KR101415499B1 - Electronic steering device for construction equipment - Google Patents

Abstract

The present invention discloses an electric steering apparatus for construction equipment.

An electric steering system for a construction equipment according to an embodiment of the present invention includes an armrest disposed on an operator's side of a driving room of a construction equipment so as to be placed on an arm and a handrest placed on the front of the armrest, Wherein the first point (21) of the surface on which the hand is touched is formed to be the highest, and the second point (22) of the surface on which the hand is touched is formed in the shape of a convexly curved upper surface, The third point 23 of the surface of the finger which is touched by the tip of the finger is formed lower than the second point 22 in the forward direction and the fourth point 23 of the surface on the side on which the wrist comes in contact is formed lower than the first point 21, (24) has a hand pedestal (20) lower than the first point (21) and higher than the second point (22), a first switch (21) disposed at the first point (21) 30, a first switch 30, A second switch 31 for controlling the function of the steering device on / off, and a third switch 32 disposed at the third point 23 for controlling the forward and backward movement of the construction equipment.

Construction equipment, construction machinery, wheel loaders, excavators, electric steering

Description

ELECTRONIC STEERING DEVICE FOR CONSTRUCTION EQUIPMENT

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric steering apparatus for a construction equipment, and more particularly, to an electric steering apparatus for a construction equipment capable of electrically controlling forward and backward movement and left and right steering of a construction equipment.

Generally, construction equipment is used for excavating or transporting soil and rock, for example, wheel loaders, excavators and the like.

The above-described construction equipment generally controls the various control devices disposed in the cab to perform front-back travel, direction change, excavation, and transportation.

The wheel loader 100 will be described with reference to FIG. 7 as an example of the construction equipment as described above.

7 is a schematic illustration of a wheel loader 100 as an example of construction equipment.

7, the wheel loader 100 includes a front frame 110 and a rear frame 120 connected by a plurality of joints 131 and 132, and the front frame 110 and the rear frame 120 One steering cylinder is disposed on each of the right and left sides, and the direction of the front frame 110 is changed by driving the rod 140 of the steering cylinder.

A boom 170 is disposed in front of the front frame 110 so as to be angularly rotatable in an elevating direction and a boom cylinder 170 is provided on the lower side of the boom 170 and the front frame 110, And the boom cylinder 171 drives the above-described boom 170 to rotate at an elevating angle.

A bucket 180 is rotatably mounted on the outer end of the boom 170 and a bucket cylinder 181 is disposed between the rear of the bucket 180 and the front frame 110 to support the bucket 180, To be angularly rotated forward and backward.

An engine room 150 in which an engine is mounted and an operation room 160 in which an operator operates the construction equipment are disposed above the rear frame 120. In the front frame 110 and the rear frame 120, The wheels 191 and 192 are disposed.

When the wheel loader 100 is operated as described above, the forward / backward control of the wheel loader 100, the lateral direction switching control, and the angular rotation control of the boom 170 and the bucket 180 are basically performed.

The boom 170 and the bucket 180 are generally provided with a joystick type lever and controlled by the operation of the lever. The forward / backward control and the left / right direction switching control of the wheel loader 100 are controlled by the steering wheel , Accelerator pedal stroke and brake pedal stroke.

On the other hand, an electric steering apparatus is provided so that when the wheel loader 100 performs a substantial operation, for example, in excavation or upset operation, it can be operated by an electric control.

The conventional electric steering apparatus is provided with a first switch for switching the traveling direction of the wheel loader 100 and a second switch for moving the wheel loader 100 forward or backward apart from each other, There is a problem that can not be done.

In particular, there is a problem that smooth steering control can be performed only if a long experience and know-how are required to know the steering of the wheel loader 100 intuitively.

On the other hand, the first and second switches described above are not controlled naturally because they are designed by mechanical arrangement from the viewpoint of design convenience without considering the shape and movement of the human hand, thereby increasing the fatigue of the hands There is a problem.

Accordingly, the technical problem to be solved by the present invention is to improve the electric steering device of construction equipment, and it is an object of the present invention to provide an electric steering device for a construction equipment, A steering device is provided.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

According to an aspect of the present invention, there is provided an electric steering system for a construction equipment, comprising: an armrest disposed next to a driver's seat in a driving room of a construction equipment and capable of being mounted on an arm; The electric steering system of the construction equipment according to claim 1, wherein the upper surface of the first steering wheel is formed in a convexly curved shape, The second point of the surface is formed to be lower than the first point, the third point of the surface of the fingertip contacting the fingertip is formed lower than the second point forward, and the fourth point of the surface of the finger- A hand pedestal lower than the first point and higher than the second point; A first switch disposed at the first point for controlling the lateral directional switching of the construction equipment; A second switch disposed on the front side of the first switch for on / off controlling the function of the electric steering apparatus; And a third switch disposed at the third point for controlling the forward and backward movement of the construction equipment.

Further, a fourth switch disposed outside the third switch (on the side of the ring finger) for executing a kick-down function may be further arranged.

Also, the third point may be a concave shaped fifth point.

The details of other embodiments are included in the detailed description and drawings.

In the electric steering apparatus for a construction equipment according to the present invention, various switches necessary for control are formed to be suitable for human hand movements, thereby reducing the fatigue of the hand and more particularly moving the fingers more naturally .

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

Like reference numerals refer to like elements throughout the specification.

Hereinafter, an electric steering apparatus for a construction equipment according to an embodiment of the present invention and other embodiments will be described with reference to FIGS. 1 to 6. FIG.

FIG. 1 is an exemplary view for explaining an electric steering apparatus for a construction equipment according to an embodiment of the present invention, FIG. 2 is an exemplary view for explaining an electric steering apparatus for a construction equipment according to another embodiment of the present invention And FIGS. 3 and 4 are a plan view and a front view illustrating the electric steering apparatus of FIG. 2. FIG.

The contours or contour lines shown in Figs. 1 and 2 are shown for the purpose of describing an electric steering apparatus of one embodiment or another embodiment of the present invention, and such contour or contour line is not limited to an absolute point.

As shown in Figs. 1 and 2, a hand pedestal 20 is disposed in front of the armrest 10, and a plurality of switches are disposed in the hand pedestal 20. As shown in Fig.

The armrest 10 described above is disposed on the left side of the driver's seat so that the left arm can be laid on the driver's seat. However, the present invention is not limited thereto.

The hand support 20 described above is shaped into a shape corresponding to the palm of the hand in a state in which the hand is depressed and will be described in more detail with reference to FIGS. 2 to 6 attached hereto.

The upper surface of the hand support 20 is formed as a curved surface convexly curved upward and forms a shape suitable for the hand and hand of the human body by forming the height of the hand side, the palm side, the finger side, and the wrist side, So as to conform to the side.

In other words, the portion touching the hand is the highest point as the first point 21, and the hand side corresponds to the second point 22 lower than the first point 21.

Further, the finger corresponds to the third point 23 lowered toward the front side, and the third point 23 is lower than the second point 22.

Further, the wrist side corresponds to the fourth point 24 lower than the first point 21 and higher than the second point 22.

On the other hand, as shown in Fig. 2, the third point 23 may be recessed to form the fifth point 25.

The above-mentioned fifth point 25 is such that when the finger is naturally bent, the fingertip portion is naturally laid.

As described above, it can be understood that the hand rest 20 is formed in a shape corresponding to the nose shape naturally without applying excessive force to the hand.

The first switch 30 is disposed at a position corresponding to the first point 21 between the thumb H1 and the detection H2. As a lever switch or a joystick.

That is, as shown in Fig. 7, the projecting portion of the first switch 30 is sandwiched between the thumb H1 and the detector H2, and the first switch 30 is controlled by moving the first switch 30 in the left-right direction.

By the control of the above-described first switch 30, the construction equipment is turned in the left-right direction.

The second switch 31 is disposed in front of the above-described first switch 30 (position corresponding to the end node of the detection H3), and the second switch 31 switches the function of the electric- Off (On / Off).

That is, if the second switch 31 is operated, the construction equipment can be moved under the control of the switch disposed in the electric steering device. If the second switch 31 is operated again, the function of the electric steering device is turned off, At this time, the running and the turning of the construction equipment are controlled by controlling the steering wheel, the accelerator pedal and the brake pedal.

The third switch 32 is disposed at a position of the third point 23 or the fifth point 25 (the end node of the stop H3 and the second node) Controls the back and forth of the construction equipment.

In particular, when a force is applied to the end node of the stop (H3) and pressure is applied to the third switch (32), the construction equipment advances, and when the second node or stoppage of the stop is exerted, If the third switch 32 is not applied, the construction equipment is stopped.

The fourth switch 33 is disposed outside the third switch 32 (the position corresponding to the end node of the ring finger H4), and the fourth switch 33 performs a kick-down function.

When the above-described fourth switch 33 is operated, the operation is performed when a large force is required while the speed is low immediately after the high-speed travel.

For example, when the construction equipment is running, the speed rises rapidly at the moment of touching the soil or sand while traveling at high speed in the second stage. At this time, when the fourth switch (33) is operated, the speed is decreased by 1 stage, It will put a great deal of force on the running of construction equipment.

That is, when the wheel loader (100) is taken as an example, when the soil is piled up at the front and when the soil is dumped, the speed approaches rapidly when the bucket reaches the dirt and approaches the dirt at a high speed. In order to dig the dirt, At this moment, the fourth switch 33 is operated to kick down.

Then, when the fourth switch 33 is operated again, the original two-stage gear is returned.

As described above, the electric steering apparatus of the construction equipment according to the embodiment of the present invention or other embodiments can raise the hands naturally, and in particular, by arranging the switch at the position corresponding to the hand movements, It can be controlled.

In addition, the hand can be raised naturally, and the hand motion blood can be reduced to natural blood.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. will be.

It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive, the scope of the invention being indicated by the appended claims, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

Wheel loader, excavator, etc. Especially, it is possible to reduce the fatigue of the hand by making the hand move more naturally when controlling the construction equipment, and by arranging it in a form corresponding to the shape of the hand, the hand can be laid naturally.

1 is an exemplary view for explaining an electric steering apparatus for a construction equipment according to an embodiment of the present invention.

2 is an exemplary view for explaining an electric steering apparatus for a construction equipment according to another embodiment of the present invention.

Figs. 3 and 4 are a plan view and a front view view for explaining the electric steering apparatus of Fig. 2;

5 is a sectional view taken along the line A-A in Fig.

6 is a sectional view taken along the line B-B in Fig.

7 is an exemplary view for explaining an example of using an electric steering apparatus of a construction equipment according to an embodiment of the present invention.

8 is an exemplary view for explaining an example of a construction equipment.

DESCRIPTION OF THE REFERENCE NUMERALS (S)

10: Armrest 20: Hand rest

21, 22, 23, 24, 25: first, second, third, fourth and fifth points

30, 31, 32, 33: first, second, third and fourth switches

100: wheel-loader

110: front frame 120: rear frame

131, 132: joint 140: rod of steering cylinder

150: engine room 160: driving room

170: Boom 171: Boom cylinder

180: Bucket 181: Bucket cylinder

191, 192: wheel

Claims (3)

(10) disposed on the side of a driver's seat of a driving room of a construction equipment and capable of placing an arm, and a hand base (20) disposed on the front of the armrest (10) In the electric steering apparatus of the present invention, The first point (21) of the surface on which the hand is touched is formed to be the highest and the second point (22) of the surface to which the hand is touched is lower than the first point (21) And the third point 23 of the surface of the fingertip touching end is formed lower than the second point 22 toward the front and the fourth point 24 of the surface on the side of the wrist is located at the first point 21) and is formed higher than the second point (22); A first switch (30) disposed at the first point (21) for controlling the lateral directional switching of the construction equipment; A second switch 31 disposed on the front side of the first switch 30 for on / off controlling the function of the electric steering device; And A third switch (32) arranged at the third point (23) and provided as a seesaw type switch operated in forward and backward directions to control the forward and backward movement of the construction equipment; Lt; / RTI > The first switch 30 is provided as a stick-type switch operated in the left-right direction with respect to the hand rest 20 so as to be perpendicularly crossed with the operating direction of the third switch 32 Electric steering of construction equipment. The method according to claim 1, And a fourth switch (33) disposed outside the third switch (32) to perform a kick-down function. The method according to claim 1, And the third point is a fifth point (25) concavely formed.

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