CN102654195B - Shift drum stop plate - Google Patents
Shift drum stop plate Download PDFInfo
- Publication number
- CN102654195B CN102654195B CN201210026209.6A CN201210026209A CN102654195B CN 102654195 B CN102654195 B CN 102654195B CN 201210026209 A CN201210026209 A CN 201210026209A CN 102654195 B CN102654195 B CN 102654195B
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- China
- Prior art keywords
- speed transmission
- transmission drum
- check plate
- plate
- pin stop
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Abstract
The invention provides a shift drum stop plate realizing cost reduction and simultaneously ensuring sufficient strength. The shift drum stop plate (60) is provided with a plate portion (61) and a plurality of stop pin portions (62) protruding from one side surface of the plate portion (61) and clamping with claws (55c, 55d) of a shift arm (55), the stop pin portions (62) are respectively in the shape of a column, and provided with a cylindrical portion and an extension reinforcing portion (62b) formed in one integration, the cross section shape of a stop pin portion (62) is a horseshoe formed by a circular arc portion (62c), extending line portions (62f, 62g), and an inner contour portion (62h), the plate portion (61) and the plurality of stop pin portions (62) are manufactured by sintering of compression powder after integral pre-forming.
Description
Technical field
The present invention relates to a kind of speed transmission drum check plate (shift drum stop plate) of gear of two-wheeled grade.
Background technique
The gear of two-wheeled grade, by speed transmission drum is intermittently rotated, moves the reverse shift fork engaging with speed transmission drum, thereby changes the engagement of the gear train that possesses of gear and carry out speed change.
In speed changer, possesses the intermittent feeding mechanism that speed transmission drum is intermittently rotated, and be provided with the speed transmission drum check plate of following the rotation of speed change axle (shift spindle) and intermittently rotate with predetermined angular, this speed transmission drum check plate is fixed on speed transmission drum, follow the rotation of speed transmission drum check plate, speed transmission drum is rotated.
This speed transmission drum check plate is that wherein, the surrounding of this plate-like portion is formed as camming surface at the outstanding member that is provided with multiple pin stop portion in a side of plate-like portion, and speed transmission drum check plate is accepted rotating force in pin stop portion from intermittent feeding mechanism.Therefore, pin stop portion requires stronger intensity owing to being subject to large load.
Therefore, speed transmission drum check plate, by by plate-like portion and pin stop portion split formation respectively, is pressed into plate-like portion by stop pin and integrally manufacture afterwards.But, the parts number of packages of such speed transmission drum check plate increases, and, for stop pin is pressed into plate-like portion, and complex-shaped and require dimensional accuracy, and in order to ensure the intensity of pin stop portion that is subject to load, plate-like portion and these both sides of stop pin are required to high-precision processing, and stop pin need to be pressed into the operation of plate-like portion, thereby cause the increase of manufacture cost.
In order to eliminate such unfavorable condition, be known to by punch process or sinter forging method, by plate-like portion and the integrally formed and speed transmission drum check plate (for example,, with reference to patent documentation 1, patent documentation 2) that produces of pin stop portion.
Formerly technical paper
Patent documentation
[patent documentation 1] Japanese kokai publication hei 9-210201 communique
[patent documentation 2] Japanese kokai publication hei 9-19738 communique
The speed transmission drum check plate of recording in above-mentioned patent documentation 1 is the member by plate-like portion and pin stop portion impact briquetting are integratedly molded, and realizes the reduction of manufacture cost by cutting down the operation that pin stop portion is pressed into plate-like portion.But, stamping forming manufacturing process based on such is due to outstanding the setting after pin stop portion that be shaped by stamping die, also form camming surface and circular hole by stamping die, therefore process number is many, and because check plate requires high Product Precision, the manufacture cost that therefore less can reduce drawing, further requires cost cutting.
In addition, the speed transmission drum check plate of recording in above-mentioned patent documentation 2 is the object that is reduced to that realizes cost, and will be formed with the plate-like portion of camming surface and the member that columned pin stop portion is integrally formed by sinter forging.That is, the metal powder of agglomerated material be filled in the mould of powders compression device and compress, forming the preform before the sintering of speed transmission drum check plate, and this preform is moved into sintering furnace and carry out sintering and obtain sintering body.By mould, sintering body is forged and manufactured afterwards.
But, because such pin stop portion is formed as from outstanding cylindric of plate-like portion, therefore in the time of preforming metal powder being compressed by powders compression device, the section area of the cross section with respect to compression direction of pin portion reduces sharp compared with the section area of plate-like portion, therefore in the time of impact briquetting, pulverous agglomerated material can not be filled into the tiny part of the mould that forms pin portion fully, the density of agglomerated material easily reduces, and be difficult to guarantee the sufficient intensity of pin portion, thereby in order to manage the density of agglomerated material, guarantee the intensity of the member after sintering, and produce the special management man-hours such as mold management when impact briquetting, and, in order to meet density or the intensity of speed transmission drum check plate, and need to after sintering generates, append forging process, thereby manufacture cost increases.
Summary of the invention
The present invention proposes in view of such situation, and its object is to provide a kind of speed transmission drum check plate of realizing cost cutting and having guaranteed sufficient intensity simultaneously.
The present invention is used for solving above-mentioned problem, a first aspect of the present invention is speed transmission drum check plate, it forms gear, it is characterized in that, there is plate-like portion and multiple pin stop portion, plate-like portion has the camming surface joining with speed transmission drum retainer around, multiple pin stop portion are upwards outstanding setting the in a side from this plate-like portion every predetermined distance of the whole week of this plate-like portion, and engage with the pawl of the shifting arm of the principal arm of fixing speed change axle, this pin stop portion is column, and the prolongation reinforcing part that is formed with cylindrical portion and extends towards the rotating center side of this speed transmission drum check plate from this cylindrical portion, the shape of cross section of this pin stop portion is by circular arc part, elongation line portion, the horse shoe shaped that interior contour portion forms, the wherein pawl butt of circular arc part and this shifting arm, elongation line portion extends in the mode of inner side of scope of track of this pawl motion of not entering described shifting arm from each end of this circular arc part towards the rotating center side of speed transmission drum check plate, interior contour portion links up the end of this elongation line portion, described plate-like portion and described pin stop portion are by compressing powder and after one preforming, carry out sintering and manufacture.
A second aspect of the present invention is characterised in that to possess the link annulus that the prolongation reinforcing part of pin stop portion is linked up.
A third aspect of the present invention, on the basis of the speed transmission drum check plate described in first aspect, is characterized in that, the described elongation line portion in the sectional shape of described pin stop portion tangentially extends smoothly from described circular arc part.
A fourth aspect of the present invention, on the basis of the speed transmission drum check plate described in second aspect, is characterized in that, the elongation line portion in the sectional shape of described pin stop portion tangentially extends smoothly from circular arc part.
A fifth aspect of the present invention is on the basis of the speed transmission drum check plate described in second aspect or fourth aspect, it is characterized in that, be provided with in the inner side of the inner peripheral surface of described link annulus the bolt hole that confession connects for the bolt of described speed transmission drum check plate is installed, described link annulus doubles as the guide of bolt.
On the basis of the speed transmission drum check plate of a sixth aspect of the present invention described in aspect the 5th, it is characterized in that, the height of the height of described link annulus and the head of described bolt is roughly equal.
On the basis of the speed transmission drum check plate of a seventh aspect of the present invention described in aspect the 5th, it is characterized in that, described speed transmission drum check plate is for to arrange the gear of shifting arm inwardly with the overlapping mode of principal arm, and the height of the head of bolt is high described in the aspect ratio of described link annulus.
A eighth aspect of the present invention, on the basis of the speed transmission drum check plate aspect the 6th or described in the 7th aspect, is characterized in that, described bolt is made up of the concave head bolt that is provided with well at bolt head.
Invention effect
Described speed transmission drum check plate according to a first aspect of the invention, the prolongation reinforcing part that pin stop portion extends by cylindrical portion and the rotating center direction from cylindrical portion to speed transmission drum check plate forms, therefore compared with pin stop portion in the past, cross sectional area expands, and can realize the raising of intensity.
And, the shape of cross section of pin stop portion is horse shoe shaped, it is by with the circular arc part of the pawl butt of shifting arm, form with the elongation line portion that do not enter the mode of inner side of scope of track of pawl motion of described shifting arm and extend, interior contour portion that elongation line portion is linked from each end of this circular arc part towards the rotating center side of speed transmission drum check plate, therefore can not hinder the motion of the pawl of shifting arm, and can realize the raising of intensity.
In addition, because pin stop portion is integrally formed by cylindrical portion and prolongation reinforcing part, therefore compared with the pin stop portion only being formed by cylindrical portion, section area expands, while carrying out preforming at compressing powder, pulverous agglomerated material can be filled in the mould of pin stop portion fully, and, can reduce the variation of the section area of plate-like portion and pin stop portion, consequently, in the time of compressing powder, can suppress the generation of the reduction of the density of the powder in pin stop portion, therefore can improve the intensity of pin stop portion, and due to the density of management powder, guarantee the intensity of the member after sintering, the special management operations such as the mold management therefore can cut down impact briquetting time, and, owing to meeting the density of speed transmission drum check plate, intensity, therefore sintering does not need to append forging process after generating, can realize the reduction of cost.
In addition, due to plate-like portion and pin stop portion are manufactured by one sintering, therefore can cut down parts number of packages, realize the reduction of processing number of packages, and save the flow chart that pin stop portion is pressed into plate-like portion etc., thus can cutting down cost.
According to the speed transmission drum check plate described in second aspect, on the basis of the effect of a first aspect of the present invention, can also strengthen plate-like portion by linking annulus, and further strengthen the prolongation reinforcing part of pin stop portion, the intensity of pin stop portion is further improved.
And, by linking annulus, the section area of pin stop portion is further expanded, while carrying out preforming at compressing powder, pulverous agglomerated material can be filled into more fully to pin stop portion and link in the mould of annulus, and can reduce the variation of the section area of plate-like portion and pin stop portion and link annulus, thereby can further improve the intensity of pin stop portion, and can cut down the special management operation of the intensity for guaranteeing the member after sintering, can realize cost cutting.
According to a third aspect of the invention we, on the basis of the effect of a first aspect of the present invention, due to elongation line, portion extends smoothly from circular-arc part, therefore near the formation of joining with pawl shifting arm from cylindrical portion extends reinforcing part, thereby can obtain possessing the pin stop portion of higher intensity.
According to a forth aspect of the invention, on the basis of the effect of a second aspect of the present invention, due to elongation line, portion extends smoothly from circular-arc part, therefore near the formation of joining with pawl shifting arm from cylindrical portion extends reinforcing part, thereby can obtain possessing the pin stop portion of higher intensity.
According to a fifth aspect of the invention, on the basis of the effect of a fourth aspect of the present invention, bolt being inserted to the hole of speed transmission drum check plate and when fastening, the inner peripheral surface of the link annulus of speed transmission drum check plate becomes the guide of bolt, thereby assembling operation is improved.
According to a sixth aspect of the invention, on the basis of the effect of a fifth aspect of the present invention, can prevent that the head of bolt from exposing from speed transmission drum check plate, in the time of other parts of assembling, can prevent from interfering because of bolt head the variation of the fastening force causing.
According to a seventh aspect of the invention, on the basis of the effect of a fifth aspect of the present invention, speed transmission drum check plate can be applicable to the overlapping such small-sized intermittent feeding mechanism inwardly of principal arm and shifting arm, also can prevent the interference of the link annulus of speed transmission drum check plate and the principal arm of speed change axle, and can prevent the lax of bolt simultaneously.
According to an eighth aspect of the invention, on the basis of the effect aspect a sixth aspect of the present invention or the 7th, because the periphery of bolt does not need the space of insertion tool, near at bolt outer circumferential face can form link annulus, therefore can in guaranteeing sufficient intensity, realize the path that links annulus, and can make speed transmission drum check plate integral miniaturization, thereby can realize the miniaturization of gear.
Brief description of the drawings
Fig. 1 is the internal-combustion engine of two-wheeled use and the sectional view of gear that present embodiment relates to.
Fig. 2 is its concise and to the point right side view.
Fig. 3 is the enlarged view of the gear of Fig. 1.
Fig. 4 is the enlarged view of reverse shift fork, speed transmission drum and the intermittent feeding mechanism of Fig. 1.
Fig. 5 is the exploded perspective view of intermittent feeding mechanism.
Fig. 6 is the plan view of speed transmission drum check plate.
Fig. 7 is the VII-VII sectional view of Fig. 6.
Fig. 8 is the major component enlarged view of speed transmission drum check plate.
Fig. 9 is the side view of the feeding process of the intermittent feeding mechanism while representing gear gear up.
Figure 10 is the side view of the feeding process of the intermittent feeding mechanism while representing gear gear up.
Figure 11 is the side view of the feeding process of the intermittent feeding mechanism while representing gear gear up.
Figure 12 is the side view of the feeding process of the intermittent feeding mechanism while representing gear gear up.
Figure 13 is the side view of the feeding process of the intermittent feeding mechanism while representing gear gear up.
Figure 14 is the side view of the feeding process of the intermittent feeding mechanism while representing gear gear up.
Figure 15 is the side view of the feeding process of the intermittent feeding mechanism while representing gear gear up.
Figure 16 is the major component enlarged view of the position relationship of speed transmission drum check plate while illustrating gear gear up and shifting arm.
Figure 17 is the major component enlarged view of the position relationship of speed transmission drum check plate while illustrating gear gear down and shifting arm.
Figure 18 is the major component enlarged view that represents the speed transmission drum check plate of the scope of the movement locus of pawl 55c, the 55d of shifting arm 55.
Figure 19 is the major component longitudinal sectional view representing to speed transmission drum check plate being carried out filling in preformed powders compression device the state of metallic dust.
Figure 20 is the major component longitudinal sectional view representing the state after the powders compression device compression of Figure 19.
Figure 21 represents to take out from powders compression device the major component longitudinal sectional view of the state of preform.
Figure 22 is the plan view of another embodiment's speed transmission drum check plate.
Figure 23 is the XXIII-XXIII sectional view of Figure 22.
Figure 24 is the major component enlarged view of the position relationship of speed transmission drum check plate while illustrating gear gear up and shifting arm.
Figure 25 is the major component enlarged view of the position relationship of speed transmission drum check plate while illustrating gear gear down and shifting arm.
Figure 26 is the major component enlarged view that represents the speed transmission drum check plate of the scope of the movement locus of pawl 55c, the 55d of shifting arm 55.
Figure 27 is the side view that the speed transmission drum check plate of one embodiment of the invention is applicable to the intermittent feeding mechanism of crab clamp type (nipper-type).
Figure 28 is the side view that the speed transmission drum check plate of another embodiment of the present invention is applicable to the intermittent feeding mechanism of crab clamp type.
Figure 29 is the side view that the speed transmission drum check plate of one embodiment of the invention is applicable to the intermittent feeding mechanism of saw formula (saw-type).
Figure 30 is the side view that the speed transmission drum check plate of another embodiment of the present invention is applicable to the intermittent feeding mechanism of the formula of sawing.
Symbol description:
E internal-combustion engine
M gear
G gear train
50 intermittent feeding mechanisms
51 speed change axles
52 principal arms
55 shifting arms
55c pawl
55d pawl
60 speed transmission drum check plates
60a fillet part
61 plate-like portions
62 pin stop portion
62a cylindrical portion
62b extends reinforcing part
62c circular arc part
62d end
62e end
62f elongation line portion
62g elongation line portion
Contour portion in 62h
70 powders compression devices
77 metal powders
78 preforms
80 speed transmission drum check plates
81 plate-like portions
82 pin stop portion
82a cylindrical portion
82b extends reinforcing part
83 annulus
83a inner peripheral surface
83b outer circumferential face
84 bolts hole
85 bolts
85a head
85b well
90 intermittent feeding mechanisms
91 speed change axles
92 principal arms
95 shifting arms
95c pawl
95d pawl
100 speed transmission drum check plates
101 plate-like portions
102 pin stop portion
105 speed transmission drum check plates
106 plate-like portions
107 pin stop portion
108 link annulus
110 intermittent feeding mechanisms
111 speed change axles
112 principal arms
115 shifting arms
115c pawl
115d pawl
120 speed transmission drum check plates
121 plate-like portions
122 pin stop portion
125 speed transmission drum check plates
126 plate-like portions
127 pin stop portion
128 link annulus.
Embodiment
Below, referring to figs. 1 through Figure 21, one embodiment of the invention are described.
Fig. 1 illustrates to possess to be suitable for the gear M of speed transmission drum check plate 60 of the present invention and the major component longitudinal sectional view of internal-combustion engine E.Internal-combustion engine E so that bent axle 9 towards the mode of left and right horizontal direction be mounted in two-wheeled on.
It should be noted that, in this manual, using two-wheeled direction of advance as front, and determine all around taking the attitude towards front as benchmark.
Internal-combustion engine E is quartastroke engine, it comprise be formed with along the vertical direction the cylinder barrel 5 that connects and this 5 interiorly chimericly have the cylinder block 1 of piston 6, in cylinder block 1 in turn overlapping and the cylinder head 2 that is fastened as a whole and valve mechanism cover 3, bent axle 9 is supported and is separated into the two-part crankcase 4R in left and right, 4L for what can rotate, the crank pin 8 of bent axle 9 links through connecting rod 7 and piston 6.In cylinder head 2, be provided with firing chamber 10, the burning energy in the firing chamber 10 of internal-combustion engine E is converted into the kinetic energy of piston 6 and piston 6 is moved up and down.By moving up and down of this piston 6, rotate through connecting rod 7 driving cranks 9.
Bent axle 9, main shaft 13 and jack shaft 14 arrange in the parallel mode of their axial direction, and are supported to respectively rotation freely by the bearing 15,16,17 arranging on crankcase 4R, 4L in left and right.The rotary driving force of bent axle 9 transmits to main shaft 13 through clutch C that can engaged/disengaged, further transmits to jack shaft 14 through the gear M that possesses gear shift G.
This gear M carries out speed change by the rotation displacement of the speed change axle 51 of rotating under the effect of motor, and wherein, this motor is controlled by not shown gear shift pedal or not shown ECU.
As shown in Figure 3, this gear M possesses gear shift G, this gear shift G possesses the multiple gears that supported by main shaft 13 and jack shaft 14, starts to be arranged with one grade of actuation gear 21, five grades of actuation gears 25, fourth gear actuation gear 24, third gear actuation gear 23, six grades of actuation gears 26, second gear actuation gear 22 on main shaft 13 from right side.One grade of actuation gear 21 forms as one with main shaft 13, five grades of actuation gears 25 are supported as rotating by main shaft 13 axles, third gear actuation gear 23 and fourth gear actuation gear 24 form as one, and chimeric and supported by main shaft 13 by spline, six grades of actuation gears 26 are supported as rotating by main shaft 13 axles, and second gear actuation gear 22 is chimeric with main shaft 13.
And, on jack shaft 14, start to be arranged with from right side one grade by actuation gear 31, five grades by actuation gear 35, fourth gear by actuation gear 34, third gear by actuation gear 33, six grades by actuation gear 36, second gear by actuation gear 32.One grade chimeric by actuation gear 31 and jack shaft 14, five grades chimeric and supported by jack shaft 14 axles by spline by actuation gear 35, fourth gear is supported as rotating by jack shaft 14 axles by actuation gear 33 by actuation gear 34 and third gear, six grades chimeric and supported by jack shaft 14 axles by spline by actuation gear 36, and second gear is supported as rotating by jack shaft 14 axles by actuation gear 32.
This gear shift G is normal engagement type change gear mechanism, corresponding actuation gear, is engaged all the time by actuation gear.
And, as shown in Figures 1 and 2, below main shaft 13 and jack shaft 14, set up supporting reverse shift fork supporting axle 40 and speed transmission drum 44 by left and right crankcase 4R, 4L, on reverse shift fork supporting axle 40, the first reverse shift fork 41, the second reverse shift fork 42, the 3rd reverse shift fork 43 of the engagement of the gear for changing described gear shift G are supported as sliding axially freely.
The first reverse shift fork 41 with five grades by actuation gear 35 on arrange groove 35a engage, the second reverse shift fork 42 engage with the groove 23a arranging on third gear actuation gear 23 being integrally formed and fourth gear actuation gear 24, the 3rd reverse shift fork 43 with six grades by actuation gear 36 on the groove 36a of setting engage.
As shown in Figure 4, the axial direction end of speed transmission drum 44 is to rotate freely by crankcase 4R, the 4L supporting of left and right, be formed with three cam paths 45,46,47 on the bulging surface of speed transmission drum 44, teat 41a, 42a, the 43a of described reverse shift fork 41,42,43 engage with cam path 45,46,47 respectively.In the time that speed transmission drum 44 rotates predetermined angular, teat 41a, 42a, the 43a of reverse shift fork are moved axially along speed transmission drum respectively by cam path 45,46,47 guiding respectively, therefore determine the position of the axial direction of the speed transmission drum 44 of reverse shift fork 41,42,43 by the angle of swing of speed transmission drum 44, thereby it is moved to assigned position.
By above-mentioned reverse shift fork 41,42,43 is moved to assigned position respectively along the axial direction of reverse shift fork supporting axle 40, thereby make the third gear actuation gear 23 chimeric with main shaft 13 splines and fourth gear actuation gear 24 or with jack shaft 14 splines chimeric five grades by actuation gear 35 or six grades by actuation gear 36 to the left and right the assigned position of direction move, and chimeric by the dog-clutch and the adjacent gear that make to arrange in their side, carry out the switching of gear.
Be provided with in the end of described speed transmission drum 44 centered by the axis of speed transmission drum 44 and the intermittent feeding mechanism 50 that speed transmission drum 44 is intermittently rotated, this intermittent feeding mechanism 50 links with described speed change axle 51, in the time that speed change axle 51 is rotated predetermined angular, speed transmission drum 44 intermittently rotates to be predetermined angular.
Based on Fig. 4 to Figure 18, the structure of this intermittent feeding mechanism 5 is described.
Intermittent feeding mechanism 50 possesses: with described speed change axle 51 chimeric and with speed change axle 51 integratedly centered by the axial direction of speed change axle 51 and swing principal arm 52; Be fixed on crankcase 4 and limit the banking pin 53 of the pendulum angle of described principal arm 52; Backspring 54 to from the principal arm 52 swinging to the Return-ing direction application of force; Connect to the shifting arm 55 that can slide and swing by guide finge 56,57 with principal arm 52 together with principal arm 52; Spring 58 to from principal arm 52 to the speed change axle 51 side application of forces; Possessing outer circumferential face is the plate-like portion 61 of camming surface 61a and the speed transmission drum check plate 60 from these plate-like portion 61 outstanding pin stop portion 62 that form; By this speed transmission drum check plate 60 and the fastening all-in-one-piece bolt 63 of described speed transmission drum 44; And the speed transmission drum retainer 65 that the camming surface 61a of described speed transmission drum check plate 60 is pressed to the central axis direction of speed transmission drum check plate 60.
As shown in Figure 5, in described principal arm 52, the hole 52a of chimeric speed change axle 51 and be respectively used to the mode that hole 52b, the 52c of chimeric described guide finge 56,57 be configured on straight line with the central point in hole separately and wear, and be provided with symmetrically to pawl 52f, the 52g of shifting arm 55 side bendings across described straight line.In addition, adjacent with the hole 52a of chimeric speed change axle 51 and be formed with slotted hole 52d, be formed with two the teat 52es side-prominent to shifting arm 55 from hole 52a across the position of slotted hole 52d.
The banking pin 53 being fixed on crankcase 4 runs through described slotted hole 52d, owing to being wound on two sides' end 54a and the outside butt of the teat 52e from principal arm 52 outstanding settings of the backspring 54 in speed change axle 51, therefore in the time that principal arm 52 swings by speed change axle 51, one side's teat 52e pushes the end 54a of backspring 54 open to the direction of opening backspring 54, and the opposing party's end 54a is by banking pin 53 constrained motions, thus principal arm 52 by backspring 54 to the direction application of force of returning to the position before swinging.And in the time that the angle of oscillation of principal arm 52 increases, the inner peripheral surface of slotted hole 52d and banking pin 53 butts and limit the swing of principal arm 52, avoid more than principal arm 52 swings to predetermined angular.
Adjacent with described principal arm 52 and dispose shifting arm 55, central shaft and be provided with slotted hole 55a, 55b along its length on this shifting arm 55, this slotted hole 55a, 55b engage with the pin 56,57 being embedded in hole 52b, the 52c of described principal arm 52, thereby this slotted hole 55a, 55b can be at the square upward slidings of center line alongst with respect to principal arm 52.In addition, be wound under the effect of the spring 58 on pin 56, shifting arm 55 is pushed to speed change axle direction all the time.
On shifting arm 55, be provided with respect to length direction central shaft and symmetrically turn back and to speed transmission drum direction outstanding pawl 55c, 55d, this pawl 55c, 55d follow the swing of principal arm 52 and swing centered by the axis of speed change axle 51.In addition, the side of pawl 55c, 55d is formed as camming surface 55e, 55f.
As shown in Figure 5, adjacent with described shifting arm 55 and be equipped with speed transmission drum check plate 60, this speed transmission drum check plate 60 is fastened as a whole by bolt 63 and speed transmission drum 44, thus rotation with supported the speed transmission drum 44 for rotating by crankcase 4 together with.
As shown in FIG. 6 and 7, this speed transmission drum check plate 60 is made up of plate-like portion 61, pin stop portion 62.
The outer circumferential face of plate-like portion 61 is formed as camming surface 61a, and this camming surface 61a is formed as being equally spaced provided with the petal of protuberance 61b and recess 61c.In the present embodiment, protuberance 61b and recess 61c respectively have respectively 6, and the central angle being arranged to centered by the central point 60a of speed transmission drum check plate 60 becomes respectively 60 degree.And, be formed with the hole 61d connecting for bolt 63 in the central authorities of plate-like portion 61.
As shown in Figure 6, pin stop portion 62 is multiple cylindrical portion, and they are positioned at the substantial middle on the line that the most outstanding part of the central point 60a of speed transmission drum check plate 60 and protuberance 61b is linked up, and to form from the outstanding mode of plate-like portion 61.
Pin stop portion 62 engages with pawl 55c, the 55d of described shifting arm 55, in the time of gear gear up, follow the rotation of speed change axle 51, principal arm 52 swings, the shifting arm 55 engaging with principal arm 52 also swings, the pawl 55d of shifting arm 55 presses pin stop portion 62, speed transmission drum check plate 60 is rotated, follow in this speed transmission drum 44 and be rotated, make reverse shift fork 41,42,43 move to respectively the assigned position of the angle of the rotation of setting speed transmission drum 44 for, thereby gear moved and engage the gear of regulation, making gear M gear up.
In the time of gear down, pin stop portion 62 is pressed by the pawl 55c of shifting arm 55, contrary direction rotation while making speed transmission drum check plate 60 to gear up, thus make gear M gear down.
As shown in Figure 8, the shape of this pin stop portion 62 is Cylindrical objects, and be formed with cylindrical portion 62a and inner circumferential side reinforcing part 62b that rotating shaft center direction from from cylindrical portion 62a to speed transmission drum check plate 60 extends, the shape of cross section of pin stop portion 62 is so-called horse shoe shaped, it is by circular arc part 62c, the 62f of elongation line portion, 62g and the interior contour 62h of portion form, wherein, the pawl 55c of circular arc part 62c and described shifting arm 55, 55d joins, the 62f of elongation line portion, 62g is from each end 62d of this circular arc part 62c, 62e towards the rotating center side of speed transmission drum check plate 60 not enter the pawl 55c of shifting arm 55, the mode of the inner side of the scope of the track of 55d motion extends, the interior contour 62h of portion is by the 62f of elongation line portion, 62g links up.And the 62f of elongation line portion, 62g tangentially extend smoothly from circular arc part 62c.
In addition, as shown in Figure 7, in the longitudinal section of speed transmission drum check plate 60, the boundary portion of rotating center side in the boundary portion of pin stop portion 62 and plate-like portion 61, speed transmission drum check plate 60 is the boundary portion beyond the interior contour 62h of portion of pin stop portion 62, and vertical sectional shape is formed as the fillet part 60r of level and smooth round.
The track median claw 55c of the motion of the pawl 55c of the shifting arm 55 when the track median claw 55d of the motion of the pawl 55d of the shifting arm 55 be illustrated in respectively gear M gear up in Fig. 8 time approaches the position of rotating center direction of speed transmission drum check plate 60 and gear M gear down most approaches the position of the rotating center direction of speed transmission drum check plate 60 most.
And, as shown in Fig. 4 and Fig. 9, adjacent with described speed transmission drum check plate 60 and dispose speed transmission drum retainer 65.Speed transmission drum retainer 65 possess by be arranged on the supporting axle 68 of teat 4a on crankcase 4 supporting, by supporting axle 68 axles supportings be swing arm 67 freely, by the front end axle supporting of arm 67 be rotation freely and be pressed in the cam part 61a of speed transmission drum check plate 60 roller 66, be wound on the upper and pair roller 66 of the teat 4a of crankcase 4 to the backspring 69 of the direction application of force that is pressed in cam part 61a, follow the rotation of speed transmission drum check plate 60, roller 66 is pressed in the cam part 61a of speed transmission drum check plate 60, makes speed transmission drum check plate 60 spend intermittently feeding every 60.
Based on Fig. 9 to Figure 15, the action of the intermittent feeding mechanism 50 while below explaining gear M gear up.
As shown in Figure 9, under the effect of the motor that speed change axle 51 is controlled at the gear shift pedal by not shown or not shown ECU during to gear up direction rotation, follow in this, principal arm 52 swings centered by speed change axle 51 and upward, the shifting arm 55 engaging with this principal arm 52 by guide finge 56,57 also starts to swing upward, the pawl 55d of shifting arm 55 presses the feeding pin 62 of speed transmission drum check plate 60, and speed transmission drum check plate 60 is rotated together with speed transmission drum 44 to the counter clockwise direction in Fig. 9.
Afterwards, as shown in figure 10, the arm 67 of speed transmission drum retainer 65 pair roller 66 under the effect of backspring 69, to the direction application of force of cam part 61a of pressing speed transmission drum check plate 60, but is followed the rotation of speed transmission drum check plate 60, protuberance 61b presses roller 66 to foreign side, arm 67 is swung laterally.
And as shown in figure 11, in the time that speed transmission drum check plate 60 rotates, roller 66 is crossed protuberance 61b, and arm 67 returns under the effect of backspring 69, and roller 66 is chimeric with recess 61c, thereby speed transmission drum check plate 60 rotates predetermined angular.Now, in the time that principal arm 52 swings predetermined angular, the inwall of the slotted hole 52d of principal arm 52 and banking pin 53 butts, thus restriction principal arm 52 further swings.
Afterwards, as shown in figure 12, principal arm 52, under the effect of backspring 54, rotates as center speed change axle 51 in the mode of returning to clockwise direction, shifting arm 55 is rotation thereupon also, thus feeding pin 62 butts of the camming surface 55f of the pawl 55d of shifting arm 55 and speed transmission drum check plate 60.
And then, as shown in FIG. 13 and 14, the roller 66 of speed transmission drum retainer 65 is chimeric with the recess 61c of speed transmission drum check plate 60, speed transmission drum check plate 60 is pressed, therefore, speed transmission drum check plate 60 can not rotate, shifting arm 55 cross with the pawl 55d of shifting arm 55 pin stop portion 62 mode antagonistic spring 58 active force and move to the outstanding direction of the opposition side towards speed change axle, and rotate to clockwise direction together with principal arm 52 simultaneously, thereby as shown in figure 15, principal arm 52 and shifting arm 55 turn back to original state.By repeatedly carrying out this action, speed transmission drum check plate 60 intermittently rotates, thus gear M gear up step by step.
The motion of the intermittent feeding mechanism 50 when gear M gear down is not shown, but speed change axle 51 is rotated to clockwise direction, principal arm 52 and shifting arm 55 opposition side during to gear up swings, by the pawl 55c of shifting arm 55, speed transmission drum check plate 60 is intermittently rotated to clockwise direction, thereby make gear M gear down.
Pin stop portion 62 when gear M gear up shown in Figure 16 and the position relationship of the pawl 55d of shifting arm 55.First, as shown in figure 10, in the time that pawl 55d starts with pin stop portion 62 butt, pawl 55d is positioned at 55d (1), and then in the time that speed transmission drum check plate 60 rotates and becomes the state shown in Figure 11, pawl 55d is positioned at 55d (2), and return and under the camming surface 55f of pawl 55d and the state of pin stop portion 62 butts at shifting arm 55, pawl 55d is positioned at 55d (3), and then outwards slide with respect to the central direction of speed transmission drum check plate 60 from principal arm at shifting arm, and pawl 55d crosses under the state of pin stop portion 62, pawl 55d is positioned at 55d (4).
In addition, the pin stop portion 62 of the speed transmission drum check plate 60 in the time that Figure 17 illustrates gear M gear down and the position relationship of the pawl 55c of shifting arm 55.The pawl 55c of shifting arm 55 moves in turn to 55c (1), 55c (2), 55c (3), 55c (4).
By above explanation, as shown in figure 18, the scope of the track that pawl 55c, the 55d of shifting arm 55 moves with respect to speed transmission drum check plate 60 becomes by the scope shown in hachure.The 62f of elongation line portion, the 62g extending from the circular arc part 62c of the sectional shape of described pin stop portion 62a is formed as not entering in the scope by the track of the pawl 55c shown in the hachure of Figure 18 and 55d motion.
Like this, pin stop portion 62 forms from the extended prolongation reinforcing part of cylindrical portion 62a 62b, and the sectional shape of this pin stop portion 62 is formed as horse shoe shaped, , it is by the circular arc part 62c of pin stop portion 62, the 62f of elongation line portion, 62g and the interior contour 62h of portion form, wherein, the pawl 55c of circular arc part 62c and shifting arm 55, 55d joins, the 62f of elongation line portion, 62g is from each end 62d of circular arc part 62c, 62e towards the rotating center side of speed transmission drum check plate 60 not enter the pawl 55c of shifting arm 55, the mode of the inner side of the scope of the track of 55d motion extends, the interior contour 62h of portion is by the 62f of elongation line portion, 62g links up, therefore, can not hinder the pawl 55c of shifting arm 55, the motion of 55d, and can increase the section area of pin stop portion 62, thereby can form with respect to pawl 55c, 55d produce shearing force strength increase pin stop portion 62.
Below, based on Figure 19 to Figure 21, the manufacture method of described speed transmission drum check plate 60 is at length described.
Described speed transmission drum check plate 60 be by powders compression device 70 using compressing as the metal powder 77 of powder after preforming, this preform 78 is moved into heating in oven, sintering and the member manufactured.
Powders compression device 70 possesses punch die 71, is configured in the central axle 72 of punch die 71, be chimericly arranged in punch die 71 and upper punch 73, the first low punch 74 and the second low punch 75 that can be mobile along the vertical direction.Form the end face of the pin stop portion 62b of speed transmission drum check plate 60 by the first low punch 74, form the plane of the pin stop portion side of the plate-like portion 62b of speed transmission drum check plate 60 by the second low punch, in addition, form the plane of speed transmission drum 44 sides of plate-like portion 62b by upper punch.The first low punch and the second low punch are independently controlled respectively and are moved to its above-below direction, and may be moved into the best compression ratio obtaining for forming plate-like portion 61 and pin stop portion 62.
As shown in figure 19, on the punch die 71 of powders compression device 70, settle axle 72, the first low punch 74, the second low punch 75, in this punch die 71, fill metallic dust 77.In the present embodiment, distance taking the distance of the upper surface of the first low punch 74 and the upper surface of punch die 71 as the upper surface of the length of the roughly twice of the thickness of plate-like portion 61 and the upper surface of the first low punch and the second low punch 75 is the mode of the length of the roughly twice of the height of pin portion 62, the first low punch 74 and the second low punch 75 are placed on punch die 71, so that the volume of the metallic dust 77 of filling becomes the volume of the roughly twice of the volume of the speed transmission drum check plate 60 after sintering.
As metallic dust 77, for example, use to be imbued with the iron of intensity, hardness, Tough etc. or the metallic dust of iron-based alloy is the powder that main component the powder that is mixed with nickel, manganese etc. obtain.
Afterwards, as shown in figure 20, upper punch 73, punch die 71 and the first low punch are moved downwards, make the first low punch drop to slide block 76 butts till, metal powder 77 is compressed with the compression ratio of regulation, in the present embodiment, boil down to 1/2nd, thus obtain the preform being formed by metal powder 77 78 of speed transmission drum check plate 60.
And, as shown in figure 21, upper punch 73 is moved upward, and the first low punch 74 is moved downwards integratedly with punch die 71, till axle 72 being moved to downwards become identical height with the upper surface of punch die 71, preform 78 is taken out from powders compression device 70.
The preform 78 of the speed transmission drum check plate 60 of this compression forming is moved in warmed-up sintering furnace, and carry out sintering by carrying out stipulated time heating, thereby obtain the speed transmission drum check plate 60 of the desired shape that plate-like portion 61 and pin stop portion 62 form as one.
In the speed transmission drum check plate 60 of the present embodiment, because pin stop portion 62 is formed with cylindrical portion 62a and the prolongation reinforcing part 62b from this cylindrical portion 62a extension, therefore compared with being formed as columned existing pin stop portion, section area expands, and the intensity of pin stop portion 62 improves.
In addition, because the shape of cross section of pin stop portion 62 is formed as horse shoe shaped, , it is by the circular arc part 62c of pin stop portion 62, the 62f of elongation line portion, 62g and the interior contour 62h of portion form, wherein, the pawl 55c of circular arc part 62c and shifting arm 55, 55d joins, the 62f of elongation line portion, 62g is from each end 62d of circular arc part 62c, 62e towards the rotating center side of speed transmission drum check plate 60 not enter the pawl 55c of shifting arm 55, the mode of the inner side of the scope of the track of 55d motion extends, the interior contour 62h of portion is by the 62f of elongation line portion, 62g links up, therefore, can not hinder the pawl 55c of shifting arm 55, the motion of 55d, and can increase the section area of pin stop portion 62, thereby can form with respect to pawl 55c, 55d produce shearing force strength increase pin stop portion 62.
In addition, the speed transmission drum check plate 60 of the present embodiment by by plate-like portion 61 and pin stop portion 62 integratedly sintering manufacture, therefore do not need feeding pin to be pressed into plate-like portion, can realize parts number of packages and the processing reduction of number of packages and the mitigation of machining accuracy, thereby can realize the reduction of cost.
In addition, in the speed transmission drum check plate 60 of the present embodiment, pin stop portion 62 forms the prolongation reinforcing part 62b extending from cylindrical portion 62a, therefore compared with being formed as columned existing pin stop portion, section area broadens, and the 62f of elongation line portion, 62g tangentially extends smoothly from circular arc part 62c, therefore metal powder 77 easily spreads all over the inside of the mould that forms pin stop portion 62 equably, metal powder 77 is when compressed, being evenly distributed of the density of powder compact, can suppress the generation of the reduction of the powder density in pin stop portion 62, therefore can improve the intensity of pin stop portion 62, and, due to the density of management metal powder 77, guarantee the intensity of the member after sintering, the special management operations such as the mold management therefore can cut down impact briquetting time, and, owing to meeting the density of speed transmission drum check plate 60, intensity, therefore sintering does not need to append forging process after generating, thereby can realize the reduction of cost.
And, in the longitudinal section of the speed transmission drum check plate 60 of the present embodiment, in the boundary portion of pin stop portion 62 and plate-like portion 61, the boundary portion that is positioned at the rotating center side of speed transmission drum check plate 60 is the boundary portion beyond the scope of the 62h of contour portion of pin stop portion 62, vertical sectional shape is formed as the fillet part 60r of level and smooth round, therefore the intensity of the root of pin stop portion 62 improves, and metal powder 77 is carried out to compression forming and the variation of the area of the cross section of plate-like portion 61 when preforming and pin stop portion 62 reduces, thereby the reduction of the density of metal powder reduces, can realize the raising of the intensity of pin stop portion 62.
In addition, by independently controlling respectively the first low punch 74 and the second low punch 75, thereby plate-like portion 61 and pin stop portion 62 are compressed with best compression ratio respectively, therefore can make the density of the powder compact of pin stop portion 62 become the best, can realize the raising of the intensity of pin stop portion 62.
The mould of the pin stop portion 62 during due to compression forming is made up of the first low punch 74 and the second low punch 75, therefore metal powder 77 can be spreaded all over fully and be filled in the mould of pin stop portion 62, thereby can improve the density of the metal powder of the pin stop portion 62 of preform 78, can manufacture the speed transmission drum check plate 60 that possesses the pin stop portion 62 that intensity is high.
Be suitable in the above-described embodiment described speed transmission drum check plate 60, but also can be as shown in FIG. 22 and 23, be suitable for and possess the speed transmission drum check plate 80 that links the link annulus 83 that extends reinforcing part 82b.
This speed transmission drum check plate 80 is identical with pin stop portion 62 with the plate-like portion 61 of the speed transmission drum check plate 60 of above-described embodiment, has: the plate-like portion 81 around with the camming surface 81a joining with speed transmission drum retainer 65, whole week of plate-like portion 81 upwards every predetermined distance from a side of plate-like portion 81 outstanding arrange and with the pawl 55c of the shifting arm 55 of the principal arm 52 of fixing speed change axle 51, multiple pin stop portion 82 of 55d engaging, wherein, this pin stop portion 82 is column, and the prolongation reinforcing part 82b that is formed with cylindrical portion 82a and extends towards the rotating center side of speed transmission drum check plate 80 from this cylindrical portion 62a, the shape of cross section of this pin stop portion 82 is horse shoe shaped, , it is by circular arc part 82c, the 82f of elongation line portion, 82g and the interior contour 82h of portion form, wherein, the pawl 55c of circular arc part 82c and described shifting arm 55, 55d butt, the 82f of elongation line portion, 82g is from each end 82d of this circular arc part 82c, 82e towards the rotating center side of speed transmission drum check plate 80 not enter the pawl 55c of described shifting arm 55, the mode of the inner side of the scope of the track of 55d motion extends, the interior contour 82h of portion is by the 82f of elongation line portion, 82g links up, and, form the link annulus 83 of the ring-type centered by the running shaft of speed transmission drum check plate 80 to link the mode of prolongation reinforcing part 82b of pin stop portion 82, this link annulus 83 is formed as with pin stop portion 82 from the identical height of the outstanding height of plate-like portion 81 from the outstanding height of plate-like portion 81.
As shown in figure 23, this link annulus 83 do not hinder shifting arm 55 pawl 55c, 55d motion position link extend reinforcing part.The speed transmission drum check plate 80 of the present embodiment when gear gear up shown in Figure 24 and the position relationship of shifting arm 55, the speed transmission drum check plate 80 of the present embodiment when gear gear down shown in Figure 25 and the position relationship of shifting arm 55.Therefore as shown in figure 26, pawl 55c, the 55d of shifting arm 55 are by the scope shown in hachure with respect to the scope of the movement locus of speed transmission drum check plate 80.
And the speed transmission drum check plate 80 of the present embodiment is formed with the bolt hole 84 that is positioned at the rotating center of speed transmission drum check plate 80 and connect for bolt.Bolt runs through described bolt hole 84 and is fastened onto speed transmission drum 44, can use the bolt 63 using in embodiment 1, but also can use the concave head bolt 85 that is provided with well 85b at head 85a.
Described link annulus 83 is formed as the height roughly the same with the height of head of described bolt 85 from the outstanding height of plate-like portion 81.
In the speed transmission drum check plate 80 of the present embodiment, owing to arranging and linking annulus 83 in the mode that the prolongation reinforcing part 82b of pin stop portion 82 is linked, therefore can strengthen plate-like portion 81 by linking annulus 83, and further strengthen the prolongation reinforcing part 82b of pin stop portion 82, thereby the intensity of pin stop portion 82 is further improved.
And, by linking annulus 83, the section area of pin stop portion 82 is further expanded, in the time that powders compression is carried out to preforming, pulverous agglomerated material can be filled into more fully to pin stop portion 82 and link in the mould of annulus 83, and can reduce the variation of the section area of plate-like portion 81 and pin stop portion 82 and link annulus 83, therefore can further improve the intensity of pin stop portion 82.
In addition, because the 82f of elongation line portion, 82g extend smoothly from the circular-arc part 82c of pin stop portion 82, therefore near the formation of joining with pawl 55c, 55d shifting arm 55 from cylindrical portion 82a extends reinforcing part 82b, thereby can obtain possessing the pin stop portion 82 of higher intensity.
And, because the inner side of the inner peripheral surface 83a linking annulus 83 is provided with the bolt hole 84 for construction bolt 85, therefore bolt 85 is inserted and when fastening to the bolt hole 84 of speed transmission drum check plate 80, the inner peripheral surface 83a that links annulus 83 becomes the guide of bolt, thereby assembling operation is improved.
In addition, because the height of the link height of annulus 83 and the head 85a of bolt 85 is roughly equal, the head 85a that therefore can prevent bolt 85 exposes from speed transmission drum check plate 80, in the time of other parts of assembling, can prevent from interfering because of bolt head 85a the variation of the fastening force causing.
And, as the bolt that speed transmission drum check plate 80 is anchored on to speed transmission drum 44, use the concave head bolt 85 that is provided with well 85b at head 85a, therefore do not need the space of insertion tool in the periphery of bolt 85, can near the outer circumferential face of bolt 85, formation link annulus 83, therefore can in guaranteeing enough intensity, realize the path that links annulus 83, make speed transmission drum check plate 80 integral miniaturization, thereby can realize the miniaturization of gear M.
In addition, also can make this link annulus 83 high from the height of the head 85a of bolt 85 described in the outstanding aspect ratio of plate-like portion 81.Like this, speed transmission drum check plate 80 can be applicable to small-sized intermittent feeding mechanism 50 inwardly, also can prevent the interference of link annulus 83 with the principal arm 52 of speed change axle 51 of speed transmission drum check plate 80 simultaneously, and can prevent the lax of bolt 85.
In the above-described embodiment, speed transmission drum check plate 60,80 is applicable to arrange the small-sized intermittent feeding mechanism 50 of pawl 55c, the 55d of shifting arm 55 inwardly with the overlapping mode of principal arm 52, be applicable to the intermittent feeding mechanism 50 of so-called small-sized crab clamp type, but also can be applicable to the intermittent feeding mechanism 90 of so-called crab clamp type as shown in Figure 27.The intermittent feeding mechanism 90 of this crab clamp type possesses speed change axle 91, principal arm 92, banking pin 93, backspring 94, shifting arm 95, guide finge 96,97, and pawl 95c, the 95d of shifting arm 95 be not to arrange outwardly with the overlapping mode of principal arm 92.
The intermittent feeding mechanism 90 of this crab clamp type uses speed transmission drum check plate 100, and this speed transmission drum check plate 100 possesses plate-like portion 101 and pin stop portion 102, and pin stop portion 102 is suitable for the pin stop portion 62 of the speed transmission drum check plate 60 of above-described embodiment.
And, as shown in figure 28, the intermittent feeding mechanism 90 of this small-sized crab clamp type can use speed transmission drum check plate 105, and this speed transmission drum check plate 105 possesses plate-like portion 106, is suitable for the pin stop portion 107 of the pin stop portion 82 of the speed transmission drum check plate 80 of above-described embodiment, links annulus 108 or is suitable for the link annulus 108 of the link annulus 83 of the speed transmission drum check plate 80 of above-described embodiment.
And, in the intermittent feeding mechanism 110 of so-called saw formula as shown in Figure 29, also can be suitable for the speed transmission drum check plate 60,80 of above-described embodiment.The intermittent feeding mechanism 110 of this saw formula possesses speed change axle 111, principal arm 112, banking pin 113, backspring 114, shifting arm 115, guide finge 116, spring 117, principal arm 112 and shifting arm 115 link by pin 116, and shifting arm 115 is linked and is biased with the end of principal arm 112 by spring 117.
The intermittent feeding mechanism 110 of this saw formula uses speed transmission drum check plate 120, and this speed transmission drum check plate 120 possesses plate-like portion 121 and has been suitable for the pin stop portion 122 of the pin stop portion 62 of the speed transmission drum check plate 60 of above-described embodiment.
And, as shown in figure 30, the intermittent feeding mechanism 110 of this saw formula can also use speed transmission drum check plate 125, and this speed transmission drum check plate 125 possesses plate-like portion 126, has been suitable for the pin stop portion 127 of the pin stop portion 82 of the speed transmission drum check plate 80 of above-described embodiment, links annulus 128 or has been suitable for the link annulus 128 of the link annulus 83 of the speed transmission drum check plate 80 of above-described embodiment.
Claims (8)
1. a speed transmission drum check plate (60), it forms gear (M), it is characterized in that having plate-like portion (61) and multiple pin stop portion (62),
Described plate-like portion (61) has the camming surface (61a) joining with speed transmission drum retainer (65) around,
Described multiple pin stop portion (62) is upwards outstanding setting the in a side from this plate-like portion (61) every predetermined distance of the whole week of this plate-like portion (61), and engage with the pawl (55c, 55d) of the shifting arm (55) of the principal arm (52) of fixing speed change axle (51)
This pin stop portion (62) is column, and the prolongation reinforcing part (62b) that is formed with cylindrical portion (62a) and extends towards the rotating center side of speed transmission drum check plate (60) from this cylindrical portion (62a)
The shape of cross section of this pin stop portion (62) is by circular arc part (62c), (the 62f of elongation line portion, 62g) and interior contour portion (62h) form horse shoe shaped, wherein pawl (the 55c of circular arc part (62c) and described shifting arm (55), 55d) butt, (the 62f of elongation line portion, 62g) from each end (62d of this circular arc part (62c), 62e) towards the rotating center side of speed transmission drum check plate (60) not enter the pawl (55c of described shifting arm (55), 55d) mode of the inner side of the scope of the track of motion extends, interior contour portion (62h) is by (the 62f of this elongation line portion, end 62g) links up,
Described plate-like portion (61) and described pin stop portion (62) be by compressing powder and after one preforming, carries out sintering and manufacture.
2. speed transmission drum check plate according to claim 1 (80), is characterized in that,
Described speed transmission drum check plate possesses the link annulus (83) that the prolongation reinforcing part (82b) of pin stop portion (82) is linked up.
3. speed transmission drum check plate according to claim 1 (60), is characterized in that,
Elongation line portion (62f, 62g) in the sectional shape of described pin stop portion (62) tangentially extends smoothly from circular arc part (62c).
4. speed transmission drum check plate according to claim 2 (80), is characterized in that,
Elongation line portion (82f, 82g) in the sectional shape of described pin stop portion (82) tangentially extends smoothly from circular arc part (82c).
5. according to the speed transmission drum check plate (80) described in claim 2 or 4, it is characterized in that,
Be provided with in the inner side of the inner peripheral surface (83a) of described link annulus (83) bolt hole (84) that confession connects for the bolt (85) of described speed transmission drum check plate is installed, described link annulus (83) doubles as the guide of described bolt (85).
6. speed transmission drum check plate according to claim 5 (80), is characterized in that,
The height of described link annulus (83) equates with the height of the head (85a) of described bolt (85).
7. speed transmission drum check plate according to claim 5 (80), is characterized in that,
Described speed transmission drum check plate (80) is for to arrange the gear (M) of shifting arm (55) inwardly with the overlapping mode of described principal arm (52), and the height of the head (85a) of bolt (85) is high described in the aspect ratio of described link annulus (83).
8. according to the speed transmission drum check plate (80) described in claim 6 or 7, it is characterized in that,
Described bolt (85) is made up of the concave head bolt (85) that is provided with well (85b) at bolt head (85a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011044689A JP5709585B2 (en) | 2011-03-02 | 2011-03-02 | Shift drum stopper plate |
| JP2011-044689 | 2011-03-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102654195A CN102654195A (en) | 2012-09-05 |
| CN102654195B true CN102654195B (en) | 2014-12-10 |
Family
ID=46729874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210026209.6A Expired - Fee Related CN102654195B (en) | 2011-03-02 | 2012-02-07 | Shift drum stop plate |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5709585B2 (en) |
| CN (1) | CN102654195B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358274B (en) * | 2013-03-25 | 2017-09-05 | 日立化成株式会社 | Sintered mechanical part and its manufacture method |
| EP2818768B1 (en) * | 2013-06-28 | 2019-01-09 | Honda Motor Co., Ltd. | Shift position detecting device |
| JP2016155632A (en) * | 2015-02-24 | 2016-09-01 | 村田機械株式会社 | Yarn feeding bobbin distribution device and bobbin supply system |
| CN111255893A (en) * | 2020-01-15 | 2020-06-09 | 重庆隆鑫机车有限公司 | Novel gear shifting limiting structure and engine |
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|---|---|---|---|---|
| JPS5874936A (en) * | 1981-10-29 | 1983-05-06 | Honda Motor Co Ltd | Changing-over device for speed change gear |
| US4491031A (en) * | 1981-05-21 | 1985-01-01 | Honda Giken Kogyo Kabushiki Kaisha | Shift drum type speed change mechanism for motorcycles |
| JPH09210201A (en) * | 1996-01-31 | 1997-08-12 | Yamaha Motor Co Ltd | Stopper plate of shift cam feed gear |
| CN2403944Y (en) * | 1999-12-03 | 2000-11-01 | 财团法人工业技术研究院 | Gearbox shifting position signal extractor |
| CN101839329A (en) * | 2010-05-07 | 2010-09-22 | 江门市冷跑王休闲车动力制造有限公司 | Motorcycle gear shift mechanism |
| EP2258969A1 (en) * | 2008-03-31 | 2010-12-08 | Honda Motor Co., Ltd. | Multi-stage transmission |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496041Y1 (en) * | 1969-12-23 | 1974-02-13 | ||
| JP3175542B2 (en) * | 1995-07-05 | 2001-06-11 | 三菱マテリアル株式会社 | Sintering forging method for parts with pins |
| JP4270334B2 (en) * | 1999-01-11 | 2009-05-27 | 本田技研工業株式会社 | Always-mesh transmission for vehicle |
| JP4712952B2 (en) * | 2000-10-18 | 2011-06-29 | 川崎重工業株式会社 | Change mechanism of transmission |
-
2011
- 2011-03-02 JP JP2011044689A patent/JP5709585B2/en not_active Expired - Fee Related
-
2012
- 2012-02-07 CN CN201210026209.6A patent/CN102654195B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491031A (en) * | 1981-05-21 | 1985-01-01 | Honda Giken Kogyo Kabushiki Kaisha | Shift drum type speed change mechanism for motorcycles |
| JPS5874936A (en) * | 1981-10-29 | 1983-05-06 | Honda Motor Co Ltd | Changing-over device for speed change gear |
| JPH09210201A (en) * | 1996-01-31 | 1997-08-12 | Yamaha Motor Co Ltd | Stopper plate of shift cam feed gear |
| CN2403944Y (en) * | 1999-12-03 | 2000-11-01 | 财团法人工业技术研究院 | Gearbox shifting position signal extractor |
| EP2258969A1 (en) * | 2008-03-31 | 2010-12-08 | Honda Motor Co., Ltd. | Multi-stage transmission |
| CN101839329A (en) * | 2010-05-07 | 2010-09-22 | 江门市冷跑王休闲车动力制造有限公司 | Motorcycle gear shift mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5709585B2 (en) | 2015-04-30 |
| JP2012180908A (en) | 2012-09-20 |
| CN102654195A (en) | 2012-09-05 |
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