JPH0545320U - Transmission operating device - Google Patents

Abstract

(57) [Summary] [Purpose] Do not damage the mechanism for preventing incorrect insertion of inertia when assembling the operating device to the transmission. In a transmission operating device having an erroneous insertion preventing mechanism, a protrusion 17 is provided at a tip of a rotating member 14a of the erroneous insertion preventing mechanism 11, and a recess 18 for engaging the protrusion 17 is formed in a housing 4. It is provided and both are engaged and fixed in advance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission operating device for an automobile, and more particularly, to a mechanism for preventing an erroneous injection of an operating device.

[0002]

[Prior Art]

 Conventionally, as a transmission operation device of this type, a shift lever fitted to a spline of a shift operation shaft is selected by changing the position in the operation axis direction by a select operation of a change lever, and then performing a select operation. By a shift operation of the change lever, for example, a booster such as a shift cylinder is driven to rotate the shift operation shaft about its axis to perform a shift operation.

In this shift operation, in order to prevent movement of the shift fork shafts other than the selected shift fork shaft of the transmission due to inertia during a particularly sudden operation, an erroneous inertia injection preventing mechanism is provided in the transmission operating device. It is provided. This prevention mechanism also prevents the gears of the two shift fork shafts of the transmission from meshing at the same time. (Jitsuko Sho 55-12043)

[0004]

[Problems to be solved by the device]

 However, when the operating device provided with this mechanism for preventing incorrect insertion of inertia is mounted on the upper part of the speed changer, the preventing mechanism is rotatably fitted to the shift operation shaft, that is, suspended in a hanging state. Therefore, there has been a problem that the prevention mechanism is often damaged by hitting the speed changing mechanism in the transmission or being sandwiched between the operating device and the speed changing mechanism. Further, the manufacturing cost may increase due to the replacement work of the prevention mechanism thereafter, and on the other hand, the workability is poor because the work is careful.

The present invention has been made in view of the above points, and an object thereof is to solve the above-mentioned problems and prevent the incorrect insertion of inertia so that there is no fear of damage when the operating device is assembled to a transmission. (EN) Provided is a transmission operating device having a mechanism.

[0006]

[Means for Solving the Problems]

 The configuration of the present invention for achieving the above object is to perform a select operation by changing the position of the shift lever fitted to the shift operation shaft in the operation axis direction, and center the axis of the shift operation shaft at the select position. In a transmission operating device that includes a mechanism for preventing an incorrect inertial closing operation by rotating the gearshift lever to one side, one of the incorrect inertial closing prevention mechanism is rotatably fitted to the shift operation shaft together with the shift lever. And the other rotating member and the other arm of the shift lever are pierced so as to allow the shift operation, and engage with the shift blocks of the other shift fork shafts on both sides around the shift block of the selected shift fork shaft. And a closing member for fixing a fixing member for preventing the movement of the other shift fork shaft. The fixing mechanism is fixed at a predetermined position. Provided with a projection or recess in the end portion of the rotating member, the housing shift operation shaft is disposed, and providing a recess or protrusion to engage the projection or recess.

[0007]

[Work]

 Since the present invention is configured as described above, the protrusion or recess provided on one end of the inertial false insertion preventing mechanism and the recess or protrusion provided on the housing side are engaged with each other. Then, the prevention mechanism is positioned and fixed at a predetermined position with respect to the housing. Therefore, when the transmission operating device is mounted on the transmission, the prevention mechanism is mounted in a fixed state.

[0008]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be exemplarily described in detail with reference to the drawings. 1 to 4 show an embodiment of a transmission operating device of the present invention, FIG. 1 is a plan view in which a main part is broken, FIG. 2 is a side view of the main part taken along line II-II in FIG. Is a cross-sectional view taken along the line III-III of FIG. 1, and FIG. 4 is a perspective view of an inertial false closing prevention mechanism assembled with a shift lever.

In the figure, the transmission operating device 1 drives a select cylinder 2 as a booster device to operate a select lever 3a by a select operation of a change lever (not shown), and the select lever 3b moves through a transmission shaft 3c. Select operation.

A shift lever 6 is fitted to a shift operating shaft 5 arranged in a housing 4 of the operating device 1 by a spline 7, and the select lever is operated in response to a select operation of the change lever (not shown). It is moved in the same operation axis 5 direction by 3b.

Next, the shift lever 6 drives the shift cylinder 8 as a booster by the shift operation of the change lever to rotate the shift operation shaft 5 about the axis thereof as shown by an arrow. Then, the shift operation is performed.

Then, at one select position selected by the select operation, the arm 6a of the shift lever 6 has one shift block, for example, 10b in the shift block 10 on the transmission 9 side, as shown in FIG. A shift fork shaft (not shown) provided with a shift fork (not shown) engaged with a gear (not shown) in the transmission 9 is operated to shift.

In this shift operation mechanism, an erroneous inertia input preventing mechanism 11 is arranged between the shift lever 6 and the shift block 10. The prevention mechanism 11 is composed of a throw-in prevention plate 12, fixed square members 13a and 13b, and rotating plates 14a and 14b.

That is, the closing prevention plate 12 allows the arm 6a of the shift lever 6 to pass through the elongated hole 15 so that the shift operation can be freely performed, and the shift block, for example, 10b of one selected shift fork shaft. As a center, two fixed corner members 13a and 13b, which are engaged with each other, are fixed between the claws of the shift blocks 10a and 10c of the other shift fork shafts arranged on both sides.

The two rotating plates 14 a and 14 b are erected on the closing prevention plate 12 and are rotatably fitted to the shift operating shaft 5, respectively, and the select lever is interposed therebetween. The shift lever 6 that engages 3b is provided.

The inertia erroneous injection preventing mechanism 11 is configured as described above, and in the selection operation, the fixed square members 13a and 13b of the preventing mechanism 11 together with the arm 6a of the shift lever 6 cooperate with the shift blocks. Smoothly move between the nails of 10a, 10b, 10c and 10d.

However, when one shift fork shaft shift block, for example, 10b of the transmission 9 is selected by the above selection operation, the shift block 10b of the selected shift fork shaft is used as the center of the other shift blocks. The fixed square members 13a and 13b of the prevention mechanism 11 are engaged between the claws of the shift blocks 10a and 10c of the shift fork shaft to prevent movement of the other shift fork shafts.

That is, by the prevention mechanism 11, only the shift block 10b of the selected shift fork shaft can be shifted by the arm 6a of the shift lever 6, and the inertia during a sudden shift operation causes It is possible to prevent movement of shift fork shafts other than the selected shift fork shaft of the transmission 9.

Further, when the shift operation shaft 5 fitted with the inertial false insertion prevention mechanism 11 is assembled with the housing 4 above the transmission 9, the prevention mechanism 11 is preliminarily provided with the housing 4. It is necessary to fix it to and to dispose it at a predetermined position of the transmission 9.

For this reason, the protrusion 17 is provided at the tip of both or both of the rotating plates 14a and 14b (14a in this embodiment) of the prevention mechanism 11 close to the housing 4 side. On the other hand, a recess 18 is provided in the housing 4 at a position where it engages with the protrusion 17 so that the prevention mechanism 11 is arranged at a predetermined position of the transmission 9.

Therefore, if the projection 17 of the prevention mechanism 11 is engaged with and fixed to the recess 18 of the housing 4 and the shift operation shaft 5 is assembled in the housing 4, when assembled in the transmission 9, Not only does the prevention mechanism 11 not be damaged, but the assembling workability is improved.

Note that the technique of the present invention is not limited to the technique in the above-described embodiment, and means of another aspect having the same function may be used, and the technique of the present invention is within the scope of the above configuration. Various changes and additions are possible.

[0023]

[Effect of the device]

 As is apparent from the above description, according to the transmission operating device of the present invention, one of the mechanism for preventing incorrect insertion of inertia is rotatably fitted to the shift operating shaft together with the shift lever and the other is the arm of the shift lever. To prevent movement of shift fork shafts other than the selected shift fork shaft and to fix the prevention mechanism in place while allowing the projection mechanism to pass through, the projection on one end of the prevention mechanism on the shift operation shaft side. Alternatively, since the recess is provided and the recess or the projection that engages with the projection or the recess is provided on the housing side where the shift operation shaft is provided, the prevention mechanism engages with the housing and is positioned at a predetermined position. , Fixed.

Therefore, the prevention mechanism does not have a risk of being damaged when the operating device is assembled to the transmission. Therefore, the frequency of subsequent replacement work of the prevention mechanism is reduced, and there is no fear that the manufacturing cost will increase due to damage of the prevention mechanism, and the workability at the time of mounting can be improved.

[Brief description of drawings]

FIG. 1 is a plan view of a main part of an embodiment of a transmission operating device of the present invention, broken away.

FIG. 2 is a side view of a main part taken along the line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view of an inertial erroneous insertion preventing mechanism assembled together with a shift lever.

FIG. 5 is a perspective view of a transmission-side shift block with which an erroneous inertia input preventing mechanism is engaged.

[Explanation of symbols]

 1 Transmission Operating Device 4 Housing 5 Shift Operating Shaft 6 Shift Lever 6a Shift Lever Arm 9 Transmissions 10a, 10b, 10c, 10d Shift Block 11 Inertial False Insertion Prevention Mechanism 12 Insertion Prevention Plates 13a, 13b Fixed Angle Members 14a, 14b Rotation Plate 17 Protrusion 18 Recess

Claims (1)

[Scope of utility model registration request] 1. A select operation is performed by changing a position of a shift lever fitted to a shift operation shaft in the operation axis direction, and at the select position, the shift operation shaft is rotated about its axis to perform a shift operation. And, in the transmission operating device provided with the inertial false injection prevention mechanism, the inertial incorrect injection prevention mechanism is
One is a rotating member that is rotatably fitted to the shift operating shaft together with the shift lever, and the other is a penetrating arm of the shift lever so that the arm can be shift-operated, and a shift block for the selected shift fork shaft. A closing prevention member that engages with the shift blocks of the other shift fork shafts on both sides in the center to fix a fixing member that blocks the movement of the other shift fork shafts, and fixes the prevention mechanism at a predetermined position. Therefore, a protrusion or a recess is provided at an end of the rotating member of the prevention mechanism, and a recess or a protrusion engaging with the protrusion or the recess is provided in a housing in which the shift operation shaft is disposed. Transmission operating device.