JPS6313530Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pedal coupling device for a vehicle such as a tractor.

Some vehicles, such as tractors, have their handlebars and driver's seat mounted front and rear so that they can be driven in either a forward or backward position. A brake pedal device, a clutch pedal device, a brake pedal device for rearward operation, and a clutch pedal device were provided on both sides of the vehicle body and distributed between the front and rear. However, since each pedal device for either forward operation or rearward operation is normally not in use,
Providing a pedal plate that is operated by stepping on it has the disadvantage that a lot of members are wasted and it gets in the way when not in use.

Therefore, in view of the above-mentioned problems, the present invention has a structure in which the pedal plate is detachably attached to the pedal arm, and can be attached to the front and rear pedal arms so as to be changeable.
It is designed to facilitate attachment and detachment, and its feature is that in a vehicle that is equipped with a pedal device for forward operation and a pedal device for rearward operation, the pedal device has a pedal arm and a pedal device for rearward operation. A pedal plate is detachably connected to the tip of the pedal arm, and an inner rod member is provided on either the tip of the pedal arm or the back side of the pedal plate, and an outer rod member is provided on the other side of the pedal arm and is detachably connected to the inner rod member. A fitted cylindrical outer rod member is provided, a recessed groove is provided at the fitting end of the inner rod member, and a notch recess is provided on the outer periphery of the intermediate portion, and the outer rod member is fitted into and detachably from the recessed groove. The present invention is characterized in that a shaft member is provided, and an engagement member that is detachably engaged with the notch recess is provided.

Hereinafter, a first embodiment of the present invention will be described based on the drawings. In FIGS. 1 to 4, reference numeral 1 designates an agricultural tractor in which the forward and backward movement posture of the driver can be freely changed, and a pair of left and right front wheels 2. , a pair of left and right rear wheels 3
This example shows a four-wheel drive type in which the front wheels 2 are driven by a propulsion shaft 4 and can be steered.

Reference numeral 5 denotes a vehicle body, which includes an engine 6 at the front and a transmission case 8 connected to this via a clutch housing 7.
A structure is shown in which these are connected in series, and a radiator is provided in front of the engine 6.

A bonnet 9 includes an upper bonnet 10, a side bonnet 11, and a safety cover 12 consisting of a side ventilation structure, and surrounds the engine 6, radiator, etc.

Reference numeral 13 denotes a hydraulic system for a working machine, which is provided on the rear upper surface of the vehicle body, and has a pair of left and right lift arms 14.

15 is a pair of left and right rear wheel fenders, and the hydraulic system 1
3, and a pair of left and right steps 17.
7 forms part of the driving device and is located behind the engine 6.

Reference numeral 18 denotes a rear bonnet, and is configured such that a seat 19 for reversing can be moved and fixed to the upper part of the bonnet. 20 is a steering wheel, which is connected to the common joint 2 through a mechanism in a relay box 21 on the side of the vehicle body 5.
2 to steer the front wheels 2, which are configured for forward movement.

A clutch pedal device 23 for forward operation is provided on the left side of the step 17, and brake pedal devices 24, 24 for forward operation are provided on the right side.

On the floor seat 16, a seat 19 for forward operation can be fixed, while brake pedal devices 25, 25 and clutch pedal device 26 for backward operation are provided, and a steering wheel 20 for reverse operation is provided.
The front wheels 2 can be detachably and detachably provided as shown by the imaginary lines in the figure, and the operating force guided to the relay box 21 via the reverse joint 27 steers the front wheels 2.
By changing the installation of the seat 19 and the steering wheel 20 in this manner, a forward-reverse convertible tractor with excellent workability is provided.

As shown in FIGS. 3 and 4, the clutch pedal device 23 for forward operation includes a pedal arm 28 rotatably supported around a horizontal axis, and a distal end, that is, an upper end of the pedal arm 28. The pedal plate 29 is detachably connected to the pedal plate 29. The pedal arm 28 is made of a solid round bar, and its upper end is an inner rod member 30, while a cylindrical outer member is provided on the back side of the pedal plate 29 so that it can be fitted onto the inner rod member 30 in a detachable manner. A rod member 31 is fixed by welding or the like. A substantially U-shaped groove 32 is formed at the upper end, ie, the fitting end, of the inner rod member 30, and a substantially V-shaped notch 33 is formed at the outer periphery of the intermediate portion. A shaft member 34 is fixed to the outer rod member 31, and the shaft member 34 is removably fitted into the groove 32 when the inner rod member 30 is fitted onto the outer rod member 30.
The engaging portion 3 engages in the notch recess 33 in a spring-biased manner and in a detachable manner when it is fitted into the groove 32
5 at one end and the other end of the plate spring member 36 (engaging member) is fixed to the outer periphery of the outer rod member 31 with bolts 37, screws, or the like.

Note that, although a spring pin is used as the shaft member 34 and is fitted into the insertion hole of the outer rod member 31, the pin member may be welded, and the present invention is not limited to the above. Further, the direction in which the grooves 32 are formed may be appropriately determined in consideration of the direction of the pedal plate 29.

On the other hand, the clutch pedal device 26 for backward operation has the same configuration as the clutch pedal device 23 for forward operation,
That is, the pedal arm is provided with an inner rod member 30 having a groove 32 and a notched recess 33.

Each of the brake pedal devices 24, 24, 25,
25 also includes a clutch pedal device 2 for forward operation.
3 and the clutch pedal device 26 for backward operation.

The first embodiment of the present invention is constructed as described above, and as shown by the imaginary lines in FIGS. 1 and 2,
When the mounting position of the steering wheel 20 and seat 19 is changed from forward motion to reverse motion, the clutch pedal device 23 for forward operation and the pedal plate 29 of each brake pedal device 24, 24 are removed, and the respective pedal plates 29 for rearward operation are removed. It may be connected to the respective pedal arms of the clutch pedal device 26 and the brake pedal devices 25, 25. To remove the pedal plate 29, it is sufficient to pull the pedal plate 29 upward in the axial direction of the pedal arm 28 against the elastic engagement force between the notch recess 33 and the leaf spring member 36. When installing, the outer rod member 31 is fitted onto the inner rod member 30 of the pedal arm 28, and the groove 32 and the shaft member 34 are fitted, so that the notch recess 33 and the leaf spring material 36 are engaged. As described above, the pedal plate 29 can be easily attached and removed by inserting and removing the pedal plate 29 into and out of the pedal arm 28. In addition, the groove 32 and the shaft member 3
4 are fitted, so there is no risk that the pedal plate 29 will rotate around the axis of the pedal arm 28.
Normal posture is always maintained. Furthermore, the notch recess 3
3 and the engagement portion 35 of the leaf spring material 36, the pedal plate 29 can be prevented from wobbling, and there is no fear that the engagement will be released inadvertently. In addition, each pedal device 23, 2 which is in an unused state
4 and 24 are only the pedal arm 28, which eliminates waste of members and does not become bulky or obstructive. Moreover, it has a simple configuration and is easy to manufacture.

5 to 7 show the second embodiment,
The groove 40 of the inner rod member 39 of the pedal arm 38 is
It is formed deeper and protrudes upward from the shaft member 43 when the outer rod member 42 of the pedal plate 41 is fitted to the outside,
A spring 44 inserted and held within the outer rod member 42
It is configured to press. Also, the engaging member 4
5 is rotatably supported on one side of the outer rod member 42 as shown by the imaginary line in FIG. When the engaging member 45 is clamped by the receiving metal fitting 46, the engaging member 45 is inserted through the notch groove 47 of the outer rod member 42.
It is configured to engage with the notch recess 48 of the inner rod member 39. Therefore, in order to remove the pedal plate 41 from the pedal arm 38, it is sufficient to disengage the engagement member 45 and the receiving fitting 46 and pull it out. Moreover, when attaching, it is sufficient to fit the engaging member 45 outwardly against the spring 44 and to make the engaging member 45 be clamped by the receiving fitting 46, and the attaching and detaching operation is easy. In this attached state, the elastic force of the spring 44 causes the pedal plate 4 to
1 is biased upward, so wobbling can be prevented. Moreover, since the engaging member is held by the elastic force of the receiving metal fitting 46, there is no risk of it coming off inadvertently.

In each of the above embodiments, the inner rod members 30, 39
is provided on the pedal arm 28, 38 side, and the outer rod member 3
1 and 42 are provided on the pedal plate 29 and 41 side, but the inner rod members 30 and 39 are provided on the pedal plate 2
9 and 41, and the outer rod members 31 and 42 may be provided on the pedal arms 28 and 38 sides.
Moreover, the inner rod members 30 and 39 may be constructed from cylindrical members.

In the present invention, the pedal device includes a pedal arm and a pedal plate detachably connected to the tip of the pedal arm, and an inner rod member is provided on either the tip of the pedal arm or the back side of the pedal plate,
On the other hand, a cylindrical outer rod member is provided which is removably fitted onto the inner rod member, a groove and a notch are provided in the inner rod member, and a shaft member is fitted into the groove in the outer rod member. , and an engaging member that engages with the notched recess, the pedal plate can be easily attached and detached by attaching and removing the pedal plate, and the pedal plate can be easily attached and detached by fitting the groove and the shaft member. is always maintained in a normal posture, and there is no risk of the pedal plate being accidentally disengaged due to the engagement between the notch recess and the engaging member.
Furthermore, since the pedal plate is configured to be detachable, the pedal plate on the side that is not in use is unnecessary, and waste of members can be avoided, and the pedal plate is not bulky and does not get in the way. Moreover, it has the advantage of having a simple configuration and being easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing the first embodiment of the present invention, Fig. 2 is a partial plan view of Fig. 1, and Fig. 3 is a partial plan view of the first embodiment of the present invention.
4 is a rear view showing the state in which the pedal plate in FIG. 3 is removed, FIG. 5 is a side view of the main part showing the second embodiment, and FIG. 6 is a cross-sectional view taken along the - line in FIG. 5. 7 is a view taken along the - line in FIG. 6. 1... Tractor, 23, 26... Clutch pedal device, 24, 25... Brake pedal device, 2
8...Pedal arm, 29...Pedal board, 30...
... Inner rod member, 31 ... Outer rod member, 32 ... Concave groove,
33... Notch recess, 34... Shaft member, 36... Leaf spring material (engaging member).

Claims (1)

[Scope of utility model registration request] In a vehicle equipped with a pedal device for forward operation and a pedal device for rearward operation, the pedal device includes a pedal arm and a pedal plate detachably connected to a distal end of the pedal arm, An inner rod member is provided on either the inner rod member or the back side of the pedal plate, and a cylindrical outer rod member that is removably fitted onto the inner rod member is provided on the other side, and at the fitting end of the inner rod member. A groove is provided and a notched recess is provided on the outer periphery of the intermediate portion, and a shaft member is provided in the outer rod member and is removably fitted into the groove, and is removably engaged with the notched recess. A pedal coupling device characterized in that an engagement member is provided.