JPS6234832Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to a pedal stopper device of a pedal mechanism that connects and disconnects power and brakes by stepping on a pedal such as a clutch pedal or a brake pedal. It is.

(b) Prior art The clutch pedal and brake pedal have a certain limit of depression, and if the pedal is depressed beyond this limit, the arms will become jammed and the pedal will not return, the clutch will not engage, and the brake will not be able to be released. It makes you feel relaxed.

In order to solve this problem, a pedal stopper device has been provided in the past.

For example, as in Japanese Utility Model Application Publication No. 56-136821.

(c) Problems to be solved by the invention However, in conventional passenger car clutch pedals, etc., a part of the clutch pedal is interposed between a part of the clutch pedal and the fuselage body, and the clutch pedal is inserted in a direction opposite to the direction in which the clutch pedal is depressed. A stopper device was installed.

In addition, on tractors, a long stopper is provided downward from the step to limit the rotation of the pedal crossbar, resulting in problems such as the stopper parts becoming large and thick and heavy in order to maintain strength. It was hot.

In order to prevent the stopper from increasing in size and to limit the range of vertical movement of the vertical pedal rod 1b, the present invention provides a pedal stopper that protrudes from the rear surface of the vertical pedal rod and engages with the vertical movement of the pedal rod. A step stopper that limits the range of rotation of the rod protrudes from the front of the step.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

A stopper 9 on the step side of the step 2 is protruded from the front of the step 2 where the vertical pedal rod 1b of the clutch pedal 1 moves up and down, and conversely, the vertical pedal rod 1b
A stopper 8 on the pedal side is provided protruding from the rear surface of the step, and both stoppers are configured to engage at the front part of the step.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Fig. 1 is a side sectional view of the clutch device of an agricultural tractor, Fig. 2 is a rear view of the clutch device,
Figure 3 is a side view of the step and clutch pedal.
FIG. 4 is a plan view, FIGS. 5, 6, and 7 are a plan view, a side view, and a rear view of the step, and FIGS. 8 and 9 are a plan view and a side view of the clutch pedal.

The tractor shown in FIGS. 1 and 2 is a frame tractor, in which a frame 10 extends from the front end to the rear end of the machine body, and the engine is placed floating on the frame via vibration-proof rubber. The clutch housing 3 is fixed to the rear of the engine.

The crankshaft of the engine protrudes into the clutch housing 3, and the flywheel 5 is fixed to this crankshaft.

The tip of the clutch shaft 4 is loosely fitted into the flywheel 5, and a clutch device 6 is mounted on the rear surface of the flywheel 5.
is provided to connect and disconnect power. By depressing the clutch pedal 1c, the pedal lever 1
b. The clutch release bearing is slid back and forth by an arm, a wire, etc. via the horizontal rod 1a, and the clutch device 6 is connected and disconnected.

The rotation of the clutch shaft 4 is transmitted to the transmission device 13 via the universal joint 7.

The clutch pedal 1a of the present invention is pivotally supported on the side of the frame 10, and the step 2 is also fixed to the side of the frame 10. When this clutch pedal 1a is pressed down forcefully, the clutch device 6
A jamming condition occurs in the clutch, etc., and the clutch becomes disengaged and becomes unable to return.

In the present invention, a pedal stopper device for preventing this condition is constructed by fixing one small square projection as a pedal-side stopper 8 from the rear surface of the vertical rod 1b of the pedal rod.

In addition, the stopper 9 on the step side is similarly configured as a small rectangular projection at the front end of the step 2 as a partner to which the stopper 8 on the pedal side engages.

In FIGS. 5, 6, and 7, the structure of the steps is shown in a downward direction from step 2: the fixed body 2a of the upper limit cushion 11, the return spring engaging body 2b of the clutch pedal, and the safety switch. A fixed body 2c etc. are provided protrudingly, and in the present invention, the fixed body 2a of the upper limit cushion 11 is provided inside the front edge of the step, and the step stopper 9 is provided on the outside.
This is reinforced by providing .

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, unlike conventional clutch pedal stopper devices for passengers, there is no need to provide a stopper interposed between the clutch pedal at a position above the step on which the operator's foot is placed, and the clutch pedal. Since the stopper of the clutch pedal 1 can be constructed by providing two protrusions between the pedal rod 1b of the pedal 1 and the step 2, it can be simplified in terms of both cost and construction. It is something that

Secondly, unlike the stopper of the clutch pedal 1 in a conventional tractor, it is no longer necessary to have a sturdy stopper protruding long from the side of the transmission case, and a lightweight and simple stopper can be made.

Third, since the pedal-side stopper 8 protrudes rearward from the pedal rod 1b of the clutch pedal 1, if the stopper is long, the operator will not be able to place his or her foot on the step 2. This may be a hindrance in some cases, but
By providing the stopper 8 on the pedal side behind the part of the pedal vertical rod 1b that gradually approaches as the clutch pedal 1 is depressed, the stopper can be constructed with the minimum amount of protrusion, making it possible for the operator to place his/her foot. The stopper 8 on the side of the pedal does not become a hindrance even when the pedal is turned.

[Brief explanation of the drawing]

Figure 1 is a side view of the clutch device of an agricultural tractor, Figure 2 is a rear view of the clutch device, and Figure 3 is a rear view of the clutch device.
The figure is a side view of the step and clutch pedal section.
5, 6 and 7 are a plan view, a side view and a rear view of the step portion, and FIGS. 8 and 9 are a plan view and a side view of the clutch pedal. 1a...Pedal horizontal lever, 1b...Pedal vertical lever, 1
c...pedal, 2...step, 8...pedal stopper, 9...step stopper.

Claims (1)

[Scope of utility model registration request] A stopper 9 on the step side of the step 2 is protruded from the front of the step 2 where the vertical pedal rod 1b of the clutch pedal 1 moves up and down, and conversely, the vertical pedal rod 1b
A pedal stopper device for an agricultural tractor, characterized in that a stopper 8 on the pedal side protrudes from the rear surface of the pedal, and both stoppers are configured to engage at the front part of the step.