JP6232248B2 - Small swivel excavator - Google Patents

Description

The present invention relates to a small-swivel mini excavator that includes a protective guard that protects a driver's seat from earth and sand, wood, and the like, and is equipped with a felling device that is used for felling wood.

  Construction machines, such as mini excavators, have a small turn, and there has been a desire to use this mini excavator for logging timber in a forest with dense trees. A conventional construction machine of this type is disclosed in Patent Document 1. This prior art is constituted by a mini excavator. The mini excavator includes a main body, that is, a swivel body, a work device that is attached to the front side of the swivel body and that can perform operations such as sandwiching wood and excavating earth and sand, a driver seat provided on the swivel body, and the driver seat. It is placed in front of the car and has a protective guard that protects the driver's seat from earth and sand, wood, etc.

  In such a mini excavator, a logging device used for logging of wood, for example, a chainsaw may be mounted. In this case, in a small machine such as a mini excavator formed so that the swivel body swivels within the vehicle width, such as the small rear swivel type and the ultra small swivel type, the equipment arrangement space on the swivel body is extremely large. The chainsaw is usually placed near the feet of the driver's seat on the floor where the driver's seat is installed.

JP 2006-63686 A

  As described above, in the conventional technology in which the chainsaw, that is, the felling device is placed near the foot of the driver's seat, there is an operation pedal at the foot of the driver's seat. May occur. In addition, there is a concern that parts arranged around the felling device may be damaged by contact of the saw portion of the felling device.

The present invention has been made from the above-described situation in the prior art, and an object of the present invention is to provide a small swivel type mini excavator in which a felling device can be mounted without being placed near the feet of a driver's seat. .

In order to achieve this object, the present invention comprises a main body, a working device attached to the front side of the main body, a driver seat provided in the main body, and a protective guard disposed in front of the driver seat. in the small swing radius type mini excavator to swing body in a vehicle width with pivots, wherein the protective guard before and upper explosion protection guard disposed above the handrail as a boundary, the lower explosion protection guard disposed below It consists of a, the lower protective guard, and a network unit, while holding the net unit consists of a frame which is fixed in front of the driver's seat, the front side portion of the frame of the lower explosion protection guard It is characterized in that the holding portion for holding such a chainsaw its longitudinal direction along the vertical direction are provided.

Small Thus, the present invention constructed, restricted by the fact that so as to hold the chain saw in the holding portion provided on the front side of the side frame of the lower explosion protection guard is a working device side, the equipment arrangement space In a swivel type mini excavator, the chainsaw can be mounted without being placed near the feet of the driver's seat. As a result, the chain saw can be prevented from coming into contact with the operation pedal and surrounding parts arranged near the feet of the driver's seat. Further, since providing the holding portion for holding the chainsaw on the front side of the side frame of the lower explosion protection guard, never field operator sitting in the driver's seat is blocked by the chainsaw. Therefore, it is possible to secure a good front view when working with the working device of the operator sitting in the driver's seat.

According to the present invention, steering of the mini excavator of the small swing radius type being constrained in the space, can avoid contact with the parts chainsaw is located near the foot of the operating pedal and the driver's seat, made the traditional caused fear It prevents erroneous operation of the work a pedal and, together with the near feet wide rather can ensure the driver's seat, it is possible to ensure good forward field of view during the work of the operator sitting in the driver's seat.

The first embodiment of the mini excavator of the small swing radius type according to the present invention is shown to a side view. It is a perspective view which shows the turning body part of the mini excavator which concerns on 1st Embodiment. It is a principal part expansion perspective view of FIG. It is a perspective view which shows the state which hold | maintained the chainsaw in the holding | maintenance part with which 1st Embodiment is equipped. It is a perspective view which shows the principal part of 2nd Embodiment of this invention. It is a perspective view which shows the turning body part which comprises the principal part of 3rd Embodiment of this invention. It is a principal part expansion perspective view of FIG. It is a perspective view which shows the state which hold | maintained the chainsaw in the holding part with which 3rd Embodiment is equipped. It is a perspective view which shows the turning body part which comprises the principal part of 4th Embodiment of this invention. It is a perspective view which shows the state which hold | maintained the chainsaw in the holding part with which 4th Embodiment is equipped.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a small turning type mini excavator according to the present invention will be described with reference to the drawings.

1 first embodiment of the shows to a side view of a compact excavator of the small swing radius type according to the present invention, FIG 2 is a perspective view showing a swivel body portion of the mini-excavator according to a first embodiment, FIG. 3 in FIG. 2 FIG. 4 is a perspective view showing a state in which a chainsaw is held by a holding part provided in the first embodiment.

As shown in FIG. 1, the small-swivel mini excavator according to the first embodiment of the present invention includes a traveling body 1, a revolving body 2 disposed on the traveling body 1, and a front position of the revolving body 2. And a working device 3 that is rotatable in the vertical direction. The traveling body 1 and the revolving structure 2 constitute the main body of this mini excavator. The work device 3 includes a boom 4 attached to the swing body 2, an arm 5 attached to the tip of the boom 4, and a clamping tool 6 attached to the tip of the arm 5 and capable of clamping wood or the like. Yes. A driver's seat 7 is disposed on the revolving frame 2 a of the revolving structure 2. Further, for example, a four-pillar canopy 8 is provided so as to cover the driver's seat 7.

  As shown in FIGS. 2 to 4, a protective guard that protects the driver's seat 7 from earth, sand, wood, and the like is provided in front of the driver's seat 7. This protective guard is, for example, an upper protective guard 10 that is arranged above and below the front handrail 8c with both ends fixed to each of a pair of front struts 8a, 8b of the four-pillar canopy 8 and forms an upper part. And a lower protective guard 11 forming a lower portion.

  The upper protective guard 10 includes a protective body, for example, a net 10b and a frame 10a that holds the net 10b. The frame 10a is fixed to each of the front posts 8a and 8b of the four-pillar canopy 8. Similarly, the lower protective guard 11 also includes a protective body, for example, a net 11b and a frame 11a that holds the net 11b. The frame 11a is provided integrally with each of the front posts 8a and 8b of the four-pillar canopy 8. The support portions 12 and 13 are fixed via attachment portions 14.

  This 1st Embodiment is provided with the holding part 20 holding the logging device used for logging of wood, for example, the chainsaw 25, on the front side of the protective guard which is the working device 3 side, for example, on the front side of the lower protective guard 11, for example. ing.

  As shown in FIG. 3 and the like, the holding unit 20 includes a U-shaped upper frame body 21 and a lower frame body 22, respectively. The upper frame body 21 and the lower frame body 22 are the frame 11 a of the lower protective guard 11. For example, by welding.

  As shown in FIG. 4, the chainsaw 25 includes a gripping portion 25a gripped by a felling operator and an automatic saw 25b. The gripping portion 25a is placed on the upper frame body 21 of the holding portion 20, and the automatic saw 25b. Is held by the holding portion 20 in a state of being inserted into the upper frame body 21 and the lower frame body 22. That is, the holding unit 20 is configured to hold the chainsaw 25 so that the longitudinal direction of the chainsaw 25 is along the vertical direction.

  In the first embodiment configured as described above, the chain saw 25 is held by the holding portion 20 provided on the front surface side of the lower protective guard 11 which is the working device 3 side. The chain saw 25 can be mounted without any problems. As a result, the chainsaw 25 can be prevented from coming into contact with the operation pedal and surrounding parts near the feet of the driver's seat 7, the operation pedal can be prevented from being erroneously operated by the chainsaw 25, and placed near the feet of the operation pedal and the driver's seat. It is possible to prevent damage to the parts by the chain saw 25. Moreover, this 1st Embodiment can ensure widely the step vicinity of the driver's seat 7 with which the mini excavator carrying the chainsaw 25 is equipped. Thereby, this invention can improve the operativity of the operator who sat in the driver's seat 7. FIG.

  Further, in the first embodiment, since the holding portion 20 is fixed to the frame 11a of the lower protective guard 11 having high strength, the chainsaw 25 can be held in the holding portion 20 in a stable state over a long period of time. A highly reliable mini excavator can be realized.

  In the first embodiment, the holding part 20 is fixed to the lower part of the protective guard, that is, the lower protective guard 11, and the chain saw 25 is held by the holding part 20. In the upper protective guard 10, the view of the operator sitting in the driver's seat 7 is not blocked by the chainsaw 25. Therefore, it is possible to ensure a good front view when working with the working device 3 of the operator sitting in the driver's seat 7.

  FIG. 5 is a perspective view showing a main part of the second embodiment of the present invention.

  In the second embodiment shown in FIG. 5, mounting brackets 33a and 33b are welded to the frame 11a of the lower protective guard 11, and the upper frame 31 and the lower part are connected to these mounting brackets 33a and 33b via bolts 34a and 34b. The frame 32 is detachably provided. Other configurations are the same as those of the first embodiment described above.

  The second embodiment configured as described above can obtain the same effects as those of the first embodiment, and when the chain saw 25 does not need to be held, the upper frame 31 constituting the holding portion 30 and By removing the lower frame body 32 from the mounting brackets 33a and 33b, it is possible to secure a good view through the lower protective guard 11 of the operator sitting on the driver's seat 7.

  6 is a perspective view showing a revolving body portion constituting the main part of the third embodiment of the present invention, FIG. 7 is an enlarged perspective view of the main part of FIG. 6, and FIG. 8 is a chainsaw in the holding part provided in the third embodiment. It is a perspective view which shows the state hold | maintained.

  In the third embodiment shown in FIGS. 6 to 8, the upper frame body 36 and the lower frame body 37 constituting the holding portion 35 are fixed to the front strut 8 a of the four-pillar canopy 8. It consists of what hold | maintains the chain saw 25 so that a longitudinal direction may follow an up-down direction. The upper frame body 36 includes a cylindrical portion 36a into which the automatic saw 25b of the chain saw 25 is inserted, and a mounting portion 36b for attaching the upper frame body 36 to the front column 8a. Similarly, the lower frame body 37 also includes a cylindrical portion 37a into which the automatic saw 25b of the chain saw 25 is inserted, and a mounting portion 37b for attaching the lower frame body 37 to the front column 8a. Other configurations are the same as those of the first embodiment.

  In the third embodiment configured as described above, the upper frame body 36 and the lower frame body 37 of the holding portion 35 are fixed to the front strut 8a of the four-pillar canopy 8, and the chainsaw 25 is held by the holding portion 35. In addition to the same effects as the first embodiment, the view of the operator sitting in the driver's seat 7 is not blocked by the chainsaw 25. Therefore, it is possible to ensure a good front view when working with the working device 3 of the operator sitting in the driver's seat 7. Further, since the holding portion 35 is fixed to the front strut 8a having high strength, the chain saw 25 can be mounted in a stable state for a long period of time in the mini excavator that is restricted by the equipment arrangement space. A highly reliable mini excavator can be realized.

  FIG. 9 is a perspective view showing a revolving body portion constituting a main part of the fourth embodiment of the present invention, and FIG. 10 is a perspective view showing a state in which a chainsaw is held by a holding portion provided in the fourth embodiment.

  In the fourth embodiment shown in FIGS. 9 and 10, the holding portion 40 that holds the chainsaw 25 is fixed to the frame 11a of the lower protective guard 11, and the mounting table 41 on which the gripping portion 25a of the chainsaw 25 is placed. The first frame 42 and the second frame 43 into which the automatic saw 25b of the chain saw 25 is inserted are provided in parallel to the mounting table 41. The holding part 40 of the fourth embodiment is configured to hold the chain saw 25 so that the longitudinal direction of the chain saw 25 is along the left-right direction. Other configurations are the same as those of the first embodiment. The fourth embodiment configured as described above can also obtain the same effect as that of the first embodiment.

2 Revolving body (main body)
2a slewing frame 3 working device 7 driver's seat 8 4 pillar canopy 8a front post 8b front post 8c front handrail 10 upper protective guard 11 lower protective guard 11a frame 11b net (protective body)
20 Holding part 21 Upper frame 22 Lower frame 25 Chainsaw (cutting equipment)
25a Gripping part 25b Automatic saw 30 Holding part 31 Upper frame 32 Lower frame 33a Mounting bracket 33b Mounting bracket 34a Bolt 34b Bolt 35 Holding part 36 Upper frame 36a Cylindrical part 36b Mounting part 37 Lower frame 37a Cylindrical part 37b Mounting portion 40 Holding portion 41 Mounting table 42 First frame 43 Second frame

Claims (1)

A small rotating body swivel within a vehicle width comprising a main body, a working device attached to the front side of the main body, a driver seat provided in the main body, and a protective guard disposed in front of the driver seat. In a swivel mini excavator,
The protection guard is made from the front and upper explosion protection guard disposed above a boundary handrail, the lower explosion protection guard disposed below,
The lower guard is composed of a net and a frame that holds the net and is fixed in front of the driver seat.
Wherein the front side portion of the frame of the lower explosion protection guard, the small swing radius type mini excavator, wherein a holding portion for holding such a chainsaw its longitudinal direction along the vertical direction are provided.