JP2006264961A - Standing drive type forklift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a standing drive type forklift capable of safe driving operation by an operator, without causing a sense of incompatibility of an operation feeling based on a difference in the driving operation between the forklift and a general standing drive type forklift, by aiming at the standing drive type forklift for making the operator board in a standing posture in a cabin of a vehicle body having a work machine in front. <P>SOLUTION: For attaining the purpose, this standing drive type forklift is characterized in that a steering wheel is arranged in an area operable by a left hand of the operator boarded by turning the front of the body toward the side of the vehicle body, and a travel/work machine operation part is arranged in an area operable by a right hand of the operator, and a brake pedal is also arranged in an area operable by a left foot of the operator. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

    The present invention relates to a stand-up forklift that rides on a cab of a vehicle main body equipped with a work machine in a forward position in an operator's position, and more particularly to an operation system layout in the stand-up forklift.

    FIGS. 7 and 8 show a forklift (forklift truck) which is an embodiment of a working vehicle, in particular, a standing forklift suitable for work that frequently requires an operator to get on and off such as picking work. A is composed of a vehicle body (vehicle main body) B and a work machine C mounted in front of the vehicle body B.

  The vertical riding forklift A is a reach-type forklift having leg frames L, L extending forward in the left and right directions of the vehicle body B. The left and right front wheels Wf provided at the front part of the leg frame L and the rear part of the vehicle body B are provided. The working machine C, which travels with the rear wheels (driving / turning wheels) Wr and is equipped in front of the vehicle body B, is arranged along the mast M by the mast M standing up and down and the lift cylinder R. And a fork F that is raised and lowered.

  In addition, the vehicle body B of the above-mentioned stand-up forklift A is provided with a cab S on which the operator O stands in a standing position. The operator O who boarded (direction) operated the steering handle H with the left hand H1, and operated various operation levers (travel / work machine operation section) L such as a travel accelerator lever and a work machine lift lever with the right hand Hr. Further, the above-mentioned standing forklift A is operated by operating the brake pedal P with the left foot Fl.

  Incidentally, the layout in which the steering handle H is operated with the left hand Hl, the operation lever L is operated with the right hand Hr, and the brake pedal P is operated with the left foot Fl is a general seated forklift (not shown) having an operator seat. This is in accordance with the layout of the operation system in FIG.

  On the other hand, as an aspect of the vertical riding forklift, as shown in FIGS. 9 and 10, there is provided a vertical riding forklift A ′ in which the operator O rides sideways facing the side of the vehicle body B ′. The riding forklift A ′ is also composed of a vehicle body (vehicle main body) B ′ and a work machine C ′ installed in front of the vehicle body B ′.

  The vertical riding forklift A ′ travels with left and right front wheels Wf ′ provided at the front portion of the vehicle body B and rear wheels (drive / turning wheels) Wr ′ provided at the rear portion of the vehicle body B ′. The working machine C ′ installed in front of the vehicle body B ′ has a mast M ′ standing up and down and a fork F ′ that is lifted and lowered along the mast M ′ by a lift cylinder R ′. .

  The vehicle body B ′ of the above-described stand-up forklift A ′ is provided with a cab S ′ on which an operator O stands in a standing posture, and the front of the body is placed on the side of the vehicle body B ′. The operator O who has boarded in the direction (the front side in FIG. 9 and the downward direction in FIG. 10) operates the steering handle H ′ with the right hand Hr, and the traveling accelerator lever, the work implement lift lever, etc. with the left hand Hl. Various operation levers (running / work machine operation section) L ′ are operated, and further, the brake pedal P ′ is operated by the right foot Fr to operate the above-described standing-type forklift A ′.

  Here, the above-described prior art known to the applicant is a publicly known / public technique disclosed by a pamphlet or the like, and is not related to a literature known invention, and therefore there is no prior art literature information to be described.

    By the way, in the vertical riding forklift A ′ shown in FIG. 9 and FIG. 10, it is possible to ensure a good field of view in both the forward and reverse directions by the operator O getting on the vehicle body B ′ sideways. Although there is an effective advantage, the driving feeling is greatly different from a general standing-type forklift (see FIGS. 7 and 8) on which an operator rides facing forward.

  That is, in the general vertical riding forklift A shown in FIGS. 7 and 8, the steering handle H is operated with the left hand H1, the various operating levers L are operated with the right hand Hr, and the brake pedal P is operated with the left foot Fl. As shown in FIG. 10, in the standing type forklift A ′ on which the operator O rides sideways, the steering handle H ′ is operated with the right hand Hr, various operation levers L ′ with the left hand Hl, and the brake pedal P ′ with the right foot Fr. The driving operation of the riding forklift lift A and the standing forklift lift A ′ is completely different, and there is a disadvantage that it takes time to get used to the uncomfortable feeling of driving when both are changed.

  SUMMARY OF THE INVENTION In view of the above situation, an object of the present invention is a vertical forklift that can be operated safely by an operator without causing a sense of incongruity of driving based on a difference in driving operation with a general vertical riding forklift. Is to provide.

    In order to achieve the above object, a standing forklift according to claim 1 is provided with a working machine in front of a vehicle main body, and is operated by an operator boarded in an attitude standing on a cab of the vehicle main body. The steering wheel disposed in an area that can be operated by the left hand of the operator who boarded with the front of the body facing the side of the vehicle body, and the right hand of the operator boarded with the front of the body facing the side of the vehicle body A traveling / working machine operating unit disposed in an operable region, and a brake pedal disposed in an operable region by the left foot of an operator who boarded with the front of the body facing the side of the vehicle body It is characterized by that.

  According to a second aspect of the present invention, there is provided a vertical forklift according to the first aspect of the present invention, wherein the steering handle in the vehicle main body is disposed close to the turning wheel in the vehicle main body. It is a feature.

    According to the vertical riding forklift according to the invention of claim 1, the operator who has boarded the body with the front of the vehicle facing the side of the vehicle body is a steering handle with the left hand, a traveling / working machine operating unit with the right hand, and a brake pedal with the left foot. A general standing forklift that rides facing the front of the vehicle body, that is, a steering forklift with the left hand, a traveling / working machine operation unit with the right hand, and a brake pedal with the left foot The operation is common, and even when the two are switched, there is no sense of incongruity of driving feeling due to the difference in driving operation, and the driving operation can be safely performed by the operator.

  Furthermore, according to the vertical riding forklift according to the first aspect of the present invention, the operator can get good visibility in both the forward direction and the reverse direction during operation by getting on the front of the body toward the side of the vehicle body. Therefore, the efficiency and safety of work can be greatly improved.

  Further, according to the vertical riding forklift according to the invention of claim 2, the operator can safely operate the vehicle even when changing between a general vertical forklift and the vertical riding forklift according to the invention of claim 1. In addition to being able to drive the vehicle, the steering handle is arranged close to the turning wheel of the vehicle main body, thereby simplifying the steering transmission mechanism that connects the steering wheel and the turning wheel. The structure can be simplified as much as possible.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating some embodiments.
FIG. 1 and FIG. 2 show a first embodiment of a vertical forklift according to the present invention. This vertical forklift 1 is equipped with a vehicle body (vehicle main body) 2 and a work mounted in front of the vehicle body 2. Machine 3. Incidentally, in FIGS. 1 and 2, the direction indicated by the arrow X is the front of the vertical riding forklift 1.

  The vertical riding forklift 1 is a so-called counter-type forklift that travels between a front wheel 4F provided at the front left and right of the vehicle body 2 and a rear wheel 4R provided at the center of the rear part of the vehicle body 2. The working machine 3 equipped with the mast 3m has a mast 3m standing up and down and a fork 3f which is lifted and lowered along the mast 3m by a lift cylinder 3r.

  Here, the rear wheel 4r provided at the center of the rear portion of the vehicle body 2 is supported so as to be able to turn with respect to the vehicle body 2, and is a turning wheel operated by a steering handle 6 described later, and a motor (see FIG. It is also a driving wheel for traveling that is rotationally driven by (not shown).

  The vehicle body 2 of the vertical riding forklift 1 is provided with a driver's cab 5 on which an operator O stands, and the driver's cab 5 is opened to the left side of the vehicle body 2 in a concave shape. Cabin 5A and a floor 5F laid on the bottom of the cabin 5A.

  Here, the cab 5 is provided in the left region of the vehicle body 2, while the driving battery 2 </ b> B is mounted in the right region of the vehicle body 2.

  An operator O gets on the cab 5 with a posture in which the front side of the body is directed to the left side of the vehicle body 2 (the front side in FIG. 1 and the downward direction in FIG. 2). In order to improve the stability of the operator O during work, it is also effective to provide a support (not shown) that supports the body of the operator O in the cabin 5A.

  Further, the steering wheel 6 is disposed on the left side of the operator O who has boarded the cab 5 (on the rear side of the vehicle body with respect to the cab 5), in other words, in a region that can be operated by the left hand H1 of the operator O. It is arranged.

  Here, the steering handle 6 is a rear wheel (turning wheel) provided at the rear part of the vehicle body 2 rather than the front wheel 4F provided at the rear side of the cab 5, that is, at the front part of the vehicle body 2, as described above. ) It is arranged at a position close to 4R, and is linked to the rear wheel (turning wheel) 4R via a turning steering transmission mechanism 6A as shown in FIG.

  Further, the vehicle body 2 of the stand-up forklift 1 has a traveling / working machine in a region that can be operated by the right hand Hr of the operator O, that is, the right side of the operator O on the cab 5 (in front of the cab 5). An operation unit 7 is provided.

  Here, the traveling / working machine operation unit 7 includes various operation levers such as a traveling accelerator lever, a working machine lift lever, and a working machine tilt lever.

  Further, on the floor 5F of the cab 5, a brake pedal 8 is disposed on the left side of the operator O who has boarded the cab 5, in other words, in an area operable by the left foot Fl of the operator O.

  Here, the brake pedal 8 is a brake pedal for a deadman brake that is released by being depressed.

  An operator O who has boarded the cab 5 of the vertical riding forklift 1 with the front of his body facing the side of the vehicle body 2 operates the steering handle 6 with the left hand Hl and travels with various control levers with the right hand Hr. / Operating the work implement operating section 7, and further operating the brake pedal 8 with the left foot Fl to operate the above-described standing forklift 1.

  According to the vertical riding forklift 1 having the above-described configuration, the operator O can get a good field of view in both the forward direction and the reverse direction during work by having the front of the body face the side of the vehicle body 2. Work efficiency and safety can be greatly improved.

  Further, according to the standing-type forklift 1 having the above-described configuration, the operator O who has boarded operates the steering handle 6 with the left hand Hl, the travel / work machine operating unit 7 with the right hand Hr, and the brake pedal 8 with the left foot Fl. The driving operation is common to a general standing forklift in which the operator O rides facing the front of the vehicle body, and even when both are switched, there is no sense of incongruity of driving feeling due to the difference in driving operation. The operator O can safely perform the driving operation.

  Further, according to the vertical riding forklift 1 configured as described above, the steering handle 6 of the vehicle body 2 is disposed close to the rear wheel (turning wheel) 4R, so that the steering handle 6 and the rear wheel (turning wheel) are arranged. The steering transmission mechanism 6A connecting the 4R is simplified, and the structure of the vertical riding forklift 1 can be simplified as much as possible.

  3 and 4 show a second embodiment of a vertical riding forklift according to the present invention. A driver's cab 15 is provided on the right side of the vehicle body 12 in the vertical riding forklift 10. A driving battery 12B is mounted on the left side of the vehicle, and the driver's cab 15 includes a concave cabin 15A opened toward the right side of the vehicle body 12, and a floor 15F laid on the bottom of the cabin 15A. It is equipped with.

  An operator O gets on the cab 15 with a posture in which the front of the body is directed to the left side of the vehicle body 12 (downward in FIG. 3). In order to improve the stability of the operator O during work, it is also effective to provide a support (not shown) for supporting the body of the operator O in the cabin 15A.

  The vehicle body 12 of the vertical riding forklift 10 has a steering handle 16 on the left side of the operator O who has boarded the driver's cab 15 (the region that can be operated by the left hand H1 of the operator O) and the right side of the operator O (by the right hand Hr of the operator O). The traveling / working machine operating unit 17 is disposed in the operable area), and further, on the floor 15F of the cab 15, the left side of the operator O who has boarded the cab 15 (the area that can be operated by the left foot Fl of the operator O). ) Is provided with a brake pedal 18.

  Here, the arrangement of the steering handle 16 and the traveling / work machine operating unit 17 is not limited to the left side and the right side with respect to the operator O, and there is an installation space on the front side with respect to the operator O as shown in FIG. In this case, the steering wheel is divided into a region (region that can be operated by the left hand H1 of the operator O) Al and a region (region that can be operated by the right hand Hr of the operator O) Ar that extends from the side to the front of the operator O. 16 and a traveling / working machine operation unit 17 can be provided.

  The configuration of the above-described stand-up forklift 10 is basically the same as that of the stand-up forklift 1 shown in FIGS. 1 and 2 except for the layout related to the cab 15. The components having the same action as the components of the vertical riding forklift 1 are designated by the same reference numerals as those in FIGS. 1 and 2 in FIG. To do.

  According to the vertical forklift 10 having the above-described configuration, the operator on board can secure a good field of view as in the case of the vertical forklift 1 of the first embodiment, so that work efficiency and safety can be greatly improved. In addition, since the driving operation is the same as that of a general vertical riding forklift, it is possible to perform the driving operation safely by the operator O, and the steering transmission mechanism can be simplified. It becomes possible to simplify the structure.

  FIG. 5 shows a third embodiment of the vertical riding forklift according to the present invention, and a cab 25 provided on the vehicle body 22 of the vertical riding forklift 20 is opened through the vehicle body 22 in the left-right direction. The cabin 25A and a floor 25F laid on the bottom of the cabin 25A are provided, and driving batteries 22B and 22B are mounted on the rear portion of the vehicle body 22 in the left and right directions.

  The operator O gets on the cab 25 in a posture in which the front of the body is directed to the left side of the vehicle body 22 (downward in FIG. 5). In order to improve the stability of the operator O during work, it is also possible to support the body of the operator O by providing a detachable safety belt (not shown) or the like in the cabin 25A.

  The vehicle body 22 of the vertical riding forklift 20 has a steering handle 26 on the left side of the operator O who has boarded the driver's cab 25 (area that can be operated by the left hand H1 of the operator O), and the right side of the operator O (by the right hand Hr of the operator O). The traveling / working machine operation unit 27 is disposed in the operable area, and the floor 25F of the cab 25 is further provided on the left side of the operator O on the cab 25 (the area operable by the left foot Fl of the operator O). ) Is provided with a brake pedal 28.

  The configuration of the above-described stand-up forklift 20 is basically the same as that of the stand-up forklift 1 shown in FIGS. 1 and 2 except for the layout related to the battery 22B and the cab 25. Components having the same functions as those of the vertical forklift 1 have the same reference numerals as those in FIGS. 1 and 2 in FIG. Description is omitted.

  According to the vertical forklift 20 having the above-described configuration, the operator on board can secure a good field of view as in the case of the vertical forklift 1 of the first embodiment, so that work efficiency and safety are greatly improved. In addition, since the driving operation is common with a general vertical riding forklift, the driving operation can be safely performed by the operator O, and the steering transmission mechanism can be simplified. It is possible to simplify the structure of the forklift.

  Furthermore, according to the vertical riding forklift 20 configured as described above, since the cabin 25A of the cab 25 is opened through in the left-right direction of the vehicle body 22, the operator O can operate the cab from either the left or right side of the vehicle body 22. Thus, it is possible to greatly improve the efficiency of, for example, picking work.

  FIG. 6 shows a fourth embodiment of a vertical forklift according to the present invention, and a driver's cab 35 is provided on the left side of the vehicle body 32 in the vertical forklift 30, while the cab 35 is provided on the right side of the vehicle body 32. A driving battery 32B is mounted, and the cab 35 includes a concave cabin 35A that is open toward the left side of the vehicle body 32, and a floor 35F that is laid on the bottom of the cabin 35A. is doing.

  The operator O gets on the cab 35 with a posture in which the front of the body is directed to the right side of the vehicle body 32 (upward in FIG. 6). In order to improve the stability of the operator O during work, it is also effective to provide a support (not shown) that supports the body of the operator O in the cabin 35A.

  A steering handle 36 is arranged on the vehicle body 32 of the vertical riding forklift 30 on the left side of the operator O boarding the cab 35 (front side of the vehicle body with respect to the cab 35), in other words, in an area operable by the left hand H1 of the operator O. It is installed.

  Here, the vertical riding forklift 30 constitutes a turning wheel in which the front wheel 34F can turn, and the steering handle 36 is located on the front side of the vehicle body with respect to the cab 35, that is, on the rear portion of the vehicle body 32 as described above. It is disposed at a position closer to the front wheel (turning wheel) 34F provided at the front portion of the vehicle body 32 than the provided rear wheel 34R, and the front wheel (turning wheel) is connected via a turning steering transmission mechanism (not shown). This is linked to the 34F wheel.

  Further, the vehicle body 32 of the stand-up forklift 30 has a traveling / working machine in a region that can be operated by the right hand Hr of the operator O on the right side (the rear side of the vehicle body with respect to the cab 35) on the cab 35. An operation unit 37 is provided.

  Further, on the floor 35F of the cab 35, a brake pedal 38 is disposed on the left side of the operator O who has boarded the cab 35, in other words, in an area operable by the left foot Fl of the operator O.

  The configuration of the above-mentioned stand-up forklift 30 is basically the same as that of the stand-up forklift 1 shown in FIGS. 1 and 2 except for the layout related to the cab 35. The components having the same function as the components of the vertical riding forklift 1 are given the same reference numerals as those in FIG. 1 and FIG. To do.

  According to the vertical forklift 30 having the above-described configuration, the operator who has boarded can secure a good field of view, as in the vertical forklift 1 of the first embodiment, so that work efficiency and safety can be greatly improved. In addition, since the driving operation is the same as that of a general vertical riding forklift, it is possible to perform the driving operation safely by the operator O, and the steering transmission mechanism can be simplified. It becomes possible to simplify the structure.

  In a vertical riding forklift in which the front wheels constitute turning wheels, the operator is placed on the cab provided on the left side of the vehicle body as in the fourth embodiment with the front of the body facing the right side of the vehicle body. In addition to boarding, it goes without saying that the operator may be mounted on a cab provided on the right side of the vehicle body or on a cab that penetrates the left and right sides of the vehicle body with the front of the body facing the right side of the vehicle body. Yes.

  The vertical riding forklift in each of the embodiments described above is a so-called counter type forklift. However, the present invention is also applicable to a reach type forklift, that is, a vertical forklift provided with a leg frame extending in front of the left and right sides of the vehicle body. Of course, it can be applied effectively.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual side view showing a first embodiment of a vertical riding forklift according to the present invention. 1 is a conceptual plan view showing a first embodiment of a vertical riding forklift according to the present invention. The conceptual top view which shows 2nd Example of the vertical riding forklift concerning this invention. The conceptual top view which shows the area | region which can be operated with the left hand and right hand of an operator in the vertical riding forklift of FIG. The conceptual top view which shows 3rd Example of the vertical riding forklift concerning this invention. The conceptual top view which shows 4th Example of the standing-type forklift concerning this invention. The whole external appearance side view which shows one example in the conventional vertical riding forklift. The conceptual top view which shows the operator's boarding attitude | position with respect to the standing type forklift of FIG. The whole external appearance side view which shows the other example in the conventional vertical riding forklift. The conceptual top view which shows the operator's boarding attitude | position with respect to the standing type forklift of FIG.

Explanation of symbols

1, 10, 20, 30 ... Vertical riding forklift,
2, 12, 22, 32 ... car body (vehicle body),
3, 13, 23, 33 ... work machines,
4R, 14R, 24R, 34R ... rear wheels (turning wheels),
5, 15, 25, 35 ... cab,
6, 16, 26, 36 ... steering wheel,
7, 17, 27, 37 ... operation lever (travel / work machine operation section),
8, 18, 28, 38 ... Brake pedal,
O ... Operator
Hl ... Left hand,
Hr ... right hand,
Fl ... Left foot.

Claims (2)

In the standing type forklift operated by an operator who is equipped with a work machine in front of the vehicle body and is mounted in a posture standing on the cab of the vehicle body,
A steering handle disposed in a region that can be operated by the left hand of an operator who has boarded the front of the body toward the side of the vehicle body;
A traveling / working machine operating section disposed in an area operable by the right hand of an operator who has boarded the front of the body toward the side of the vehicle body;
A brake pedal disposed in an area operable by the left foot of an operator who boarded the front of the body toward the side of the vehicle body;
A vertical riding forklift characterized by comprising: 2. The vertical riding forklift according to claim 1, wherein the steering handle in the vehicle main body is disposed close to a turning wheel of the vehicle main body.

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