JP4514696B2 - Construction machine rear console mounting structure - Google Patents

Construction machine rear console mounting structure Download PDF

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Publication number
JP4514696B2
JP4514696B2 JP2005348172A JP2005348172A JP4514696B2 JP 4514696 B2 JP4514696 B2 JP 4514696B2 JP 2005348172 A JP2005348172 A JP 2005348172A JP 2005348172 A JP2005348172 A JP 2005348172A JP 4514696 B2 JP4514696 B2 JP 4514696B2
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console
cab
floor
fixing
construction machine
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JP2007154453A (en
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馨 安田
惠介 田口
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株式会社小松製作所
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Description

  The present invention relates to a mounting structure for a rear console provided in a rear portion of a cab in a construction machine such as a wheel loader or a hydraulic excavator provided with a cab constructed by assembling a cab on a floor member and accommodating electrical components. Is.

  Conventionally, in a construction machine equipped with a cab constructed by assembling a cab to a floor member, it is intended to facilitate the assembling of the cab to the floor member and to make maximum use of the limited space in the cab. For example, Japanese Patent Application Laid-Open No. H10-228688 proposes the technology described above.

JP-A-5-79058

  In the cab (driver's seat) 100 according to Patent Document 1, as shown in FIG. 4, a seat is provided at a substantially central portion of a floor member (floor surface) 101 placed and fixed on a vehicle body (not shown). A part 102 is disposed, and a vehicle component housing part 103 is provided behind the seat part 102. The vehicle component housing part 103 is provided with a gate-shaped frame 105 standing on the floor member 101 so as to straddle the air conditioner 104, and a vehicle front-rear direction (left-right direction in the figure) above the gate-shaped frame 105. The bracket 107 is configured to be pivotally attached to the rear wall 106a of the cab 106 so that the rear end thereof is accessible.

  In the vehicle component housing part 103, the bracket 107 is rotated in the vehicle front direction (left direction in the figure), so that the entire bracket 107 is moved forward from the portal frame 105 as indicated by a solid line in the figure. It is supposed to be located in. Therefore, in this state, since a space is created at the rear of the cab 100, the cab 106 can be easily attached to the floor member 101 so as to be covered from above without contacting the bracket 107. Further, in a state where the bracket 107 is raised and turned to a state indicated by a two-dot chain line in the drawing by rotating the bracket 107 in the vehicle rearward direction (rightward in the drawing). The rear end of the bracket 107 overhangs rearward from the portal frame 105 so as to approach the rear wall 106a of the cab 106. Therefore, an electrical component such as a controller can be installed on the bracket 107, and the space can be effectively used up to the vicinity of the rear wall in the cab 100.

  However, the technique according to Patent Document 1 employs a structure in which the bracket 107 on which the electrical component is installed is attached only to the gate-shaped frame 105 that is erected on the floor member 101. It is necessary for the portal frame 105 to have sufficient strength to withstand the shock and the like. Therefore, for example, 1) a reinforcing member such as a rib is added to the portal frame 105, 2) the portal frame 105 is thickened, and 3) the width dimension L in the front-rear direction of the portal frame 105 is increased. Therefore, there is a problem that the structure is complicated and the weight is increased, and the space in the cab 100 is narrowed.

  The present invention has been made to solve such problems, and can facilitate the assembly of the cab to the floor member and effectively use the space in the cab, and has a simple structure and is lightweight. The purpose is to provide a rear console mounting structure for a construction machine that can be made compact.

In order to achieve the above object, a rear console mounting structure for a construction machine according to the present invention comprises:
A rear console mounting structure for a construction machine comprising a cab constructed by assembling a cab on a floor member, and a rear console mounted at the rear of the cab and accommodating electrical components,
The rear console is attached to the floor member via a supporting means that supports the rear console so that the rear surface of the rear console is tilted forward from an upright position close to the rear wall of the cab, and the rear console is in the upright position. The console is attached to the rear wall via a fixing means that is separably fixed to the rear wall (first invention).

  In the first invention, it is preferable that a holding means for holding the rear console in a predetermined position when the fixing of the rear console to the rear wall is released by the fixing means is provided (second invention). .

  In the first invention or the second invention, it is preferable that the wire harness connected to the electrical component is arranged so as to approach a rotation axis when the rear console tilts forward from the standing position (third invention).

  According to the present invention, when the cab is assembled to the floor member, the rear console is tilted forward in advance with the support means as a fulcrum. In this tilted state, the cab can be easily attached to the floor member so as to be covered from above without contacting the rear console. Further, after the cab is assembled to the floor member, the rear console is raised to a standing position where the rear surface of the rear console is close to the rear wall of the cab, and then fixed to the rear wall of the cab by fixing means. Therefore, the space can be effectively used up to the vicinity of the rear wall of the cab. In addition, the rear console is attached to the floor member via the support means, and to the rear wall of the cab via the fixing means. Therefore, it is necessary to excessively strengthen the rear console for measures such as vibration and shock during work. Therefore, the structure can be simplified, and the weight and size can be reduced.

  By the way, for example, when a wheel loader is loaded onto a trailer as a construction machine and transported, the transport height (the total height when loaded) is determined by the Vehicle Restriction Ordinance (Road Act), the Road Traffic Act, the Road Transport Vehicle Act, etc. In order to ensure that the wheel loader can be transported by trailer-connected vehicle without using the special vehicle traffic permit system so that the height limit value (3.8 m or less) is not exceeded. Sometimes transported with the cab removed from the cab. Therefore, by adopting a configuration in which holding means for holding the rear console in a predetermined position is provided when the rear console is fixed to the rear wall of the cab by the fixing means, during the transportation, The rear console is stabilized without flapping, and the wheel loader can be transported to the destination without damaging the electrical components.

  In addition, by adopting a configuration in which the wire harness connected to the electrical components is arranged so as to approach the rotation axis when the rear console tilts forward from the standing position, the wire can be used when the rear console tilts and stands up. Since an excessive pulling force does not act on the harness, the tilting / standing operation does not damage the wiring of the electrical component.

  Next, a specific embodiment of a rear console mounting structure for a construction machine according to the present invention will be described with reference to the drawings. Although the present embodiment is an example in which the present invention is applied to a wheel loader as a construction machine, the present invention is not limited to this, and the present invention is applied to a bulldozer, a hydraulic excavator, a rough terrain crane, or the like as a construction machine. Is possible. Further, the front / rear / left / right directions in the following description are made to coincide with the front / rear / left / right directions when the operator is seated on a seat portion to be described later.

  FIG. 1 is a side view showing a schematic structure of a cab according to an embodiment of the present invention. In FIG. 1, an exterior cover 30 described later is omitted for convenience of explanation.

  A driver's cab 1 according to this embodiment includes a floor member 2 that is placed and fixed on a vehicle body frame of a wheel loader (not shown) via a required mount, and a lower opening that opens to the floor member 2. The cab 3 is formed so as to substantially coincide with the outer periphery, and the floor member 2 is assembled so that the cab 3 is covered from above. In this cab 1, a seat portion 4 is disposed at a substantially central portion of the floor member 2, and a steering device 5, a main monitor 6, various pedal devices 7, etc. are disposed in front of the seat portion 4, A right console 8 in which a work machine operation device, a transmission operation device, and the like are housed in one cabinet is disposed on the right side of the seat portion 4, and a rear console that houses electrical components behind the seat portion 4. 9 is disposed.

  As shown in FIG. 2B, the rear console 9 includes a back plate 10 that is close to the rear wall 3 a of the cab 3 when the rear console 9 is in an upright state, and an upper end portion of the back plate 10. A top plate 11 and a bottom plate 12 extending forward from the lower portion and left and right side plates 13 and 14 extending forward from the left and right sides of the back plate 10 are connected to each other. As shown in FIG. 2A, electrical components such as a relay 15, controllers 16 and 17, and a fuse box 18 are mainly incorporated in the rear console 9 in a predetermined arrangement. In the present embodiment, the exterior cover 30 that covers the entire rear console 9 is provided separately from the rear console 9, and the lower end of the exterior cover 30 is bolted 31 to the floor member 2. The upper end is fixed to the rear wall 3 a of the cab 3 by a bolt 32. Necessary lids 19 and 20 are attached to the exterior cover 30 so as to be detachable so as to close necessary openings provided to correspond to the arrangement of the relay 15, the controllers 16 and 17, the fuse box 18, and the like. Thus, by removing the lids 19 and 20, the main electrical components such as the relay 15, the controllers 16 and 17 and the fuse box 18 can be easily accessed, and the main electrical components can be removed without removing the exterior cover 30. Maintenance and inspection can be performed.

  A pair of brackets 21, 21 protrude from the bottom surface of the bottom plate 12 of the rear console 9 at a predetermined interval in the left-right direction, while the pair of brackets 21, 21 protrude from the floor member 2. A pair of brackets 22 and 22 are erected so as to come into contact with the inner side surface of the front end of each of the brackets. The brackets 21 and 21 on the rear console 9 side and the brackets 22 and 22 on the floor member 2 side are predetermined in the front-rear direction. Are fastened by a front through-bolt 23 and a rear through-bolt 24 which are arranged with a spacing of. Here, in the bracket 21 attached to the rear console 9, the bottom plate 12 is attached to the front end of the bracket 22 attached to the floor member 2 by the front through bolt 23 and the rear through bolt 24. The base part on the side to be fixed is formed in an inverted L shape so as to protrude rearward (see FIG. 2B). Thus, a pocket S sufficient to receive a wire harness 28 described later is formed between the tip of the bracket 21 and the bottom plate 12.

  Further, a required fixing piece 25 is fixed to the top plate 11 and the left and right side plates 13 and 14 of the rear console 9 so as to protrude outward, while the rear wall 3a of the cab 3 is fixed to the rear wall 3a of the cab 3. The tapped block 26 in which a female screw is engraved is fixed so as to correspond to each of the required fixing pieces 25. Then, in the standing state position where the rear console 9 is erected so that the back plate 10 is close to the rear wall 3 a of the cab 3, the female screw of each tapped block 26 is passed through the hole drilled in each fixing piece 25. The rear console 9 is fixed to the rear wall 3a of the cab 3 by tightening the fixing bolt 27 that is screwed onto the rear console 9, while the rear console 9 can be separated from the rear wall 3a of the cab 3 by removing the fixing bolt 27. State. That is, the fixing bolt 27 serves as a fixing means for fixing the rear console 9 in the standing position to the rear wall 3a of the cab 3 in a separable manner.

  Here, when the front through bolt 23 is slightly loosened in a state where both the rear through bolt 24 and the fixing bolt 27 are removed, the rear console 9 is moved forward from the upright position to the front through bolt 23 at the center. (Of course, it is a premise that the exterior cover 30 is removed). In this case, the front through bolt 23 serves as a support means for supporting the rear console 9 so as to be able to tilt forward from the standing position. Hereinafter, the front through bolt 23 is referred to as a “pivot bolt 23”. Further, when the rear console 9 that is tilted forward is raised to the upright position and then the rear through bolt 24 is attached and tightened, the rear console 9 is fixed to the rear wall of the cab 3 by the fixing bolt 27. Even if it is not fixed to 3a, the rear console 9 can be held in the upright position. In this case, the rear through-bolt 24 holds the rear console 9 in a predetermined position (standing position) when the fixing bolt 27 is fixed to the rear wall 3a of the cab. It will serve as a means. Hereinafter, the rear through bolt 24 is referred to as a “holding bolt 24”.

  The wire harness 28 in which the wirings connected to the electrical components are bundled is attached to the rotation axis O when the rear console 9 tilts forward from the standing position, that is, the axis of the pivot bolts 23 and 23 arranged on the left and right. It arrange | positions so that it may approach to the corresponding axis line, and is being fixed to the baseplate 12 etc. via the required clamp member which is not shown in figure. Therefore, during the tilting / standing operation of the rear console 9, an excessive pulling force does not act on the wire harness 28, and thus the wiring of the electrical component is not damaged by the tilting / standing operation. As described above, since a pocket S sufficient to receive the wire harness 28 is formed between the tip of the bracket 21 and the bottom plate 12, the wire harness 28 is connected to the rear console 9 and the floor member 2. It can be put in between and finished beautifully in appearance, and the wire harness 28 can be brought closer to the rotation axis O.

  Next, the assembly operation of the cab will be described below with reference to FIGS.

(Assembling process of various devices and parts to the cab and floor members: see Fig. 3)
First, a steering device 5, various pedal devices 7, a seat portion 4, a right console 8, a rear console 9 and the like are predetermined on a floor member 2 mounted and fixed on a vehicle body frame of a wheel loader via a required mount. The main monitor 6 and the like are assembled to the front end portion of the cab 3. Here, the rear console 9 is assembled to the floor member 2 by temporarily tightening the left and right pivot bolts 23, 23 and tilting the rear console 9 forward with the pivot bolts 23, 23 as fulcrums. Is in a tilted state.

(Refer to FIGS. 1 to 3 for assembling the cab to the floor member)
Next, as shown in FIG. 3, the cab 3 is lifted by a heavy machine such as a crane (not shown) and is lowered straight from above the floor member 2. At this time, since the rear console 9 is in an inclined state, it can be easily lowered onto the floor member 2 without contacting the rear console 9 even if the cab 3 is lowered straight. When the cab 3 is suspended on the floor member 2 in this way, the cab 3 is fixed to the floor member 2 by a known means. After assembling the cab 3 to the floor member 2, the rear console 9 is erected with the left and right pivotal bolts 23, 23 as fulcrums, and then the rear console 9 is fixed to the rear wall 3 a of the cab 3 with fixing bolts 27. At the same time, the rear console 9 is fixed to the floor member 2 by tightening the pivot bolt 23 and the holding bolt 24 (see FIG. 1). Then, the exterior cover 30 is fixed to the floor member 2 and the rear wall 3a of the cab 3 with bolts 31 and 32, respectively (see FIG. 2).

  According to the present embodiment, the rear console 9 can be tilted forward when the cab 3 is assembled to the floor member 2, so that the cab 3 can be easily assembled to the floor member 2. Further, when the rear console 9 is fixed to the rear wall 3a of the cab 3, no dead space is generated between them, so that the space in the cab 1 can be used effectively. Further, since the rear console 9 is fixed to each of the rear wall 3a and the floor member 2 of the cab 3, it is not necessary to excessively strengthen the rear console 9 for measures such as vibration and shock during work. Simplification, light weight and compactness can be achieved.

  By the way, when a wheel loader is loaded on a trailer and transported, the transport height (total height when loaded) is a height limit value stipulated by the Vehicle Restriction Ordinance (Road Act), Road Traffic Act, Road Transport Vehicle Act, etc. In order to ensure that the wheel loader can be transported by trailer-coupled vehicle without using a special vehicle passage permission system, the cab from the wheel loader cab 1 is used. 3 may be transported with the 3 removed. In such a case, the rear console 9 is set in the standing position, and the holding bolt 24 is attached and tightened in addition to the pivot bolt 23. Thereby, since the rear console 9 is stably hold | maintained in a standing state position, a wheel loader can be transported to the destination, without the electrical component in the rear console 9 being damaged.

The side view showing the schematic structure of the cab which concerns on one Embodiment of this invention. Front view of rear console with exterior cover attached (a) and AA arrow view of (a) (b) The figure showing the state in the middle of assembling the cab to the floor member Illustration of prior art

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driver's cab 2 Floor member 3 Cab 3a Cab rear wall 9 Rear console 10 Back plate 15-18 Electrical component 23 Pivoting bolt (support means)
24 Holding bolt (holding means)
27 Fixing bolt (fixing means)
28 Wire harness

Claims (3)

  1. A rear console mounting structure for a construction machine comprising a cab constructed by assembling a cab on a floor member, and a rear console mounted at the rear of the cab and accommodating electrical components,
    The rear console is attached to the floor member through support means that supports the rear console so that the rear surface of the rear console is tilted forward from an upright position close to the rear wall of the cab, and the rear console is in the upright position. A rear console mounting structure for a construction machine, wherein the console is attached to a rear wall through a fixing means for separably fixing the console to the rear wall.
  2.   The rear console mounting structure for a construction machine according to claim 1, further comprising a holding means for holding the rear console in a predetermined position when the fixing of the rear console to the rear wall is released by the fixing means. .
  3.   The rear console mounting structure for a construction machine according to claim 1 or 2, wherein a wire harness connected to the electrical component is disposed so as to approach a rotation axis when the rear console tilts forward from the standing position. .
JP2005348172A 2005-12-01 2005-12-01 Construction machine rear console mounting structure Active JP4514696B2 (en)

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JP2005348172A JP4514696B2 (en) 2005-12-01 2005-12-01 Construction machine rear console mounting structure

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JP2005348172A JP4514696B2 (en) 2005-12-01 2005-12-01 Construction machine rear console mounting structure

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JP2007154453A JP2007154453A (en) 2007-06-21
JP4514696B2 true JP4514696B2 (en) 2010-07-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103958783A (en) * 2013-05-08 2014-07-30 株式会社小松制作所 Operation vehicle

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009068172A (en) * 2007-09-10 2009-04-02 Caterpillar Japan Ltd Controller arrangement structure of working machine
JP5058104B2 (en) * 2008-09-09 2012-10-24 住友建機株式会社 Electrical equipment arrangement structure in construction machinery
JP5297755B2 (en) * 2008-10-14 2013-09-25 キャタピラー エス エー アール エル Electrical panel of work machine
JP5392194B2 (en) * 2010-06-15 2014-01-22 コベルコ建機株式会社 Electrical equipment storage equipment for construction machinery
JP5073046B2 (en) * 2010-12-24 2012-11-14 株式会社小松製作所 Construction machinery
JP5073045B2 (en) * 2010-12-24 2012-11-14 株式会社小松製作所 Construction machinery
JP5799527B2 (en) * 2011-02-28 2015-10-28 コベルコ建機株式会社 work machine
JP6015092B2 (en) * 2012-04-24 2016-10-26 コベルコ建機株式会社 Electrical equipment mounting structure for construction machinery
JP2016030960A (en) * 2014-07-29 2016-03-07 ヤンマー株式会社 Construction vehicle
JP6098585B2 (en) * 2014-08-01 2017-03-22 コベルコ建機株式会社 Electrical equipment mounting structure for construction machinery
JP2018062733A (en) * 2015-03-02 2018-04-19 株式会社小松製作所 Working vehicle and ripper device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0579058A (en) * 1991-09-17 1993-03-30 Hitachi Constr Mach Co Ltd Driver's seat structure of construction machinery
JP2002167800A (en) * 2000-11-28 2002-06-11 Shin Caterpillar Mitsubishi Ltd Electrical equipment storage structure for construction machine
JP2005290928A (en) * 2004-04-05 2005-10-20 Hitachi Constr Mach Co Ltd Cap for construction machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0579058A (en) * 1991-09-17 1993-03-30 Hitachi Constr Mach Co Ltd Driver's seat structure of construction machinery
JP2002167800A (en) * 2000-11-28 2002-06-11 Shin Caterpillar Mitsubishi Ltd Electrical equipment storage structure for construction machine
JP2005290928A (en) * 2004-04-05 2005-10-20 Hitachi Constr Mach Co Ltd Cap for construction machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103958783A (en) * 2013-05-08 2014-07-30 株式会社小松制作所 Operation vehicle
CN103958783B (en) * 2013-05-08 2016-02-10 株式会社小松制作所 Working truck and the method that can travel

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