JPH06191799A - Lever type operating device in cargo handling work vehicle and lever type operating device - Google Patents

Abstract

PURPOSE:To provide a lever type operating device in a cargo handling work vehicle wherein fatigue of a wrist of a worker can be eliminated and further running operation can be performed by the worker in a stable condition by performing the running operation with the tip of a finger. CONSTITUTION:In an operating device 1 in an order picker provided with a running lever for performing running operation of a vehicle, a grip 10, which can be grasped by a worker, is arranged in the operating device 1 to also provide the running lever 8 in the operating device 1 in the vicinity of the grip 10, and in a point end of this running lever 8, a finger inserting member 9, formed with a finger inserting hole 9a for inserting a finger of a hand for grasping the grip 10, is provided. By this constitution, the running lever 8 can be operated with the tip of the finger by the worker in a condition that the grip 10 is grasped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever type operating device, for example, a lever type operating device used in a cargo handling vehicle.

[0002]

2. Description of the Related Art As a conventional cargo handling vehicle, for example, FIG.
The order picker 60 shown in 0 is mentioned. The order picker 60 includes wheels 61 and can be moved forward and backward by a motor (not shown). Further, in the order picker 60, a platform 62 and a fork 63 can be integrally lifted and lowered by a hydraulic cylinder (not shown). A control panel 50 as shown in FIG. 9 is provided on the front surface of the platform 62. Then, the worker P operates the control panel 50 in the platform 62 to move the order picker 60.
Drive control.

The control panel 50 will be described. As shown in FIG.
A steering wheel 51 is rotatably supported on the left side of 0. And this steering wheel 5
The wheel 61 is rotated by the turning operation of 1, and the order picker 60 is steered. A steering handle 5 for rotating the steering wheel 51 is provided near the outer peripheral edge of the steering wheel 51.
2 is attached.

As shown in FIG. 9, a square box-shaped switch box 53 is rotatably provided on the right side surface of the control panel 50, and the switch box 53 rotates about a center line L1. It is like this. On the upper surface of the switch box 53, there are provided a raising switch 54 for raising the platform 62 and the fork 63, a lowering switch 55 for lowering the platform 62 and the fork 63, and a horn switch 56 for generating a warning sound. On the further right side surface of the switch box 53, a traveling grip 57 extending on the rotation center line L1 of the switch box 53.
Is fixed.

Then, the operator P steers the order picker 60 by gripping the steering handle 52 with his left hand and rotating the steering wheel 51. Further, the worker P uses the right hand to grip the traveling grip 57.
The vehicle can be moved forward by gripping and turning it forward (in the direction of arrow A in FIG. 9). Further, the vehicle can be moved backward by turning the traveling grip 57 forward (in the direction of arrow B in FIG. 9).

Further, since the traveling grip 57 and the switch box 53 rotate integrally, the traveling grip 5
While the vehicle is traveling based on the turning operation of 7, the up switch 54, the down switch 55, and the horn switch 56 can be operated with the thumb or forefinger of the right hand.

[0007]

However, in the grip type operation device in the conventional order picker 60 described above,
When moving the vehicle forward, it is necessary to keep the traveling grip 57 turned forward, and when moving the vehicle backward, it is necessary to keep the traveling grip 57 turned backward.

Therefore, there is a problem that the wrist of the worker P is fatigued especially when traveling a long distance. Further, although the traveling grip 57 also plays the role of supporting the body of the worker P, since the traveling grip 57 is rotatably attached, the body of the worker is traveling when the vehicle is traveling. Is also unstable.

The invention according to claim 1 was made to solve the above problems, and the purpose thereof is to eliminate fatigue of the wrist of an operator by performing a traveling operation with a fingertip. Moreover, it is an object of the present invention to provide a lever-type operating device in a cargo handling vehicle that enables a worker to perform traveling operation in a stable state.

Further, in connection with the lever type operating device of the above-mentioned cargo handling vehicle, not only such a cargo handling vehicle but generally a lever type operating device provided with an operating lever is used when an operation is performed with a fingertip. , It is necessary to replace the finger position depending on the operation direction, that is, the position of the finger applied to the operation lever,
We also paid attention to the problem of poor operability.

The invention of claim 2 has been made in view of such circumstances, and an object thereof is to perform a lever operation only with a fingertip, and to operate the finger regardless of the operation direction of the operation lever. An object of the present invention is to provide a lever-type operating device that can improve the operability of the operating lever without the need for replacement.

[0012]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a lever type operation device for a cargo handling vehicle comprising a traveling lever for operating the vehicle according to the first aspect of the invention. The lever-type operating device is provided with a grip that can be gripped by an operator, and the lever-type operating device near the grip is provided with a traveling lever, and at least the traveling lever is operated by the operating lever. The gist of the invention is to provide a finger contact portion with which a finger of a hand gripping the grip contacts in a direction.

According to the second aspect of the present invention, the finger contact with which the operator's finger is brought into contact with the operation lever for controlling the operation object at least when the operator's finger is moved in the operation direction of the operation lever. The point is that a contact point is provided.

[0014]

By employing the above means, in the invention of claim 1, when operating the cargo work vehicle, the operator always holds the grip with one hand and sets the finger of the hand on the traveling lever. The finger contact part. By moving the finger in this state, the traveling lever is operated.

Further, in the invention of claim 2, the worker brings his finger into contact with the finger contact portion provided on the operation lever. Then, by moving this finger, the operation lever is operated.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a battery type order picker will be described below with reference to FIGS.

As shown in FIG. 1, an operating device 1 for operating an order picker comprises a main control panel 2 and a sub-control panel 3 attached to the right side surface of the main control panel 2 and having a rectangular box shape. ing.

On the left side of the main control panel 2, a steering wheel 4 is rotatably supported. The direction of the wheel (not shown) is changed by the turning operation of the steering wheel 4. A steering handle 5 for rotating the steering wheel 4 is attached near the outer peripheral edge of the steering wheel 4. On the upper surface of the main control panel 2, various indicators and instruments such as a steering warning lamp and a battery capacity indicator (not shown) are provided.

As shown in FIGS. 1 and 2, a pair of elongated holes 13 and 14 extending in the front-rear direction of FIG. 1 are provided on the upper surface of the sub-control panel 3. The sub-control panel 3 is provided with an elevating lever 6 as an operation lever that inserts through the elongated hole 13. The base end of the lifting lever 6 is connected to the internal mechanism of the sub control panel 3. The tip of the elevating lever 6 is projected to the outside through the elongated hole 13. The elevating lever 6 has a rod shape, and its tip is bent rightward. A thread 6a is engraved on the tip of the lifting lever 6. A finger insertion member 7 as a finger contact portion is screwed to the screw thread 6a.

The finger insertion member 7 is formed in a bottomed cylindrical shape having a finger insertion hole 7a formed therein, and an index finger of an operator can be inserted therein. A screw hole 7b is formed on the bottom surface on the outer side of the finger insertion member 7. The screw thread 6a is screwed into the screw hole 7b, and the finger insertion member 7 is attached and fixed to the elevating lever 6.
Therefore, when the index finger is moved with the index finger inserted in the same finger insertion hole 7a, the index finger comes into contact with the inner wall of the finger insertion member 7 corresponding to the finger insertion hole 7a.

When the elevating lever 6 is tilted toward the front in FIG. 1, the platform and the fork are integrally raised, and when tilted forward in FIG. 1, it is lowered. Incidentally, the sub control panel 3
A spring (not shown) is built therein, which constantly urges the lifting lever 6 to the neutral position. Therefore, when the elevating lever 6 is not operated, the elevating lever 6 is always stopped and held at the neutral position.

On the sub-control panel 3, a traveling lever 8 as an operating lever for inserting the elongated hole 14 is inserted.
Is provided. The base end of the traveling lever 8 is connected to the internal mechanism of the sub control panel 3.
The tip of the traveling lever 8 is projected to the outside through the elongated hole 14. A screw thread 8a is formed at the tip of the traveling lever 8. A finger insertion member 9 as a finger contact portion is screwed into the thread 8a.

The finger insertion member 9 is formed in a bottomed columnar shape having a finger insertion hole 9a, and a middle finger of an operator can be inserted therein. A screw hole 9b is formed on the side surface of the finger insertion member 9, and an incomplete screw portion is provided at the innermost portion thereof. The screw thread 8 is inserted into the screw hole 9b
The finger insertion member 9 is attached and fixed to the traveling lever 8 by screwing in a and tapping the incompletely threaded portion. Therefore, when the middle finger is moved with the middle finger inserted in the same finger insertion hole 9a, the middle finger is moved to the finger insertion hole 9 of the finger insertion member 9.
It is brought into contact with the inner wall corresponding to a.

When the travel lever 8 is tilted forward in FIG. 1, the order picker moves forward, and when tilted forward in FIG. 1, the order picker moves backward. In addition, a spring (not shown) that constantly urges the traveling lever 8 to the neutral position is built in the sub control panel 3. Therefore, when the traveling lever 8 is not operated, the traveling lever 8 is always stopped and held in the neutral position.

A grip 10 is vertically fixed on the upper surface of the sub-control panel 3 on the right side where the tip of the traveling lever 8 is projected. That is, a screw hole 10b is formed on the bottom surface of the grip 10, and a bolt 11 projecting from the inside of the sub control panel 3 to the outside is screwed into the screw hole 10b so as to be fixed to the sub control panel 3. Has been done. Further, when the operator grips the grip 10, the index finger of the gripped hand is inserted into the finger insertion hole 7a of the finger insertion member 7, and the middle finger is inserted into the finger insertion hole 9a of the finger insertion member 9, respectively. The elevating lever 6 and the traveling lever 8 are operated by the fingers.

The front surface of the grip 10 has an uneven portion 10a which serves as an anti-slip when the operator holds it by hand.
Are formed. Next, the electrical configuration of the order picker configured as described above will be described based on FIG.

The traveling lever 8 is a potentiometer 1
Connected to 5. The potentiometer 15 is A
It is connected to the controller 17 via the / D converter 16. Then, the potentiometer 15 detects the stroke amount of the traveling lever 8, converts the detection signal into a digital signal by the A / D converter 16 and outputs the digital signal to the controller 17.

The lifting lever 6 is a potentiometer 1
8 is connected. The potentiometer 18 is A
It is connected to the controller 17 via the / D converter 19. Then, the potentiometer 18 detects the stroke amount of the lifting lever 6, converts the detection signal into a digital signal by the A / D converter 19, and outputs the digital signal to the controller 17.

The controller 17 includes a drive circuit 20.
The traveling motor 21 is connected via. The traveling motor 21 drives wheels (not shown). Then, the controller 17 is based on the stroke amount detected by the potentiometer 15,
The traveling motor 21 is drive-controlled via the drive circuit 20. .

The controller 17 includes a drive circuit 22.
A lift hydraulic cylinder 24 is connected via a control valve 23. The lift hydraulic cylinder 24 moves up and down the platform and fork. Then, the controller 17 drives and controls the lift hydraulic cylinder 24 via the drive circuit 22 and the control valve 23 based on the stroke amount detected by the potentiometer 18.

Next, the operation of the order picker configured as described above will be described. When operating the order picker, the operator holds the steering wheel 5 with the left hand and the grip 10 with the right hand. Further, the index finger of the right hand is inserted into the finger insertion hole 7a of the elevating lever 6 and the middle finger is inserted into the finger insertion hole 9a of the traveling lever 8.

When the vehicle is moved to the right, the steering wheel 5 is rotated clockwise. On the contrary, when the vehicle is moved to the left, the steering wheel 5 for steering is rotated counterclockwise.

To raise the platform and fork, move the index finger of the right hand to the front. Then, the index finger is brought into contact with the inner wall corresponding to the finger insertion hole 7a, and the lifting lever 6 is tilted toward the front as the index finger moves. Then, based on the stroke amount of the lifting lever 6, the controller 17 drives and controls the lift hydraulic cylinder 24 via the drive circuit 22 and the control valve 23. As a result, the platform and fork are raised together. On the contrary, when the forefinger is moved forward and the lifting lever 6 is tilted forward, the controller 17 drives and controls the lift hydraulic cylinder 24 via the drive circuit 22 and the control valve 23 based on the stroke amount. To do. As a result, the platform and fork are lowered.

On the other hand, when it is desired to move the vehicle forward, the middle finger of the right hand is moved forward. Then, the middle finger is brought into contact with the inner wall corresponding to the finger insertion hole 9a, and the traveling lever 8 is tilted forward as the middle finger moves. Based on the stroke amount of the traveling lever 8, the controller 17 drives and controls the traveling motor 21 via the drive circuit 20. As a result, the vehicle moves forward. Conversely, move your middle finger forward,
When the traveling lever 8 is tilted to the front, the controller 17 is moved based on the stroke amount of the traveling lever 8.
Controls the drive motor 21 via the drive circuit 20. As a result, the vehicle moves backward.

According to this embodiment, the raising / lowering lever 6 and the traveling lever 8 can be operated only by the fingertips, and it is not necessary to move the finger contact position in accordance with the operating direction of the respective levers 6, 8. Therefore, operability is improved.

Since running and lifting can be operated with the fingertip, it is possible to prevent the wrist from getting tired even when running for a long distance. Further, while the grip 10 fixed to the sub-control panel is gripped by the dragging finger, the little finger, and the thumb, the lifting lever 6 and the lifting lever 8 can be operated by the index finger and the middle finger. Therefore, it is possible to securely support the body with both hands, especially in the order picker where the worker is also lifted up and down during lifting.
The operation can be performed in a very stable state.

Furthermore, the lifting lever 6 and the traveling lever 8
Since it is possible to carry out with the same configuration, it becomes possible to carry out stepless control of the elevation of the platform and fork instead of the conventional ON-OFF control, and it is possible to further contribute to the improvement of the operability of the order picker.

The present invention is not limited to the above-mentioned embodiment, but the constitution of each part can be changed as follows. (1) Instead of the two-finger insertion members 7 and 9 of the above embodiment, FIG.
Alternatively, the finger insertion member shown in FIG. 5 may be used.

That is, as shown in FIG. 4A, the finger insertion member 30 is composed of a main body 31 and a finger insertion portion 32. The main body 31 has a screw hole 31a screwed into the screw thread 6a of the elevating lever 6 and a concave receiving surface 31b. Finger insertion part 3
2 is provided with a hemispherical finger insertion hole 32a and a spherical portion 32b. The receiving surface 31b and the spherical portion 32b form a ball joint, and the finger insertion portion 32 can swing with respect to the main body 31.

As shown in FIG. 4B, the finger insertion member 33
Is composed of a main body 34 and a finger insertion portion 35. A screw hole 34a to be screwed into the screw thread 8a of the traveling lever 8 is threaded on the main body 34, and a concave receiving surface 34b is formed. The finger insertion portion 35 is provided with a hemispherical finger insertion hole 35a and the spherical portion 35
b is formed. The receiving surface 34b and the spherical portion 35b constitute a ball joint, and the main body 3
The finger insertion portion 35 can be swung with respect to 4.

As shown in FIG. 5A, the finger insertion member 36 fixed to the elevating lever 6 is composed of a main body 37 and a finger insertion portion 38. The main body 37 has a screw hole 37a screwed into the screw thread 6a of the lifting lever 6.
Is engraved. A columnar notched finger insertion hole 38a is formed at the tip of the finger insertion portion 38, and a bolt hole 38b is transparently provided at the base end. And the main body 3
7, the finger insertion part 38 is fixed to the collar 39b by the bolt 39
The structure is rotatably supported via.

As shown in FIG. 5B, the traveling lever 8
The finger insertion member 40 fixed to the main body 41 and the finger insertion portion 4 are
It is composed of two. A screw hole 41a to be screwed into the screw thread 8a of the traveling lever 8 is threaded on the main body 41, and the tip end is formed in a bifurcated shape. A columnar notched finger insertion hole 42a is formed at the tip of the finger insertion portion 42, and an insertion hole 42b is transparently provided at the base end. A pin 43 is inserted through the insertion holes 41b and 42b of the body 41 and the finger insertion portion 42, respectively, and the finger insertion portion 42 is rotatably supported with respect to the body 41 by the pin 43. Has become.

With the above structure, the lifting lever 6 and the traveling lever 8 can smoothly follow the bending and stretching movements of the finger. (2) The orientation of the finger insertion member may be tightened with a nut from the lever base end side instead of the incomplete threaded portion as in the above embodiment.

(3) In each of the above embodiments, a cylindrical or hemispherical finger insertion portion into which a finger can be inserted is illustrated as the finger contact portion. However, for example, a slit may be provided in a part of the finger insertion portion. Good. In short, the shape may be such that the finger comes into contact when the finger is moved in the operation direction of operating the operation lever such as the lifting lever 6.

(4) As shown in FIG. 6, the tip end side of the grip 10 may be bent and formed so as to be located above the elevating lever 6 and the traveling lever 8. Further, as shown in FIG. 7, the grip 10 may be horizontally projected from the left side surface of the main control panel 2 so that the grip 10 is located above the elevating lever 6 and the traveling lever 8. Further, as shown in FIG. 8, both levers 6 and 8 may be horizontally projected from the left side surface of the main control panel 2.

With the above structure, the lifting lever 6 and the lifting lever 8 can be realized by completely common members, and the both finger insertion members 7 and 9 can be shared, so that the manufacturing cost can be reduced. it can.

(5) In the above-mentioned embodiment, the operating device is composed of the main control panel 2 and the sub-control panel 3, but the sub-control panel is omitted and a single control panel is installed. The steering wheel 4, the lifting lever 6, the traveling lever 8 and the grip 10 may be provided.

(6) In the above embodiment, the order picker is exemplified, but it can be embodied in other cargo handling vehicles such as forklifts. (7) The various finger contact portions illustrated in each of the above-described embodiments can be provided not only in the cargo handling vehicle but also in various operation levers. In this case, the grip 10 is not always necessary.

[0049]

As described above in detail, according to the first aspect of the present invention, since the traveling operation can be performed with the fingertip, the fatigue of the wrist of the worker can be eliminated, and the worker can always grip the grip. Since you can operate by grasping,
It has an excellent effect that the traveling operation can be performed in a stable state.

According to the second aspect of the present invention, the lever can be operated only by the fingertip, and the finger does not have to be replaced regardless of the operating direction of the operating lever. Therefore, the operability of the operating lever is improved. It has an excellent effect that it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing an operating device of an order picker according to an embodiment of the present invention.

FIG. 2 is a partially enlarged exploded perspective view showing an operating device.

FIG. 3 is a block diagram showing an electrical configuration of the order picker.

FIG. 4A is a front view showing another example of a finger insertion member attached to a lifting lever, and FIG. 4B is a front view showing another example of a finger insertion member attached to a traveling lever.

FIG. 5A is a front view showing still another example of a finger insertion member attached to a lifting lever, and FIG. 5B is a front view showing another example of a finger insertion member attached to a traveling lever. is there.

FIG. 6 is a partial front view showing another example of the operating device.

FIG. 7 is a partial front view showing still another example of the operating device.

FIG. 8 is a partial front view showing still another example of the operating device.

FIG. 9 is a perspective view showing an operating device for an order picker according to a conventional example.

FIG. 10 is a perspective view showing an order picker according to a conventional example.

[Explanation of symbols]

1 ... Operating device, 6 ... Lifting lever as operating lever,
8 ... Travel levers as operating levers, 7, 9, 30,
33, 36, 40 ... Finger insertion member as finger contact portion, 10
…grip.

Claims (2)

[Claims] 1. A lever-type operating device for a cargo-handling work vehicle comprising a traveling lever for operating a vehicle, wherein the lever-type operating device is provided with a grip that can be gripped by an operator. The lever-type operation device in the vicinity is provided with a traveling lever, and the traveling lever is provided with a finger contact portion with which a finger of a hand gripping a grip abuts at least in the operation direction of the traveling lever. Lever-type operation device for cargo handling vehicles. 2. An operation lever for controlling an operation target is provided with a finger contact portion with which the finger of the operator comes into contact when the finger is moved at least in the operation direction of the operation lever. Characteristic lever type operation device.