaculus 2162 of shift(ing) ring 216 With the mutual build-in of embedded block 2153 of the first runner 215, when continuing to do clockwise rotation with the first crank 21, first Gear 215 will follow the first crank 21, axle sleeve 214 and shift(ing) ring 216 to synchronize and do clockwise rotation, at this time each ball 31 Be to only in each pit 2151 and Rong Zhu slot A without being driven, therefore the second runner 218 be in a stationary state, at second turn While wheel 218 is static, the second crank 22 and third crank 23 and the first crank 21 are in detent relation.

It please refers to shown in Fig. 6, Fig. 9 and Figure 10, then, enters in shrinking zone 122 in supporting member 213 along actuation path 12 When, rule element 10 and shift(ing) ring 216 are mobile towards 215 direction of the first runner when supporting member 213 will push, and enable each first clutch Tooth 13 and each second clutch tooth 2152 are mutually chimeric, and each outer disengaging of abaculus 2162 of shift(ing) ring 216 is embedding with each embedded block 2153 Gu and enter and escape in ditch 2154, the first runner 215 because by when advise element 10, fixing seat 15, build-in ring 86 with middle (center) bearing Joint chair 87 links and is in a stationary state (as shown in Figures 3 and 4), i.e. the first runner 215 will not continue with the first crank 21 Clockwise rotation is done, each ball 31, which will be forced to push, drives the second runner 218 to do anticlockwise rotation, second The second crank 22 and third crank 23 will be driven to do reversed rotation relative to the first crank 21 while runner 218 rotates to put It is dynamic, thus when the rotation of the first crank 21 is to bottom dead centre (6 o'clock position) at a distance of an appropriate position, utilize the second crank 22 Upward swing, can be effectively prevented because force arm length be increased produced by contact to earth or other safety in utilization on ask Topic, and allow crank mechanism 20 and foot pedal 84 that can do to smoothness inertia circular motion.

Further, when supporting member 213 enters in the second intermittent zones 123 along actuation path 12, each constituent element Correlation and actuation relationship are identical into the first intermittent zones 121 as aforementioned supporting member 213；Similarly, in supporting member 213 along work When dynamic path 12 is entered in stretching area 124, the correlation and actuation relationship of each constituent element and aforementioned supporting member 213 enter receipts Contracting area 122 is identical.

In addition, each related elements will follow matching relationship above-mentioned to do phase when the first crank 21 is rotated clockwise The gearing answered, separately when the first crank 21 rotates counterclockwise, each related elements are then done accordingly with opposite matching relationship Gearing, be thus useful under the use condition of bicycle 8.

It please refers to shown in Figure 11 and Figure 12, the second crank 22 and third crank 23, can also other than it can be and be integrally formed Mode is connect by group to be combined, and is formed with an interval trough B (such as Figure 12 institute between the second crank 22 and third crank 23 Show), a ladder block 221 is formed in one end of the second crank 22, and be equipped with a perforation 222 in ladder block 221, separately in neighbouring rank One end of terraced block 221 is connected with a pillar 223, and one end of third crank 23 forms a stepped groove 231, and in stepped groove 231 It is connected with a pillar 232, is separately equipped with a perforation 233 in one end of adjacent stepchain slot 231, with the corresponding stepped groove 231 of ladder block 221 Engagement, each pillar 223,232 are worn corresponding to each perforation 233,222 and connect consolidation, are thus effectively prevented third crank 23 because of length The running of time and generate bending deformation or pull from etc. bad situation.

Please refer to shown in Figure 13, the present invention laborsaving can trample crank device other than can be such as above-described embodiment, the two it Between most apparent difference be the first runner 215 and the second runner 218 is all a spur gear, the transmission mechanism 30 of the present embodiment is then For the belt 31A with multiple double wedges, belt 31A be surround and be connected to the first runner 215 and the second runner 218 it Between, so also with the effects equivalent of previous embodiment.

Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe Various corresponding changes and modifications, but these corresponding changes and modifications can be made according to the present invention by knowing those skilled in the art It all should belong to the protection scope of the claims in the present invention.

Claims (12)

1. a kind of rickshaw laborsaving can trample crank device, which is characterized in that the device includes：

Rule element for the moment has an actuation path；

One crank mechanism, including one first crank, connect one second crank of first crank and be fixed on second crank and One third crank of arranging alongside one another, first crank include it is corresponding this when one first runner that is arranged of rule element and it is corresponding should The supporting member that actuation path is arranged, second crank are connect by one second runner with first crank；And

One transmission mechanism is arranged in the inside of first crank and is formed between first runner and second runner；

Wherein the crank mechanism is in rotary course, when the supporting member along the track in the actuation path by removing, and driving this Correspond to first runner to rule element operation to be engaged or be detached from, and by the transmission mechanism allow second crank with this Three cranks relative to the first crank stop or can do rotary oscillation.

2. rickshaw as described in claim 1 laborsaving can trample crank device, which is characterized in that separate in first crank One end of second crank be equipped with an axle sleeve and be socketed in the axle sleeve outer peripheral edge a shift(ing) ring, this when rule element be set in this The outer peripheral edge of axle sleeve, first runner are set in the outer peripheral edge of the shift(ing) ring.

3. rickshaw as claimed in claim 2 laborsaving can trample crank device, which is characterized in that first crank further includes One elastic element, the shift(ing) ring have a bulge loop, which is set in the shift(ing) ring outer peripheral edge and both ends resilient clamp exists Between the bulge loop and first runner.

4. rickshaw as claimed in claim 3 laborsaving can trample crank device, which is characterized in that this when rule element be equipped with it is more A first clutch tooth, first runner are equipped with multiple second clutch tooths that corresponding respectively first clutch tooth does clutch operation.

5. rickshaw as claimed in claim 3 laborsaving can trample crank device, which is characterized in that in first runner Wall is equipped with spaced multiple embedded blocks, which is equipped with multiple outer abaculus that clutch operation is done with the respectively embedded block.

6. rickshaw as claimed in claim 3 laborsaving can trample crank device, which is characterized in that the actuation path is a ring Shape concaveconvex structure, one first intermittent zones, a shrinking zone, one second intermittent zones and a stretching area including the arrangement of circumferentially formula.

7. rickshaw as claimed in claim 3 laborsaving can trample crank device, which is characterized in that first crank includes one Outer arm shell and an inner arm shell of corresponding outer arm shell engagement, the relative position inside the outer arm shell and the inner arm shell are equipped with one and hold Pearl slot, the transmission mechanism is is made of multiple balls, and respectively the ball is arranged along the appearance pearl slot.

8. rickshaw as claimed in claim 7 laborsaving can trample crank device, which is characterized in that first runner and this The periphery wall of two runners is all equipped with multiple semicircle spherical shapes for the pit of respectively ball accommodating and push.

9. rickshaw as claimed in claim 7 laborsaving can trample crank device, which is characterized in that the supporting member is arranged at this Inside the one end of inner arm shell far from second crank.

10. rickshaw as claimed in claim 3 laborsaving can trample crank device, which is characterized in that second crank and should Third crank is integrally formed, and is formed with an interval trough between second crank and the third crank.

11. rickshaw as claimed in claim 3 laborsaving can trample crank device, which is characterized in that the one of second crank End forms a ladder block, is equipped with a perforation in the ladder block, which forms a stepped groove, in the ladder Slot is connected with a pillar, which corresponds to stepped groove engagement, which wears the perforation and consolidate, and in second crank An interval trough is formed between the third crank.

12. rickshaw as described in claim 1 laborsaving can trample crank device, which is characterized in that first runner and should Second runner is all a spur gear, which is the belt with multiple double wedges.