JP4822388B2 - forklift - Google Patents

Description

  The present invention relates to a forklift in which a driver's cab is supported by a vehicle body via a mast so as to be movable up and down.

  As disclosed in Patent Document 1 and Patent Document 2 to be described later, a forklift whose cab is supported by a vehicle body via a mast so as to be movable up and down (hereinafter, a typical order picking truck is representative). , Masts are erected in the left-right direction of the vehicle body at the center of the vehicle body, and the cab is supported by these masts so as to be movable up and down.

  The driver's cab is provided with a floor on which the driver stands, a head guard for protecting the driver on the floor from falling objects, and an operating tool for driving the order picking truck. A panel is provided.

  The head guard is supported by pillars raised on the left and right sides of the front edge of the floor, and the instrument panel is supported by the intermediate height part of the pillars as disclosed in Patent Document 1, As disclosed in Patent Document 2, it is raised at the rear edge of the floor.

Moreover, in the forklift disclosed in Patent Document 2, a fall prevention fence (guard) made of a plate member is provided in the lower half portion between the columns.
JP-A-8-113486 Japanese Patent Laid-Open No. 2002-87783

  By the way, according to the prior art disclosed in Patent Document 1, when the vehicle body is advanced, the driver directly faces forward on the floor and monitors the front. It is narrowed by the instrument panel, making it difficult to check the situation around the front end of the vehicle body, and driving is difficult.

  Further, when the vehicle body is moved backward, the driver must look back on the floor to monitor and operate the operating tool by groping, which makes the driving operation more difficult.

  On the other hand, according to the prior art disclosed in Patent Document 2, when the vehicle body is moved backward (traveling in the direction opposite to the fork), the mast, the cab post and the fall-preventing fence narrow the field of view. Since it is necessary to look back on the floor and monitor it and operate the operation tool by groping, the driving operation becomes even more difficult.

  The present invention has been made in view of these conventional circumstances, and an object of the present invention is to provide a forklift that has a wide field of view for the driver when the vehicle body moves forward and backward and that facilitates driving operation.

In order to achieve this object, a forklift according to the present invention includes a cab supported so as to be movable up and down with respect to a vehicle body through a mast, and a traveling operation of the vehicle body is performed by a driver riding on the cab. In a forklift, the mast is provided on one side in the width direction of the vehicle body, and the instrument panel of the driver's cab and the support column supporting the mast are arranged on the same side as the mast and at one end edge of the floor of the driver's cab In addition, the other side of the vehicle body in the width direction and the other edge of the floor of the cab is opened toward the vehicle body side so that the driver can perform picking work. adopt the technical means, characterized in that there.

  According to the present invention, since the mast, the cab post and the instrument panel are arranged on one side in the vehicle body width direction of the floor, the one mast and the post are eliminated from the driver's front or rear view. The driver's field of view is expanded in the lateral direction, and the instrument panel or the fall prevention fence is eliminated from the driver's front field of view, so that the driver's field of view is also expanded downward.

  Also, because the instrument panel is located on one side of the floor in the vehicle body width direction, there is no need to look back when moving backwards or look forward when moving forward. Driving operation is easy.

  As a result, it becomes easier for the driver to check the safety around the vehicle body, and the driver can drive with an easy posture, which makes driving easier.

  In the present invention, the mast, the cab post, and the instrument panel are arranged on one side of the floor in the width direction of the vehicle body, so that the driver's front view can be expanded both horizontally and downward. be able to.

  Further, according to the present invention, the mast, the cab of the cab and the instrument panel are arranged on one side of the floor in the width direction of the vehicle body, so that the driver can drive with an easy posture such as facing the traveling direction or half-body. The effect that it is possible can be acquired.

  And it is synergistic that the driver's field of view is widened and that the driver can drive with an easy posture, and an effect of facilitating driving operation can be obtained.

  A forklift according to an embodiment of the present invention will be specifically described with reference to the drawings.

  A vehicle body 1 of a forklift according to an embodiment of the present invention shown in the perspective view of FIG. 1 includes left and right straddle legs 3L provided with a device storage chamber 2 in the rear half and spaced apart to the full width of the car body in the front half. 3R is provided.

  The equipment storage chamber 2 stores hydraulic equipment such as a hydraulic oil tank, a hydraulic pump, and a hydraulic valve, and electrical equipment such as a battery, a travel motor, a hydraulic pump drive motor, and a control unit.

  Left and right facing forward (hereinafter left or right in this description refers to left or right facing forward, except left hand and right hand), for example, on left straddle leg 3R The telescopic mast 4 is erected and the cab 5 is supported by the telescopic mast 4 so as to be movable up and down.

  The telescopic mast 4 has front and rear outer masts 41 whose lower ends are fixed near the front and rear ends of the straddle leg 3R, outer cross beams 42 that connect the upper ends of the outer masts 41, and before and after the elevating and lowering with the outer masts 41 as guides. The inner mast 43 and an inner cross beam 44 that connects upper and lower inner masts 43 are connected to each other, and the inner cross beam 44 and the inner mast 43 are moved up and down by lift cylinders 45 supported by the outer masts 41.

  The driver's cab 5 includes a floor 6 on which the driver stands, a front and rear columns 7 raised from both front and rear ends of the mast side edge of the floor 6, and a head guard 8 fixed to the upper ends of both columns 7. And an instrument panel 9 supported at an intermediate height portion of both supports 7 and fixed to a lift bracket supported by the inner mast 43 so as to be movable up and down.

  Further, left and right forks 10 protruding forward are fixed to the lower surface of the floor 6 of the cab 5.

  The instrument panel 9 is provided with a steering handle 11, a switch board 12, an emergency stop switch comprising a push button switch operated for emergency stop, an accelerator 13, and a floor 6 with a brake pedal 14. It is done.

  The switch board 12 includes an ascending switch composed of a push button switch operated to raise the cab 5 and the fork 10 and a descending switch composed of a push button switch operated to descend the cab 5 and the fork 10. And horn switches that emit warning sounds are arranged in order from the top.

  The accelerator 13 is rotated in order to control the traveling direction and traveling speed of the vehicle body 1, and the brake pedal 14 is of a deadman type in which the brake is released by depressing.

  The driver stands next to the steering handle 11, steps on the brake pedal 14 with his left foot, holds the steering handle 11 with his left hand, faces forward, holds the accelerator 13 with the right hand turned from the front of the body, and moves forward. By turning, the vehicle body 1 can be advanced toward the fork 10.

  The driver stands next to the accelerator 13, steps on the brake pedal 14 with, for example, the right foot, grips the accelerator 13 with the right hand, faces the rear, holds the steering handle 11 with the left hand turned from the front of the body, and the accelerator 13. The vehicle body 1 can be moved backward by turning in the reverse direction.

  Therefore, according to this configuration, when the vehicle body moves forward or backward, the driver does not need to look back, and can perform the driving operation with an easy posture of facing directly or half with respect to the traveling direction.

  Moreover, since the mast and the support | pillar which were in the front left corner of the conventional floor are lost from the driver | operator's front view at the time of reverse drive, a driver | operator's front view becomes wide laterally.

  Furthermore, since the instrument panel and the fall prevention fence that were previously in front of the driver have disappeared from the driver's front view, the driver's front view becomes wider downward.

  In addition, the ease of driving posture and the widening of the forward field of view make a synergistic effect that facilitates driving operation.

  By the way, on the cab 5 of the forklift, there is a rear guard 15 made of a pipe frame that rises from the right rear corner of the floor 6 and bends in an inverted L shape and is connected to the rear portion of the instrument panel 9 as necessary. Provided.

  The rear guard 15 prevents the driver from coming into contact with the equipment storage chamber 2 or falls backward from the floor 6 to improve safety.

  Further, the cab 5 of the forklift can be moved, as necessary, between an action position that projects horizontally from the front end of the instrument panel 9 and a retreat position that rises along the front column 7. A front guard 16 is provided.

  When the front guard 16 is positioned at the operating position when moving forward or backward, the driver can be prevented from falling to the rear side of the floor 6 or falling down.

  Further, when the front guard 16 is positioned at the retracted position at the time of picking work or when getting on and off the floor 6, the front guard 16 does not hinder work or getting on and off.

  Further, the cab 5 of the forklift is provided with a side guard 17 that moves up and down between the operating position on the right edge of the floor 6 and the retracted position directly below the right edge of the head guard 8 as necessary. It is done.

  The side guard 17 is supported by the front and rear columns 7 via the front and rear arms 18, and is positioned by the positioning means 19 between the operating position and the retracted position.

  When the side guard 17 is positioned at the operating position when moving forward or backward, the driver can be prevented from falling to the left side of the floor 6.

  Further, when the side guard 17 is positioned at the retracted position at the time of picking work or getting on and off the floor 6, the side guard 17 does not hinder the work or getting on and off.

  At the time of picking work, as shown in the front view of FIG. 2, for example, when picking a load 22 on a high load shelf 21 and moving it back on the floor 6, the driver 20 during picking work feels uneasy about the risk of falling. Even if it is easy, by providing the rear guard 15, the driver 20 is surrounded by the two directions of the mast side and the rear, so that a sense of security can be obtained. In FIG. 2, only the rear guard 15 is shown, and the front guard 16 and the side guard 17 are omitted.

  As shown in the perspective view of FIG. 3, the rear guard 15 is composed of a pipe bone frame projecting to the right from the instrument panel 9 and, if necessary, an action position projecting to the right. Further, it may be provided so as to be movable over a retracted position that rises along the rear column 7.

  When the rear guard 15 is positioned at the operating position when moving forward or backward, the driver may fall back and come into contact with the equipment storage chamber 2 on the rear side of the floor 6 or fall down to the rear of the floor 6. In addition, the rear guard 15 is not hindered from working or getting on and off when the rear guard 15 is positioned at the retracted position at the time of picking work or getting on and off the floor 6.

  As shown in FIG. 3, instead of the above-described side guard 17, a side guard 17 made of, for example, a pipe frame may be provided that is continuous with the rear guard 15 and extends forward and backward on the right edge of the floor 6. The side guard 17 is moved over a working position located on the right edge of the floor 6 integrally with the rear guard 15 and a retracted position along the head guard 8 near the support column 7.

  Further, as shown in FIG. 3, the front guard 16 may be provided in the cab 5 of the forklift as required.

  In addition, the side guard 17 and the front guard 16 may be connected to each other above the right front corner of the floor 6 so that they can be integrally raised to the retracted position and held. In this case, the side guard 17 and the rear guard 15 may be continuous or may be divided.

  The present invention is applied to a forklift in which a driver's cab is supported on a vehicle body through a mast so as to be movable up and down.

It is a perspective view of the present invention. It is a front view of the present invention. It is a perspective view of the present invention.

1 Car body 4 Mast 5 Driver's cab 6 Floor 7 Prop 9 Instrument panel 15 Rear guard 16 Front guard 17 Side guard

Claims (1)

In a forklift that includes a cab supported so as to be movable up and down via a mast with respect to the vehicle body, and the vehicle body is operated by the driver riding on the cab ,
The mast is provided on one side in the width direction of the vehicle body, and the instrument panel of the driver's cab and the column supporting the mast are arranged on the same side as the mast and at one end edge of the floor of the driver's cab. With
The other side in the width direction of the vehicle body and on the other edge of the floor of the driver's cab is open toward the side of the vehicle body so that the driver can perform a picking operation. Forklift.

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