JPS598926Y2 - Brake operating device for mobile vehicles - Google Patents

Description

[Detailed description of the invention] This invention enables the brake to be applied by releasably engaging a locking device connected to the brake pedal with a locking portion fixed to the machine frame when the brake pedal is depressed. The present invention relates to a brake operating device for a moving vehicle such as a combine harvester, which is configured to operate a parking brake by fixing a pedal in a depressed state.

In the brake operating device for such a mobile vehicle, the brake during normal driving can also be used as a parking brake, so only one brake is required, and the operating mechanism dedicated to the parking brake can be structurally simplified. On the other hand, it has the disadvantage that the locking tool may unexpectedly engage with the fixed locking part when the brake pedal is operated during normal driving, causing problems such as sudden stopping of the aircraft. be.

An object of the present invention is to prevent such drawbacks by simply improving the structure without using any special members.

The brake operating device for a mobile vehicle according to the present invention is configured such that the brake pedal can be laterally swung about a fulcrum at a point that is deviated to one side laterally from the center of the left and right width of the pedal. It is characterized in that the locking tool connected to the pedal can be held and supported by a locking portion fixed to the fuselage body by swinging laterally in a direction opposite to the positioning direction.

That is, according to the present invention, when the brake pedal is depressed and the pedal is laterally swung, the locking device connected to the pedal engages with the fixed locking portion on the machine frame side. Therefore, during normal driving, the locking device can be held in a horizontal swing state in which it is released from the fixed locking part by the pressing force on the pedal. Although it has been converted into a foot brake and a parking brake, and most of the operating mechanisms for both brakes are common, the overall structure is economical.
The inconvenience that the locking device unexpectedly engages with the fixed locking part during normal brake pedal operation can be solved easily, quickly and inexpensively by improving the pedal mounting structure without using special biasing devices such as springs. I was able to solve the problem using a suitable method.

In particular, when the locking device is also used as an artificial operating device for horizontally swinging the pedal, the brake pedal can be fixed and held in the depressed state even from the ground when the vehicle is disembarking. , it can be made even more user-friendly.

Hereinafter, an embodiment of the present invention will be described based on the drawings. The machine is equipped with a crawler traveling device 4 and a threshing device 5. At the front of the threshing device 5, there is a control box equipped with a seat 6 and various operating levers. 7 and a step 8 integrally connected with an upwardly rising wall 8A at the front end. ), the brake pedal 1 is connected to the brake arm 1A which is swingable around the horizontal axis a and which is interlocked and connected to the brake installed in the transmission system for the crawler traveling device 4. The brake pedal 1 is mounted so as to be swingable back and forth with a point deviated to one side with respect to the center as a fulcrum R, and the brake pedal 1 is attached to the engaging portion 3 formed in the rising wall 8A of the step 8. When the pedal 1 is depressed, it is engaged as the pedal 1 swings backwards, thereby preventing the pedal 1 from returning to its upward swing. A locking tool 2 is integrally connected to the locking tool 2 to be released.

The locking tool 2 extends forward for a long time so as to serve also as an artificial operating tool for horizontally swinging the pedal 1 from a position in front of the rising wall 8A.

The upright wall 8A is formed with a guide groove 11 through which the locking tool 2 is inserted in the front-rear direction and which restricts the forward rocking of the pedal 1 beyond a certain level when the pedal 1 is depressed. There is.

According to the above structure, the pedal force applied to the pedal 1 acts as a biasing force to horizontally swing the pedal 1 forward, and therefore, when the pedal is depressed, the pedal 1 must be consciously operated with the foot or via the locking device 2. The locking tool 2 does not engage with the locking portion 3 unless it is manually swung rearward.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the brake operating device for a mobile vehicle according to the present invention, and FIG. 1 is an overall side view of the combine harvester (mobile vehicle), FIG. 2 is an enlarged longitudinal sectional side view of the main parts, and FIG. FIG. 3 is an enlarged plan view of main parts. 1... Brake pedal, 2... Locking tool, 3... Locking part.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ The brake pedal 1 is configured to be able to swing laterally about a fulcrum at a point that is offset laterally from the center of the left and right width of the pedal. A mobile vehicle characterized in that it is configured to be able to laterally swing in a direction opposite to the direction in which the vehicle is positioned so that a locking device 2 connected to the pedal 1 can be secured and supported by a locking portion 3 fixed to the vehicle body. brake operating device. (2) The brake operating device for a moving vehicle according to claim (2), wherein the locking device 2 is also used as an artificial operating device for horizontally swinging the pedal.