JPS6114909Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an operating mechanism for an automobile transmission, in particular,
A shifter in which a part of the vehicle floor in the widthwise center of the vehicle floor where no vehicle frame exists nearby is bulged upward to form a space, and a shift lever is supported within this space. The present invention relates to an improvement in an operating mechanism in which a lever housing is provided and a transmission is operated by the shift lever.

Generally, in the above type of operating mechanism, the shift lever housing is attached via a vibration isolating member to a bulge formed on the vehicle floor for the purpose of reinforcing the floor, and the vibration is transmitted to the shift lever housing. The structure is such that vibrations (for example, vibrations caused by driving the engine or transmission) are not directly transmitted to the vehicle floor. however,
In this operating mechanism, when the shift lever is operated, each component of the operating mechanism or the transmission collides at each connecting portion, and the accompanying vibration is transmitted to the vehicle floor through the vibration isolating member. The bulge is transmitted to the bulge, and this swells within the space, producing a rumbling noise from the vehicle floor.

The present invention has been devised by paying attention to this problem, and embodiments thereof will be described below with reference to the drawings.

1 to 3 are diagrams showing a first embodiment of the present invention, in which the vehicle floor 10 has a substantially central portion in the width direction in the longitudinal direction of the vehicle, as is usually implemented in automobiles. The bulging portion 10a forms a space R on the lower surface of the vehicle floor 10. This bulge 10
Of course, in a vehicle with a vehicle body structure without a frame, a is located at a location where there is no frame nearby even in a vehicle with a vehicle body structure with a frame. Further, the shift lever 21 that constitutes the operating mechanism 20 of the transmission 11 passes through the bulge 10a of the vehicle floor 10 and is connected to the tip of the shift arm 22 so as to be tiltable in the longitudinal direction of the vehicle.
Its lower end is connected to the control shaft 12 of the transmission 11 via a control rod 28. The shift arm 22 is attached to a shift lever housing 24 disposed within the space R so as to be tiltable in the left-right direction of the vehicle.

Therefore, in this embodiment, the shift lever housing 24 is suspended from the lower surface of the support bracket 30 via the pair of front and rear support links 25, 25 and the base plate 26 so as to be swingable in the longitudinal direction of the vehicle. It is connected to the transmission 11 main body via 27. As clearly shown in FIGS. 2 and 3, the support bracket 30 is a plate bent into a trapezoidal shape, and has rubber bushings (vibration isolating members) 31 to 31 at both flange portions 30a, 30a. Both reinforcing members 1 through
3 and 13, respectively, and its central trapezoidal portion 20b is accommodated in the cavity R with a required gap from the bulge portion 10a of the vehicle floor 10.
Both reinforcing members 13, 13 are fixed to the lower surface of the vehicle floor 10 on both sides of the bulging portion 10a along the longitudinal direction of the vehicle.

FIG. 4 is a diagram showing a second embodiment of the present invention, in which a shift lever housing 124 is connected to a pair of front and rear support links 124.
5, 125 and the base plate 126, it is mounted and fixed on the upper surface of the support bracket 130 so as to be swingable in the longitudinal direction of the vehicle. Support bracket 1
30 is a flat plate, and similarly to the support bracket 30 of the first embodiment, it is attached to both reinforcing members via rubber bushings at both side flanges. Since the other configurations are substantially the same as those of the first embodiment, the same reference numerals are given and the explanation thereof will be omitted.

In both embodiments configured as described above, the engine and the transmission 1 are driven by the engine and the transmission.
The vibration transmitted from 1 to the shift lever housing 24, 124 is transmitted to both support links 25, 25, 1.
25, 125 and the base plates 26, 126 to the support brackets 30, 130, and is further attenuated from the support brackets 30, 130 by the rubber bushes 31-31 to the reinforcing members 13, 13.
It is transmitted to The vibrations transmitted to the reinforcing members 13, 13 are directly transmitted to the vehicle floor 10, but since they are attenuated by the rubber bushes 31 to 31, vibrations and noise that cause discomfort to the driver and passengers are transmitted to the vehicle floor 10. It does not occur indoors.

Moreover, when the shift lever 21 is operated,
Each component of the operating mechanism 20 or the transmission 11 collides at each connection part, and the resulting vibrations are transmitted to the vehicle floor 10 in the same way as the vibrations described above. bulging part 1
Since the noise is not directly transmitted to 0a, there is no resonance within the space R, and the generation of abnormal noise that gives the driver a sense of discomfort and anxiety is prevented.

FIGS. 5 to 7 are views showing a third embodiment of the present invention, and in this embodiment, legs 230a and 23 that expand in a V-shape serve as support brackets.
A support bracket 230 with 0a is employed. The support bracket 230 has both legs 230
It is attached to the lower surface of the vehicle floor 10 except for the bulging part 10a through the rubber bushes 31 to 31 at the a and 230a, and the base plate 226 and the pair of front and rear support links 225, 225 are attached at the tip support part 230b. The shift lever housing 224 is suspended and supported so as to be swingable in the longitudinal direction of the vehicle. The other configurations are the same as those of the first embodiment, so the same reference numerals are given and the explanation thereof will be omitted.

In this embodiment configured as described above, since the support bracket 230 is supported in a cantilever manner, the damping characteristics of the support bracket 230 also reduce vibrations transmitted from the engine and transmission 11 and the operation of the shift lever 21. The accompanying vibrations are damped. Further, in this embodiment, the shift lever housing 224 is supported by the tip support portion 230b, which is the free end of the support bracket 230, so the shift lever housing 224 is elastically movable in the vertical direction. Lever 21
can improve the operating feeling.
Note that, although explanations of other functions will be omitted, the functions and effects obtained in both of the above embodiments can of course be obtained in this embodiment as well.

Note that the present invention is not limited to the above-mentioned embodiments, but is applicable to a type of operating mechanism in which a shift lever housing that supports a shift lever is disposed in a space formed below a bulge in a vehicle floor. All of these can be implemented.

In summary, in the present invention, as exemplified in each of the above embodiments, the support brackets 30, 1
30, 230 on the vehicle floor 1 excluding the bulge 10a
Rubber bushings (vibration isolating members) 31 to 31 on the bottom surface of 0
This support bracket 30, 13 is attached via
Shift lever housing 24, 12 at 0,230
The main structural feature is that the shift lever 21 is attached to the shift lever housing 24, 124, 224 so as to be tiltable by penetrating the bulge 10a of the vehicle floor 10. This not only attenuates the vibrations caused by the engine and transmission drive and transmits them to the vehicle floor, but also appropriately damps vibrations when operating the shift lever without causing resonance, thereby reducing abnormal noise from the vehicle floor. This can be prevented from occurring.

[Brief explanation of the drawing]

1 to 3 are views showing a first embodiment of the present invention, in which FIG. 1 is a partially cutaway side view, and FIG. 2 is a longitudinal sectional front view taken along the line - in FIG. 1. , 3rd
The figure is a plan view of the support bracket shown in FIGS. 1 and 2. FIG. 4 is a partially cutaway side view showing a second embodiment of the present invention. 5 to 7 are views showing a third embodiment of the present invention, in which FIG. 5 is a partially cutaway side view, and FIG. 6 is a longitudinal sectional front view taken along the line - in FIG. FIG. 7 is a plan view of the support bracket shown in FIGS. 5 and 6. Explanation of symbols, 10...Vehicle floor, 10a...
Bulge on vehicle floor, 11...Transmission, 20...
Operation mechanism, 21...shift lever, 24...shift lever housing, 30...support bracket,
31...Rubber butt, R...Blank.

Claims (1)

[Scope of utility model registration request] A part of the vehicle floor in the approximate widthwise center where there is no vehicle frame nearby is bulged upward to form a space below this bulge, and the shift lever is supported within this space. In the operation mechanism for an automotive transmission, the operation mechanism is provided with a shift lever housing that operates the transmission using the shift lever, and is supported on the lower surface of the vehicle floor excluding the bulge through a vibration isolating member. A transmission for an automobile, characterized in that a bracket is attached, the shift lever housing is assembled to the support bracket, and the shift lever is attached to the shift lever housing so as to be tiltable by penetrating the bulge of the vehicle floor. Machine operating mechanism.