JPH08322323A - Foot control switch for electric working vehicle - Google Patents

Abstract

PURPOSE: To ensure operations such as the advancing, retreating and turning of an electric working vehicle to be conducted properly by foot while continuing e.g. handwork under a shelf. CONSTITUTION: This foot control switch 10b for an electric working vehicle is a device to conduct operations such as the advancing, retreating and turning of the vehicle body, being provided at a position of the tiptoe S of a relevant operator, and having a switch changeover lever 13b equipped with an upper holding part 12b to be pushed up with the tiptoe S and a lower holding part 12b to be pushed down and supported on a vehicle body floor in a vertically shakable fashion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foot operation switch for an electric work vehicle for under-shelf work such as pruning, pollination, fruit picking, bagging and harvesting work in orchards such as vineyards and pear gardens. The present invention is characterized in that it is possible to perform driving operations such as forward, backward, and turning of a vehicle body by a foot while continuing manual work under shelves without erroneous operation.

[0002]

2. Description of the Related Art Various kinds of work conventionally carried out in orchards such as vineyards and pear gardens, such as pruning, pollination, fruit picking, bagging and harvesting, are all manual operations under shelves. , The worker faces the face upward, raises his hands above the shoulders, and is in an unreasonable work posture, such as being in the middle waist, which puts a heavy burden on the worker's neck, shoulders, waist and legs. It took a lot of work and was extremely fatigued.

Therefore, the physical burden on the operator is eliminated,
Various electric work vehicles and the like have been provided to reduce the degree of fatigue (see, for example, Japanese Utility Model Laid-Open No. 6-33407). In each of these under-the-shelf work vehicles, while the operator is sitting on the seat provided on the upper surface of the vehicle body floor, the under-the-shelf work vehicle can continue the manual work under the shelves and perform driving operations such as forward, backward, and turning of the vehicle. In addition to the hand switch,
Various foot control switches are provided on the vehicle floor. Conventionally, those foot operation switches have been exclusively made up of stepping seesaw pedals or a plurality of push button switches.

[0004]

As described above, when carrying out driving operations such as forward, backward and turning of the vehicle body while continuing the manual operation under the shelves, the operator faces up and hands over the shoulders. There is a problem that an erroneous operation is likely to be performed because the seesaw pedal or one of a plurality of push button switches provided as necessary is stepped on with the foot in the above state.

That is, in the case of a seesaw type pedal,
In some cases, the direction of depression was incorrect, or the position of a push button was incorrect. Such an erroneous operation causes a runaway and is dangerous.

The present invention has been made in view of the above circumstances. It is possible to prevent erroneous operation of driving operations such as forward, backward and turning of the vehicle body by the legs while continuing the manual work under shelves, and to ensure safety. An object of the present invention is to provide a foot operation switch for an electric work vehicle that can improve work efficiency.

[0007]

In order to solve the above-mentioned problems, the present invention is a foot operation switch in an electric work vehicle for performing driving operations such as forward movement, backward movement and turning of a vehicle body, and is provided at a toe position of a driver. The switch switching lever is provided on the vehicle body floor so as to be swingable up and down and provided with an upper locking portion which is pushed up by the driver's toes and a lower locking portion which is pushed down.

[0008]

A foot operating switch 10a for an electric working vehicle according to the present invention,
In 10b, the driver uses the toe S to switch the switch lever 13
The upper and lower engaging portions 12a and 12b formed on a and 13b are pushed and used.

For example, as shown in the drawing, when the switch changeover levers 13a and 13b are pushed down by the toes S, the forward movement is performed, when the switch changeover levers 13a and 13b are pushed upward, the backward movement is performed, and the braking is performed at the neutral position.

That is, the switch changeover levers 13a, 1
For example, the rotating shafts 15a and 15b are rotated by 3b, and electrical contact switching such as a toggle switch for controlling the operation of the electric motor is performed in the switch built-in portions 14a and 14b.

As described above, since the foot operation switch of the present invention has no uncertainties in the switching operation, the predetermined switching operation will not be erroneous, and therefore runaway or the like due to erroneous operation can be prevented and safety can be secured. The work efficiency can be improved.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic plan view showing an example of an electric work vehicle equipped with a foot operation switch of the present embodiment, and FIG. 2 is a left side view thereof.
FIG. 3 is an enlarged perspective view of the foot operation switch section.

1 and 2 show an under-shelf work vehicle as an example of an electric work vehicle provided with a foot operation switch according to the present embodiment. That is, the drive wheels 2 that can be independently controlled to move forward and backward on both left and right sides below the front part of the vehicle body floor 1.
a and 2b are provided, and one caster-type directional wheel 3 is provided substantially in the center below the rear portion of the vehicle body floor 1. Of course, the drive wheels 2a and 2b and the directional wheel 3 may be provided in the front-rear direction, or two directional wheels 3 may be provided on both the left and right sides. In the figure, 4 is a battery as a power source.

The drive wheels 2a and 2b respectively have direct-current motors M1 and M2 with a drive-release brake that are driven by the battery 4 on their axles, and are independently forward and backward (forward). Reverse rotation) and braking control are possible.

In the figure, reference numeral 6 denotes a driver's (worker's) seat, which is not shown in detail, but a support cylinder supporting columns 5a, 5b connected to the lower surface thereof at substantially the center of the vehicle body floor 1. The height is freely adjustable by penetrating through 7.

Further, reference numeral 8 is a hand switch, which is provided on a post 9 which is close to one side of the seat 6, and is, for example, a multi-directional operation switch, which moves forward and backward as well as the DC motors M1, M2 and The drive wheels 2a and 2b are controlled to have a steering operation function similar to that of a normal steering wheel. Further, one drive wheel 2a is rotated in the forward direction and the other drive wheel 2b is stopped or moved in the backward direction. It has a function of freely controlling the traveling of the vehicle body such as rotation control.

In the drawings, 10a and 10b are embodiments of the foot operation switch according to the present invention, in which the driver's toes S are easily placed on the left and right sides of the front part of the upper surface of the vehicle body floor 1,
It is provided so as to correspond to the left and right drive wheels 2a and 2b, respectively, and is configured such that the driver can vertically move the toe S.

That is, the foot operation switches 10a, 1
0b is for controlling the rotation of the drive wheel 2a or 2b on each side by the left and right feet when the operator is working and both hands are occupied and the hand switch 8 cannot be operated. Upper locking part 1 pushed up by the toe S of the person
2a ₁ , 12b ₁ and the lower locking portion 12a ₂ , which is pushed down,
Vertically swingably supported by a box-like switch switching lever 13a on the vehicle body floor 1 comprises a 12b _2, 13b
have.

Then, the driver inserts the toe S between the upper and lower engaging portions 12a and 12b, and pushes the left and right switch switching levers 13a and 13b downward, for example, to move forward and upward. The left and right drive wheels 2a and 2b are respectively controlled so that when they are raised, they can run backward and can be braked at a neutral position.

Specifically, for example, a switch built-in portion 14 in which toggle switches (not shown) and the like are arranged at the toe S positions of the driver on both sides of the front portion of the upper surface of the vehicle body floor 1 respectively.
a and 14b are raised, and the switch built-in portions 14a and 14
The box-shaped switch switching levers 13a and 13b having the vertical locking portions 12a and 12b with which the toe S of the driver abuts are rotatably supported on the rotary shafts 15a and 15b derived from b. Switch changeover levers 13a, 13b
It is configured such that the electrical contact switching of the toggle switch or the like can be performed in the switch built-in portions 14a and 14b via the rotating shafts 15a and 15b by the vertical movement operation of.

However, the contact switching of the switch provided in the vertical swing path is directly performed by the vertical swing motion of the switch switching levers 13a and 13b without using the rotary shafts 15a and 15b. You may comprise.

In the illustrated example, the switch switching levers 13a and 13b are formed in a substantially box shape with the driver side opened, but may be formed with upper and lower plates with both left and right sides opened.

The foot operation switches 10a, 10 of the above embodiment
b can be steered similarly to the hand switch 8 by a vertical swinging operation. For example, the left drive wheel 2a is rotated in the forward direction and the right drive wheel 2b is stopped or rotated in the reverse direction. By controlling the movement, it is possible to turn clockwise on the spot.

In the figure, 11a and 11b are separately provided in-situ turning switches, and the DC motors M1 and M2 and the drive wheels 2 are operated by pushing one of them with a foot.
a and 2b are automatically controlled so that a right turn or a left turn can be performed on the spot without changing the work position by one-touch operation.

As described above, the foot operation switches 10a and 10b of this embodiment are provided with the upper and lower engaging portions 12 with which the toe S abuts.
Since the driver swings the a and 12b up and down with the toe S, there are no uncertainties, the operation is clear compared to the switch control by the seesaw pedal, and the position is different from that of the push button without mistake. In addition, runaway, etc. are prevented and safety is secured, and work efficiency is improved.

[0026]

According to the present invention, it is possible to effectively prevent erroneous operation of driving operation such as forward and backward movements of the vehicle body and turning on the spot due to the feet while continuing the manual work under shelves and the like, and to ensure safety. Work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an example of an under-shelf work vehicle provided with a foot operation switch according to an embodiment of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is an enlarged perspective view of a foot operation switch section.

[Explanation of symbols]

1 Body Floor 10a Foot Operation Switch 10b Foot Operation Switch 12a ₁ , 12b ₁ Upper Locking Part 12a ₂ , 12b ₂ Lower Locking Part 13a Switch Change Lever 13b Switch Change Lever S Toe

Claims (1)

[Claims] 1. Foot operating switches 10a, 10 in an electric work vehicle for performing driving operations such as forward, backward and turning of a vehicle body.
b, the upper locking portion (12a ₁ , which is provided at the driver's toe (S) position and is pushed up by the driver's toe (S)).
12b ₁ ) and the lower locking portions (12a ₂ , 12)
b ₂ ), a foot operation switch for an electric work vehicle, having switch switch levers (13a, 13b) supported on the vehicle body floor (1) so as to be vertically swingable.