CN100503293C - Operating lever system - Google Patents
Operating lever system Download PDFInfo
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- CN100503293C CN100503293C CNB2006101686324A CN200610168632A CN100503293C CN 100503293 C CN100503293 C CN 100503293C CN B2006101686324 A CNB2006101686324 A CN B2006101686324A CN 200610168632 A CN200610168632 A CN 200610168632A CN 100503293 C CN100503293 C CN 100503293C
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- Prior art keywords
- pin
- cam path
- slit
- operating lever
- lever system
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- Sewing Machines And Sewing (AREA)
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Abstract
An operating lever system not requiring packing for preventing noise and any special function portion which reduces the number of parts and number of assembly steps and reduces the costs, that is, an operating lever system wherein the cam groove is formed in it middle portion with sharp bends where the curvature sharply changes, a front end of a pin is provided with a slit extending substantially in parallel to the two side walls of the cam groove and having a predetermined depth from the front end of the pin, at least part of the portion of the pin circumference substantially corresponding to a predetermined depth of the slit contacts the side walls without clearance, and the other portion of the pin circumference has a clearance from the side walls.
Description
Technical field
The present invention relates to operating lever system, wherein, pin slides in cam path, and two bars are driven with the preposition relation, more particularly, the present invention relates to for example operating lever system of vehicle air conditioner door (mode switch door etc.).
Background technology
Insert the pin that is arranged on the drive spindle in the cam path of operating lever system in being formed on follower lever, and by rotating follower lever along with drive spindle rotates the pin that slides along the cam path slidingsurface.And the shape of cam path is set so that the pivot angle formation predetermined relationship of the pivot angle of follower lever with respect to drive spindle.In order to obtain above-mentioned predetermined relationship, the part in the middle of the cam path often is formed with the sharp turn that curvature sharply changes.
And, when drive spindle rotates and sells the sharp turn that arrives cam path, there is such problem, promptly sell in cam path the slidingsurface that fluffs, clashes into cam path and produce noise.Therefore, in the past, attempt using the tubular wrapper of making by elastic body to cover the periphery of pin, thereby prevent that noise from producing.And, as shown in open (A) No.2000-322141 of Japanese Patent, also have a kind of drive spindle that is provided with special function portion.
Yet, in legacy system, owing to packing material is set or special function portion is dealt with noise, so caused the increase of number of parts and number of assembling steps quantity or the increase of cost.
Summary of the invention
The objective of the invention is to eliminate for being used to prevent the packing material of noise or the needs of any special function portion, reduce number of parts and number of assembling steps quantity, and cost-cutting.
According to a first aspect of the invention, a kind of operating lever system is provided, it comprises first bar, on described first bar, be formed with pin, described pin inserts in the cam path that is formed in second bar so that connect described second bar, described two bars have connecting bridge, the structure of described connecting bridge makes two sidewalls of facing of the described cam path of the outer periderm of described pin guide and slides in described cam path, wherein, described cam path is formed with the sharp turn that curvature sharply changes in the pars intermedia office, described pin is provided with slit at its front end place, described slit has desired depth apart from the front end of described pin, have a part described sidewall of contact under situation very close to each other in roughly the part of described pin periphery at least, and other parts of described pin periphery are gapped apart from described sidewall corresponding to the desired depth of described slit.
In view of the above, because local at least place is gapped in the contact between described pin and the described cam path, so in the time of described pin arrival sharp turn, can prevent the noise that the loosening contact because of pin causes.And, because of lacking the method for the friction drag that the gap causes, make very close to each other between described pin and the described cam path contact the minimum that degree of depth M is necessity as reply.And the front end place that slit is set at described pin is up at least corresponding to the degree of depth of the contact degree of depth.This slit gives flexibility (flexibility) for the slipper of described pin front end, and therefore, when described pin slided in described cam path, the friction drag between described pin and the described cam path can access and reduce.And, be used to as in legacy system prevent that the unitary part (packing material) and the special function portion of noise from becoming unnecessary.Therefore, can reduce number of parts and number of assembling steps quantity and cost-cutting.
According to a second aspect of the invention, provide a kind of operating lever system, wherein, described slit extends with respect to described two sidewall almost parallel ground.Therefore, a kind of operating lever system of easy manufacturing is provided.
According to a third aspect of the invention we, a kind of operating lever system is provided, wherein, the general radial direction setting to the small part slit along described pin, and described slit is formed on about asymmetric position, bearing pin center at an end and an other end of described pin outer circumferential side.Therefore, when described pin moves, even if a slit ends is faced a side of described cam path width, but there is not slit ends in the pin periphery in a side relative with this slit ends, but there be the real surperficial of bearing pin, therefore, compare, become corresponding to the circumferential diameter of the bearing pin of cam path width and more approach normal pin diameter with the situation of straight slit.And, compare with the situation of straight slit, because of the loosening possibility that noise takes place of pin diminishes.
According to a forth aspect of the invention, provide a kind of operating lever system, wherein, two sidewalls of facing of described cam path are provided with step difference in the centre of bearing pin direction.By providing step difference in side-walls, then no longer need provide step difference at the bearing pin place, can guarantee bearing pin intensity.
According to a fifth aspect of the invention, provide a kind of operating lever system, it is characterized in that, between another part of the local at least and described pin periphery of the part of described pin periphery, be provided with step difference.By providing step difference, then no longer need provide step difference in side-walls at the bearing pin place.The interior shape of described cam path obtains simplifying, and therefore can reduce the cost of mould for plastics.
According to a sixth aspect of the invention, a kind of operating lever system is provided, it comprises first bar, on described first bar, be formed with pin, described pin inserts in the cam path that is formed in second bar so that connect described second bar, described two bars have connecting bridge, the structure of described connecting bridge makes two sidewalls of facing of the described cam path of outer periderm of described pin guide and slides in described cam path, wherein, described cam path is formed with the sharp turn that curvature sharply changes in the pars intermedia office, under situation very close to each other, contact described sidewall to small part pin periphery, and, described second bar has the elastic deformation groove, near described elastic deformation groove is arranged on described cam path along described cam path.Therefore, can reduce the friction drag between the described pin and described cam path when described pin slides in described cam path.
Therefore, because contacting to small part between described pin and the described cam path is very close to each other, therefore, when described pin arrives described sharp turn, can prevent to produce noise because of becoming flexible of pin.And, because of lacking the measure of the friction drag that the gap causes, be provided with the elastic deformation groove as reply.Because these elastic deformation grooves, cam path has possessed flexibility, therefore can reduce the friction drag between the described pin and described cam path when described pin slides in described cam path.And, be used to as in legacy system prevent that the unitary part (packing material) and the special function portion of noise from becoming unnecessary.Therefore, can reduce number of parts and number of assembling steps quantity and cost-cutting.
Description of drawings
These and other purposes of the present invention and feature will be clearer from the following description of preferred embodiments that provides with reference to accompanying drawing, wherein:
Fig. 1 is the planar view that first embodiment of the invention is shown;
Fig. 2 is the cutaway view along the line AA of Fig. 1;
Fig. 3 is according to second embodiment of the invention, corresponding to the view of Fig. 2;
Fig. 4 is the planar view that third embodiment of the invention is shown;
Fig. 5 is the cutaway view along the line BB of Fig. 4;
Fig. 6 is the view that direction C saw from Fig. 2;
Fig. 7 is according to fourth embodiment of the invention, corresponding to the view of Fig. 6;
Fig. 8 be according to the modification of fourth embodiment of the invention, corresponding to the view of Fig. 7.
The specific embodiment
Below embodiments of the invention will be described.
First embodiment
At first the first embodiment of the present invention will be described.Fig. 1 is the planar view of first embodiment of system of the present invention, and Fig. 2 is the cutaway view along the line AA of Fig. 1.The first embodiment of the present invention comprises drive spindle 1 and follower lever 2, and they are made by mechanical strength and the superior plastics (as polyacetal or polypropylene) of abrasion resistance.
The operation of first embodiment then will be described.In Fig. 1, if drive spindle 1 in the counterclockwise direction
eGo up and rotated, then sell 11 edges by servomotor
dDirection is moved in cam path 21, and follower lever 2 in the clockwise direction
cOn be rotated, simultaneously, when drive spindle 1 was rotated in the clockwise direction, follower lever 2 was driven in the counterclockwise direction.The door of a/c system is driven along with the rotation of this follower lever 2.
And, in Fig. 2, when drive spindle 1 is rotated in the counterclockwise direction, the pin 11 from initial point position by the centre portion of sharp turn 30a, 31a and the position of reaching home.Thitherto, the pin 11 be maintained at the zero-lash state of slidingsurface 30x, 31x under.Therefore, near sharp turn 30a, 31a, pin 11 is by being born against on slidingsurface 30x, 31x, and zero-lash slide in state moving, so prevented to sell the generation of 11 loosening and noise.
On the other hand, as shown in Figure 2, the front end of pin 11 is provided with slit 11b, and slit 11b is roughly parallel to two sidewalls 30,31 that are formed on cam path 21 places and extends, and apart from the front end of pin 11 desired depth is arranged.In roughly the part of pin periphery 11a, seamlessly contact with sidewall 30,31 to small part M, and other parts of pin periphery 11a are apart from sidewall 30,31 gapped j corresponding to slit 11b desired depth L.
As reply when pin 11 slides because of and cam path 21 between lack the measure of the friction drag that the gap causes, at first, make no gap contact the minimum degree that degree of depth M is necessity.Secondly, the front end of pin is provided with slit, and the degree of depth of slit (L) is greater than the degree of depth corresponding to this contact degree of depth M.Because this slit, the slipper of pin front end has possessed sufficient flexibility.And, form the sidewall 30,31 of cam path and sell 11 and make, so can suitably be out of shape with external force by possessing elastomeric plastics.Therefore, when pin 11 slided in cam path 21, when pin 11 is subjected to from the pushing force of cam path 21 and during along with cam path 21 distortion at curvature sharp turn 30a, 31a place, thereby the front end of pin 11 can be out of shape with cam path 21 and reduces friction drag.These two structures make and hinder the friction drag of sliding capability to be reduced.
In the present embodiment, because the friction resistance of the pin 11 that lacks the gap between pin 11 and slidingsurface 30x, the 31x and cause because of the flexibility of slit, so can prevent noise, therefore need unitary part (packing material) or special function portion to prevent noise in legacy system, therefore, can reduce the quantity of part and the quantity of number of assembling steps also can reduce production costs.
Second embodiment
Then will the second embodiment of the present invention be described based on Fig. 3.Fig. 3 is the view corresponding to Fig. 2 of second embodiment of the invention.The Reference numeral the same with first embodiment represent with first embodiment in have the same function element, and omit to explain.In first embodiment, the diameter of axle of pin 11 is the same, and the sidewall of cam path is two rank shapes, wherein single order still, also can be eliminated the step difference of cam path sidewall as slidingsurface, and the axle external diameter of order pin is two rank shapes, and with single order as slidingsurface with the cam path sidewall.
Just, as shown in Figure 3, make the two rank shapes of periphery (axle periphery) for being made of periphery 11c and periphery 11d of bearing pin 11A, wherein, periphery 11c has big shaft diameter, and periphery 11d has little shaft diameter.Therefore, the periphery of bearing pin 11A is formed with step difference n.And the sidewall 30 of cam path is formed with slidingsurface 30x continuously and does not have step difference apart from the gapped sidewall 30y of pin.Another sidewall 31 of cam path is formed with slidingsurface 31x and sidewall 31y similarly continuously and does not have step difference.And, the same with first embodiment, make " no gap contact degree of depth M " to be necessary minimum degree.Therefore, hinder the friction drag of pin 11A sliding capability to be reduced.And, by step difference being set, then no longer need step difference be set in side wall side in the bearing pin side, the interior shape of cam path is simplified, and the cost of the mould of the plastics that therefore are used to be shaped is minimized.
The 3rd embodiment
Then, with reference to Fig. 4 and Fig. 5 the third embodiment of the present invention is described.Fig. 4 is the planar view that third embodiment of the invention is shown.Fig. 5 is the cutaway view along the line B-B of Fig. 4.With Reference numeral the same among first embodiment represent with first embodiment in have the element of said function, and omitted explanation.
In above-mentioned first embodiment, pin 11 is provided with slit 11b.This slit 11b has flexibility in the sliding part office of pin front end, so when pin slided, the friction drag between pin and the cam path was reduced.On the other hand, in the 3rd embodiment, pin is not provided with any slit.The elastic deformation groove is set near the cam path of second bar, thus, has been endowed flexibility at the sidewall 30,31 of the cam path of opposite side.
As shown in Figure 4, the second bar 2B has a plurality of elastic deformation grooves 40, near described a plurality of elastic deformation grooves 40 are arranged on cam path along cam path 21.Because the existence of elastic deformation groove 40, so the flexibility of cam path sidewall 30,31 increases.Therefore, when pin 11B slided in cam path 21, the friction drag between pin 11B and the cam path 21 was reduced.In Fig. 5, elastic deformation groove 40 has trench bottom 2a, and still, in order further to improve the flexibility of cam path sidewall 30,31, elastic deformation groove 40 can not have trench bottom 2a yet but is open design.
Although can explain after a while, when pin is provided with slit, at pin during at the cam path internal motion because the shape of product error or cam path etc., in the end of the slit of pin outer circumferential side sometimes in the face of the sidewall of cam path.By slit not being set, can eliminate the problem that causes because of the slit existence to pin.Certainly, also there is the selection that slit is set to pin in the viewpoint from about the stress of flexibility in the 3rd embodiment.
The 4th embodiment
Then to Fig. 8 the fourth embodiment of the present invention is described with reference to Fig. 6.Fig. 6 is the view of seeing from the C direction of Fig. 2.Fig. 7 is the view corresponding to Fig. 6 according to fourth embodiment of the invention.Fig. 8 is the view corresponding to Fig. 7 according to fourth embodiment of the invention.With Reference numeral the same among first embodiment represent with first embodiment in have the element of said function, and omit explanation to it.
As shown in Figure 7, in the 4th embodiment, in slit 11e, 11f, a slit 11e is arranged on the general radial direction of pin 11C.Forming at an end 11x of pin periphery 11a side and other end 11z of slit is positioned at about the asymmetric position of 11p, bearing pin center.
Therefore, when pin 11C moves, even if slit ends 11x does not have slit ends in the face of the side of cam path width W at a side 11y place relative with slit ends 11x of pin periphery.Compare with the situation of straight slit (D1), have the real surface of bearing pin, approach normal pin diameter D0 so become corresponding to the bearing pin outer circumference diameter D2 of cam path width W.And, compare with the situation of straight slit, because of the loosening possibility that noise takes place of pin becomes less.
The 4th modification of the present invention is shown in Figure 8.It comprises that the 4th embodiment shown in Fig. 7 adds slit 11g.Its effect and effect roughly with the 4th embodiment in identical, still have following advantage, promptly increase slit and improved flexibility.
Other embodiment
And pin can be formed by metal, and this pin force fit or embedding are molded in the plastics drive spindle 1.In addition, the present invention also can be applicable to the application scenario except that vehicle air conditioner.
Although with reference to for explanation selected specific embodiment the present invention has been described, apparent, those skilled in the art can make many modifications to it under the situation that does not break away from basic conception of the present invention and scope.
Claims (5)
1. operating lever system, comprise first bar, on described first bar, be formed with pin, described pin inserts in the cam path that is formed in second bar so that connect described second bar, described two bars have connecting bridge, the structure of described connecting bridge makes two sidewalls of facing of the described cam path of outer periderm of described pin guide and slides in described cam path, wherein
Described cam path is formed with the sharp turn that curvature sharply changes in the pars intermedia office,
Described pin is provided with slit at its front end place, and described slit has desired depth apart from the front end of described pin,
In roughly the part of described pin periphery corresponding to the desired depth of described slit, have a part described sidewall of contact under situation very close to each other at least, and
Other parts of described pin periphery are gapped apart from described sidewall.
2. operating lever system as claimed in claim 1 is characterized in that, described slit extends with respect to described two sidewall almost parallel ground.
3. operating lever system as claimed in claim 1 is characterized in that
General radial direction setting to the described slit of small part along described pin, and
Described slit is formed on about asymmetric position, bearing pin center at an end and the other end of described pin outer circumferential side.
4. operating lever system as claimed in claim 1 is characterized in that, two sidewalls of facing of described cam path are provided with step difference in the centre of described bearing pin direction.
5. operating lever system as claimed in claim 1 is characterized in that, is provided with step difference between another part of the local at least and described pin periphery of the part of described pin periphery.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005370190 | 2005-12-22 | ||
| JP2005370190 | 2005-12-22 | ||
| JP2006248266 | 2006-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1986264A CN1986264A (en) | 2007-06-27 |
| CN100503293C true CN100503293C (en) | 2009-06-24 |
Family
ID=38183248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101686324A Expired - Fee Related CN100503293C (en) | 2005-12-22 | 2006-12-19 | Operating lever system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100503293C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165449B (en) * | 2014-08-27 | 2017-05-24 | 珠海格力电器股份有限公司 | Connection rod device and air conditioner |
| FR3032020B1 (en) * | 2015-01-27 | 2017-02-17 | Valeo Systemes Thermiques | CAM DEVICE FOR CONTROLLING AT LEAST ONE ORGAN |
| JP6486748B2 (en) * | 2015-03-30 | 2019-03-20 | 三菱重工サーマルシステムズ株式会社 | Damper opening / closing mechanism for vehicle air conditioner |
| WO2018106042A1 (en) * | 2016-12-07 | 2018-06-14 | 한온시스템 주식회사 | Air conditioning device for vehicles |
| CN106871549B (en) * | 2017-04-11 | 2022-08-12 | 江苏雷利电机股份有限公司 | Air supply device for air-cooled refrigerator and air supply method using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353660A (en) * | 1992-03-03 | 1994-10-11 | General Motors Corporation | Locking mechanism |
| US6131336A (en) * | 1997-07-03 | 2000-10-17 | Fickenscher & Co. Gmbh | Ventilator device having a control which operates a lamella unit and an air damper simultaneously |
| JP2000322141A (en) * | 1999-05-10 | 2000-11-24 | Denso Corp | Operation lever device |
-
2006
- 2006-12-19 CN CNB2006101686324A patent/CN100503293C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353660A (en) * | 1992-03-03 | 1994-10-11 | General Motors Corporation | Locking mechanism |
| US6131336A (en) * | 1997-07-03 | 2000-10-17 | Fickenscher & Co. Gmbh | Ventilator device having a control which operates a lamella unit and an air damper simultaneously |
| JP2000322141A (en) * | 1999-05-10 | 2000-11-24 | Denso Corp | Operation lever device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1986264A (en) | 2007-06-27 |
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Granted publication date: 20090624 Termination date: 20141219 |
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| EXPY | Termination of patent right or utility model |