JP2011247058A - Construction machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide construction machinery, in consideration of its components: hoist attachments utilized when hoisting a protecting body of an operator seat and working lights for lighting a working direction, enables protection of the outside of the working lights with a small number of members.SOLUTION: The present invention is embodied by, for example, a compact excavator, and includes: a canopy 6 surrounding an operator seat 5 on a revolving body 2 for protecting an operator sitting on the operator seat 5; and a first and a second hoist attachments 10a, 11a and a first and a second working lights 10c, 11c which are provided in the upper part of the canopy 6, the first and the second working lights 10c, 11c being disposed near inner sides of the first and the second hoist attachments 10a, 11a, respectively; and a first and a second brackets 10b, 11b for holding the first and the second working lights 10c, 11c, respectively and for being fixed to the first and the second hoist attachments 10a, 11a, respectively.

Description

  The present invention relates to a protector that protects a driver's seat, for example, a construction machine such as a mini excavator provided with a suspension on the top of a canopy.

  There exists a thing shown by patent document 1 as this kind of construction machine. This Patent Document 1 includes a traveling body, a revolving body provided on the traveling body, and a working device provided on the revolving body so as to be rotatable in the vertical direction and including a boom, an arm, a bucket, and the like. A mini excavator is disclosed. This prior art includes a protector for protecting a driver's seat arranged on a revolving structure, for example, a canopy main body via a wire inserted through a suspension hole of the canopy main body, and a canopy main body, for example. The vehicle body including can be suspended.

  Further, Patent Document 2 discloses a construction machine such as a mini excavator, which is provided with a light for illuminating the working device direction, that is, a work light. The prior art disclosed in Patent Document 2 has a configuration in which a work lamp is attached to a ceiling surface of a canopy via a light bracket. In addition, the outer side part of the both sides of a work lamp is the state exposed to the open space.

JP 2000-273909 A JP 2006-322315 A

  In a construction machine, when it is intended to realize the lifting operation of a protector that protects a driver's seat such as a canopy and the securing of illumination with respect to the working device direction, a suspension shown in Patent Document 1 is provided on the ceiling of the protector. It is conceivable to provide a combination with the work lamp disclosed in Patent Document 2. However, simply combining the prior arts shown in Patent Documents 1 and 2 will expose the outer portion of the work lamp shown in Patent Document 2 to an open space, so that the work lamp is not turned when turning. There is a concern of contact with surrounding obstacles and damage. In order to eliminate such a concern, it is necessary to provide a member that protects the outer side of the work lamp. That is, in the case of taking into account the conventional techniques disclosed in Patent Documents 1 and 2, a protective member for preventing the work lamp from being damaged is required, which may increase the manufacturing cost of the construction machine.

  The present invention has been made from the above-described state of the art, and an object of the present invention is to include a lifting tool that is used when lifting a protector that protects a driver's seat, and a work lamp that illuminates the working device. In view of this, an object of the present invention is to provide a construction machine capable of realizing protection of the outer portion of the work lamp with a small number of members.

  In order to achieve this object, a construction machine according to the present invention is provided so as to surround a revolving structure, a working device attached to the revolving structure, a driver seat provided on the revolving structure, and the driver seat. A protector for protecting the operator sitting in the driver's seat; a suspension provided on the protector for use in lifting the protector; and an illumination for the working device direction provided on the protector In the construction machine having at least one work lamp that performs the above, the work light is disposed in the vicinity of the inside of the both sides of the suspension, and the work light is held and fixed to the suspension. It is characterized by having a bracket.

  According to the present invention configured as described above, the protector that protects the driver's seat can be lifted via the lifting tool, and the direction of the work device attached to the revolving structure can be illuminated by the work light. In addition, since the work lamp is disposed in the vicinity of the inside of the hanger through the bracket fixed to the hanger, the hanger can be used as a protective member for the outer portion of the work lamp. Thereby, protection of the outer side part of a work lamp can be implement | achieved with few members.

  Further, the present invention is the above invention, wherein the construction machine includes a mini excavator, and the protector includes a support having a standing part and a horizontal part connected to the standing part via a curved part. It consists of a canopy and is characterized in that the suspension is provided on the curved portion of the support column.

  According to the present invention configured as described above, since the bending portion for connecting the standing portion and the horizontal portion of the support column of the canopy is located in the vicinity of the ceiling portion of the canopy, the hanger provided on the bending portion near the ceiling portion. As a result, a stable lifting operation of the canopy can be realized, and the working device direction can be reliably illuminated by the work lamp provided in the curved portion near the ceiling.

  Further, the present invention is the above invention, wherein the work lamp is disposed at a front side position relative to a center line in the front-rear direction of the hanger, and the center line position of the hanger, or a rear side position relative to the center line position. Further, the present invention is characterized in that a suspension hole is provided through which a wire used for lifting the canopy is inserted.

  The present invention configured as described above can prevent interference between the wire inserted into the suspension hole of the suspension tool and the work lamp when the canopy is lifted. Thereby, the stable lifting operation | movement of a canopy is realizable.

  Further, according to the present invention, in the above invention, the canopy includes a first support column and a second support column arranged in parallel in the left-right direction so as to surround the driver's seat, A first suspension is provided at the curved portion where the portion is continuously provided, a second suspension is provided at the curved portion where the standing portion and the horizontal portion of the second support column are continuously provided, and the first suspension is provided inside the first suspension. The first work lamp is arranged via the bracket, and the second work lamp is arranged inside the second suspension tool via the second bracket.

  The present invention configured as described above has a stable canopy lifting operation via the first lifting device and the second lifting device, and good illumination with respect to the working device direction via the first working light and the second working light. Securing the outer portion of the first work lamp with the first suspension, and protecting the outer portion of the second work lamp with the second suspension. it can.

  Further, the present invention is the above invention, wherein each of the first suspension and the second suspension is formed in a curved shape having a convex front edge, and the rear edge is formed by the first support column and the first suspension. It is formed in a concave curved shape corresponding to the shape of the curved portion of the corresponding column among the two columns, the upper edge is formed in a linear shape along the horizontal direction, and the whole is made of a flat plate member, Each of the first bracket and the second bracket includes a vertical portion fixed to a corresponding suspension of the first suspension and the second suspension, the first work lamp, and the second work lamp. It is characterized by comprising an L-shaped member including a horizontal portion for holding a corresponding work lamp.

  In the present invention configured as described above, the first suspension and the second suspension, to which the corresponding brackets of the first bracket and the second bracket are fixed, respectively, are curved portions of the first support column and the second support column of the canopy. Therefore, each of the first suspension device and the second suspension device can be stably attached to the corresponding first support column and second support column of the canopy. Thereby, the highly reliable attachment structure of the 1st work lamp and the 2nd work lamp can be realized via the 1st bracket and the 2nd bracket. In addition, since each of the first hanging tool and the second hanging tool is formed by a flat plate member, and each of the first bracket and the second bracket is formed by an L-shaped member, the first operation is performed. The mounting structure of the lamp and the second work lamp can be simplified. Furthermore, since each of the first bracket and the second bracket is formed of an L-shaped member, the second work can be performed with the first bracket by, for example, changing the orientation of the first bracket and attaching it to the second lifting device. The lamp can be held, and the first work lamp can be held by the second bracket by changing the direction of the second bracket and attaching the lamp to the first suspension. That is, when installing the first work lamp and the second work lamp, the first work lamp and the second work lamp can be installed without paying attention to selecting either the first bracket or the second bracket. it can.

  In the construction machine according to the present invention, a work light for illuminating the work device direction is disposed in the vicinity of the inside of both sides of a lifting tool used for lifting a protector that protects an operator sitting in a driver's seat. At the same time, since it has a bracket that holds the work light and is fixed to the suspension, there are a hanging tool that is used when lifting the protector that protects the driver's seat, and a work light that illuminates the working device. In consideration of the provision, the hanger can be utilized as a protective member for the outer portion of the work lamp, and protection of the outer portion of the work lamp can be realized with a small number of members. Accordingly, it is possible to suppress an increase in the manufacturing cost of the construction machine, which is a concern when the lifting tool for lifting the protector and the work lamp for illuminating the working device are provided.

It is a side view which shows the mini excavator which comprises one Embodiment of the construction machine which concerns on this invention. It is a side view which shows the canopy with which this embodiment is equipped. It is the perspective view which looked at the canopy with which this embodiment is equipped from the front side. It is the perspective view which looked at the canopy with which this embodiment is equipped from the upper part. It is a perspective view which shows the work light attachment structure with which this embodiment is equipped. It is a figure which shows the hanging tool and work light which comprise the work light attachment structure with which this embodiment is equipped, (a) A figure is a front view, (b) A figure is a side view, (c) A figure is a top view. It is a side view which shows the state which lifted up the canopy with which this embodiment is equipped in the case of maintenance inspection work.

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

  FIG. 1 is a side view showing a mini excavator constituting one embodiment of a construction machine according to the present invention.

  The mini excavator according to the present embodiment is provided with a traveling body 1, a revolving body 2 disposed on the traveling body 1, and a swiveling body 2 that is pivotable in the vertical direction, and includes a boom 3a, an arm 3b, and a bucket. And a work device 3 including 3c. A blade 4 is provided at a front position of the traveling body 1. Further, a driver's seat 5 is arranged on the revolving structure 2, and a protector for protecting an operator sitting on the driver's seat 5, that is, a canopy 6 is provided so as to surround the driver's seat 5.

  2, 3, and 4 are views showing a canopy provided in the mini excavator according to the present embodiment, FIG. 2 is a side view, FIG. 3 is a perspective view seen from the front side, and FIG. 4 is a perspective view seen from the upper side. It is.

  As shown in FIG. 2, the canopy 6 provided in the present embodiment is fixed to the floor 7 on which the driver's seat 5 described above is placed. A side wall 8 is fixed on the floor 7.

  The canopy 6 includes a support column having a standing portion and a horizontal portion that is connected to the standing portion via a bending portion. That is, as shown in FIGS. 3 and 4, the first support column 6 a and the second support column 6 b made of round pipes are arranged in parallel in the left-right direction so as to surround the driver seat 5 described above. The first support column 6a has a standing portion 6a1 disposed on the front side and a horizontal portion 6a2 that is connected to the standing portion 6a1 via a curved portion 6a3. The 2nd support | pillar 6b is set to the shape dimension equivalent to the 1st support | pillar 6a. That is, this 2nd support | pillar 6b is also equipped with the standing part 6b1 and the horizontal part 6b2 similar to the 1st support | pillar 6a, and the curved part 6b3 which connects these standing part 6b2 and the horizontal part 6b2. Further, both end portions are held by the horizontal portion 6a2 of the first support column 6a and the horizontal portion 6b2 of the second support column 6b, and a top plate 6c that constitutes a ceiling portion is provided. In addition, the handle 9 which makes it easy for the operator to get on the floor 7 is provided in the standing part 6a1 of the first support column 6a.

  As shown in FIGS. 3 and 4, the first work lamp mounting structure 10 is provided on the curved portion 6a3 of the first column 6a, and the second work lamp mounting structure 11 is provided on the curved portion 6b3 of the second column 6b. The first work light mounting structure 10 and the second work light mounting structure 11 are features of the mini excavator according to the present embodiment.

  As shown in FIG. 5, the mini excavator according to the present embodiment is configured so that the first work lamp 10 c and the second work lamp 11 c are respectively used when the canopy 6 is lifted. A first bracket 10b for holding the first work lamp 10c and a second bracket 11b for holding the second work lamp 11c are provided in the vicinity of the inside of each of both side portions of the tool 11a.

  The first hanging tool 10a included in the first work lamp mounting structure 10 is fixed to the curved portion 6a3 of the first column 6a of the canopy 6 by welding, for example, and the second hanging lamp included in the second work lamp mounting structure 11 is used. The tool 11a is being fixed to the curved part 6b3 of the 2nd support | pillar 6b of the canopy 6, for example by welding. As shown in FIG. 4, another suspension 15 is provided at the rear position of the horizontal portion 6a2 of the first column 6a, and another suspension 16 is disposed at the rear position of the horizontal portion 6b2 of the second column 6b. Each is fixed by welding.

  As shown in FIG. 6 (b), the first hanging tool 10a has a hanging hole 10a1 through which a wire used for lifting the canopy 6 is inserted, and the front edge 10a2 has a convex curved shape. The rear edge 10a3 is formed into a concave curved shape corresponding to the shape of the curved portion 6a3 of the first support column 6a, the upper edge 10a4 is formed into a linear shape along the horizontal direction, and the entire plate is flat. It consists of members. The upper edge 10a4 of the first hanger 10a described above is, for example, in the vicinity of the height position of the top plate 6c and slightly lower than the top plate 6c, as shown in FIG. It is set to become.

  As shown in FIGS. 6A and 6C, the first bracket 10b for holding the first work lamp 10c includes a vertical portion 10b1 fixed to the first suspension 10a by a bolt 13, and the vertical portion 10b1. And an L-shaped member including a horizontal portion 10b2 for holding the first work lamp 10c. As shown in FIG. 6A, a nut 14 that is screwed into the screw portion 10b1 in a state where the screw portion 10c1 provided in the lower portion of the first work lamp 10c is inserted into a hole formed in the first bracket 10b. The first work lamp 10c is fixed to the horizontal portion 10b2 of the first bracket 10b. The second bracket 11b that holds the second work lamp 11 is set to have the same shape and dimension as the first bracket 10b, for example. That is, the second bracket 11b is also composed of an L-shaped member having a vertical portion and a horizontal portion equivalent to those in the first bracket 10b.

  As shown in FIGS. 6 (b) and 6 (c), the first work lamp 10c is disposed at a position on the front side of the center line 12 in the front-rear direction of the first hanger 10a. The suspension hole 10a1 is provided at the position of the center line 12 as shown in FIG. 6 (b). The suspension hole 10a1 may be provided slightly behind the center line 12 when the shape of the first suspension tool 10a is set large. Although not shown in the figure, the second work lamp 11c is also arranged at a position in front of the center line in the front-rear direction of the second hanger 11a, and the suspension hole 11a1 of the second hanger 11a is provided at the center line position, for example. It is.

  The height positions of the upper surfaces of the first work lamp 10c and the second work lamp 11c are the upper edges of the first hanger 10a and the second hanger 11a as illustrated in FIGS. It is set to a height position substantially equal to 10a4 or the like.

  In the mini excavator according to the present embodiment configured as described above, when working at night or the like, the work device 3 is illuminated by illuminating the first work light 10c and the second work light 11c. Desired work such as earth and sand excavation work by driving 3 can be performed without hindrance.

  Further, for example, in the maintenance and inspection work of a control valve (not shown) arranged below the floor 7 of the mini excavator according to the present embodiment or a pipe connected to the control valve, as shown in FIG. In the maintenance / inspection service base, etc., each of the suspension hole 10a1 of the first suspension tool 10a included in the first work lamp mounting structure 10 and the suspension hole 11a1 of the second suspension tool 11a included in the second work lamp attachment structure 11 The wire 17 or the like is inserted into the ring-shaped metal fitting 19 with the wire 17 or the like being inserted into the respective suspension holes of the other lifting tools 15 and 16 shown in FIG. A hook 20 of a crane device is engaged with the ring-shaped metal fitting 19 to lift a structure including the canopy 6 and the floor 7, for example. As a result, a control valve (not shown) and a pipe portion connected to the control valve are exposed, and maintenance and inspection work of the desired control valve or the pipe portion can be performed.

  According to the mini excavator according to the present embodiment configured as described above, as described above, the canopy that protects the driver's seat 5 via the first and second suspension members 10a and 11a and the other suspension members 15 and 16 is used. 6 can be lifted, and the direction of the work device 3 attached to the revolving structure 2 can be illuminated by the first and second work lights 10c and 11c. In addition, the first and second work lights 10c and 11c are respectively connected to the first bracket 10b and the second bracket 11b fixed to the second hanging tool 11a through the first bracket 10b and the second bracket 11b. The first and second suspension tools 10a and 11a are used as protective members for the corresponding first and second work lamps 10c and 11c because they are arranged in the vicinity of the corresponding ones of the second suspension tools 10a and 11a. Each can be used. Thereby, protection of the outer side of each of the first and second work lamps 10c and 11c can be realized with a small number of members. Therefore, the production cost of the mini excavator concerned when the first and second suspension tools 10a and 11a for lifting the canopy 6 and the first and second work lights 10c and 11c for illuminating the working device 3 are provided. Soaring can be suppressed.

  Further, the curved portions 6a3 and 6b3 for connecting the standing portions 6a1 and 6b1 of the first and second support columns 6a and 6b of the canopy 6 and the horizontal portions 6a2 and 6b2 are located near the ceiling of the canopy 6, that is, the top plate 6c. Therefore, stable lifting operation of the canopy 6 can be realized by the first and second lifting tools 10a and 11a provided on the bending portions 6a3 and 6b3 near the top plate 6c, and the curve near the top plate 6c is provided. The direction of the work device 3 can be reliably illuminated by the first and second work lights 10c and 11c provided in the portions 6a3 and 6b3, and work by driving the work device 3 can be performed efficiently.

  In addition, the first and second work lamps 10c and 11c are arranged in front of the center line 12 in the front-rear direction of the first and second suspension tools 10a and 11a, and the above-described center line 12 position or center line 12 is disposed. Since the suspension holes 10a1 and 11a1 through which the wire 17 and the like utilized when the canopy 6 is lifted are provided at the rear side of the position, the suspension holes 10a1 and 11a1 of the first and second suspension tools 10a and 11a are provided in the suspension holes 10a1 and 11a1. Interference between the inserted wire 17 and the like and the first and second work lamps 10c and 11c can be prevented. Thereby, the stable lifting operation | movement of the canopy 6 is realizable.

  In addition, the first and second suspensions 10a and 11a to which the first and second brackets 10b and 11b are fixed correspond to the curved portions 6a3 and 6b3 of the first and second support columns 6a and 6b of the canopy 6, respectively. Since it is formed in a shape, each of the first and second suspension members 10a and 11a can be stably attached to the corresponding first and second support columns 6a and 6b of the canopy 6, respectively. Thereby, a highly reliable mounting structure for the first and second work lamps 10c and 11c can be realized via the first and second brackets 10b and 11b. Moreover, since each of the 1st, 2nd hanging tools 10a and 11a is formed with a flat plate member, and each of the 1st and 2nd brackets 10b and 11b is formed with the L-shaped member, The first and second mounting structures 10 and 11 of the first and second work lamps 10c and 11c can have a simple configuration, and are highly practical.

  Further, since each of the first and second brackets 10b and 11b is formed by an L-shaped part having the same shape and dimension, for example, by changing the direction of the first bracket 10b and attaching it to the second suspension 11a. The second work lamp 11c can be held by the first bracket 10b, and conversely, by changing the direction of the second bracket 11b and attaching it to the first suspension 10a, the second bracket 11b can The work lamp 10c can be held. That is, when installing the first and second work lamps 10c and 11c, the first and second work lamps 10c and 11c can be mounted without paying attention to selecting either the first or second bracket 10b or 11b. It can hold | maintain and the operation | work which attaches the 1st, 2nd work lamps 10c and 11c can be performed easily.

  In the above-described embodiment, two work lights, that is, the first and second work lights 10c and 11c are provided. However, the corresponding work is performed by illuminating the direction of the work device 3 with only one work light. In a case where the operation can be performed without any problem, only one of the first work lamp 10c and the second work lamp 11c may be provided.

  In the above description, the first and second suspension members 10a and 11a are formed by flat plate members, and the first and second brackets 10b and 11b are formed by L-shaped members. The second suspension tools 10a and 11a and the first and second brackets 10b and 11b are not limited to be formed in such a shape. Various shapes can be set according to the type of construction machine.

  In the above description, in addition to the first and second suspension members 10a and 11a, other suspension members 15 and 16 are also provided at the rear positions of the horizontal portions 6a2 and 6b2 of the first and second support columns 6a and 6b of the canopy 6. The canopy 6 is lifted by four-point suspension through the wire 17 and the wire 18 and the like. However, when the weight balance can be secured, the first suspension member 15 and 16 are not provided, and the first suspension member 15 and 16 are not provided. The canopy 6 may be lifted by two-point suspension through the second suspension tools 10a and 11a.

  In the above description, the construction machine is configured by a mini excavator having the canopy 6. However, the protector that protects the operator sitting in the driver's seat 5 may be configured by a mini excavator including a cab or a cab. In this case, a structure corresponding to the first work lamp mounting structure 10 and the second work lamp mounting structure 11 described above is mounted on or near the ceiling on the front side of the cab. That's fine. Furthermore, the present invention is not limited to being constituted by a mini excavator, and can be constituted by various construction machines having a protection body that protects an operator sitting on a driver's seat on a revolving structure.

DESCRIPTION OF SYMBOLS 1 Traveling body 2 Revolving body 3 Working device 5 Driver's seat 6 Canopy (protective body)
6a 1st strut 6a1 standing portion 6a2 horizontal portion 6a3 curved portion 6b second strut 6b1 standing portion 6b2 horizontal portion 6b3 curved portion 6c top plate 10 first work lamp mounting structure 10a first hanging tool 10a1 hanging hole 10a2 front end Edge 10a3 Rear edge 10a4 Upper edge 10b First bracket 10b1 Vertical portion 10b2 Horizontal portion 10c First work lamp 11 Second work lamp mounting structure 11a Second suspension 11a1 Suspension hole 11b Second bracket 11c Second work lamp 12 Center Wire 17 wire

Claims (5)

A revolving unit, a working device attached to the revolving unit, a driver's seat provided on the revolving unit, a protector provided to surround the driver's seat and protecting an operator sitting on the driver's seat, and In a construction machine that is provided on an upper part of a protector and includes a lifting tool that is used when lifting the protector, and at least one work lamp that is provided on the protector and illuminates the working device.
A construction machine characterized in that the work lamp is disposed in the vicinity of the inside of both sides of the suspension, and includes a bracket that holds the work lamp and is fixed to the suspension. The construction machine according to claim 1,
The construction machine consists of a mini excavator,
The protector comprises a canopy including a support having a standing part and a horizontal part connected to the standing part via a bending part,
A construction machine characterized in that the suspension is provided on a curved portion of the support column. The construction machine according to claim 2,
The work lamp is arranged at a position on the front side of the center line in the front-rear direction of the hanger, and is used for lifting the canopy at the center line position of the hanger or at a position rearward of the center line position. A construction machine characterized by a suspension hole through which a wire is inserted. The construction machine according to claim 3,
The canopy has a first support column and a second support column arranged in parallel in the left-right direction so as to surround the driver seat,
A first suspension is provided on the curved portion connecting the upright portion of the first column and the horizontal portion; a second suspension is provided on the curved portion connecting the upright portion of the second column and the horizontal portion;
A construction machine characterized in that a first work lamp is disposed inside the first suspension tool via a first bracket, and a second work lamp is disposed inside the second suspension tool via a second bracket. . The construction machine according to claim 4,
Each of the first suspender and the second suspender has a front end edge formed in a convex curved shape, and a rear end edge of the corresponding strut among the first strut and the second strut. It is formed in a concave curved shape according to the shape of the curved portion, the upper edge is formed in a linear shape along the horizontal direction, and the whole consists of a flat plate member,
Each of the first bracket and the second bracket includes a vertical portion fixed to a corresponding suspension of the first suspension and the second suspension, and the first work lamp and the second work lamp. A construction machine comprising an L-shaped member including a horizontal portion for holding a corresponding work lamp.

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