JP5984773B2 - Mini excavator - Google Patents

Description

The present invention is attached to the front is provided in a forward position of the driver's seat handrail relates to Minishobe Le having a claw accommodating part Hiratsume or excavation teeth are accommodated.

  There exists a thing shown by patent document 1 as this kind of prior art. This Patent Document 1 discloses a mini excavator that is a small machine. A front handrail is provided in front of the driver's seat of this mini excavator, and a flat claw or a bottomed claw storage portion for storing a flat claw or excavation claw selectively attached to the adapter of the bucket is attached to the front handrail. Yes.

  For example, when performing ground leveling work, a flat claw is attached to the adapter of the bucket, and when excavating work such as earth and sand, excavation claw is attached to the bucket adapter instead of the flat claw. For example, when the flat claw is attached to the bucket adapter, the excavation claw removed from the bucket adapter is stored in the claw storage portion, and when the excavation claw is attached to the bucket adapter, the flat claw removed from the bucket adapter is stored. The nail is stored in the nail storage unit.

JP 2011-12513 A

  In the prior art provided with the above-described claw storage unit, deposits such as earth and sand adhering to the bucket and granular materials to be excavated may spill into the claw storage unit during excavation work. In addition, deposits attached to the flat claws and excavation claws may be peeled off in the claw storage portion when the flat claws and excavation claws are stored in the claw storage portion. Accordingly, the conventional technology tends to deposit deposits such as deposits and particulates in the nail storage.

  Therefore, according to the prior art, when flat claws and excavation claws are stored in the claw storage part, the flat claws and excavation claws are lifted by deposits accumulated in the claw storage part, and large vibrations accompanying work are transmitted to the mini excavator. Sometimes, there is a concern that flat claws or excavated claws will jump out of the nail storage part and fall. Moreover, the removal of the deposits in the nail storage unit becomes complicated, and there is a problem that the efficiency of cleaning work on the nail storage unit cannot be expected.

The present invention has been made based on the above-described situation in the prior art, and an object of the present invention is to provide a mini excavator that can accommodate flat claws or excavated claws while suppressing the amount of deposits in the claw accommodating portion.

To this end, work the present invention, including a swing body, attached to the swing body, boom, an arm, a bucket with a flat pawl and adapter any of the excavation teeth are selectively attached An apparatus, a driver seat provided on the revolving structure , a canopy covering the driver seat, a front handrail provided at a front position of the driver seat, and the flat claws or the excavation claws provided on the front handrail In a mini excavator in which the boom is supported by the swivel body at a position in front of the front handrail , the claw storage portion is a rear plate fixed to the front handrail, The rear plate plate is provided with an inclined plate that is inclined downward, and an opening portion is provided below the claw storage portion to communicate the inside and the outside of the claw storage portion. Yes.

In the present invention configured as described above, since an open part for communicating the inside and the outside of the claw storage part is provided below the claw storage part, the adhering matter adhering to the bucket with the work, or Even if the granular material to be excavated spills into the nail storage part, or the adhering material adhering to the flat nail or the excavating nail falls off in the nail storage part, the adhering material or granular material is removed from the rear plate and the inclined surface. It can be smoothly guided downward by the plate and dropped from the opening portion to the outside of the nail storage portion. That is, according to the present invention, flat claws or excavated claws can be stored in the nail storage portion while suppressing deposits in the nail storage portion.

The present invention, in the above invention, the pawl housing portion, said front handrail to be fixed has a front plate disposed on the front side position of the rear face plate, said by the bottom and the inclined plate of the upper SL front plate It is characterized by forming an open part. The present invention configured in this manner smoothly stores nail deposits and particulates spilled into the nail storage part, or from the opening formed by the lower end of the front plate and the inclined plate, in the nail storage part. It can be discharged to the lower front side.

  Further, the present invention is characterized in that, in the above invention, the rear plate and the inclined plate are provided separately, and a fastener for fastening the rear plate and the inclined plate to each other is provided. In the present invention configured as described above, a plurality of inclined plates having different inclination angles are prepared, and any one of them is selectively fastened to the rear plate, so that the size of the open portion can be set according to the attached matter. Can be adjusted.

  Moreover, the present invention is characterized in that, in the above invention, the claw storage part has a locking part to which a lower end of the flat claw stored in the claw storage part is locked. In the present invention configured as described above, when the flat nail is stored in the nail storage portion, the lower end of the flat nail is locked to the locking portion, so that the flat nail is stably held in the nail storage portion. Can do.

  Moreover, the present invention is characterized in that, in the above invention, the inclined plate has a plurality of holes. The present invention configured as described above can drop the deposits and particulates spilled into the nail storage unit, or the deposits that have been peeled off in the nail storage unit from the plurality of holes of the inclined plate to the outside. Efficiency can be increased.

  According to the present invention, flat claws or excavated claws can be stored in the nail storage portion while suppressing deposits in the nail storage portion. That is, according to the present invention, the flat claws and the excavated claws can be stably held in the claw storage portion without fear of dropping due to the floating caused by the conventional deposits. Further, according to the present invention, the deposits in the nail storage portion can be suppressed to be small, so that the cleaning of the nail storage portion is simplified as compared with the conventional case, and the efficiency of the cleaning operation of the nail storage portion can be improved.

One embodiment of the compact excavator according to the present invention is shown to a side view. 1 is a front view of a mini excavator according to a first embodiment. It is a front view which shows the front handrail and nail | claw storage part with which 1st Embodiment is equipped. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a perspective view which shows the state which accommodated the flat nail | claw in the nail | claw accommodating part with which 1st Embodiment is equipped. It is a principal part expanded side sectional view of FIG. It is a perspective view which shows the state which accommodates an excavation nail | claw in the nail | claw storage part with which 1st Embodiment is equipped. It is a figure which shows the principal part of 2nd Embodiment of this invention, (a) A figure is a perspective view which fractured | ruptured and showed one part, (b) A figure is an enlarged side view of (a) figure. It is a figure which shows the principal part of 3rd Embodiment of this invention, (a) A figure is a perspective view, (b) A figure is an expanded sectional side view of (a) figure. It is a figure which shows the principal part of 4th Embodiment of this invention, (a) A figure is a perspective view which fractured | ruptured and showed one part, (b) A figure is an expanded sectional side view of (a) figure. It is a figure which shows the principal part of 5th Embodiment of this invention, and is the figure shown excluding a part of nail | claw accommodating part.

Embodiments of a mini excavator according to the present invention will be described below with reference to the drawings.

Figure 1 is a side view showing a mini excavator constituting one embodiment of the present onset bright, FIG. 2 is a front view of a compact excavator according to the first embodiment.

Engaging Lumi Nishoberu the present invention, as shown in FIGS. 1 and 2, the run Gyotai 1, a swing body 2 arranged on the traveling body 1, is attached to the swing body 2, times in the vertical direction It is movable, and is provided with a working device 3 that performs earth excavation work, earth sand leveling work, and the like. The traveling body 1 and the revolving body 2 constitute a vehicle body. The work device 3 includes a boom 4 attached to the revolving structure 2, an arm 5 attached to the tip of the boom 4, and a bucket 6 attached to the tip of the arm 5. The bucket 6 has an adapter to which either a flat claw 21 (to be described later) used for leveling work such as earth and sand or a drilling claw 25 used for excavation work such as earth and sand is selectively attached.

A driver's seat 7 is arranged on the revolving structure 2, and a canopy 8 is provided so as to cover the driver's seat 7. A front handrail 10 is attached to the front side position of the driver seat 7, and a lateral handrail 11 is attached to the right side of the driver seat 7. A claw storage portion 20 in which a flat claw 21 or a digging claw 25 described later is stored is provided below the front handrail 10. As shown in FIGS. 1 and 2, the boom 4 is supported by the swing body 2 at a position in front of the front handrail 10.

  In general, a mini excavator is a small machine and is limited in the space for mounting the equipment. In connection with this, the front handrail 10 is utilized as an installation place of the nail storage part 20. In addition, by providing the nail storage portion 20 below the front handrail 10, a wide working field of view when operating by an operator sitting on the driver's seat 7 is secured.

  3 is a front view showing the front handrail and the claw storage portion provided in the first embodiment, FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, FIG. 5 is a cross-sectional view taken along the line BB in FIG. The perspective view which shows the state which accommodated the flat nail in the nail | claw storage part with which embodiment is equipped, FIG. 7 is a principal part expanded side sectional view of FIG. 6, FIG. 8 shows excavation claw in the nail | claw storage part with which 1st Embodiment is equipped. It is a perspective view which shows the state to accommodate.

  The above-described front handrail 10 is manufactured by bending a pipe member, for example, and as shown in FIGS. 3 and 6, for example, the first standing portion 10a and the first standing portion 10a are continuously provided. The inclined portion 10b, the second standing portion 10c disposed so as to face the first standing portion 10a, and the laterally extending portion 10d that is connected to the inclined portion 10b and the second standing portion 10c and extends in the horizontal direction. It consists of. The lower end 10 a 1 of the first standing portion 10 a and the lower end 10 c 1 of the second standing portion 10 c are welded to the holding plate 22. As shown in FIG. 4, the holding plate 22 has a plurality of bolt holes 22a, 22b, 22c, and 22d. The holding plate 22 is fixed to the floor plate of the driver's seat 7 by bolts inserted into these bolt holes 22a to 22d.

  In addition, the bracket 24 utilized when fixing the front handrail 10 and the horizontal handrail 11 to each other is attached to the first standing portion 10a of the front handrail 10. Moreover, the L-shaped illumination bracket 23 is attached over the horizontal portion 10d and the second standing portion 10c. An illumination device (not shown) that illuminates the front of the mini excavator is attached to the illumination bracket 23.

  In the first embodiment, an opening portion 30 that communicates the inside and the outside of the claw storage portion 20 is provided below the claw storage portion 20.

As shown in FIGS. 4 and 5, the claw storage portion 20 is fixed to the front handrail 10 and is disposed at the front position, and the front surface 20 a is opposed to the front panel 20 a and is disposed at the rear position. It has a rear plate 20b fixed to the handrail 10 and an inclined plate 20c that is connected to the rear plate 20b and is inclined downward toward the front side. The rear plate 20b and the inclined plate 20c are manufactured by bending a single long plate. The open portion 30 described above is formed by the lower end 20a3 of the front plate 20a and the inclined plate 20c.

As shown in FIG. 4, a bent portion 20 a 1 that forms one end portion of the front plate 20 a of the claw storage portion 20 is welded to the first standing portion 10 a of the front handrail 10, and a bent portion that forms the other end portion. 20 a 2 is welded to the second upright portion 10 c of the front handrail 10. To form a bent portion 20a1 and 20a2 in the front plate 20 a, these bent portions 20a1 and 20a2, the first erected portions 10a respectively by welding to the second upright portion 10c, Hiratsume 21 and the excavation teeth 25 storage spaces are formed. Further, one end 20b1 of the rear plate 20b of the claw storage part 20 is welded to the first standing part 10a of the front handrail 10, and the other end 20b2 is welded to the second standing part 10c of the front handrail 10. ing.

  As shown in FIG. 7, the flat claw 21 stored in the claw storage unit 20 includes a plate member 21 a and a claw member 21 b provided integrally with the plate member 21 a, and the claw member 21 b is the bucket 6. The above-mentioned adapter is attached. In the first embodiment, when the flat nail 21 is stored in the nail storage unit 20 with the space between the front plate 20a and the rear plate 20b of the nail storage unit 20, for example, the plate member 21a is pressed against the front plate 20a. The claw member 21b is set to a size that is locked and held by the rear plate 20b. Accordingly, as shown in FIG. 7, the lower end 20 a 3 of the plate member 21 a of the flat claw 21 has a holding configuration in which it faces the opening portion 30.

  As shown in FIG. 8, when the excavation claw 25 is stored in the claw storage unit 20 instead of the flat claw 21, the front side part and the rear side part of the excavation claw 25 are connected to the front plate 20 a of the claw storage unit 20. The lower end of the excavation claw 25 is retained by the inclined plate 20c of the claw storage portion 20 and is held by the rear plate 20b.

  In the first embodiment configured as described above, an opening 30 that connects the inside and outside of the claw storage unit 20 is provided below the claw storage unit 20, so that it adheres to the bucket 6 with the work. Even if deposits or granular materials to be excavated spill into the nail storage unit 20 or deposits adhering to the flat claws 21 or the excavation nails 25 fall off in the nail storage unit 20 Can be dropped from the opening 30 to the outside of the nail storage 20. That is, according to the first embodiment, the flat claws 21 or the excavation claws 25 can be stored in the nail storage unit 20 while suppressing the deposits in the nail storage unit 20 to be small.

  Thereby, 1st Embodiment can be stably hold | maintained at the nail | claw storage part 20 without the fear of the fall by the lift resulting from the deposit | stain of the flat nail | claw 21 or the excavation nail | claw 25. FIG. Moreover, since this 1st Embodiment can suppress the deposit of the nail | claw storage part 20 less, cleaning of the nail | claw storage part 20 becomes easy and the efficiency of the cleaning operation | work of this nail | claw storage part 20 can be improved. it can.

  Further, in the first embodiment, the deposits and particulates spilled into the nail storage unit 20 or the deposits that have been peeled off in the nail storage unit 20 are smoothly lowered to the lower front side of the nail storage unit 20 by the inclined plate 20c. It can be discharged.

  FIGS. 9A and 9B are diagrams showing the main part of the second embodiment of the present invention, wherein FIG. 9A is a perspective view with a part broken away, and FIG. 9B is an enlarged side view of FIG.

  In the second embodiment shown in FIG. 9, a rear plate 20b and an inclined plate 20c constituting the claw storage portion 20 are provided separately, and a fastener for fastening the rear plate 20b and the inclined plate 20c to each other, for example, A plurality of bolts 26 are provided. Other configurations are the same as those of the first embodiment described above.

  In the second embodiment configured as described above, the same effect as that of the first embodiment can be obtained, and a plurality of inclined plates 20c having different inclination angles are prepared, and any one of them is selectively provided on the rear plate. By fastening to 20b, the magnitude | size of the open part 30 can be adjusted according to a deposit | attachment.

  10A and 10B are diagrams showing the main part of the third embodiment of the present invention. FIG. 10A is a perspective view, FIG. 10B is an enlarged side sectional view of FIG. It is a figure which shows the principal part of a form, (a) A figure is a perspective view which fractured | ruptured and showed part, (b) A figure is an expanded sectional side view of (a) figure.

  In the third and fourth embodiments shown in FIGS. 11 and 12, the claw storage portion 20 has a locking portion to which the lower end 21a1 of the flat claw 21 stored in the claw storage portion 20 is locked. doing. Other configurations are the same as those of the first embodiment described above.

  In the third embodiment shown in FIG. 10, a locking portion in which the lower end 21 a 1 of the flat claw 21 stored in the claw storage portion 20 is locked to the lower end of the front plate 20 a of the claw storage portion 20, that is, a locking piece 20 d. It has.

  The fourth embodiment shown in FIG. 11 is a locking portion in which the lower end 21a1 of the plate member 21a of the flat claw 21 is locked at the boundary between the rear plate 20b and the inclined plate 20c of the claw storage portion 20, that is, the locking A stepped portion 20e is formed.

  In the third embodiment and the fourth embodiment shown in FIGS. 10 and 11, in addition to obtaining the same operational effects as the first embodiment, when the flat nail 21 is stored in the nail storage portion 20, Since the lower end 21a1 of the plate member 21a of the flat claw 21 is locked to the locking piece 20d or the locking step portion 20e, the flat claw 21 can be stably held in the claw storage portion 20.

  FIG. 12 is a view showing a main part of the fifth embodiment of the present invention, and is a view excluding a part of the nail storage part. FIG. 12 shows the inclined plate 20c excluding the front plate 20a of the claw storage portion 20 in order to clarify the inclined plate 20c.

  In the fifth embodiment shown in FIG. 12, the inclined plate 20c has a plurality of holes 20c1. Other configurations are the same as those of the first embodiment described above.

  In the fifth embodiment, the same effects as those of the first embodiment can be obtained, and the deposits and particulates that have fallen into the nail storage unit 20 or the deposits that have been peeled off in the nail storage unit 20 can be removed. The plurality of holes 20c1 of the inclined plate 20c can also be dropped to the outside, and the discharge efficiency of adhered matter or particulate matter can be increased.

2 Revolving body (car body)
DESCRIPTION OF SYMBOLS 3 Work apparatus 6 Bucket 7 Driver's seat 10 Front handrail 10a 1st standing part 10c 2nd standing part 20 Claw storage part 20a Front plate 20a1 Bending part 20a2 Bending part 20a3 Lower end 20b Rear surface plate 20b1 End part 20b2 End part 20c Inclined board 20c 20c1 hole 20d locking piece (locking portion)
20e Locking step (locking part)
21 flat claw 21a plate member 21a1 lower end 21b claw member 25 excavation claw 26 bolt (fastener)
30 Opening part

Claims (5)

A turning body, attached to the swing body, boom, arm and flat claws and a working device including a bucket having either selectively attached adapter excavation teeth, the driver's seat provided in the revolving body A canopy that covers the driver's seat, a front handrail provided at a position in front of the driver's seat, and a nail storage portion that is provided on the front handrail and that stores the flat claws or the excavated claws , In the mini excavator in which the boom is supported by the swivel body at a position in front of the front handrail ,
The claw storage portion includes a rear plate fixed to the front handrail, and an inclined plate that is connected to the rear plate and is inclined downward.
A mini-excavator characterized in that an opening part is provided below the claw storage part for communicating the inside and the outside of the claw storage part. The mini excavator according to claim 1,
The pawl accommodating portion includes, characterized in that the formation of the opening by the said front handrail to be fixed has a front plate disposed on the front side position of the rear face plate, the lower end of the upper SL front plate and the inclined plate Mini excavator to do . The mini excavator according to claim 2,
A mini excavator , wherein the rear plate and the inclined plate are provided separately, and a fastener for fastening the rear plate and the inclined plate to each other is provided. The mini excavator according to claim 2 ,
The claw accommodating part, mini excavator, wherein a lower end of the housing has been the flat nail the nail containing portion has a locking portion to be locked. The mini excavator according to claim 2 ,
The inclined plate has a plurality of holes, and is a mini excavator .

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