JPH06316227A - Manual type transmission operating device - Google Patents

Abstract

PURPOSE:To provide a manual type transmission operating device in which two-step shift and vibration are suppressed and which presents a lesser sense of stroke loss. CONSTITUTION:A manual type transmission operating device concerned comprises a change lever 4 to be coupled with inner cables 15, 16 for a select cable 5 and shift cable 6, a base bracket 2 on which the change lever 4 is mounted with possibility of tilting, and a duct fixing bracket 9 on which the ends of ducts 7, 8 of the select cable 5 and shift cable 6 are mounted. The base bracket 2 is separated from the duct fixing bracket 9, and at least either of these brackets is mounted on the car body through an insulator which is displaceable in the cable axial dirction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual transmission operating device (hereinafter simply referred to as operating device). More specifically, the present invention relates to a device for performing a select operation or a shift operation of a transmission of an automobile or the like via a control cable, and a so-called two-step operation device and an operation device in which vibration of a change lever is suppressed.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional operating device has a control cable 53 having an input end fixed to a single base bracket 52 on which a change lever 51 is pivotally supported. That is, the end of the conduit 54 of the control cable 53 is fixed to the base bracket 52, and the inner cable 55 is connected to one end of the change lever 51 via the rod 56. By tilting the change lever 51 in the extension direction of the control cable 53 or in the direction perpendicular to the extension direction, the inner cable 55 is pushed and pulled, and the operated portion of the transmission connected to the other end of the control cable 53 is operated to perform the shift operation. Alternatively, a select operation is performed.

Generally, in this type of operating device, the vibration transmitted through the control cable is the base bracket.
There is a problem that it is transmitted from 52 to the floor and the floor vibrates and an unpleasant noise is generated. Therefore, as disclosed in Japanese Utility Model Publication Nos. 57-200438, 2-56725 and 4-48352. In addition, an insulator is provided between the operating device and the floor, and the socket portion of the conduit mounting end is covered with the insulator.

[0004]

The conventional operating device has the drawbacks related to the shift operation feeling in that the change lever has a large vibration, and that it is easy to feel the two-step shift. The reason will be described below. First, the phenomenon of the two-step insertion will be described with reference to FIGS.

10 to 11 schematically show the main parts of a transmission synchronizer, FIG. 10 is a plan view thereof, and FIG. 11 is a longitudinal sectional view thereof. In FIG. 10, for ease of understanding, the tooth portions 57a, 58a, 59a of the sleeve hub 57, the synchronizer ring 58, and the gear 59, respectively, are shown.
The shifting key 60 and the key have a hang. Figure 12
Shows the change over time in the operating force of the shift knob 51.

First, as shown in FIGS. 10 to 11, a sleeve hub 57 that rotates integrally with an output shaft (not shown) at a certain rotation speed is rotated by a gear 59 that rotates at different rotation speeds.
It is moved by a shift operation toward. Along with that, the shifting key 60 also moves together with the sleeve hub 57, and the conical inner peripheral surface 58 of the synchronizer ring 58 is moved.
C is pressed against the tapered cone 61 of the gear 59 (shown in solid lines in Figures 10-11). Then, due to the frictional force between the shifting key 60, the synchronizer ring 58, and the gear 59, the rotation of the sleeve hub 57 (output shaft) and the gear 59 start to synchronize. When the sleeve hub 57 is further moved toward the gear 59, the sleeve hub 57 is disengaged from the shifting key 60 and the direct synchronizer ring is released.
It meshes with 58, and the rotation of the sleeve hub 57 and the rotation of the gear 59 are synchronized (shown by a chain double-dashed line in FIGS. 10 to 11). Further, the sleeve hub 57 moves and meshes with the gear 59, so that both
57 and 59 are mechanically connected (shown in broken lines in Figures 10-11).

That is, the synchronizer ring 58 is
It is provided for smooth engagement (synchronization) between the sleeve hub 57 and the gear 59.

Further, chamfers 57b, 58 are provided at the ends of the teeth 58a, 59a of the sleeve hub 57, the synchronizer ring 58, and the gear 59, respectively, for smooth engagement.
b and 59b are formed.

After the synchronization is completed as described above, the following impact force occurs at the time of dynamic connection. That is, (1) due to the shift operation force, the chamfer 57b of the tooth 57a of the sleeve hub 57 collides with the chamfer 59b of the tooth 59a of the gear 59 in the moving direction of the sleeve hub 57 (indicated by two-dot chain lines in FIGS. 10 to 11). Impact force occurs when shown).

(2) Since there is a difference in the number of revolutions between the sleeve hub 57 and the gear 59, the side surfaces of the teeth 57a of the sleeve hub 57 and the side surfaces of the teeth 59a of the gear 59 collide when the two mesh with each other (see FIG. The impact force is generated by 10) to 11).

[0011] These shocking load inputs are entered in "two steps"
Say. That is, in the shift operation, the first peak load is generated at the time of synchronization, and then the second peak load is generated at the time of the dynamic connection as described above. In FIG. 12,
The section A is the first peak load and the section B is the second peak load. As described above, since a two-step peak load is generated, this development is called "two-step development". In particular, during upshifting, the maximum shift operating force is smaller than during downshifting, so the catching load when entering two gears is relatively large, and it is felt that two gears are large.

In the conventional apparatus, since the outer casing is fixed to the integral structure bracket, the vibration is transmitted from the outer casing to the change lever as it is. As measures against this, Jikkou 4-48352 and Jikō 62-1
As disclosed in Japanese Patent No. 3866, a structure has been proposed in which the outer casing is received by a damper, but there is a problem that so-called stroke loss of the control cable becomes large if the effect is sufficiently exerted.

Further, since the two-stage insertion is an impact that directly hits the inner cable, a measure to put a damper at the end of the inner cable as shown in, for example, Japanese Utility Model Publication No. 63-47287 (this is transmitted to the inner cable at the same time). Although it has the effect of suppressing vibration), there is a problem that the stroke loss becomes large when trying to exert a sufficient effect.

The present invention has been made in order to solve the above-mentioned problems, and suppresses the influence of the two-step change gear entering the change lever, suppresses the vibration transmission, and reduces the stroke loss feeling. It is an object of the present invention to provide an operating device with an improved feeling.

[0015]

An operating device of the present invention is a manual transmission operating device for pushing and pulling the inner cable of a push-pull control cable to perform a gear shift operation, and A change lever to be connected, a base bracket to which the change lever is tiltably attached, a conduit fixing bracket to which an end of the conduit of the control cable is attached, and at least one of the brackets and the vehicle body. An insulator interposed between the base bracket and the conduit fixing bracket, the brackets are independent of each other, and the insulator is configured to be displaceable at least in the axial direction of the control cable according to a load. ing.

It is preferable that the insulator is made of an elastic body and is attached to the bracket so that a restoring force can be generated in any moving direction.

[0017]

In the operating device of the present invention, since the dedicated bracket is provided separately from the base bracket in order to fix the conduit of the control cable, the vibration transmitted through the conduit is temporarily removed. After being transmitted to the floor surface (hereinafter referred to as the base), it is transmitted to the change lever through the base bracket, so it is greatly attenuated. Moreover, if the insulator between the base and the base is made of an elastic body that generates a restoring force in all directions as shown in FIG. 6, for example, the vibration transmitted to the change lever 41 through the base B is further damped by the insulator 42.

All of the insulators in the above-mentioned prior arts (Japanese Utility Model Publication No. 2-56725, Japanese Utility Model Publication No. 57-200438 and Japanese Utility Model Publication No. 4-48352) are for the vertical displacement of the operating device. It has almost no effect on the displacement in the horizontal direction (the inner cable movement direction of the control cable). Moreover, since the base bracket is a single body, it receives the reaction force from the conduit and the reaction force from the inner cable at the same time when the change lever is operated. Receive no power of.

On the other hand, in the present invention, since the insulator acts on the displacement of the bracket in the horizontal direction, the reaction force from the conduit 43 and the reaction force from the inner cable 44 are respectively, as shown in FIG. To the conduit fixing bracket 45 and the base bracket 46
Can be displaced separately.

Therefore, this insulator has the above-mentioned 2
It can receive the impact force as a step load, and the two-step phenomenon is greatly alleviated.

Moreover, since the bracket is moved in the load direction at the time of operation due to the provision of such an insulator, the first-time peak load of two stages shifts backward in time as compared with the conventional device. That is, in the device of the present invention, the peak load of the first time and the peak load of the second time are temporally close to each other, so that it is difficult to feel the two-step insertion.

In addition, when the change lever is tilted, in general, the human sense of the stroke amount is largely due to the X shown in FIG. 8, so that the prior art (see Japanese Utility Model Publication 4-48352). As described above, in the case where the outer casing has an insulator at the end, the distance X becomes large, and the feeling of stroke loss becomes extremely large. On the other hand, when the bracket moves (moving distance Z shown in FIG. 8) as in the present invention, the actual stroke amount is indicated by Y in FIG. 8, but the movement (Z) of the fulcrum of the change lever is a stroke. It is hard to feel, and the operator feels only X as a stroke. As described above, in the device of the present invention, the feeling of stroke loss is extremely small even though the insulator is used to receive the impact in the axial direction of the cable.

Further, as described above, the vibration from the conduit is difficult to be transmitted to the change lever, and the great advantage is that the feeling of entering the two steps is very small. Therefore, the operator can obtain a good operation feeling.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the operating device of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the operating device of the present invention, FIG. 2 is a graph showing the time change of the shift operating force of the operating device of FIG. 1, and FIGS. It is sectional drawing which shows the other Example of an apparatus.

As shown in FIG. 1, in the operating device 1, a base bracket 2 is provided in a tunnel case or the like between a driver's seat and a passenger seat of an automobile, and a casing 3 provided at one end of the base bracket 2 is provided. The change lever 4 is tiltably attached, and one end of a select control cable (hereinafter simply referred to as a select cable) 5 and one end of a shift control cable (hereinafter simply referred to as a shift cable) 6 are connected to the lower portion of the change lever 4. There is. And the characteristic point is that the conduits 7 of the select cable 5 and the shift cable 6 respectively,
One end of 8 is fixed to a conduit fixing bracket 9 independent of the base bracket 2. That is, the cable mounting portion 10 extending vertically from the bottom surface of the conduit fixing bracket 9 is provided with mounting holes 11 and 12, and the select cable 5 and the shift cable 6 are provided inside the respective holes through the casing caps 13 and 14. The conduits 7, 8 are fitted.

The inner cables 15 and 16 of the select cable 5 and the shift cable 6 are respectively the casing caps 13 and 14.
After being inserted through, the rods 17 and 18 are connected to one end by caulking or the like. On the other hand, the other end of each of the rods 17 and 18 is a connecting portion 5a provided at the base of the change lever 4 (a connecting portion for the shift cable is not shown) 5a.
Is pivoted to. Therefore, when the change lever 4 is tilted, the rods 17 and 18 are pushed and pulled through the connecting portion, and finally the inner cables 15 and 16 of the select cable 5 and the shift cable 6 are pushed and pulled.

In the operating device 1 constructed as above, the conduits 7 and 8 of the select cable 5 and the shift cable 6 are separated from the base bracket 2 that supports the change lever 4 and the conduit fixing bracket 9 is provided. The vibration transmitted through the conduits 7 and 8 is
It is not directly transmitted to the base bracket 2 and the change lever 4. Therefore, the vibration of the change lever 4 becomes extremely small.

Further, since the vibration transmitted from the automobile body to the change lever 4 also exists in an actual vehicle, it is restored between the base bracket 2 and the automobile body in any direction such as natural rubber or chloropropylene rubber. An insulator 19 made of an elastic body that generates a force is interposed. By providing such an insulator 19,
Since the brackets 2 and 9 can move in the load direction (axial direction of the cables 5 and 6), the time interval between the two peaks of the operating force is shortened as described later, and it becomes difficult to feel the two-step insertion. Further, since a restoring force is generated in this insulator 19 in any direction, the vibration transmitted to the change lever 4 is further reduced, unpleasant vibration such as chatter vibration does not occur, and the operation feeling is further improved.

FIG. 2 shows the experimental results of the operating force in the operating device 1, and is a graph in which the vertical axis represents the shift operating force and the horizontal axis represents the operating time. The change over time of the shift operation force acting on the change lever 4 will be described with reference to this figure.

In the process of the shift operation, as shown in FIG.
5 to 5, the chamfer 57a of the teeth of the sleeve hub 57 collides with the chamfer 59a of the gear 59 in the moving direction of the sleeve hub 57. A peak occurs (C in FIG. 2), and then the sleeve hub 57 and the gear
Since there is a difference in the number of rotations with 59, the side faces of the teeth of the sleeve hub 57 and the side faces of the teeth of the gear 59 collide with each other when they mesh with each other. At that time, a second peak occurs (D in FIG. 2). If the two peaks of the shift operating force are compared with the shift operating force (curve shown by the broken line in FIG. 2) when the conventional operating device is used, the peak value of the second shift operating force is the same as that of the conventional one. Compared with the conventional one, the time interval t between the first peak and the second peak is much shorter than the conventional one, so that the two-step insertion is hardly felt by the user, and therefore the smoothness is smooth. You can see that the shift operation is possible.

The insulator and its installation site in the operating device of the present invention are not limited to the above embodiments. For example, like the operating device 21 shown in FIG. 3, an elastic body insulator 24 such as rubber may be interposed between the base and the bracket 22 in the axial direction of the cable 23, and also shown in FIG. 4, for example. Like the operating device 25 described above, an insulator 28 composed of a coil spring may be interposed between the base and the bracket 26 in the axial direction of the cable 27 and in the direction perpendicular thereto. Furthermore, in the case of a relatively small operating device such as the operating device 29 shown in FIG. 5, even if the insulator 31 is interposed only between the conduit fixing bracket 30 and the base, the feeling of the shift operation can be improved. It is possible.

[0033]

In the operating device of the present invention, the vibration transmitted through the conduit is difficult to be transmitted to the change lever, and the feeling of entering the second gear during the shift operation is extremely small. Further, the stroke feeling when the change lever is tilted is small, and an extremely good operation feeling can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an operating device of the present invention.

FIG. 2 is a graph showing a change with time of a shift operation force of the operation device of FIGS. 1 and 9.

FIG. 3 is a sectional view showing another embodiment of the operating device of the present invention.

FIG. 4 is a sectional view showing still another embodiment of the operating device of the present invention.

FIG. 5 is a sectional view showing still another embodiment of the operating device of the present invention.

FIG. 6 is a cross-sectional view for explaining the operation of the operating device of the present invention.

FIG. 7 is a cross-sectional view for explaining the operation of the operating device of the present invention.

FIG. 8 is a cross-sectional view for explaining the operation of the operating device of the present invention.

FIG. 9 is a perspective view showing an example of a conventional operating device.

FIG. 10 is an enlarged plan view of an essential part showing an example of a transmission synchronization device.

11 is a longitudinal sectional view of an essential part showing an example of a meshing portion of the synchronizer of FIG.

FIG. 12 is a graph showing a change over time of a shift operation force in a conventional device for explaining a phenomenon involving two steps.

[Explanation of symbols]

 1 operating device 2 base bracket 4 change lever 5 select cable 6 shift cable 7 conduit 8 conduit 9 conduit fixing bracket 15 inner cable 16 inner cable 21 operating device 25 operating device 29 operating device

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[Procedure amendment]

[Submission date] July 21, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

Generally, in this type of operating device, the vibration transmitted through the control cable is the base bracket.
There is a problem that it is transmitted from 52 to the floor and the floor vibrates and an unpleasant noise is generated. Therefore, as disclosed in Japanese Utility Model Publication Nos. 57-200438, 2-56725 and 4-48352. to, those subjected or providing a Inshure data between the operating device and the floor, measures such as receiving socket portion of the conduit attachment end in the insulator.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

10 to 11 schematically show the main parts of a transmission synchronizer, FIG. 10 is a plan view thereof, and FIG. 11 is a longitudinal sectional view thereof. In FIG. 10, for ease of understanding, the tooth portions 57a, 58a, 59a of the sleeve hub 57, the synchronizer ring 58, and the gear 59, respectively, are shown.
It is denoted by the hatch ring to the shifting key 60 with. Figure
Reference numeral 12 shows the change over time in the operating force of the shift knob 51.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009] After the synchronization by as on ordination is complete, occurs in probability that the impact force of the following when a power coupling. That is, (1) due to the shift operation force, the chamfer 57b of the tooth 57a of the sleeve hub 57 collides with the chamfer 59b of the tooth 59a of the gear 59 in the moving direction of the sleeve hub 57 (indicated by two-dot chain lines in FIGS. 10 to 11). Impact force occurs when shown).

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

In addition, when the change lever is tilted, in general, the human sense of the stroke amount is largely due to the X shown in FIG. 8, so that the prior art (see Japanese Utility Model Publication 4-48352). than those with insulators Autake over single end as the distance X becomes larger, becomes the stroke loss feeling is very large. On the other hand, when the bracket moves (moving distance Z shown in FIG. 8) as in the present invention, the actual stroke amount is indicated by Y in FIG. 8, but the movement (Z) of the fulcrum of the change lever is a stroke. It is hard to feel, and the operator feels only X as a stroke. in this way,
In the device of the present invention, although the insulator is used to receive the impact in the axial direction of the cable,
The feeling of stroke loss is extremely small.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

In the process of the shift operation, as shown in FIG.
Within synchronizer transmission shown in 5, chamfer 57 b is the gear 59 of the teeth 57a of the sleeve hub 57
Against chamfer 59 b of the teeth 59a of the peaks of first shifting force when impinging on the moving direction of the sleeve hub 57 is generated (C in FIG. 2), then, the sleeve hub
Since there is a difference in the number of rotations between the gear 57 and the gear 59, when the two mesh with each other, the tooth flanks of the sleeve hub 57 and the gear 59 are engaged.
Collides with the side of the tooth. At that time, a second peak occurs (D in FIG. 2). If the two peaks of the shift operating force are compared with the shift operating force (curve shown by the broken line in FIG. 2) when the conventional operating device is used, the peak value of the second shift operating force is the same as that of the conventional one. Compared with the conventional one, the time interval t between the first peak and the second peak is significantly shortened,
The two-step shift is hardly felt by the user, and it can be seen that a smooth shift operation is possible.

Claims (2)

[Claims] 1. A manual transmission operating device for pushing and pulling an inner cable of a push-pull control cable to perform a gear shift operation, comprising a change lever connected to the inner cable of the control cable, and the change lever. A tiltingly mounted base bracket, a conduit fixing bracket to which an end of the conduit of the control cable is mounted, and an insulator interposed between at least one of the brackets and the vehicle body. A manual transmission operating device in which a bracket and a conduit fixing bracket are separated from each other, both brackets are independent of each other, and the insulator is configured to be displaceable at least in the axial direction of a control cable in accordance with a load. 2. The manual transmission device according to claim 1, wherein the insulator is made of an elastic body, and is mounted so that a restoring force can be generated in any moving direction of the bracket.