JPS59194226A - Selecting mechanism of speed change operating device of vehicle - Google Patents

Abstract

PURPOSE:To select and control accurately an interlocking plate and to form compactly the whole with good assembling performance by fixing a selection shaft to the interlocking plate supported rotatably on a fitting base. CONSTITUTION:The selection shaft is fixed to the interlocking plate supported rotatably on the fitting base, and the free end part of a selection node arm is coupled with this selection shaft. For example, a shift lever 48 is supported pivotally on the fitting base 41 by a pivotal support shaft 49, and an engagement pin 50 is projected at one terminal of this shift lever 48 and fitted in an engagement recessed part 51 formed at one terminal of a shift member 45. Then, the selection shaft 55 is welded to the interlocking plate 44 and one terminal of this selection shaft 55 is run through an arcuate hole 56 bored in the fitting base 41 to form a coupling male part 57 which projects out of the fitting base 41. Then, the coupling male part 57 is engaged with a coupling female part 58 formed on a change piece 54 fixed atop of a shift rod 40.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a vehicle for selecting and controlling shifts of the shift fork group, which is interposed between a shift fork group connected to a change bar and a shift gear mechanism for switching and controlling the gear mechanism. The present invention relates to an improvement of a select mechanism in a speed change operating device.

In the speed change operation device, it is desirable that both the select mechanism and the shift mechanism provided therein operate accurately, smoothly and easily, that it is easy to assemble, and that the entire device can be formed compactly.

Therefore, the present invention has one ink clock plate for selection.
- To provide a select mechanism in a new gear shift operating device, which is precisely and selectively positioned at each select position of 2nd gear, 3rd gear, 3rd gear, 4th gear, etc., and which is extremely easy to assemble and can be formed compactly as a whole. The purpose is to

In order to achieve such an object, the present invention provides a select shaft fixed to one side of an ink clock plate rotatably supported on a mounting base, and a select moderation arm pivotally supported on the select shaft. A return spring is provided between the select moderation arm and the mounting base for holding the select moderation arm in a neutral position; The arm is equipped with a moderation mechanism to provide moderation at each select position.

Hereinafter, an embodiment will be described in which the device of the present invention is implemented in a speed change operation system having a multi-stage transmission with five forward speeds and one reverse speed.

First, with reference to Figures 1 to 4, we will explain the gear train switching control mechanism of a multi-stage transmission with five forward speeds and one reverse speed. At the same time, a movable fork shaft 3 is supported in parallel with the fixed fork shaft 2 so as to be slidable in the axial direction.

A 1st-2nd speed shift fork 5 is slidably supported on the fixed fork shaft 2, and a fork portion 5a of the shift fork 5 is engaged with a 1st-2nd speed sleeve 6.

A first locking mechanism L° is provided between the base of the 1-2 shift fork 50 and the fixed fork shaft 2 for locking the shift fork 5 in the 1st and 2nd speed positions and the neutral position with moderation.

is provided. This first locking mechanism E1 includes a locking ball 8 in a locking hole 7 formed in the base of the 1st-2nd speed fork 50, and a locking ball 8 directed toward the fixed fork shaft 2. - The blade fixed fork shaft 2 has three notches 10C, 10b and 10C selectively engaged with the locking ball 8, and - The dual shift fork 5 is adapted to be locked in the first gear, second gear, or neutral position with moderation.

A 3-4 shift fork 11 and a 5-speed shift fork 12 are slidably supported on the movable fork shaft 3. The fork portion 111Z of the 3-4 shift fork 11 is engaged with the 3-4 speed sleeve 13, and the fork portion 12a of the 5-speed shift fork 12 is engaged with the 5-speed sleeve 14. A second locking mechanism L'2 is provided between the base end of the 3-4 shift fork 110 and the fixed fork shaft 2 for locking the shift fork 11 in the 3rd and 4th gear positions and the neutral position with moderation.
This second LF station L2 is also connected to the tenth station LF station L2.
It has the same structure as the locking mechanism E, and the locking ball 16 accommodated in the locking hole 15 is elastically pushed toward the fixed fork shaft 2 by the elastic force of the compression spring 11, and are the three notches 1 that engage with the locking ball 16.
8α, 18b and 18C are formed. and 3-4
The speed shift fork 11 is adapted to be locked in the third speed, fourth speed, or neutral position with moderation.

Further, the shift fork 12 for the fifth speed has a structure that extends over the fixed and movable fork shafts 2 and 3.
A third locking mechanism E3 is provided for locking the gear at the fifth speed position and the neutral position with moderation. That is, at the base of the 5th speed shift fork 120, there is a locking hole 19 that is opened at both ends facing the fixed and movable fork shafts 2 and 3.
is drilled, and two locking balls 20 are installed in this locking hole 19.
21 is movably housed, a compression spring 22 is compressed between these locking balls 20, 21, and a locking pin 23 is housed. The elastic force of the compression spring 22 springs the two locking balls 20 and 21 toward the fixed and movable fork shafts 2 and 3, and also causes the locking pin 2
3 restricts the two locking balls 20 and 21 from retreating. The fixed and movable fork shafts 2 and 3 have locking balls 20 when the 5th speed shift fork 12 is in the neutral position.
Notches 24 and 25 are formed on the fixed fork shaft 2 to lock the locking balls 21 and 21 respectively, and when the 5th speed shift fork 12 is shifted to the 5th speed position, the locking balls 2
Another notch 26 is formed to engage with the fifth gear shift fork 12 so that the fifth gear shift fork 12 can be properly locked in the neutral position and the fifth gear position.

Further, a stopper ring 27 is fixed to the movable fork shaft 3, and this stopper ring 27 engages with the 5th speed shift fork 120 step portion to restrict the movement of the shift fork 12. That is, when the movable fork shaft 3 slides to the right, the soft fork 12 also moves together, and when the movable fork shaft 3 slides to the left, the shift fork 12 does not move.

An operating member 28 of a reverse gear operating mechanism H is fixed to the movable fork shaft 3. As shown in FIG. 3, the end of the arm body 28a extending integrally from the operating member 28 is formed in a U-shape, and is slidably engaged with the fixed fork shaft 2 to stop the rotation of the movable fork shaft 3. It is working.

As shown in FIGS. 3 and 4, an engaging pin 29 is integrally provided on the boss portion of the operating member 28, and this engaging pin 29 is
A reverse shift fork 310 is pivotally connected to a wall 1cL integral with the mission case 1 with a pin 30, and is engaged with a claw-shaped through hole 32 formed at the base of the reverse shift fork 310. The fork pawl 31α at the tip of the reverse shift fork 31 holds the reverse idle gear 33, and when the movable fork shaft 3 slides to the right (second fixed position) in FIG. By swinging, the reverse idle gear 33 is shifted to enter the reverse gear stage.

Operating arms 51) and 1 are connected from the boss of the reverse operation member 28 integrated with the 1st-2nd speed shift fork 5, 3-4 shift fork 11 and the movable fork shaft 3, respectively.
1b and 28b (Fig. 2) extend integrally, and the engaging recesses 5 of the operating arms 5b, 11b and 28b
The free ends forming C, 11, C and 28C are the first and second
As shown in the figure, the collective recesses 5C, 211C, and 28C, which are gathered below one side of the movable fork shaft 3, are aligned in a line in a direction orthogonal to the shift direction. A shift piece 45f2 of a shift operation device C, which will be described later, is selectively engaged in the engagement recesses 5C, 11C and 28c, and the shift fork 5 for 1-2 gears, the shift fork 11 for 3-4 gears and the reverse gear The operating member 28 can be selectively shifted.

In FIG. 2, when the 1st-2nd speed shift fork 5 is shifted to the right on the fixed fork shaft 2 from the neutral position (not shown in FIG. 2), the 1st-2nd speed sleeve 6 is also shifted in the same direction, When the speed gear train is engaged and the 1st-2nd gear shift fork 5 is shifted to the left, the 1st-2nd gear sleeve 6 is also shifted in the same direction, and the 2nd gear gear train is engaged. In this case, the shift fork 5 is properly locked in the first or second speed position by the first locking mechanism g1.

Next, when the 3-4 gear shift fork 11 is moved to the right on the movable fork shaft 3 from the neutral position shown in FIG. 2, the 3-4 gear sleeve 13 is also shifted in the same direction.
When the 3rd speed gear train is engaged and the shift fork 11 is shifted to the left, the 3rd-4th speed sleeve 13 is also shifted in the same direction and the 4th speed gear train is engaged. In this case, even if the shift fork 11 is shifted left or right, the movable fork shaft 3 is locked by the third locking mechanism L'3 and will not move.
is appropriately locked in the third or fourth speed position by the second locking mechanism p2.

When the movable fork shaft 3 is slid from the neutral position to the right in FIG. It shifts to the 5th gear position and engages the 5th gear train. In this case, the locking ball 21 of the third locking mechanism E3 is disengaged from the notch 24 of the fixed fork shaft 2 and engaged with another notch 26. Next, when the movable fork shaft 3 is slid to the left from the neutral position shown in FIG.
When the locking ball 2o of the locking mechanism E3 engages with the notch 24, it is locked to the fixed fork shaft 2, and while it is stopped there, only the movable fork shaft 3 slides further to the left and is fixed there. The reverse operation member 28 also moves in the same direction, swinging the reverse shift fork 31 engaged with it as shown in FIG. 4, and shifting the reverse idle gear 33 to the left in FIG. This allows the reverse gear train to be inserted.

In Fig. 2, a transmission case 1 (UUK) is supported so that a shift iron 40 that is linked to a change lever (not shown) can be slid (shifted) in the axial direction and rotated (sent). ) The iron 40 is locked at each shift position by a locking mechanism E provided between the iron 40 and the transmission case 1.

The shift iron 40, the 1st-2nd speed, 3rd-4th speed soft fork 5, 11, and the reverse operation member 28 are connected by a shift operation device C, which will be described later.

Next, the structure of the speed change operation device C will be explained with reference to FIGS. 2 and 5 to 8.

A mounting base 41 having a rectangular cross-section is fixed to the inner wall of the mission case 1, and a soft shaft 43 is bridge-supported between the mounting base 41 and a support wall 42 integral with the mission case 1. An interlock plate 44 having a U-shaped cross section is rotatably supported on the shaft 43. In addition, within the ink closet 44, a cylindrical shift member 45 is fitted and supported on the shift shaft 43 so as to be slidable left and right as shown by arrows in FIG. A shift piece 45a is integrally provided on the soft member 45, and this shift piece 45a is connected to the interlock plate 44.
It protrudes out of the punto 44 through a long hole, that is, a shift hole 46 bored in the hole, and can rotate together with the interlock plate 44, and as mentioned above, the shift hole 46 for 1st-2nd speed and 3rd-4th speed can be rotated. Engagement recesses sc, 11c and 2B of forks 5, 11 and reverse operation member 28, ? selectively engaged with.

As clearly shown in FIG. 5, a pair of hook-shaped interlock pieces 47 and 47 are integrally formed from the interlock plate 44 so as to sandwich the shift piece 45a, and the shift piece 45. lZ is the four engaging parts 50.
11C or 28c.

As shown in FIGS. 5 and 6, the middle part of a bell crank-shaped shift lever 48 is rotatably supported on the mounting base 41 with a pivot shaft 49.
An engagement pin 5o is protruded from one end of the shift member 48, and the engagement pin 50 is inserted into the engagement recess 5 formed on one side of the shift member 45.
1 is engaged.

Further, a connecting male portion 52 is formed at the other end of the shift lever 48, and this connecting male portion 52 is connected to a connecting female portion 53 formed on a change piece 54 fixed to the inner end of the shift rod 40.
is mated to. The connecting male part 52 and the connecting female part 53 form a first joint part, and the shift rod 4
o is shifted in the axial direction (direction of arrow (A) in Figure 2.5), the shift lever 48 can be rotated around the pivot shaft 49 to shift the shift member 45, and the shift rod 40 is selectively rotated (in the direction of arrow (b) in Figure 2g5), only the change piece 54 rotates and its rotational force is not transmitted to the shift lever 48.

The interlock plate 44 has a select shaft 55
is welded, and one end of the select shaft 55 passes through an arcuate hole 56 drilled in the mounting base 41 and protrudes outside the mounting base 41, and a connecting male portion 57 is formed there. This male connecting portion 57 is engaged with a female connecting portion 58 formed on a change piece 54 fixed to the tip of the shifter 4o. Therefore, the connecting male portion 57
and the connecting female part 58 form a second joint J2, and when the shift rod 4o is rotated (in the direction of the arrow in FIGS. 2 and 5), that is, selected, the joint J2 transmits this operation to the select shaft 55. The rotation of the interlock plate 44 around the shift shaft 43 can be controlled. In addition, when the shift rod 4o is shifted in the axial direction (in the direction of the arrow in FIGS. 2 and 5), the second joint 12 is connected to the select shaft 55.
I can't tell you.

Separated from the select shaft 55, the mounting base 41
A bearing portion 6oα of a select moderation arm 6o is rotatably supported on a support shaft portion 59 integrally formed with the select moderation arm 60, and a fork portion 60b at the tip of this select moderation arm 60 is engaged with the select shaft 55. ing. A return spring 61 made of a torsion spring is wound around the bearing portion 60d of the select moderation arm 60, and as shown in FIG. 6, one free end of the return spring 61 is erected on the mounting base 41. The upper edge of the stopper plate 62 and the upper edge of the select moderation arm 60 are engaged, and the other free end of the stopper plate 62 is engaged with the upper edge of the select moderation arm 60.
2 and the lower edge of the select moderation arm 60. The select moderation arm 60 is held at the neutral position by the elastic force of the return spring 61.

As clearly shown in FIG. 2, a moderation mechanism 63 is provided between the mounting base 41 and the select moderation arm 60. Next, the structure of this mechanism 63 will be explained. A spring cylinder 64 is fixed in the middle of the select moderation arm 60.
4 includes a moderation spring 65 made of a compression spring and a moderation element 6.
The tip of this moderator 66 is formed into a conical head shape, and is biased by the elastic force of the moderation spring 65 so as to protrude outside from the spring cylinder 64. On the other hand, a moderation cam surface 67 is formed on the inner surface of the stroke control plate 62, facing the tip of the moderation element 66.
7, as shown in FIG. 9, a trough a and continuous low and high crests C are formed on both sides of the trough a. As will be detailed later, when the seven-knot moderation arm 60 is selected from the 3rd-4th speed position to the -2nd speed position, the moderation element 66 moves from the trough a to the low peak against the spring force of the moderation spring 65. The select moderation arm 60 is moved from the 3rd-4th gear position to the 5th gear position.
When the speed-reverse position is selected, the moderator 66 moves from the trough a to the high peak C against the spring force of the moderation spring 65, so that the selection is performed with a relatively high resistance force. It has become.

In this embodiment, as shown in FIG. 7, the mounting base 41 is provided with an erroneous operation prevention device 68 that prevents the gear from moving directly backward from 5th gear. However, this is not the gist of the present invention. Therefore, detailed explanation thereof will be omitted.

Next, the operation of the speed change operating device WC of the present invention will be explained with reference to FIGS. 2.5, 6, and 8.9. FIG. 8 (A1)
In the state shown in FIG. 9 (A2), the interlock plate 44 and the select moderation arm 60 are connected to the return spring 6.
The shift piece 45a is in the neutral position with an elastic force of 1, and the shift piece 45a is in the engagement recess 11 of the 3rd-4th speed shift fork 11. ? It is located in the corresponding position. Therefore, if the shift rod 4o is controlled to slide in the axial direction, that is, to be shifted, the shift lever 48 is controlled to rotate about the pivot shaft 49 via the first joint J1, and the shift member 45 is controlled to rotate around the pivot shaft 49.
The shift piece 45a integrated with the shift piece 45a is shifted left and right along the shift hole 46, and the 3-4 speed fork 11 connected thereto is controlled to shift left and right on the movable fork shaft 3. , the 3-4 sleeve 13 (FIG. 2) is selectively shifted to 3rd or 4th gear. In this case, the movable fork shaft 3 is the third
It is fixed to the fixed fork shaft 2 via the locking mechanism L'3 and does not move.

Next, when the shift rod 4o is controlled to rotate to the left in FIGS. 5 and 8 and selected to the 1st-2nd speed position, the rotation of the shift rod 4o is transmitted to the select shaft 55 via the second joint J2. , this select shaft 55
is pressed down to swing the interlock plate 44 downward around the shift shaft 43 to select the V-toe 44 to the 1st-2nd speed position as shown in FIG. 8 (B1), and shift piece 45Cl is held in a position where it can be engaged with the engagement recess 5C of the 1st-2nd speed shift fork 5. In this case, by pressing down the select shaft 55, the select moderation arm 60 resists the spring force of the return spring 61 and moves the support shaft portion 5
9 rotations downward in Figures 5 and 8 (A)),
At that time, the moderator 66 rides on the low peak of the moderating cam surface 67, as shown in No. 912j (132), and hits the driver]
- Provides a sense of selection moderation at the 2nd gear select position, and the ink clock plate 44 is held at the select position with high precision.When the 1st and 2nd gear positions are selected as shown in FIG. 8 (B1), When the shift rod 40 is controlled to shift back and forth as described above, the shift member 45 is shifted left and right as described above, and the 1-2 shift fork 5 (FIG. 2) is shifted on the fixed fork shift fork 2. The 1-2 sleeve 6 can be shifted to 1st speed or 2nd speed.

Next, when the shift rod 40 is controlled to rotate clockwise in FIGS. 5 and 8 to select the 5th speed-reverse position, this rotation causes the select shaft 55 to move through the second joint J2 (see FIG. 8). Push up as shown in C'1), thereby moving the interlock V-toe 44 onto the shift shaft 4.
3, selects the plate 44 to the 5th speed-reverse position, and holds the shift piece 45α in a position where it can engage with the engagement recess 28C of the reverse operation member 28.

In this case, by pushing the select shaft 55 upward, the select moderation arm 60 is moved as shown in FIG.
swings upward around the support shaft 59 against the spring force of the return spring 61, and at this time the moderation element 66 rides on the high peak C of the moderation cam surface 67 as shown in FIG. 9 (C2). The interlock plate 44 is held at the select position with high precision, giving the driver a feeling of select moderation in the 5th speed-reverse position, which has greater resistance than the 1st-2nd speed select position. As shown in FIG. 8 (C1), when the 5th speed-reverse position is selected, the shift rod 4
0 is shifted back and forth, the shift member 45 is shifted left and right as described above, and the reverse operation member 28 is shifted left and right together with the movable fork shaft 3 to shift the shift fork 12 for 5th speed as described above. Shift to 5th gear position,
Alternatively, it would be possible to control the swinging of the reverse shift fork 31 to the reverse position.

As described above, according to the present invention, the select shaft is fixed to one side of the interlock plate for select which is rotatably provided on the base, and the select shaft is rotatably attached to the mounting base. The free end of the supported select moderation arm is connected, and a return spring is provided between the select moderation arm and the mounting base to hold the select moderation arm in a neutral position, and a return spring is provided between the mounting base and the select moderation arm. Since a moderation mechanism is provided to allow the arm to be controlled at each select position, when the interlock plate is rotated to each select position, the select moderation arm is rotated to each select position with moderation, and the driver Moreover, the select moderation arm can accurately position the interlock plate at each select position to increase the accuracy of each select position.

In addition, the select moderation arm, return spring, and moderation mechanism can be assembled together without protruding onto the mounting base, and can be easily assembled and made compact as a whole.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the device of the present invention, Fig. 1 is a side view of a transmission equipped with the device of the present invention, Fig. 2 is a developed sectional view taken along the line ■-■ in Fig. The figure is Figure 2 JII-ItI
4 is a view taken along the line V-IV, FIG. 5 is a partial perspective view of the device of the present invention, and FIG. 6 is a perspective view of another portion of the device of the invention, FIG. 7 is a further partial perspective view of the device of the present invention, and FIG. 8 (A1). (B1) and (C'i) are side views showing the operation of the device of the present invention, and FIG. 9 (A2), (B2) and (C2) are respectively shown in FIG.
1) K $-Kel A 2-A2. It is a partial sectional view along the Bz-IJ2 and C2-C2 lines. 40...Shift rod, 41...Mounting base, 43
...Shift shaft, 44...Interlock plate, 45...Shift member, 45α...Shift piece, 55...Select shaft, 60...Select moderation arm 61...Return spring, 63 ... Moderation Organization Patent Applicant Honda Motor Co., Ltd. Procedural Amendment (Radio) Commissioner of the Japan Patent Office 1, Indication of the case j 1982 Patent Application No. 45103 3, Person making the amendment Relationship to the 3 cases Patent application Person Name (532) Honda Motor Co., Ltd. 4th generation
Person 10545 Date of amendment order Procedural amendment (voluntary) 1980+1 - May 21, Display of case 1981 Relationship to patent application No. 45103 Name of patent applicant (532) Honda Motor Co., Ltd. Agent 〒105 - Contents of amendment subject to amendment
...1, Mei A+ book, page 7, line 8,
゛. ...Delete the text "5th gear position and". 82゜Details@Page 8, Lines 7 to 10, ...[Furthermore...formed]...Delete. 3. Delete "and 5th gear position" from page 8, line 1' of the specification. 4. Page 12, line 12 of the specification, ・ ``Latching ball 21''......''
``Latching ball 20''... Corrected. 5.Details @Page 12, Lines 13 to 14...Delete the words ``Etc....engaged''... 6. In the third line of page 16 of the specification, the phrase ``at the inner end of'' is corrected to ``at the tip of''. 7. In the specification, page 17, line 12, it says "arrow (b) direction"... It should be corrected to "arrow (a) direction"... , Figure 2 of the drawing is corrected as shown in the attached sheet. that's all

Claims (1)

[Claims] The mounting base (41) is fixed to the mission case (1).
) supports a shift shaft (43), and slidably supports a shift member (45) having a shift piece (45a) integrally provided on the shift shaft (43), and is integrally oriented with the shift piece (45α). The shift member (45) and the interlock plate (44) are connected to a shift rond (40), and the shift rond (40) is rotatably supported.
) by the axial sliding operation of the shift member (45).
In a vehicle gear shift operating device, the gear shifting operation device for a vehicle is configured to perform shift control on the shift lever and selectively control the interlock play (44) by rotating the shift rond (40),
A select shaft (55) is fixed to the negative side of the ink lock plate (44), and this select shaft (S
The free end of a select moderation arm (60) swingably supported on the mounting base (41) is connected to S), and the select moderation arm (60) and the mounting base (41) are connected to each other.
A return spring (61) for holding the select moderation arm (60) in a neutral position is provided between the mounting base (41) and the select moderation arm (60). A selection mechanism in a vehicle speed change operation device, which is provided with a moderation mechanism (63) for providing moderation at each select position.