JPH041219B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Fields/Related Applications This invention relates to an automatic transmission in which a mechanical transmission is combined with a mechanical clutch, a hydraulic clutch, etc., a fluid coupling, and a hydraulic clutch. The present invention relates to gear change lever units used in automatic transmissions that combine any of the risk/torque converters, finger control transmissions, etc.

BACKGROUND TECHNOLOGY At present, floor type shift mechanisms have been widely used as speed change operating mechanisms for automatic transmissions that are combined with, for example, fluid torque converters.

The floor type shift mechanism is a rod or
The torque is transferred to the shift lever via the cable.
Since the converter is structured to operate, there is a limit to the reduction in operating force and operating stroke.

Objectives and Problems of the Invention The objects and problems of the present invention are to improve operability, that is, to reduce the operating force, reduce the operating stroke, and improve the operating feeling, and also to improve the operability according to the driver's will in addition to automatic gear shifting. It also allows for shifting,
Another object of the present invention is to provide a floor type gear change lever unit that facilitates switching between automatic gear shifting and gear shifting according to the will of the driver, and is applicable to various automatic transmissions.

Summary of the structural invention related to the object/problem: Contents of the claimed invention In order to solve this problem, the gear change lever unit of the present invention has a gear change lever unit whose axes are parallel to each other at the base of the gear change lever box. ,
and a pair of shift shafts arranged at an appropriate interval, and a pair of shift shafts arranged above the shift shafts and in a direction parallel to the shift shafts, and supported so as to be able to reciprocate and slide on the shift shafts. a gear change lever that passes through the lever shift gate of the box, extends outside the box and is swingably supported on the select shaft, and the select shaft. Located in the box in relation to the gear change lever that swings around the shaft, the lever shift lever
A select cam plate with multiple engagement positions that determines the lever shift position within the swing range of the gear change lever regulated by a gate, and a select cam plate that can reciprocate in the axial direction of the gear change lever. a lever select lock pin that is supported by the select cam plate and whose tip can be selectively engaged with a plurality of engagement positions of the select cam plate; and the engagement position of the select cam plate that is selectively engaged; The lever select lock spring, which holds the lever select lock pin in place, and the selectively engaged select cam plate engage the lever select lock pin.
The lever release mechanism that removes the lock pin and the gear change mechanism around the select shaft regulated by the lever shift gate.
In relation to the swing range of the lever, it is located within its box and its gear on its shift shaft.
A lever hold cam plate with multiple meshing positions that regulates the reciprocating sliding of the change lever, and its gear change that is arranged on the gear change lever and regulated by the lever shift gate.・In the swing range of the lever,
Around the select shaft, there is a lever hold guide pin that selectively engages with multiple engagement positions of the lever hold cam plate in accordance with the rocking of the gear change lever, and An up shift switch that opens and closes according to the reciprocating movement of the gear change lever on the shaft, and
A down shift switch opens and closes as the gear change lever slides back and forth on the shaft, and a select switch opens and closes as the gear change lever swings around the select shaft. When the lever hold guide pin is in the hold engagement position of the lever hold cam plate, the gear change lever has manual up shift and manual down shift. In addition to the transmission's automatic gear shifting, it also allows the driver to shift gears at his/her will.

Description of Specific Examples Preferred specific examples of the gear change lever unit according to the present invention will be described below with reference to the drawings.

Figures 1 to 4 show an automatic transmission (not shown) installed in a car and combined with a hydraulic torque converter.
10 shows a tenth embodiment of the gear change lever unit of the present invention applied to.

The gear change lever unit 10
The gear change lever box 11 is manufactured into a floor type that is adapted to be placed on the floor adjacent to the driver's seat in the automobile.
A pair of shift shafts 13, 13 are arranged on the base 12 of the box 11 with their axes parallel to each other and spaced apart from each other at an appropriate distance in the front-rear direction, and the shift shafts 13 are arranged to be reciprocated in the left-right direction with respect to the base 12. , an up shift and down shift switching frame 14 supported on the shift shafts 13, 13 so as to be slidable back and forth;
Above the shift shafts 13, 13 and in a direction parallel to the shift shafts 13, 13, the switching frame 14
The select shaft 15 is located at
A gear change lever 16 swingably supported on the shaft 15 and a select cam plate 17 for the gear change lever 16
And for that gear change lever 16,
A lever that selectively engages the tip of the select cam plate 17 at multiple engagement positions.
a select lock pin 18, a lever select lock spring 19 for the lever select lock pin 18, and a lever select lock spring 19 for the lever select lock pin 18;
a lever release mechanism 20 for the select lock pin 18; a lever hold cam plate 21 for the gear change lever 16; Hold cam plate 21
A lever hold guide pin 22 that can be selectively engaged with a plurality of engagement positions, an up shift switch 23, and a down shift switch.
switch 24, select switch 25, its base 12 and its switching frame 14
a pair of return springs 26, 26 disposed between the gear change lever 16 and
and its select cam plate, and the reverse (R), neutral (N), drive (D), and hold (HOLD) states of its automatic transmission. Indicator lamp 28,2 that displays
9, 30, and 31. Of course, the indicator lamps 28, 29, 30, 31 are adjacent to the lever shift gate 32, and indicate the reverse (R) and neutral (N) display glass 33 disposed in the gear change lever box 11. ), drive (D), and hold (HOLD) positions.

The gear change lever box 11
are drive position (D), neutral position (N),
It is possible to set lever/shift positions such as reverse position (R) and hold position (HOLD), and
It has a lever shift gate 32 formed in a T-shaped opening that allows manual up shift position (UP) and manual down shift position (DOWN) to be set in its hold position (HOLD). , while regulating the swinging of the gear change lever 16 with the lever shift gate 32, allowing the gear change lever 16 to easily switch between automatic gear shifting and gear shifting according to the driver's will; It enables automatic gear shifting and gear shifting according to the driver's will.

The lever shift gate 32, as understood from FIG. The gear that is set by the lever 16
It corresponds to the longitudinal swing range for the change lever 16, and also changes the manual up shift position (UP) and manual down shift position (DOWN) in its hold position (HOLD). - It also corresponds to the reciprocating range in the left and right direction for the gear change lever 16 that is set on the change lever 16.

As understood from FIGS. 2 and 4, the base 12 is cut from a steel plate and has a pair of side flanges 34, 35 bent on both sides on the upper surface, and is capable of supporting the shift shafts 13, 13. ing.

The shift shafts 13, 13 have their axes perpendicular to the longitudinal direction of the automobile, parallel to each other, and are spaced apart from each other at an appropriate distance, and are positioned above the base 12 at an appropriate distance. and attach both ends to its side flanges 34,3.
It is fixed between 5 and 5. That is, the shift shafts 13, 13 have both ends connected to the side flanges 3 at the front and rear of the base 12.
4, 35 and supported by its base 12.

The up-shift and down-shift switching frame 14 includes a pair of bearing pipes 3, as can be seen from FIGS.
6, 37 and a pair of side plates 38, 39 to form a rectangular frame. In particular, the shaft receiving pipes 36, 37 are connected to the shift shaft 13,
The side plates 38, 39 are dimensioned to a predetermined length shorter than the length of 13;
Since the distance between the shafts of the shift shafts 13 and 13 is pre-measured to a length that allows the bearing pipes 36 and 37 to be connected, the bearing pipe 3
6, 37 and its switching frame 14 framed from side plates 38, 39
Fit the bearing pipes 36, 37 to the shift shafts 13, 13, and
It is supported by shafts 13, 13 so as to be able to reciprocate and slide.

Further, in such a state that the switching frame 14 is supported by the shift shafts 13, 13 so as to be able to reciprocate and slide, the side plates 38, 39 are attached to the corresponding side flanges 34, 35 of the base 12. face to face.

Furthermore, the switching frame 14 is
The springs are attached to the side plates 38 and 39.
Seats 40 and 41 are respectively formed such that one end of a corresponding return spring 26 and 26 can be received by the spring seats 40 and 41, respectively.

The select shaft 15 has the second and fourth
As can be seen from the figure, the side of the stitching frame 14 is arranged at an appropriate distance above the shift shafts 13, 13 with an axis parallel to the shift shafts 13, 13. It is supported between plates 38 and 39.
As a result, the select shaft 15 is arranged above the shift shafts 13, 13 and in a direction parallel to the shift shafts 13, 13, and is connected to the shift shafts via the switching frame 14. 13, 13 so as to be able to slide back and forth.

The gear change lever 16 passes through the lever shift gate 32 of the gear change lever box 11 and extends outside of the box 11 to open the select shaft 15.
is swingably supported.

As understood from FIGS. 1 and 4, the gear change lever 16 includes a hollow rod 42 cut to a predetermined length from a pipe, and a bearing pipe 43 welded to the base of the rod 42. It consists of a knob 44 that is fitted and screwed onto the tip of the rod 42, and the bearing pipe 4
3 is fitted onto the select shaft 15 and is swingably supported by the select shaft 15.

In this way, the supported gear change lever 16 can swing around the select shaft 15 in the longitudinal direction of the automobile, and the gear change lever 16 can swing around the select shaft 15 in the longitudinal direction of the automobile. It becomes possible to reciprocate on the shafts 13, 13. Of course, the range of swinging of the gear change lever 16 in the longitudinal direction is determined by the select cam.
Plate 17 and lever shift gate 32
The reciprocating range of the gear change lever 16 in the left and right direction is limited by the lever hold cam plate 21 and the lever shift lever.
It is regulated by gate 32.

Furthermore, the gear change lever 16 is
A sliding cover plate 45 is attached to the lever shift gate 32, and the gear change lever 16 is attached to the shift shaft 13,
When reciprocated on 13 and swung around its select shaft 15, its cover
The lever shift gate 32 with the plate 45
is always blocked.

The select cam plate 17 is arranged in the box 11 in association with the gear change lever 16 which is pivoted about the select shaft 15.

The select cam plate 17 controls the up shift and down shift switching as seen in FIGS. 1 and 4.
The side plates 38, 39 of the switching frame 14 are erected on the frame 14.
It is integrally formed on one side. In particular, the select cam plate 17 has a plate surface that is connected to the shift shaft 13, 13 and the select cam plate.
perpendicular to the axis of the shaft 15, and around the select shaft 15.
It faces the swinging range of the change lever 16 in the front and back direction.

The select cam plate 17 arranged in this way has the lever shift gate 3
The gear change lever 16 regulated by 2
A plurality of engagement positions 47, 48, which determine the lever shift position in the longitudinal swing range of the
49 and 50 are provided.

The meshing positions 47, 48, 49, 50 are:
Consisting of stepped surfaces of the cam hole 46 punched with a press machine, the stepped surfaces 47, 48, 49,
50 determines the reverse (R), neutral (N), drive (D), and hold (HOLD) positions of the gear change lever 16.

The lever select lock pin 18 is
The hollow rod 4 of the gear change lever 16
A pair of slots 5 drilled at predetermined positions of 2.
1 and 52, and is supported by its lever release mechanism 20 to be able to reciprocate in the axial direction on its gear change lever 16.

Also, the lever select lock pin 1
8, the tip of the select cam plate 17
The lever is extended to fit into the cam hole 46, and the lever release mechanism 20 is operated to release the lever select lock pin 18 against the lever select lock spring 19. Push down in the axial direction of the change lever 16, and in that state, move the gear change lever 16 to the select shaft 1.
5 and then releases its lever release mechanism 20 from its operating condition, causing its lever select lock spring 19 to cause its lever select lock pin 18 to shift from its gear change position. - As the lever 16 is pushed upward in the axial direction, the tip of the lever select lock pin 18 moves to the engagement position of the cam hole 46, in other words, the stepped surfaces 47, 48, 49, 50 can be selectively engaged.

The lever select lock spring 1
9 is disposed in the hollow rod 42 of the gear change lever 16, and the lever select lock is located at the meshing positions 47, 48, 49, 50 of the select cam plate 17 which is selectively engaged with the gear change lever 16. - Holding the pin 18 through the sliding block of its lever release mechanism 20.

The lever release mechanism 20, as understood from FIG.
A plunger 55 is fitted in a plunger guide bore 54 formed in a knob 44 of the change lever 16 so as to be able to slide back and forth, a connecting rod 56 connects the slide block 53 and the plunger 55, and A release pin 58 that presses the cam surface 57 of the plunger 55;
and a return spring 59 for the pin 58.

The slide block 53 extends through and supports the lever select lock pin 18 and is under spring pressure from the lever select lock spring 19.

Also, the release pin 58 is perpendicular to the plunger guide bore 54 and the knob 44
It is fitted in a pin guide bore 60 formed in the pin guide bore 60 so as to be able to reciprocate and slide, and under normal conditions, one end protrudes from the knob 44 and the other end is always in contact with the cam surface 57 of the plunger 55. .

The return spring 59 is fitted into the pin guide bore 60 and pushes the release pin 58 through the spring seat 61 and the plunger 55 in a direction that causes one end of the release pin 58 to protrude from the knob 44 . is pressing.

The lever hold cam plate 21
The box 11 is related to the longitudinal swing range of the gear change lever 16 around the select shaft 15 regulated by the lever shift gate 32 and the select cam plate 17. located within.

The lever hold cam plate 21
As can be understood from Fig. 2, its base 1
2, in other words, it uses a part of the base 12, and the select shaft 15 is related to the longitudinal swing range of the gear change lever 16 around the select shaft 15.・This is the part of the base 12 directly below the shaft 15.

As such, the lever hold cam plate 21, which is a portion of the base 12 directly below the select shaft 15, has a cam plate 21 which is a portion of the base 12 directly below the select shaft 15. The reciprocating sliding movement of the gear change lever 16 on the shift shaft 13, 13 through the stitching frame 14 is related to the longitudinal swing range of the gear change lever 16 around it. A plurality of regulating engagement positions 63 and 64 are provided.

The meshing positions 63 and 64 are formed by stepped surfaces of the cam hole 62 punched with a press machine, and the stepped surfaces 63 and 64 are used for the shift lock (SHIFT) of the gear change lever 16.
LOCK) and HOLD position.

The lever hold guide pin 22 is
Bearing pipe 4 of the gear change lever 16
3, and extend the tip to the lever hold cam plate 21, that is, the base 12, and insert the tip into the cam hole 62.
, and is selectively engaged with stepped surfaces 63 and 64 formed in the cam hole 62 in accordance with the longitudinal swing of the gear change lever 16 around the select shaft 15. It is configured like this.

That is, the lever hold guide pin 22 extends into the cam hole 62 of the lever hold cam plate 21, and the swing of the gear change lever 16 regulated by the lever shift gate 32 is extended. In the range of motion, the lever-hold cam plate is selectively moved to a plurality of engagement positions, i.e., stepped surfaces 63, 64, in response to the swinging of the gear change lever 16 about the select shaft 15. and restricts the reciprocating sliding of the gear change lever 16 of the shift shaft 13, 13 in relation to the swinging of the gear change lever 16 about the select shaft 15. .

The up shift switch 23 faces the side flange 34 of the base 12 and the side plate 38 of the up shift and down shift switching frame 14.
In other words, in response to the reciprocating movement of the gear change lever 16 on the shift shafts 13, 13 in the left and right direction, the gear
Accompanied by the change lever 16, the shift
It is opened and closed in accordance with the reciprocating movement of the switching frame 14 on the shafts 13, 13 in the left and right direction. Of course, that up shift switch 23
is electrically connected to the electrical circuit of an up-shift solenoid valve (not shown) located in the hydraulic control circuit of the automatic transmission combined with the hydraulic torque converter.

The down shift switch 24 is symmetrical to the up shift switch 23 and facing the side flange 35 of the base 12, the up shift and down shift switching frame 14 The shift shaft 1 is arranged on the side plate 39 of the
In other words, according to the reciprocating movement of the gear change lever 16 on the gear change lever 16 in the left and right direction,
It is opened and closed in response to the reciprocating movement of the switching frame 14 on the shift shafts 13, 13 in the left and right direction in conjunction with the gear change lever 16. Of course, the down shift switch 24 is the same as the up shift switch 23.
As in the case of the automatic transmission, there is a
It is electrically connected to an electrical circuit of a shift solenoid valve (not shown).

The select switch 25 is a non-contact type using a Hall element, and the gear change lever 16, which is swung around the select shaft 15, is reverse (R), neutral (N), and drive. (D), and HOLD
As shown in FIG. is fixed. Of course, the select switch 25 is electrically connected to the electrical circuit of a shift solenoid valve (not shown) located in the hydraulically controlled rotation of the automatic transmission associated with the hydraulic torque converter. , its shift solenoid valve opens and closes.

The pair of return springs 26, 26 are comprised of coil springs, and are disposed between the base 12 and the switching frame 14, as seen in FIG. The switching plate 14, which was slid back and forth in the left and right direction, is returned to the center of the base 12, that is, the lever
At the same time as the gear change lever 16 is returned to a position that allows the hold guide pin 22 to engage the stepped surface 63 of the lever hold cam plate 21, the up shift switch 23 is closed. and closes down shift switch 24.

The return springs 26, 26 are attached to the spring seats 4 formed on the side plates 38, 39 of the switching frame 14.
0 and 41, and the other end is supported by spring guide holders 65 and 66 fixed to the side flanges 34 and 35 of the base 12, thereby connecting the base 12 and the switching frame 14. The switching frame 14 is placed symmetrically between the bases 12 and 12 so that the switching frame 14 is returned to the center of the base 12.

The lever locking mechanism 27 is for locking the gear change lever 16 against the select cam plate 17, and as can be seen from FIG. A nipple welded to the hollow rod 42 of the gear change lever 16, a ball 68 fitted into the nipple 67 so as to be removable, and a ball 68 fitted into the nipple 67 and connected to the select cam. plate 17
The gear change lever 16 is composed of a coil spring 69 that presses against the gear change lever 16, and provides a selection feeling to the gear change lever 16 in conjunction with the spring pressure of the return spring 59 of the lever release mechanism 20.

The indicator lamps 28, 29, 30, 31 are attached to a bracket 70 located at a predetermined position in the gear change lever box 11, as can be seen from FIG. The lever, shift gate 32 is turned on and off in accordance with the opening/closing operation of the lever/shift gate 32.
The reverse (R), neutral (N), drive (D), and hold (HOLD) positions of the display glass 33 disposed adjacent to are shown. Of course, the indicator lamps 28, 29, 30, 31 are electrically connected to a power supply circuit (not shown) for the automatic transmission.

Next, a description will be given of the gear change operation of the automatic transmission installed in the automobile and combined with the hydraulic torque converter using the gear change lever unit 10 configured as described above. .

The automatic transmission controls the oil pump by clutch, low servo,
The hydraulic control circuit connected to the reverse servo and the regulator valve, throttle
Electrically connect solenoid coils to select switches 25 of valves, governor valves, shift valves, down shift valves (low range valves: range control valves), and their gear change lever units 10. Solenoid selector valve (solenoid control valve: equivalent to a manual valve) connected to the gear change lever unit 1
0 up shift switch 23 with a solenoid coil electrically connected to it.
Solenoid valve, down shift switch 2 of its gear change lever unit 10
4 is equipped with a down shift solenoid valve with a solenoid coil electrically connected to the lever release mechanism 20. Now, in the lever release mechanism 20, press the release pin 58 with your finger against the return spring 59. The slide block 53 is pushed down against the lever select lock spring 19 via its plunge 55 and connecting rod 56.

In that way, the slide block 53
As the gear change lever 16 is pushed downward into the hollow rod 42, the lever select lock pin 18 also slides into the slots 51, 52 formed in the hollow rod 42.
is guided by the gear change lever 16.
The lever select lock pin 18 corresponds to the neutral position (N) shown on the display glass 33 of the gear change lever box 11, as shown in FIG. As shown in FIG. Since the cam hole 62 of the lever hold cam plate 21 is engaged with the stepped surface 63, the gear change
The lever 16 is only allowed to swing back and forth about its select shaft 15.

Therefore, with the release pin 58 pressed, the gear change lever 16 is swung rearward around the select shaft 15;
The gear change lever 16 is placed in the drive position (D) of the display glass 33, and there,
Release your finger from the release pin 58.

As such, when the finger is released from its release pin 58, its lever select lock spring 19 locks the lever select lock.
The lock pin 18 is guided by the slots 51 and 52 formed in the hollow rod 42 of the gear change lever 16 and is guided by the slide block 53 in the axial direction of the gear change lever 16. moved upwards in
The lever select lock pin 18 corresponds to the drive position (D) indicated on the display glass 33 and is located in the cam hole 46 of the select cam plate 17 as shown in FIG.
It is engaged with the stepped surface 49 which is the drive position (D).

Just like that, that gear change lever 1
6 is locked in its drive position (D), its select switch 25 is switched, and its hydraulic control circuit automatically shifts its transmission according to the amount of accelerator pedal depression and vehicle speed. .

Next, push the release pin 58 with your finger against the return spring 59 again, and move the slide block 53 to the lever select lock spring 19 via the plunger 55 and connecting rod 56. Press down against the

As such, the slide block 53 connects to the hollow rod 42 of the gear change lever 16.
As the gear change lever 16 is pushed down again, the lever select lock pin 18 is again guided into its slots 51 and 52 formed in the hollow rod 42 of the gear change lever 16, and the gear - The change lever 16 is moved downward in the axial direction, and the lever select lock pin 18 is moved to the gear change position.
Corresponding to the drive position (D) displayed on the display glass 33 of the lever box 11, as shown in FIG. Attaching surface 4
9 is disengaged, and at that time, the lever
Since the hold guide pin 22 is engaged with the stepped surface 63 in the cam hole 62 of the lever hold cam plate 21,
The gear change lever 16 can swing around the select shaft 15 only in the longitudinal direction.

Therefore, with the release pin 58 pressed, the gear change lever 16 is swung rearward around the select shaft 15, and the gear change lever 16 is held by the display glass 33. to the HOLD position, at which point release pin 58 is released.

As such, when the finger is released from its release pin 58, its lever select lock spring 19 locks the lever select lock.
The lock pin 18 is guided through its slots 51 and 52 formed in the hollow rod 42 of the gear change lever 16, while the lock pin 18 slides.
Accompanied by block 53, its gear change
In the axial direction of the lever 16, the lever select lock pin 18 is moved upwardly.
corresponds to the hold position (HOLD) displayed on the display glass 33, and as shown in FIG. It is interlocked with the surface 50.

As such, that gear change lever 16
When locked in the hold position (HOLD),
The select switch 25 is switched, and at that time, the lever hold guide pin 22 is connected to the lever hold cam plate 2.
The gear change lever 1 is engaged with the stepped surface 64 in the cam hole 62 of the gear change lever 1.
6 is slidable back and forth on its shift shafts 13, 13 via its up-shift and down-shift switching frame 14, so that up-shift and down-shift of its transmission is possible. Manual operation becomes possible.

Therefore, the gear change lever 16 is shown in FIG.
If the upshift switch 23 is slid downwardly on the shift shaft 13, 13 through the upshift switch 23, the upshift switch 23 contacts the side flange 34 of the base 12 and is closed.

As such, the up shift switch 2
3 is closed, current flows through the solenoid coil of the up-shift solenoid valve, opening the up-shift solenoid valve and allowing pressure oil to flow from the oil pump to the clutch and its The transmission is manually shifted up.

In addition, the gear change lever 16 is connected to the switching frame 14 in FIG.
, the up-shift switch 23 is opened and the up-shift solenoid valve is accordingly closed, while the up-shift solenoid valve is The down shift switch 24 contacts the side flange 35 of its base 12 and is closed, causing current to flow through the solenoid coil of the down shift solenoid valve.

As such, when current flows through the downshift solenoid valve, the downshift solenoid valve opens and pressure oil flows from the oil pump to the clutch and low servo to the transmission. is manually downshifted.

Therefore, when the vehicle travels on a slope, the gear change lever 16 must be slid back and forth on the shift shafts 13, 13 via the switching frame 14 in the HOLD position. This allows the transmission to be manually shifted, allowing the vehicle to run smoothly on the slope according to the driver's will.

Also, the gear change lever 16 is swung forward around the select shaft 15, and the gear change lever box 11
If the select cam plate 17 is engaged with the step surface 47 in the cam hole 46 of the select cam plate 17 shown in FIG. - Switch 25 is toggled, operating its solenoid select valve, allowing pressure oil to flow from the oil pump to the reverse servo, shifting the transmission into reverse gear.

Gear change lever unit 10 mentioned above
Now, that lever hold cam plate 2
1 was manufactured to have a structure that also serves as its base 12, but of course it is also possible to manufacture it as an independent structure separated from the base 12.

Conveniences and Benefits of the Invention From the above, compared to the floor-type shift mechanisms that have already been proposed and used, the gear change lever unit of the present invention has the advantage that the select shaft is connected to a pair of shift shafts. disposed above and in a direction parallel to the shift shaft, supported so as to be reciprocally slidable on the shift shaft, and a gear change lever supported so as to be swingable on the select shaft;
A select cam plate that forms multiple meshing positions that determine the lever shift position within the swing range of the gear change lever, and is selectively engaged with the multiple meshing positions of the select cam plate. a lever select lock pin, a lever select lock spring for the lever select lock pin, a lever release mechanism for the lever select lock pin, and a lever select lock spring for the lever select lock pin; a lever hold cam plate forming a plurality of meshing positions for regulating the reciprocating sliding movement of the gear change lever;・A lever hold guide pin is provided that selectively engages with multiple engagement positions of the hold cam plate, and a lever hold guide pin is provided on the shift shaft in response to reciprocating sliding of the gear change lever. It is equipped with an up shift switch and a down shift switch that are opened and closed, and furthermore, a select switch that is opened and closed in response to the rocking of the gear change lever is provided around the select shaft. Therefore, in the gear change lever unit of this invention,
The operating force is reduced, the gear change lever can be shortened, the operating stroke is reduced, the operating feel is improved, and the driver's physical and mental fatigue due to gear shifting operations is reduced. The lever hold cam plate's multiple engagement positions on the shift shaft are also improved in relation to the swing range of the gear change lever around the select shaft. Shift lock position (SHIFT LOCK) and hold position (HOLD) that restrict the reciprocating sliding of the gear change lever.
Upshifts and downshifts are performed manually by operating the gear change lever, making it possible to shift gears at the driver's will in addition to automatic gearshifting. This makes it possible for cars to run smoothly on slopes, and furthermore, it can be applied to various range shift type automatic transmissions, making it extremely useful and practical for cars.

Relationship between the invention and specific examples As mentioned above, from the specific examples of this invention explained with reference to the drawings, for those who have ordinary knowledge in the technical field to which this invention pertains,
Various design modifications and changes can be easily made, and furthermore, it is possible that the content of this invention satisfies essentially the same problems and achieves the same effects as that invention. It could easily be replaced by an essentially identical embodiment of the invention.

[Brief explanation of drawings]

FIG. 1 is a side view of the gear change lever unit of the present invention, which is mounted on an automobile and applied to an automatic transmission combined with a hydraulic torque converter. 3 is a top view of the gear change lever box used in the gear change lever unit shown in FIG. 1, and FIG. 4 is a sectional view taken along line 2-2 of FIG. 2 is a sectional view taken along line 4-4 in FIG. 1. FIG. 11...Gear change lever box,
12...Base, 13,13...Shift shaft, 14...Up shift and down.
Shift switching frame, 15... Select shaft, 16... Gear change lever, 17... Select cam plate, 18...
...Lever select lock pin, 19...Lever select lock spring, 20...
Lever release mechanism, 21... Lever hold cam plate, 22... Lever hold guide pin, 23... Up shift switch, 24... Down shift switch, 2
5... Select switch, 26, 26... Return spring, 27... Lever retaining mechanism, 2
8, 29, 30, 31...display lamp, 32...
lever shift gate.

Claims (1)

[Scope of Claims] 1. A pair of shift shafts disposed on the base of a gear change lever box with their axes parallel to each other and at an appropriate interval, and above the shift shafts, and , a select shaft arranged in a direction parallel to the shift shaft and supported by the shift shaft so as to be able to reciprocate, and a lever shift gate of the box, extending outside the box. a gear change lever pivotably supported on the select shaft; A select cam plate with multiple meshing positions that determines the lever shift position within the swing range of the gear change lever regulated by the lever shift gate; It is supported so that it can reciprocate in the axial direction, and its select cam
A lever select lock pin whose tip can be selectively engaged with multiple engagement positions of the plate, and a lever select lock pin that is held in the selectively engaged engagement position of the select cam plate. a lever select lock spring that engages the lever select lock; a lever release mechanism that releases the lever select lock pin from the selectively engaged position of the select cam plate; located within the box to regulate the reciprocating sliding movement of the gear change lever on the shift shaft in relation to the restricted swing range of the gear change lever about the select shaft; A lever hold cam plate with multiple meshing positions located on that gear change lever and regulated by that lever shift gate.
The gear change around the select shaft within the swing range of the change lever.
A lever hold guide pin that can selectively engage multiple engagement positions of the lever hold cam plate according to the swinging of the lever, and a reciprocating slide of the gear change lever on the shift shaft. an up shift switch that opens and closes according to the movement of the gear change lever on the shift shaft; a down shift switch that opens and closes according to the reciprocating sliding of the gear change lever on the shift shaft; That gear
A gear change lever unit that includes a select switch that opens and closes in response to the swing of the change lever.