CN102029905B - Clutch pedal assembly - Google Patents

Clutch pedal assembly Download PDF

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Publication number
CN102029905B
CN102029905B CN201010580561.5A CN201010580561A CN102029905B CN 102029905 B CN102029905 B CN 102029905B CN 201010580561 A CN201010580561 A CN 201010580561A CN 102029905 B CN102029905 B CN 102029905B
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pedal
spring guide
spring
clutch pedal
clutch
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CN201010580561.5A
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CN102029905A (en
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程然超
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Chery Automobile Co Ltd
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SAIC Chery Automobile Co Ltd
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  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The invention discloses a clutch pedal assembly which comprises a pedal bracket, a pedal arm and a booster spring mechanism, wherein the pedal arm is hinged on the pedal bracket through a rotating shaft of the pedal arm, and a pedal pad is arranged at the tail end of the pedal arm; the booster spring mechanism is divided into an upper booster spring mechanism and a lower booster spring mechanism; the upper booster spring mechanism is arranged at the upper side of the pedal bracket and comprises an upper spring guide rod articulated with the bottom end of the pedal bracket, an upper spring guide sleeve articulated with the top end of the pedal arm and an upper booster spring arranged between the upper spring guide rod and the upper spring guide sleeve; and the lower booster spring mechanism is arranged at the lower side of the pedal bracket and comprises a lower spring sleeve articulated with a connecting bracket of the upper spring guide sleeve, a lower spring guide rod articulated with the pedal arm and a lower booster spring arranged between the lower spring guide sleeve and the lower spring guide rod. The clutch pedal assembly of a double booster spring mechanism remarkably reduces the clutch pedal force on the premise of ensuring appropriate pedal stroke and appropriate maximum pedal return force, improves the operation comfortableness of a clutch pedal and meets the requirement of a large-torque engine manual-transmission car on a clutch manipulation system.

Description

A kind of clutch pedal assembly
Technical field
The present invention relates to a kind of clutch pedal mechanism, especially relate to a kind of clutch pedal assembly with dual power assistant spring mechanism.
Background technology
Along with the develop rapidly of engine technology (as supercharging technology, in-cylinder direct-jet technology), engine torque also progressively improves, and the thrust of power-transfer clutch will increase, and the clutch torque capacity of corresponding manual gear vehicle needs also progressively strengthens.Manual car adopts torquey engine, for ensureing clutch operation traveling comfort, pedal stroke can not long (proper between 120 ~ 150mm), do not reduce treadle effort by unconfined increasing clutch pedal lever ratio, now just needs to strengthen clutch pedal power-assisted value.
Current manual car clutch pedal was generally all with center-point spring device (cylinder spring or torsion spring), in whole pedal stroke process, spring is in compressive state, before crossing spring device center-point, drag effect (returning place force) is risen to pedal, after crossing center-point, power-assisted effect is played to pedal.Owing to being subject to the restriction that the maximum returning place force of clutch pedal and pedal latter end power-assisted value can not be excessive, maximum effective power-assisted can only accomplish about 20 ~ 30N, can only meet the manual car carrying little torque engines, is not suitable for the car carrying torquey engine.
The prior art be close most with the present invention has: China Patent No. CN200720033929.X patent and China Patent No. CN200820020278.5 patent, their main structures be all with the spring device (spring is cylinder spring or torsion spring) of center-point, by this technology, we can realize certain clutch pedal returning place force and power-assisted, improve clutch operation traveling comfort, but the maximum power-assisted limited (about 20 ~ 30N) that its shortcoming is spring device can be provided.For carrying the car of moment of torsion more than 250N.m driving engine, maximum clutch pedal power will more than 120N, and as adopted the clutch pedal of the band power assistant spring mechanism of above-mentioned routine, traveling comfort is not good, and car owner will be caused to complain.As adopted outside servomechanism (as air pump or Hydraulic Pump) to reduce clutch pedal power, on the one hand difficult arrangement (air pump is generally used for truck) on car, on the other hand exploitation and the coupling cycle long, with high costs.
Summary of the invention
The object of this invention is to provide a kind of clutch pedal assembly, solve the manual gear car carrying torquey engine and higher problem is required to the power-assisted value of clutch pedal.Under the prerequisite ensureing suitable pedal stroke and suitable maximum pedal return power, improve clutch pedal power-assisted value.
The technical solution adopted for the present invention to solve the technical problems is: a kind of clutch pedal assembly, comprise pedal support, pedal arm and power assistant spring mechanism, described pedal arm is hinged on pedal support by pedal arm S. A., and pedal arm end is provided with foot pedal pad.Described power assistant spring mechanism is divided into power assistant spring mechanism and lower power assistant spring mechanism; Described upper power assistant spring mechanism on the upside of pedal support, comprise the upper spring guide rod hinged with pedal support bottom, with the hinged upper spring guide pin bushing of pedal arm and the upper power assistant spring that is arranged between the two; Described lower power assistant spring mechanism on the downside of pedal support, comprise the lower spring guide pin bushing hinged with the lower spring guide pin bushing connection bracket on pedal support, with the hinged lower spring guide rod of pedal arm and the lower power assistant spring that is arranged between the two.
In the present invention, clutch pedal is when initial condition, and the angle of the S. A. mid point line of described upper spring guide rod axis and the supreme spring guide of pedal arm S. A. mid point is α; Described lower spring guide rod axis and pedal arm S. A. mid point are β to the angle of the S. A. mid point line of lower spring guide pin bushing; Described angle α and β is obtuse angle, and angle α is less than angle β.
Further, described pedal support is fixedly installed clutch pedal upper limit, described pedal support is fixedly installed clutch pedal lower limit, described clutch pedal steps on pedal stroke range set to clutch pedal lower limit at 120 ~ 150mm from clutch pedal upper limit.
Described upper power assistant spring and lower power assistant spring are Compress Spring, within the scope of whole pedal stroke, be all in compressive state.
Beneficial effect of the present invention: owing to have employed the clutch pedal of dual power assistant spring mechanism, the power-assisted superposition of two power assistant spring mechanisms, under the prerequisite ensureing suitable pedal stroke and suitable maximum pedal return power, maximum for clutch pedal power-assisted can be improved about 1 times, remarkable reduction clutch pedal power, improve clutch pedal operation comfort, meet torquey engine manual gear car to the demand of clutch maneuvering system.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the left view of clutch pedal assembly of the present invention.
Fig. 2 is the right elevation of clutch pedal assembly of the present invention.
Fig. 3 is the partial left side view of clutch pedal assembly of the present invention.
The power-assisted diagram of curves that Fig. 4 provides for power assistant spring mechanism of the present invention (wherein: Y-coordinate value is just, represents pedal return power; Y-coordinate is negative, mark pedal power-assisted; Abscissa is pedal stroke).
In figure: 1. pedal support, 2. pedal arm S. A., 3. pedal arm, 4. foot pedal pad, 5. upper spring guide rod, 6. upper spring guide pin bushing, 7. go up power assistant spring, 8. lower spring guide rod, 9. lower spring guide pin bushing, 10. descend power assistant spring, 11. clutch pedal upper limits, 12. clutch pedal lower limit, 13. lower spring guide pin bushing connection brackets, α. for clutch pedal is when initial condition, the angle of the S. A. mid point line of upper spring guide rod axis and the supreme spring guide of pedal arm S. A. mid point; β. for clutch pedal is when initial condition, lower spring guide rod axis and pedal arm S. A. mid point are to the angle of the S. A. mid point line of lower spring guide pin bushing.
Detailed description of the invention
Embodiment 1, structure is as Figure 1-3 known, and a kind of clutch pedal assembly of the present invention is the assembly of the clutch pedal mechanism being with dual power-assisted, comprises pedal support 1, by pedal arm S. A. 2 installs pedal arm 3 on pedal support 1, pedal arm 3 end is fixed with foot pedal pad 4.The power assistant spring mechanism arranged between pedal arm 3 and pedal support 1, it comprises power assistant spring mechanism and lower power assistant spring mechanism, wherein go up power assistant spring arrangement of mechanism above pedal arm S. A. 2, lower power assistant spring arrangement of mechanism is in the below of pedal arm S. A. 2.Described upper power assistant spring mechanism comprises the upper spring guide rod 5 be connected with pedal support 1, also comprises the upper spring guide pin bushing 6 be connected with pedal arm 3, installs power assistant spring 7 between upper spring guide rod 5 and upper spring guide pin bushing 6.Described lower power assistant spring mechanism comprises the lower spring guide pin bushing connection bracket 13 be welded on pedal support 1, the lower spring guide pin bushing 9 be connected with lower spring guide pin bushing connection bracket 13, also comprise the lower spring guide rod 8 be connected with pedal arm, lower power assistant spring 10 is installed between lower spring guide pin bushing 9 and lower spring guide rod 8.
Pedal support 1 is fixedly installed clutch pedal upper limit 11 and clutch pedal lower limit 12, initial and the final position of pedal arm 3 is determined by clutch pedal upper limit 11 and clutch pedal lower limit 12, push down on the pedal pad 4, pedal arm 3 will rotate around pedal arm S. A. 2, upper spring guide rod 5, upper spring guide pin bushing 6, lower spring guide rod 8 and lower spring guide pin bushing 9 is driven to rotate around respective S. A., upper power assistant spring 7 and lower power assistant spring 10 are all in compressive state within the scope of whole pedal stroke, and reduction length is also along with change.
Clutch pedal is when initial condition, and the angle of the rotation axis of described upper spring guide rod and the S. A. mid point line of the supreme spring guide of pedal arm S. A. mid point is α; The rotation axis of described lower spring guide rod and pedal arm S. A. mid point are to the angle β of the S. A. mid point line of lower spring guide pin bushing; Described angle α and β is obtuse angle, and angle α is less than angle β.
Further, described clutch pedal steps on pedal stroke range set to clutch pedal lower limit at 120 ~ 150mm from clutch pedal upper limit, and pedal stroke is set as 140mm in the present embodiment.
Upper spring power assistant spring mechanism mainly provides enough returning place forces and certain power-assisted.When pedal arm 3 is in initial position, the S. A. mid point of upper spring guide pin bushing is positioned at the S. A. mid point of upper spring guide rod and the left side of pedal arm S. A. mid point line, the elastic force of upper power assistant spring acts on clutch pedal on top, makes clutch pedal have the trend of left-hand revolution namely to play returning place force effect to clutch pedal.Step on clutch pedal, when the S. A. mid point of upper spring guide pin bushing, the S. A. mid point of upper spring guide rod and pedal arm S. A. mid point three S. A. mid points are at same straight line, to clutch pedal namely without returning place force also non helping hand effect.In this stage, returning place force effect plays to clutch pedal in upper spring mechanism.Continue to step on clutch pedal, the S. A. mid point of upper spring guide pin bushing is positioned at the S. A. mid point of upper spring guide rod and the right side of pedal arm S. A. mid point line, the elastic force now going up power assistant spring acts on clutch pedal on top, makes clutch pedal have the trend of clickwise namely to play power-assisted effect to clutch pedal.Upper spring power assistant spring mechanism is within the scope of whole clutch pedal clearance, pedal arm 3 is when upper limit, the maximum returning place force that upper spring power assistant spring mechanism provides is about 18N, when clutch pedal clearance is about 85mm, clutch pedal power is maximum, and the maximum power-assisted that now upper spring power assistant spring mechanism provides is about 20N.
Lower spring power assistant spring mechanism mainly provides enough power-assisteds and very little returning place force.The same with upper spring power assistant spring mechanism principle, in like manner at clutch pedal clearance leading portion and back segment, returning place force and power-assisted effect play respectively to clutch pedal in lower spring mechanism.Lower spring power assistant spring mechanism is within the scope of whole clutch pedal clearance, pedal arm 3 is when upper limit, the maximum returning place force that lower spring mechanism provides is about 5N, when clutch pedal clearance is about 85mm, clutch pedal power is maximum, and the maximum power-assisted that now lower spring power assistant spring mechanism provides is about 32N.
The power-assisted that upper spring power assistant spring mechanism and lower spring power assistant spring mechanism provide and returning place force stack up, and when significantly not increasing returning place force, clutch pedal power-assisted can be increased to about 50N.This clutch pedal assembly i.e., under the prerequisite ensureing suitable pedal stroke and suitable maximum pedal return power, significantly reduces clutch pedal power, improves clutch pedal operation comfort, meet the demand of torquey engine to clutch maneuvering system.

Claims (3)

1. a clutch pedal assembly, comprise pedal support (1), pedal arm (3) and power assistant spring mechanism, described pedal arm is hinged on pedal support by pedal arm S. A. (2), and pedal arm end is provided with foot pedal pad (4); It is characterized in that: described power assistant spring mechanism is divided into power assistant spring mechanism and lower power assistant spring mechanism; Described upper power assistant spring mechanism in pedal support (1) upside, comprise and upper spring guide rod (5) that pedal support bottom is hinged, and the hinged upper spring guide pin bushing (6) in pedal arm top and the upper power assistant spring (7) that is arranged between upper spring guide rod (5) and upper spring guide pin bushing (6); Described lower power assistant spring mechanism in pedal support (1) downside, comprise and lower spring guide pin bushing (9) that lower spring guide pin bushing connection bracket (13) on pedal support is hinged, and the hinged lower spring guide rod (8) of pedal arm and the lower power assistant spring (10) that is arranged between lower spring guide pin bushing (9) and lower spring guide rod (8);
Clutch pedal is when initial condition, and the S. A. mid point of described upper spring guide rod (5), pedal arm S. A. (2) mid point are α with the angle of the S. A. mid point line of upper spring guide pin bushing (6) respectively; The S. A. mid point of described lower spring guide rod (8), pedal arm S. A. (2) mid point respectively with the angle β of the S. A. mid point line of lower spring guide pin bushing (9); Described angle α and β is obtuse angle; Described angle α is less than angle β;
Described pedal support is fixedly installed clutch pedal upper limit (11); Described pedal support is fixedly installed clutch pedal lower limit (12).
2. clutch pedal assembly as claimed in claim 1, is characterized in that: described clutch pedal steps on pedal stroke range set to clutch pedal lower limit at 120 ~ 150mm from clutch pedal upper limit.
3. clutch pedal assembly as claimed in claim 1 or 2, is characterized in that: described upper power assistant spring (7) and lower power assistant spring (10) are Compress Springs.
CN201010580561.5A 2010-12-09 2010-12-09 Clutch pedal assembly Active CN102029905B (en)

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CN201010580561.5A CN102029905B (en) 2010-12-09 2010-12-09 Clutch pedal assembly

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Application Number Priority Date Filing Date Title
CN201010580561.5A CN102029905B (en) 2010-12-09 2010-12-09 Clutch pedal assembly

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CN102029905B true CN102029905B (en) 2015-01-07

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103640475B (en) * 2013-12-18 2016-01-13 黄海龙 A kind of pedal of clutch restoring force control apparatus
DE102015214634B4 (en) * 2015-07-31 2018-11-22 Robert Bosch Gmbh Clutch pedal unit with progressive force feedback
CN106553542A (en) * 2015-09-24 2017-04-05 上海汽车集团股份有限公司 Automobile and its clutch, clutch operating device, clutch pedal assembly
CN107132873A (en) * 2017-06-09 2017-09-05 浙江泰鸿机电有限公司 Pedal assembly with spring anti-dropping and the anti-fail safe of switch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846012A (en) * 1986-10-29 1989-07-11 Daimler-Benz Aktiengesellschaft Actuating linkage for a clutch
CN101007507A (en) * 2006-01-27 2007-08-01 通用汽车环球科技运作公司 Clutch pedal mechanism with variable resistive force
CN200995623Y (en) * 2007-01-29 2007-12-26 奇瑞汽车有限公司 Clutch-pedal mechanism
CN201186613Y (en) * 2008-04-10 2009-01-28 于炳光 Clutch pedal mechanism
CN201573543U (en) * 2009-11-26 2010-09-08 奇瑞汽车股份有限公司 Clutch pedal mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919339B4 (en) * 1998-05-05 2019-09-05 Schaeffler Technologies AG & Co. KG Device for actuating a clutch
KR100820241B1 (en) * 2007-06-26 2008-04-08 주식회사 동희산업 Clutch pedal apparatus for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846012A (en) * 1986-10-29 1989-07-11 Daimler-Benz Aktiengesellschaft Actuating linkage for a clutch
CN101007507A (en) * 2006-01-27 2007-08-01 通用汽车环球科技运作公司 Clutch pedal mechanism with variable resistive force
CN200995623Y (en) * 2007-01-29 2007-12-26 奇瑞汽车有限公司 Clutch-pedal mechanism
CN201186613Y (en) * 2008-04-10 2009-01-28 于炳光 Clutch pedal mechanism
CN201573543U (en) * 2009-11-26 2010-09-08 奇瑞汽车股份有限公司 Clutch pedal mechanism

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