JP2012127084A - Wheel type work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheel type work machine capable of preventing a door of a tool box from jumping out to a vehicle body outer part.SOLUTION: In a wheel shovel which includes a traveling body 5 provided with a front wheel 3 and a rear wheel 4, a revolving superstructure 2 arranged on the traveling body 5, a work device 1 attached to the revolving superstructure 2, and a step 10 and a tool box 11 arranged between the front wheel 3 and the rear wheel 4, and for which the tool box 11 has an opening 26 on the front surface and also has a door capable of closing the opening 26, the door comprises a shutter 14. For instance, the tool box 11 has an opening 27 on the upper surface as well, and the shutter 14 is capable of closing both of the opening 26 on the front surface and the opening 27 on the upper surface. Also, the tool box 11 has a guide mechanism for guiding the shutter 14 at both side parts of the inside, and has a storage part for the shutter 14 at a back surface part 19 and a lower surface part 20.

Description

  The present invention relates to a wheeled work machine such as a wheel excavator provided with a swivel body having a work device and a self-propelled traveling body and a tool box.

  2. Description of the Related Art Conventionally, a wheeled work machine includes a traveling body capable of self-propelling and a revolving body having a working device on the upper part thereof, and the front and rear wheels of the traveling body go up to the cab or engine room of the revolving body. A step device is arranged. The step device is provided between a front fender mounting member and a rear fender mounting member disposed between the front wheel and the rear wheel, and is horizontally mounted on the upper and lower steps of the upper step member and the lower step member forming the step. It has a member. Further, in the step device, a tool box is disposed between the upper step member and the lower step member as shown in, for example, Patent Document 1, and an article can be stored in the tool box.

  The tool box shown in Patent Document 1 is detachably mounted between a chassis frame constituting the traveling body and an upper step member and a lower step member of the step device. Moreover, the opening part of the tool box is provided in the side part (front part of the tool box) of the traveling body, and can be opened and closed by a laterally opening type or a vertically opening type door.

  As described above, the conventional wheel type work machine can effectively use a wide space between the step members, and can mount a tool box having an article storage capacity in the space, and such a tool box is unnecessary. In some cases, the tool box can be easily removed.

JP 2008-248607 A

  The conventional tool box shown in Patent Document 1 has a front opening that is opened laterally or opened and closed by a longitudinally-opening door. Therefore, when the tool box is opened, the door pops out of the vehicle body of the wheel type work machine. Will open. Wheeled work machines take advantage of the unique mobility of wheels and move quickly between sites or in the field. For this reason, the doors are opened due to forgetting to close the tool box door during traveling or due to some impact. In the case of stagnation, the tool box door may interfere with surrounding objects.

  Since the distance between the upper step member and the lower step member of the step device is determined by the ISO standard, in the conventional tool box, the front opening of the tool box is located between the upper step member and the lower step member. There is also a problem that the size of the tool box is limited.

  In addition, articles can be taken in and out of the tool box only through the front opening. For example, when several wheeled work machines are parked without gaps, the distance between adjacent work machines is narrow. It may happen that the door cannot be opened, and that it is difficult to put the article in and out of the tool box.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide a wheel type work machine that can prevent the tool box door from jumping out of the vehicle body.

  In order to achieve this object, the present invention provides a traveling body having a front wheel and a rear wheel, a turning body disposed on the traveling body, a working device attached to the turning body, the front wheel and the rear wheel. And a tool box, the tool box having an opening on the front surface and a door capable of closing the opening, wherein the door comprises a shutter. It is characterized by. The present invention configured as described above can prevent the door of the tool box from jumping out of the vehicle body during traveling because the door is composed of a shutter, interference between the tool box door and surrounding articles, Damage can be prevented.

  Further, the present invention is characterized in that, in the above invention, the tool box has an opening on the upper surface, and the shutter is capable of closing both the opening on the front surface and the opening on the upper surface. It is said. The present invention configured as described above can store articles in the tool box from the opening on the front surface of the tool box, and can also store articles in the tool box from the opening on the upper surface of the tool box. The articles can be easily put in and out of the tool box.

  According to the present invention, in the above invention, the tool box is provided with a guide mechanism for guiding the shutter on both inner side portions thereof, and has a housing portion for the shutter on a back surface portion and a lower surface portion. The present invention configured as described above can efficiently store the shutter in the storage portion by utilizing the dead space around the tool box.

  According to the present invention, in the above invention, a lower step member and an upper step member are provided between the front wheel and the rear wheel, and an opening on the front surface is formed between the lower step member and the upper step member. The upper surface of the tool box is set higher than the upper step member.

  According to the present invention, in the above invention, a lower step member and an upper step member are provided between the front wheel and the rear wheel, and an opening on the front surface is formed between the lower step member and the upper step member. The lower surface of the tool box is set lower than the lower step member.

  The present invention in which the height position of the upper surface or the lower surface of the tool box is set as described above is not limited to a predetermined interval between the upper step member and the lower step member of the step device, As long as the prevention of interference is taken into consideration, a larger tool box can be mounted, and the article storage capacity in the tool box can be increased.

  According to the wheel type work machine of the present invention, since the door of the tool box includes the shutter, the tool box door can be prevented from jumping out of the vehicle body. Therefore, it is possible to prevent interference between the surrounding objects of the tool box and the tool box door, which has been apt to occur in the past, and it is possible to prevent damage to surrounding objects or the tool box door. The installation structure can be realized.

It is a side view showing a wheel excavator which constitutes one embodiment of a wheel type work machine concerning the present invention. It is a perspective view which shows the traveling body part with which the wheel shovel shown in FIG. 1 is equipped. FIG. 3 is an enlarged view of a main part of FIG. 2. It is a sectional side view which shows the tool box with which the wheel shovel which concerns on this embodiment is equipped. It is a principal part expansion perspective view of the shutter part of the tool box shown in FIG. It is a perspective view which shows the state which opened the shutter from the state shown in FIG. It is a sectional side view of the tool box corresponding to FIG.

  Embodiments of a wheel type work machine according to the present invention will be described below with reference to the drawings.

  A wheeled work vehicle according to an embodiment of the present invention is, for example, a wheel excavator. As shown in FIG. 1, the wheel excavator includes a revolving body 2 having a working device 1 and a traveling body 5 having a front wheel 3 and a rear wheel 4 capable of self-running. A step device 6 is provided in between.

  Step 10 included in the step device 6 includes, as shown in FIGS. 2 and 3, at least one side surface of the chassis frame 7 constituting the traveling body 5 and the front fender mounting member 8 between the front wheel 3 and the rear wheel 4. It is arranged between the rear fender mounting member 9 and consists of an upper step member 12 and a lower step member 13. Further, the tool box 11 included in the step device 6 is arranged in a space surrounded by the upper step member 12 and the lower step member 13.

  As shown in FIG. 4, the door of the tool box 11 is composed of a shutter 14 formed of an assembly of lightweight members called slats, for example. Each of the shutters 14 has a small roller 17 on each side surface, and the small roller 17 slides smoothly along the guide rails 15 provided on both side surfaces of the tool box 11 and the guide rollers 16. It has become. The guide rail 15 and the guide roller 16 described above constitute a guide mechanism for guiding the shutter 14.

  A shutter lock mechanism 18 is provided at the lower end of the shutter 14. As shown in FIG. 5, the shutter lock mechanism 18 is attached to a seat plate 21, a hook 22 that is attached to the seat plate 21 and is rotatable, and an inner bottom plate of the tool box 11. The engaging portion 25 and the key hole 23 are configured to have a locking function. Further, a handle 24 is provided below the shutter 14.

  3 and 4 show the state when the tool box 11 is closed, while FIGS. 6 and 7 show the state when the tool box 11 is opened. As shown in FIGS. 6 and 7, when the tool box 11 is fully opened, an opening 26 is formed on the front surface of the tool box 11 and an opening 27 is also formed on the upper surface. The opening 26 is formed between the upper step member 12 and the lower step member 13.

  Next, the use of the tool box 11 configured as described above will be described.

  The tool box 11 is mainly used as a storage box for storing tools necessary for machine maintenance, spare parts such as hoses, and the like. When the article is stored in the tool box 11, first, a key is inserted into the key hole 23, the hook 22 is turned, the hook 22 and the engaging portion 25 are disengaged and unlocked, and then the handle 24. Use to slide up. Further, after reaching the upper step member 12, the shutter 14 is pushed along the guide rail 15 and the guide roller 16 toward the back side of the tool box 11, and the storage formed by the back surface portion 19 and the bottom surface portion 20. The tool box 11 is fully opened. When the shutter 14 is stored, the upper guide rail 15 of the tool box 11 and the seat plate 21 shown in FIG. 5 interfere with each other, so that the shutter 14 does not move further in the direction of the storage unit.

  When closing the shutter 14, contrary to the above, the seat plate 21 at the end of the shutter 14 is gripped and pulled toward the front so that the shutter 14 does not open unintentionally during travel and work. The shutter 14 is locked using the lock mechanism 18. That is, the hook 22 is rotated by inserting the key into the key hole 23 and turning it, and the hook 22 is engaged with the engaging portion 25.

  According to the present embodiment configured as described above, the door of the tool box 11 includes the shutter 14, so that the door of the tool box 11 can be prevented from jumping out of the vehicle body. Thereby, interference with the door, ie, the shutter 14, and the surrounding object can be prevented, and damage to the tool box 11 can be prevented.

  In addition, when the article is put in and out of the tool box 11, the swivel body 2 is swung in an arbitrary direction so that the obstacle above the tool box 11 is eliminated, so that the opening 26 on the front surface and the opening 27 on the upper surface of the tool box 11 Can be easily accommodated in the tool box 11 from each of these openings 26 and 27.

  Further, this embodiment can be modified while maintaining compatibility with the conventional step device. That is, the tool box 11 having the shutter 14 provided in the present embodiment and the conventional tool box can be used interchangeably, and the options can be further expanded.

  Furthermore, the weight of the tool box 11 can be reduced depending on the material of the shutter constituent member.

  The present invention is not limited to the above-described embodiment, and the upper surface of the tool box 11 is set higher than the upper step member 12 or the lower surface of the tool box 11 is set lower than the lower step member 13. May be. In the case of such a configuration, it is possible to mount the tool box 11 having a larger point as long as the interference with the revolving unit 2 and the ground is taken into consideration, and the article storage capacity can be increased.

  In the above-described embodiment, the opening direction of the shutter 14 of the tool box 11 is upward as in the general shutter 14. However, the present invention is not limited to this, and a dead space around the tool box 11 is utilized. Then, it may be opened downward or leftward and rightward. When opening in the left-right direction, it may be double-opening or single-opening.

DESCRIPTION OF SYMBOLS 1 Work apparatus 2 Turning body 3 Front wheel 4 Rear wheel 5 Traveling body 6 Step apparatus 10 Step 11 Tool box 12 Upper step member 13 Lower step member 14 Shutter (door)
DESCRIPTION OF SYMBOLS 15 Guide rail 16 Guide roller 17 Small roller 18 Shutter lock mechanism 19 Back surface part 20 Lower surface part 25 Engagement part 26 Opening part (front surface)
27 Opening (top)

Claims (5)

  A traveling body having a front wheel and a rear wheel, a revolving body disposed on the traveling body, a working device attached to the revolving body, a step and a tool box disposed between the front wheel and the rear wheel A wheel type work machine having a door having an opening on the front surface and having a door capable of closing the opening, wherein the door comprises a shutter. In the wheel type work machine according to claim 1,
The tool box has an opening on its upper surface, and the shutter is configured to be capable of closing both the opening on the front surface and the opening on the upper surface. In the wheel type work machine according to claim 2,
The tool box includes a guide mechanism that guides the shutter on both sides of the inside of the tool box, and has a storage portion for the shutter on a back surface portion and a bottom surface portion. In the wheel type work machine according to claim 3,
A lower step member and an upper step member are provided between the front wheel and the rear wheel, the front opening is formed between the lower step member and the upper step member, and the upper surface of the tool box is A wheeled work machine characterized by being set higher than the upper step member. In the wheel type work machine according to claim 3,
A lower step member and an upper step member are provided between the front wheel and the rear wheel, the front opening is formed between the lower step member and the upper step member, and the lower surface of the tool box is formed on the lower surface of the tool box. A wheel type work machine characterized by being set lower than the lower step member.

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