JP2016030945A - Construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction machine capable of easily handling a storage target stored in a base at a portion supporting a cab even when getting-on/off means is provided sideways of the cab.SOLUTION: A demolition machine 1 includes an upper frame 4, a cab 5 provided above the upper frame 4, and stairs 11 and 12. The upper frame 4 has a base 43 directly or indirectly supporting the cab 5. The base 43 is constituted by a hollow box capable of storing a storage target, and has an opening for handling the storage target on a side surface on which the stairs 11 and 12 are arranged. The stairs 11 and 12 are arranged in positions not closing the opening of the base 43.SELECTED DRAWING: Figure 1

Description

The present invention relates to a construction machine that accommodates an object to be accommodated in a base that supports a cab.

  2. Description of the Related Art Conventionally, a technique for storing a battery in a base portion of a cab support bracket that supports a cab in a work machine has been proposed. For example, in Patent Document 1, a battery (19) is housed in a base (17b) of a cab support bracket (17) that supports a movable cab (15) via a battery storage device (20) (Patent Document 1). 1 (see FIG. 1).

JP 2014-70425 A

  By the way, in construction machines, depending on the work content, it may be required to secure a work view from a high viewpoint. Therefore, the inventor of the present application recalled that a spacer is inserted below the lifting device that supports the cab so that the cab can be lifted and the cab is raised.

  However, when the spacer is inserted below the cab lifting device, the cab is located at a relatively high place even when the cab is in the lowest position, so that getting on and off the cab may be inconvenient.

  Then, the inventor of this application recalled newly providing the boarding / alighting means for getting in / out of a cab to the side of a cab.

  However, as described above, an object to be accommodated such as a battery may be accommodated in the base (base) that supports the cab. Therefore, when the boarding / alighting means is provided on the side of the cab, there may be a case where it is difficult to handle the object to be accommodated in the base.

  Accordingly, the present invention provides a construction machine that can easily handle an object to be accommodated in a base of a portion that supports the cab even when a boarding / exiting means is provided on the side of the cab. With the goal.

  In order to achieve the above object, the present invention is a construction machine, comprising an upper frame, a cab disposed above the upper frame, and a boarding / alighting provided on a side of the cab to get on / off the cab. The upper frame has a base that directly or indirectly supports the cab, and the base is configured by a hollow box shape that can accommodate an object to be accommodated, and the getting-on / off means is disposed. The construction machine is characterized in that an opening for handling the object to be accommodated is provided on a side surface on the side, and the getting-on / off means is arranged at a position where the opening is not blocked.

  The getting-on / off means extends obliquely upward from the rear to the front of the cab, and the getting-on / off means has the rear end forward of the opening when viewed from the front of the opening. It is preferable that it is comprised so that it may be arrange | positioned.

  Moreover, it is preferable that the said boarding / alighting means is fixed to the surface of the front side of the said base.

  The boarding / alighting means preferably includes a first boarding / alighting part supported by the cab and moving up and down together with the cab, and a second boarding / alighting part fixed to the front surface of the base and supported by the base. .

  According to the construction machine of the first aspect, since the getting-on / off means is arranged at a position that does not block the opening of the base, the accommodation object accommodated in the base can be easily handled.

  According to the construction machine of the second aspect, since the rear end of the getting-on / off means is arranged in front of the opening, the rear end of the getting-on / off means and the opening need not overlap.

  According to the construction machine of the third aspect, it is possible to more reliably fix the getting-on / off means by using the front surface of the base having a relatively large space.

  According to the construction machine of the fourth aspect, since the first boarding / alighting part is supported by the cab and the second boarding / alighting part is supported by the base, it is possible to reduce the moment applied to the part that supports the boarding / alighting means. .

The side view which shows the demolition machine by embodiment of this invention. The perspective view which shows the upper frame of a demolition machine. The III arrow line view of FIG. The side view which shows the demolishing machine of the state where the cab was lifted to the upper part. The perspective view which looked at the demolition machine from the left rear. The front view which shows a demolition machine.

<1. Embodiment>
A construction machine according to an embodiment of the present invention will be described with reference to FIGS. Hereinafter, as an example of a construction machine, a demolition machine 1 including a vertical elevator cab will be described as an example. For convenience of explanation, in the drawings, the front-rear direction and the left-right direction are appropriately defined as necessary.

  As shown in FIG. 1, the demolition machine 1 includes a crawler type lower traveling body 2 and an upper swing body 3.

  The upper turning body 3 is mounted on the lower traveling body 2 and can turn through a turning device. Specifically, as shown in FIG. 1, the upper swing body 3 includes an upper frame 4, a cab 5, a cab elevating device 6, and a spacer 7. In addition, although an attachment, a clamp arm (presser), etc. are actually attached, illustration and description are abbreviate | omitted here.

  As shown in FIG. 2, the upper frame 4 includes a center section 41 and a base 43.

  The center section 41 includes a center section bottom plate 411 supported by the turning device, and two left and right center section vertical plates 412 and 413 erected on the center section bottom plate 411.

  The base 43 is a member welded to the left center section vertical plate 412. Specifically, the base 43 includes an upper plate 431, a lower plate 432, and two vertical plates 433 and 434 opposed to the front and rear, and is configured in a hollow box shape. Note that a vertical plate is not provided on the left side surface of the base 43 and is open. Hereinafter, the open portion on the left side surface of the base 43 is referred to as an opening 60.

  As shown in FIG. 3, the battery 70 is accommodated in the base 43 as an object to be accommodated. Specifically, the battery 70 is placed on a slide-type battery support bracket 80 that can be pulled out to the front (left side of the dismantling machine 1) through the opening 60. The battery support bracket 80 includes a tray portion 82 on which the battery 70 is placed and a handle portion 81 that is used when the tray portion 82 is pulled out. A slide pad 85 for sliding the battery support bracket 80 is provided below the battery support bracket 80.

  As shown in FIGS. 1 and 5, when using the dismantling machine 1, a dedicated cover 43 </ b> C is attached to the opening 60 of the base 43 in order to prevent external impact. Therefore, when handling the battery 70 in the base 43, the operator needs to remove the dedicated cover 43C once.

  Refer to FIG. 1 again. The cab 5 is disposed above the upper frame 4. Here, as shown in FIG. 1 (lowermost position) and FIG. 4 (uppermost position), the cab 5 is configured as a vertical elevator cab capable of moving up and down in the vertical direction.

  The cab elevating device 6 is a device for elevating in the vertical direction while supporting the cab 5.

  The spacer 7 is a member inserted between the base 43 of the upper frame 4 and the cab elevating device 6 in order to raise the cab 5. By inserting the spacer 7, the cab elevating device 6 is raised by the height of the spacer 7, and as a result, the cab 5 is also raised.

  Thus, in this embodiment, since the spacer 7 is inserted between the base 43 of the upper frame 4 and the cab lifting device 6, the cab lifting device 6 is raised by the height of the spacer 7. As a result, the cab 5 can be lifted to a higher position, and a good work field of view can be provided to the worker.

  However, as described above, when the spacer 7 is inserted, since the cab 5 is located at a relatively high place even when the cab 5 is in the lowest position, it may be difficult to get on and off the cab 5. .

  Therefore, in this embodiment, as shown in FIGS. 1, 4, 5, and 6, the dismantling machine 1 is provided with stairs 11 and 12 on the side of the cab 5 as means for getting on and off the cab 5. Yes.

  As shown in FIG. 1, when the cab 5 exists in the lowest position, the stairs 11 and 12 are extended diagonally upward toward the front from the back of the cab 5. As shown in FIG. Moreover, as shown in FIG. 5, the handrails 11A and 12A are provided in the stairs 11 and 12, respectively. Further, on the lower side of the bottom tread 121 of the stairs 12, a footrest 13 that overlaps with the bottom tread 121 in the vertical direction is provided.

  The stairs 11 is connected to and supported by the lower side surface 51 of the cab 5. Since this staircase 11 is fixed to the lower part 51 of the side surface of the cab 5, as shown in FIG.

  On the other hand, as shown in FIG. 6, the staircase 12 is connected (fixed) to and supported by a vertical plate 433 on the front side of the base 43 via an attachment portion 44. Specifically, the mounting portion 44 includes a plate 441 and mounting plates 442 and 443 having a substantially right triangle shape in plan view. Then, the attachment portion 44 is attached to the staircase 12, and the attachment portion 44 is bolted to the vertical plate 433, whereby the staircase 12 is connected to the vertical plate 433. Since the stairs 12 are not connected to the cab 5, as shown in FIG.

  As shown in FIGS. 1 and 4, the staircase 12 is configured such that the rear end 12 </ b> R is disposed in front of the opening 60 when viewed from the front of the opening 60.

  As described above, in this embodiment, the staircases 11 and 12 as the getting-on / off means do not block the opening 60 (the steps 11 and 12 do not overlap with the opening 60 when viewed from the front of the opening 60). Therefore, operations such as maintenance and replacement of the battery 70 accommodated in the base 43 can be easily performed.

  Further, as shown in FIG. 6, since the staircase 12 is connected (fixed) to and supported by the vertical plate 433 on the front side of the base 43, the staircase is utilized by using the front side surface of the base 43 having a relatively large space. 12 can be securely fixed.

  In the present embodiment, the stairs 11 is connected to and supported by the lower side surface 51 of the cab 5, while the stairs 12 is connected to and supported by the front vertical plate 433 constituting the base 43 of the upper frame 4. Therefore, the moment applied to the portion that supports the getting-on / off means is dispersed in two places, and the moment applied to the part that supports the getting-on / off means can be reduced as compared with the case where the getting-on / off means is supported at one place. .

<2. Modification>
The construction machine by this invention is not limited to embodiment mentioned above, A various deformation | transformation and improvement are possible in the range described in the claim.

  For example, in the above embodiment, the case where the present invention is applied to the dismantling machine 1 is illustrated, but the present invention is not limited to this, and the present invention may be applied to other construction machines provided with a cab entry / exit means. .

  In the above embodiment, the case where the present invention is applied to the boarding / exiting means constituted by the two steps 11 and 12 is exemplified, but the present invention is not limited to this, and the present invention is applied to a series of steps. May be. Also in this case, the staircase constituted by a series is arranged at a position where the opening of the base including the accommodation target is not blocked.

  Moreover, in the said embodiment, although the case where the spacer 7 was provided between the cab raising / lowering apparatus 6 and the base 43 was illustrated, it is not limited to this. For example, even if the construction machine does not have a spacer, the present invention can be applied as long as it has a landing means such as stairs on the side of the cab.

  Moreover, in the said embodiment, although the case where this invention was applied to the demolition machine 1 provided with the cab raising / lowering apparatus 6 was illustrated, it is not limited to this. For example, even in a construction machine that does not have a cab lifting device, the present invention is applied as long as the object to be stored is stored in the base that supports the cab and the cab is provided with a getting-on / off means. Is possible.

  In the above embodiment, as illustrated in FIG. 3, the case where the battery 70 can be pulled out via the slide mechanism (the battery support bracket 80 and the slide pad 85) is illustrated, but the present invention is not limited thereto. For example, the battery 70 may be fixed inside the base 43.

  Moreover, in the said embodiment, the opening part 60 was provided in the left side surface of the base 43 (FIG.2 and FIG.3), and the case where the staircase 12 was fixed to the vertical board 433 of the front side of the base 43 was illustrated (FIG. 6). However, it is not limited to this. For example, while providing a vertical plate on the left side surface of the base, an opening may be provided on the front side of the base by eliminating the vertical plate on the front side of the base, and the stairs may be fixed to the left side surface of the base. Even in such a modification, it is possible to easily handle an object to be accommodated in the base because the opening of the base can be prevented from being blocked by the stairs.

  Moreover, in the said embodiment, although two steps 11 and 12 were employ | adopted as a boarding / alighting means, it is not limited to this, For example, you may make it employ | adopt a slope.

  Moreover, in the said embodiment, as shown in FIG. 1, when viewed from the front of the opening part 60, the case where the rear end 12R of the staircase 12 and the opening part 60 did not overlap was illustrated, but it is not limited to this. For example, when the battery 70 (FIG. 3) is taken out, if the rear end of the stairs does not interfere with the battery 70, the rear end may overlap a part of the opening 60. For example, as in the above-described embodiment, if the trajectory of the battery 70 when the battery 70 slides on the slide pad 85 does not overlap the rear end of the stairs, the rear end overlaps a part of the opening 60. It may be. That is, the position where the opening of the present invention is not blocked is not only when the getting on / off means does not overlap the opening when viewed from the front of the opening, but also when the getting on / off means partially overlaps the opening. included.

  As described above, the construction machine according to the present invention can be applied to, for example, a dismantling machine in which a battery is stored in a base of a portion that supports a cab.

1 dismantling machine, 2 lower traveling body, 3 upper turning body, 4 upper frame, 5 cab,
6 cab lifting device, 7 spacer, 11, 12 stairs, 12R rear end, 13 footrest,
41 Center section, 43 base, 43C cover, 44 mounting section,
51 Lower side, 60 opening, 70 battery, 80 battery support bracket,
81 handle part, 82 tray part, 85 slide pad,
411 Center section bottom plate, 412 Center section vertical plate,
412,413 Center section vertical plate, 431 upper plate, 432 lower plate,
433, 434 vertical plate, 441 plate, 442, 443 mounting plate,

Claims (4)

A construction machine,
An upper frame,
A cab disposed above the upper frame;
Boarding / exiting means provided on the side of the cab to get on and off the cab;
With
The upper frame has a base that supports the cab directly or indirectly,
The base is configured by a hollow box shape that can accommodate an object to be accommodated, and has an opening for handling the object to be accommodated on a side surface on which the getting-on / off means is arranged,
The construction machine, wherein the getting-on / off means is arranged at a position where the opening is not blocked. The construction machine according to claim 1,
The getting-on / off means extends obliquely upward from the rear to the front of the cab,
The construction machine, wherein the getting-on / off means is configured such that the rear end is arranged in front of the opening when viewed from the front of the opening. In the construction machine according to claim 1 or 2,
The construction machine characterized in that the getting-on / off means is fixed to a front surface of the base. The construction machine according to claim 1,
The said boarding / alighting means has a 1st boarding / alighting part supported by the said cab, and raising / lowering with the said cab, and a 2nd boarding / alighting part fixed to the surface of the front side of the said base, and supported by the said base. Construction machinery.

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