JPH10219756A - Cover structure of operating pedal in working car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a malfunction by holding an open-close cover bringing an operating pedal to an operable or inoperable state in at least an open posture by a magnet body. SOLUTION: A pedal cover 11 rocked through a hinge 12 is installed to the operating pedal 10 for an attachment mounted on the floor section 9 of a driver's seat. When the front 11a of the over 11 is erected to the floor 9, the cover 11 covers the pedal stepping surface 10a of the pedal 10 and is brought to a closed posture, and the pedal 10 is brought to an inoperable state. When the front 11a is brought down to the floor 9, the cover 11 is slipped off from the stepping surface 10a and brought to an open posture, and the pedal 10 is brought to an operable state. A magnet 13 is set up onto the floor 9, and the cover 11 in the open posture is attracted and held to the magnet 13. The cover 11 is erected by force larger than the magnetic force of the magnet 13 when the cover 11 is brought to the closed posture. Accordingly, the closed posture of the pedeal cover by the rocking of the pedal cover in the open posture during operation on a moor, etc., can be avoided, and operationability can be improved because no special retaining work is required.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a cover structure for an operation pedal in a working vehicle such as a hydraulic shovel or a tractor.

[0002]

2. Description of the Related Art In general, a work vehicle of this type may be provided with an option selected from a plurality of attachments as an option. In such a case, an operation pedal may be provided to operate the attachment. When such an operation pedal is not attached or not used, the operation pedal must be in an inoperable state (locked state) so as not to be operated by mistake. Conventionally, as shown in FIG. One in which the pedal 10 is closed by a pedal cover 15 is known.

[0003]

The pedal cover 15 is swingably hinged to the frame via the hinge 12, and the pedal cover 15 has an open position for opening the operation pedal 10 in an operable state, and an inoperable state. Although the closed state is changed to a closed state in which the state is closed, the fact that the two positions are maintained by moving the center of gravity of the pedal cover 15 itself. For this reason, in a machine such as a construction machine that frequently performs work on rough or sloping terrain, there is a problem that the pedal cover 15 is inadvertently swung due to vibration or inclination of the body to change the posture. It is strongly required that the pedal cover 15 be prevented from being in the closed position when using the pedal. Therefore, it is suggested that a locking device be separately provided to avoid inadvertent swinging of the cover. However, it is necessary to engage and disengage the locking device every time the cover position is changed, resulting in poor operability. There is a problem and here is the problem that the present invention seeks to solve.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve these problems in view of the above-mentioned circumstances. A work vehicle including a cover that is capable of changing its shape between an open position and a closed position that closes in an inoperable state, is provided with a magnetic body for holding the cover at least in the open position. Thus, there is no inconvenience that the cover is in the closed position during operation of the operation pedal.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. In the drawings, reference numeral 1 denotes a hydraulic excavator. The hydraulic excavator 1 includes a crawler-type lower traveling body 2, an upper revolving body 3 rotatably supported above the lower traveling body 2, and a front portion of the upper revolving body 3. The basic configuration is the same as that of the related art, for example, it is composed of various parts such as the front attachment 4 attached to the horn.

The upper revolving unit 3 is provided with a cockpit 5 on the front left side, a fuel tank 6 on the right side of the cockpit 5 and a hydraulic oil tank 7 on the rear side. Further, an engine room 8 is arranged at the rear. An operation pedal 10 for an attachment (not shown) is provided on the floor 9 in front of the cockpit 5 so as to be freely depressed.

On the other hand, reference numeral 11 denotes a pedal cover for closing the operation pedal 10. The pedal cover 11 is formed in a rectangular shape with a rear surface and a lower surface cut out in a closed posture described later (the pedal cover is a present embodiment). Is not rectangular like
Needless to say, various shapes such as an L-shape can be adopted if necessary), and the lower end of the front surface 11a is hinged to the front of the operation pedal 10 of the floor portion 9. That is, one piece 12 a of the hinge 12 is fixed to the floor portion 9 in front of the operation pedal 10.
The lower end of the front surface 11a is fixed to the other piece 12b. Then, the pedal cover 11 swings via the hinge 12, and the front surface 11 a stands up with respect to the floor portion 9, closes to cover the pedal depression surface 10 a of the operation pedal 10, and the operation pedal 10 is inoperable. And the open position in which the front surface 11a falls forward with respect to the floor portion 9 and the front surface 11a is disengaged from the pedal depression surface 10a of the operation pedal 10 so that the operation pedal 10 can be operated. It is set to appear.

Further, the pedal cover 1 is provided on the floor 9.
The magnet 13 is fixed in a protruding state so as to come into contact with the front surface 11a of the pedal cover in the open position of 1.
The pedal cover 11 is set so as to be attracted by the magnet 13 in the open position and held in this state. Then, in order to bring the pedal cover 11 into the closed position, the operator only needs to raise the pedal cover 11 with a force larger than the magnetic force of the magnet 13.

In the embodiment of the present invention configured as described above, when the operator wants to operate the operation pedal 10 by attaching the attachment to the excavator 1,
When the operation pedal 10 is swung through the hinge 12 and the pedal cover 11 is changed from the closed position to the open position, the operation is performed. Is attracted by the magnet 13 fixed to the floor portion 9 and is held in the open position. As a result, as in the case where the conventional pedal cover is held in the open position by its own weight, the pedal cover in the open position changes its posture to the closed position even when working on a rough or sloping land. Inconvenience can be avoided.

Furthermore, in this case, the pedal cover 11 is held in the closed position by a magnet 13 fixed to the floor portion 9 instead of being held by a locking tool requiring a special operation. Therefore, the operator does not need to perform any special locking-unlocking operation to change the posture between the open posture and the closed posture, and the operability is good.

It is needless to say that the present invention is not limited to the above embodiment, and the magnet holding the pedal cover may be provided not on the floor portion side but on the pedal cover side as in the above embodiment. . Further, in the above embodiment, the pedal cover holds only the open position. However, the pedal cover may be configured to hold both the open position and the closed position. However, as shown in the second embodiment of FIG. 3, a magnet 14 is provided on both sides of the pedal cover 11 so as to exhibit an attraction function. But,
In the open position, the pedal cover 11 may be held in the open position by sucking the floor unit 9 and the pedal cover 11 may be held in the closed position by sucking the operation pedal 10 in the closed position.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a hydraulic shovel.

FIG. 2 is a side view of the operation pedal unit.

FIG. 3 is a side view of an operation pedal unit according to the second embodiment.

FIG. 4 is a side view of an operation pedal section in a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 hydraulic excavator 2 undercarriage 5 driver's seat 9 floor 10 operation pedal 10a pedal depression surface 11 pedal cover 11a front surface 12 hinge 13 magnet 14 magnet

Claims (1)

[Claims] 1. A work vehicle comprising an operation pedal having a cover which can be freely changed between an open position for opening the operation pedal in an operable state and a closed position for closing the operation pedal in an inoperable state. A cover structure of an operation pedal in a work vehicle provided with a magnetic body for holding the posture.