JPS5917692Y2 - Automotive transmission remote control device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a remote control device for automobiles.

In general, a remote control device for a transmission in an automobile transmits select and shift operations of a shift lever installed on the floor of the vehicle interior to the transmission via a select control rod and a shift control rod placed below the floor. However, in the case of using two control rods as described above, in order to place both control rods in a narrow space below the floor without interfering with exhaust pipes, etc., a large floor tunnel is required. Therefore, there is a problem that the living space inside the vehicle is reduced accordingly.

As a means to solve the above-mentioned problems, it is also possible to transmit the selection and shift operations of the shift lever using a single control rod, as shown in, for example, Japanese Utility Model Publication No. 48-42967.

However, for example, in FF cars (front engine front drive cars) with horizontally mounted engines, where the gear shift shaft of the transmission is displaced outward from the center of the car body, the controls are placed at the center of the car body. It is not possible to directly connect the rod to the speed change shaft of the transmission as in the prior art described above.

Therefore, in a vehicle such as the above-mentioned FF vehicle in which the shift shaft and control rod are offset in position, when transmitting select and shift operations using a single control rod, for example,
As shown in Publication No. 39406, a select arm and a shift arm are provided at the end of the control rod on the transmission side, and these arms are connected to the transmission shaft via two independent link systems such as bell cranks. Therefore, in the above device, the structure of the connecting part between the control rod and the speed change shaft is not only complicated, but also a large installation space is required, and each joint part of the link system is connected in an interlocking manner. There is a problem in that the backlash reduces the operational feeling.

On the other hand, since the transmission of an automobile is elastically supported by the vehicle body by a rubber mount, the transmission shaft is constantly moved relative to the vehicle body due to engine vibrations and the like.

Therefore, if the shift lever for operating the transmission is directly supported on the floor of the vehicle body, vibrations of the transmission will be amplified by the lever ratio of the shift lever, causing a problem that the knob side of the shift lever will vibrate greatly.

Therefore, in the past, an extension rod was extended from the transmission case parallel to the control rod,
The shift lever is supported at the free end of the extension rod, but in the above configuration, space for the extension rod must be secured below the floor in addition to the space for the control rod. In a vehicle where the gear shift shaft of the transmission is disposed outward in the vehicle width direction from the center of the vehicle body, such as a front-wheel drive vehicle with a horizontally mounted engine, there are two independent Coupled with the need for a sufficient installation space so that the link systems do not interfere with each other, it is necessary to secure a large installation space below the floor as a whole for placing the control device. It was.

The present invention solves the above-mentioned problems in a remote control device for an automobile transmission in which the shift shaft is offset with respect to the control rod, and the shift lever is supported via an extension rod. The aim is to create an automatic transmission that has a simple structure, requires less installation space, and has an excellent operating feel by using the extension rod as a cylindrical housing as a support member for the control rod. We do not provide remote control equipment for the machine.

Accordingly, in the present invention, a control rod is rotatably and slidably supported in a cylindrical extension housing with one end pivotally connected to the transmission case and the other end elastically supported on the vehicle body. a shift lever in which i is supported on the other end side of the extension housing so as to be able to swing freely;
The control rod is connected to the control rod and has an operating rod extending radially through the extension housing at the other end. At the shaft end of the speed change shaft,
A passive rod extending in the radial direction is provided, and the passive rod and the operating rod are connected via a ball joint made of a spherical body and a socket,
This simplifies the structure of the control device, provides a good operational feeling, and makes it possible to confirm whether or not a gear shift operation has been performed, thereby ensuring that the gear shift operation is performed reliably.

Next, details of the present invention will be explained based on embodiments shown in the drawings.

In the figure, reference numeral 1 designates a shift lever, and a two-pronged member 2 is pivotally connected to the lower end of the lever 1 via a first pivot 4 extending in approximately the same direction as the control rod 3. The shaped member 2 is pivotally connected to a housing 5 fixed to a part of the vehicle body via an elastic material a such as rubber, via second pivot shafts 6, 6 extending in a direction substantially orthogonal to the control rod 3. There is.

An operating arm 7 is integrally connected to the bifurcated member 2, and a shift arm is pivotally connected to a piece 8 at the end of the control rod 3 at the tip of the operating arm 7. 9 are connected to each other via a ball joint 10, and the control rod 3 controls the operating arm 7, shift arm 9, and bridge of the trifurcated member 2 by swinging back and forth around the second pivot 6 of the shift lever 1. It is configured to rotate via the body 8.

Further, a bell crank 11 is pivotally attached to the housing 5 between the shift lever 1 and the control rod 3,
One end 11a of the bell crank 11 is connected to the forked member 2.
The other end 11b of the bell crank 11 is connected to the lower end 1a of the shift lever 1, which is pivotally connected to the lower end 1a of the shift lever 1. , the control rod 3 is connected to the first shift lever 1.
By swinging in the left and right direction around the pivot 4, the control rod 3 is moved through the bell crank 1'1 and the piece 8.
It is designed to be reciprocated in the longitudinal direction.

Further, the control rod 3 is connected to the vehicle body side housing 5.
The other end of the extension housing 12 is inserted through a bearing 13 into a cylindrical extension housing 12 formed integrally with the transmission of the power unit 15 of the automobile via a swingable connector 14. connected to the case.

This connecting tool 14 is constructed by fixing a metal fitting 16 having a U-shaped cross section to the extension housing 12 side, and connecting an outer cylinder 17 to the transmission case of the power unit 15.
7, a rubber body 19 is interposed between the bushing 18 and the outer cylinder 17, and a bolt 20 is passed through the metal fitting 16 and the bushing 18.

Further, an operating rod 21 is connected to the end of the control rod 3 opposite to the shift lever 1, passing through the extension housing 12 and extending in the radial direction of the control rod 3. A passive rod 23 extending in the radial direction of the transmission shaft 22 is provided at the shaft end of the transmission shaft 22, which is slidably supported and provided at a position offset from the control rod 3 as shown in FIG. , the passive rod 23 and the operating rod 21 are connected to a spherical body 24 and a socket 25 into which the spherical body 24 is loosely fitted.
The select operation and shift operation of the shift lever 1 are thereby transmitted to the speed change shaft 22 via a transmission path formed by the operating rod 21 and the passive rod 23. It is now possible to do so.

In the figure, 27 is a boot made of a flexible material such as rubber.

In the above control device, shift lever 1 is now
When the forked member 2 is swung in the left-right direction about the first pivot 4 as shown by the arrow A in FIG. The bell crank 11 is swung, and the control rod 3 is reciprocated in its longitudinal direction via the piece 8 connected to the other end 11b of the bell crank.

As the rod 3 reciprocates, an operating rod 21 is connected to the tip thereof, and a passive rod 2 is connected to the operating rod 21 by a ball joint 26.
3, the transmission shaft 22 of the transmission is reciprocated along the -transmission path, thereby performing a selection operation.

Further, when the shift lever 1 is swung back and forth as shown by the arrow in FIG. The operating arm 7 of the bifurcated member 2 and the shift arm 9 connected to this arm 7 are swung.
At the same time, the control rod 3 is rotated via the piece body 8.

As the rod 3 rotates, the operating rod 21 and the passive rod 23 at the tip thereof bend around the ball joint 26 as shown by the two-dot chain line in FIG. The shift shaft 22 is rotated through one transmission path, thereby performing a shift operation.

As described above, according to the remote control device of the present invention, the control rod is housed inside the extension housing, and the control rod and the speed change shaft that is displaced with respect to the rod are connected to the operating rod provided on these rods and the speed change shaft. The two rods are interlocked by a passive rod and a ball joint connecting these two rods, and the two operations of the select shift are transmitted through one transmission path using these rods and the ball joint. As in Japanese Patent Publication No. 42967, the shift I~lever does not shake significantly due to engine vibration, and secondly, the extension rod and control rod are placed separately on the Yaw of the conventional example. As in the conventional example shown in the publication, the control rod and the shift shaft displaced with respect to the rod are configured to transmit select and shift operations through two transmission paths using two independent link systems. In comparison, the overall structure of the control device is extremely simple, and the installation space required for arranging the device is also very small.Therefore, there is no need to make the floor tunnel large, and other components can be placed in the narrow space under the floor. This made it possible to place them without interfering with the

According to the present invention, thirdly, the control rod is housed inside the extension housing using the extension housing, so that the exhaust heat of the exhaust pipe connected adjacent to the rod and the splashing up during driving are absorbed. This allows the control rod to be protected from stones and the like.

Also, according to the present invention, fourthly, the control rod and the speed change shaft displaced with respect to the rod are interlocked and connected through one transmission path using an operating rod, a passive rod, and a ball joint.
The number of joints is reduced compared to the conventional one, so there is no risk of deterioration in operating feel due to play in the joints.

In summary, according to the present invention, by organically combining the above-mentioned configurations, the structure of the entire device is simplified compared to the conventional example using an e-tension rod, while eliminating the swinging of the shift lever due to engine vibration. Rush,
In other words, it can be easily constructed without complicating the structure of Japanese Utility Model Publication No. 48-42967, and the operational feeling is of course better than that of Japanese Utility Model Publication No. 48-39406, and the device can be arranged more easily. Since the space required to do so is extremely small, there is no need to make the floor tunnel as large as in the past, and the living space inside the vehicle can be expanded accordingly.

[Brief explanation of drawings]

The drawings show an embodiment of the control device according to the present invention, FIG. 1 is a side sectional view of the device, FIG. 2 is a plan sectional view thereof,
FIG. 3 is an enlarged perspective view of a portion of the shift lever, and FIG. 4 is an enlarged side view of a portion of the transmission shaft operating mechanism.

Claims (1)

[Scope of utility model registration request] A control rod is rotatably and slidably supported in a cylindrical extension housing whose one end is pivotally connected to the transmission case and whose other end is elastically supported by the vehicle body. The control lever is connected to a shift lever that is swingably supported at one end, and has an operating rod extending radially through the extension housing at the other end, and is rotatably and slidably supported by the transmission and is connected to the control lever. A passive rod extending in the radial direction is provided at the shaft end of the speed change shaft provided at a position offset from the rod, and the passive rod and the operating rod are connected via a ball joint consisting of a spherical body and a socket. A no-moto control device for an automobile transmission characterized by: