JPS6212668Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a transmission control device for a tilted cab vehicle.

Conventionally, in the transmission control device of a tilt-type cab car, when the cab is tilted, the transmission shift lever does not move with the cab, but remains on the chassis side (hereinafter referred to as the disposable type). In this control system, the fulcrum of the transmission shift lever was generally located on the engine. For this reason, whenever the engine installed in a vehicle is changed, the installation fulcrum of the transmission control lever must also be changed, and related parts of the transmission control device must be changed each time. There were drawbacks that required major changes.

The purpose of the present invention is to eliminate the above-mentioned drawbacks, and to provide a transmission shift lever in a disposable type control system in which the transmission shift lever remains on the chassis side when the cab of a tilt-type cab vehicle is tilted. To provide a transmission control device in which the fulcrum of a shift lever is not installed on the engine and the related parts of the transmission control device do not need to be changed even when the installed engine model is changed.

The gist of the present invention is to provide a disposable transmission control device for a tail-type cab vehicle, in which an arch-shaped member is swingably connected to the frame, and a bracket fixed to the arch-shaped member is provided with a shift lever. A ball joint supporting the base of the shift lever is provided, one end of a link rod is connected to the shift lever near its base via a first clevis, and the other end of the link rod is connected to the transmission via a second clevis. A second bracket is fixed to the arch-shaped member, and the bracket provided on the engine and the second bracket are connected by a link rod via a ball joint.

An embodiment based on the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of an embodiment of a transmission control device according to the present invention.

In Figure 1, bracket 2 is placed on frame 1.
is fixed by welding or bolting. A ball joint 4 is inserted into the hole 3 drilled in the bracket 2.
The shaft side of the ball joint 4 is inserted and fixed, and a substantially inverted U-shaped arch 5 is swingably supported on the socket side of the ball joint 4, that is, the swinging side. A bracket 6 is fixedly mounted on the central portion of the arch 5, and a transmission shift lever 8 whose lower end is rotatably supported by a ball joint 7 is attached to the bracket 6. This transmission shift lever 8 is connected to the transmission via a clevis 9 connected to its lower end, a link rod 10 connected to this clevis 9 at one end, and a clevis 11 connected to the other end of this link rod 10. It is coupled to mission 12. Further, a bracket 12 is fixed to one side of the central part of the arch 5, and a support rod 1 is attached to a ball joint 13 attached to this bracket 12.
4 is swingably connected, and the other end is swingably connected to a ball joint 16 attached to a bracket fixedly mounted on the engine (not shown). Note that the engine side (not shown) and the transmission are coupled via a main drive pinion shaft 17.

Next, the operation of the present invention will be explained.

When the driver operates the shift lever 8, the movement of the shift lever 8 is as follows: clevis 9, link rod 10,
The signal is transmitted to the transmission 12 via the clevis 11, and the transmission is switched. Now, a case will be described in which the rear axle (not shown) pushes the propeller shaft (not shown) forward of the vehicle by wind-up, and pushes the transmission 12 forward of the vehicle.

Since the transmission 12 is integrally coupled with an engine (not shown), a flywheel housing, and a clutch housing, when the transmission 12 is pushed forward, the engine is also pushed forward in the vehicle. Accordingly, the bracket 15 fixed to the engine also moves forward and pushes the arched member 5 forward via the link rod 14. Since the amount of movement of the transmission 12 and the amount of movement of the engine at this time are the same, the link rod 10 does not move relative to the transmission, and no gear slippage occurs.

Furthermore, when changing the engine type, the engine type can be easily changed by simply changing the lengths of the bracket 15 and link rod 14 to suit each engine.

Since the present invention is constructed and operates as described above, even if the type of engine installed is changed,
There is no need to change the parts related to the transmission control device, such as the length of the link rod that connects the shift lever and the transmission, when changing the fulcrum installation on the engine, and the type of engine installed can be easily changed. Also, when the vehicle brakes suddenly, the movement of the engine and transmission suspended on the frame 1 via a vibration isolating means (not shown) is prevented by the ball joint 13,
The force is transmitted to the arch 5 via the support rod 14 which is pivotally connected to the support rod 16, and the arch 5 moves forward and backward (first
By pivoting in the direction indicated by the arrow in the figure, it is possible to prevent the gear from slipping out.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention. 1...Frame, 4...Ball joint (swinging means), 5...Arch (arch-shaped member), 6...
Bracket, 7... Ball joint, 8... Shift lever, 9, 11... Clevis, 10... Link rod, 12... Transmission.

Claims (1)

[Scope of utility model registration request] In a disposable transmission control device for a tail-type cab vehicle, an arch-shaped member is swingably connected to the frame, a first bracket is fixed to the arch-shaped member, and a shift lever is attached to the bracket. A ball joint is provided for supporting the base of the shift lever, one end of a link rod is connected to the base of the shift lever via a first clevis, and the other end of the link rod is connected to a second end of the shift lever.
A second bracket is fixed to the arched member, and the bracket provided on the engine and the second bracket are connected to the transmission via a ball joint. A transmission control device characterized in that the transmission control device is connected.