JP3985221B2 - Interior equipment mounting device for cab for construction machinery - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a construction machine including a cab or a canopy or other cab, and more particularly to an interior equipment mounting device for a cab for a construction machine for mounting an interior equipment in the cab.
[0002]
[Prior art]
For example, as described in Japanese Patent Application Laid-Open No. 2000-303499, a construction machine includes a cab box provided on the frame, and a cab is defined in the cab box. A driver's seat on which an operator is seated is arranged in the center of the operator's cab, and consoles for intensively operating the construction machine are arranged on the left and right sides of the driver's seat, respectively. These left and right consoles each have an operation lever extending from the front upper end side, and these operation levers are laid out so that the operation can be satisfactorily performed while the operator is seated on the driver's seat.
[0003]
Further, as described in the above publication, interior devices such as an air conditioner and a radio device are disposed in the cab, and among these, the air conditioner is disposed, for example, behind the driver's seat. One of the consoles described above contains an air conditioner controller, and the other contains a radio device. These air-conditioning controllers and radio devices are each fixed with the operation switches exposed on the upper surface of the console, so that the operator can easily operate these operation switches while sitting on the driver's seat. . In addition, an air conditioning controller may be provided in the rear console behind the driver's seat instead of the console.
[0004]
[Problems to be solved by the invention]
With recent improvements in construction machine performance, control systems tend to become more sophisticated, and therefore information that operators should handle during operation of construction machines is also diversifying. Along with this, there is an increasing need to concentrate various operation switches for the control system around the driver's seat, and the ratio of control operation switches to the console layout has increased. ing.
[0005]
Especially in construction machines such as ultra-small swivels, the space that can be secured as a cab is limited to the minimum necessary, so if priority is given to the arrangement of control operation switches, an air conditioning controller, a radio device, etc. are arranged. Therefore, there is a problem that sufficient space cannot be secured.
Accordingly, the present invention provides an interior device for a cab for a construction machine that can be installed in the cab in a preferred arrangement without obstructing the operator's field of view or hindering the operability of control switches. An object is to provide an attachment device.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, an interior device mounting device for a construction machine cab of the present invention (Claim 1) includes a roof partition member, front and rear partition members, and a partition member that divides the cab provided on the frame of the construction machine The left and right side partition members and the inner side of the roof partition member, one end side extends horizontally from the side partition member side, and the other end side extends vertically upward from the horizontally extending horizontal portion, and the end portion thereof is the roof partition member. The ceiling panel member that is joined to the member to form the ceiling of the operator's cab and forms a ceiling back space with the roof partition member, and is formed in a horizontal portion of the ceiling panel member , and communicates from the driver's cab to the ceiling back space. and holding the opening extending in the longitudinal direction of the cab, the interior equipment in order to accommodate side by side body portion of the plurality of interior equipment roof space through the opening from the cab side in the longitudinal direction of the cab Both and while exposing the operation switches of the interior equipment cab, and a fixing means for fixing the interior equipment in the ceiling panel member while keeping a constant angle relative to the seating position of the operator, this Prior to housing a plurality of interior devices in the space behind the ceiling, the fixing means is provided on the fixed bracket that combines the interior devices into one assembly, and the assembly is accommodated in the space behind the ceiling through the opening. And an angle member which can be fixed to the horizontal portion of the ceiling panel member via a bolt .
[0007]
According to the interior equipment mounting apparatus described above, since the main body portion of the interior equipment is accommodated in the space behind the ceiling between the ceiling panel member and the roof partition member, a plurality of interior equipment can be installed without reducing the space in the cab. Can be attached. Further, since control switches can be centrally arranged on the console or the like, the operability of the construction machine is not impaired.
In addition, when a plurality of interior devices are accommodated in the ceiling space, the interior devices are combined into one assembly by a fixing bracket prior to the accommodation, and the ceiling back member is opened through the opening of the ceiling panel member in the state of this assembly. If the angle member is fixed to the horizontal part of the ceiling panel member with bolts after that, the installation work for multiple interior equipment is completed. At this time, the operation switches of the interior equipment are exposed in the cab. In addition, a certain angle is maintained with respect to the seating position of the operator.
[0008]
In addition, a driver's seat on which an operator is seated is disposed in the operator's cab for the construction machine, and the above-described fixing means fixes the interior equipment so that the operation switches are exposed to the operator seated on the driver's seat. (Claim 2). In this case, the operator can easily visually recognize and operate the switches of the interior equipment.
Furthermore, the present invention can include a changing unit that can change the exposure direction of the operation switches by the fixing unit. Thereby, the operation switches can be adjusted in the exposure direction that is easier for the operator to visually recognize and operate.
[0009]
Further, if a cover member that is provided in the cab and covers the exposed portion of the interior equipment is further provided (claim 4), the head of the operator is effectively protected even if the interior equipment protrudes into the cab.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a cab 1 of a hydraulic excavator as an example of a cab for a construction machine. The cab 1 is disposed on a base frame 2, and the base frame 2 is supported by a traveling body (none of which is shown) via a turning device. The traveling body has various forms such as a crawler type and a wheel type.
[0011]
In addition, the excavator includes a front working mechanism 4 disposed on the right side of the cab 1. The front working mechanism 4 includes a boom 6, an arm and a bucket (not shown), and a hydraulic cylinder 8 that drives them.
The periphery of the cab 1 is covered with a partition member. Specifically, the cab 1 includes a cab roof panel 10, a cab panel 12, a cab front panel 14, and the like. Although not shown in FIG. 1, cab side outer panels are arranged on both sides of the cab 1. In the example of FIG. 1, a left rear window 16 is provided to open to the left cab side outer panel. A cab door 18 that can be opened and closed is provided on the left front side of the cab 1. The operator can enter and exit through the opening of the cab door 18.
[0012]
A floor panel 20 is laid on the base frame 2, and a driver's seat 22 is installed thereon. And the console 24 is installed in the both right and left sides of the driver's seat 22, and the operation lever 26 is provided in the front end, respectively. The operator can operate the hydraulic excavator by operating various operation switches on the console 24 as well as the operation lever 26 while sitting on the driver's seat 22. At this time, the operator's work field of view is secured through a front window, a rear window, a right window, a ceiling window, a door window 28, a left rear window 16 and the like (not shown).
[0013]
The cab door 18 and the left rear window 16 are partitioned by a center pillar 30, and the center pillar 30 extends between the cab roof panel 10 and the floor panel 20 in the vertical direction. Further, a ceiling panel member 32 is disposed inside the cab 1, and the ceiling panel member 32 extends in the horizontal direction below the cab roof panel 10 and partially constitutes the ceiling of the cab 1.
[0014]
Although not shown in FIG. 1, an air conditioner is disposed behind the driver's seat 22, and the air conditioning in the cab 1 is appropriately performed by the operation thereof. In the present embodiment, operation switches for controlling the hydraulic excavator are intensively arranged on the console 24, and therefore, interior devices such as the air conditioning controller 34 and the radio device 36 are arranged on the ceiling of the cab 1.
[0015]
FIG. 2 shows the mounting state of the air conditioning controller 34 and the radio device 36 as seen from the operator's seating position. As illustrated, the air conditioning controller 34 and the radio device 36 are attached in a state of projecting downward from the ceiling panel member 32, and the operation switches are directed into the cab 1 in this state. More specifically, the air conditioning controller 34 and the main body portion of the radio device 36 are embedded in a ceiling space between the ceiling panel member 32 and the cab roof panel 10 and are fixed obliquely with respect to the horizontal portion of the ceiling panel member 32. Has been.
[0016]
FIG. 3 specifically shows an attachment state of one radio device 36. The cab roof panel 10 described above constitutes the roof of the cab 1 and is connected to the cab side outer panel 38 on the left side thereof. The ceiling panel member 32 is joined to the cab side inner panel 40 directly above the left rear window 16 and the cab door 18 and extends horizontally, and the horizontal portion constitutes the ceiling of the cab 1. The ceiling panel member 32 is bent from the horizontal portion, extends vertically upward, and is joined to the cab roof panel 10. Therefore, the above-described ceiling back space 42 is formed between the ceiling panel member 32 and the cab roof panel 10.
[0017]
An opening 44 is formed in the horizontal portion of the ceiling panel member 32, and the air conditioning controller 34 and the radio device 36 are accommodated in the ceiling back space 42 through the opening 44. On the other hand, a portion protruding downward from the ceiling panel member 32 is covered with a resin cover 46. A fixed bracket 48 is disposed in the ceiling space 42, and the air conditioning controller 34 and the radio device 36 are fixed to the ceiling panel member 32 via the fixed bracket 48.
[0018]
FIG. 4 shows a state where the resin cover 46 is removed. The opening 44 has a substantially rectangular shape and extends in the front-rear direction of the cab 1, and its four corners are formed in an arc shape. The fixing bracket 48 is fixed to the horizontal portion of the ceiling panel member 32 via bolts 50 and 52, and the air conditioning controller 34 and the radio device 36 are suspended in the ceiling back space 42. The size of the opening 44 is preferably set such that the fixing bracket 48 can be easily inserted in a state where the air conditioning controller 34 and the radio device 36 are attached.
[0019]
5 and 6 specifically show the fixing bracket 48 with the air conditioning controller 34 and the radio device 36 removed. In particular, FIG. 6 shows the fixing bracket 48 as seen from inside the ceiling space 42.
The fixing bracket 48 includes a main frame 54 and has a length substantially the same as the longitudinal dimension of the opening 44. The main frame 54 is formed in a gate shape, extends above the opening 44, and has a pair of legs 56 and 57 at both ends. A portion between the legs 56 and 57 is formed in a cross-sectional groove shape, and thereby a sufficient bending strength is ensured in the main frame 54.
[0020]
Angle members 58 and 60 are disposed on both side edges of the opening 44 and fastened to the ceiling panel member 32 by the bolts 50 and 52 described above. The legs 56 and 57 of the main frame 54 are fixed to the ceiling panel member 32 via angle members 58 and 60 and the like. In FIG. 5, the bolt 52 is not shown.
Two suspension brackets 62 and 64 are attached to the lower surface of the main frame 54 side by side in the longitudinal direction, and one suspension bracket 62 is fastened to the main frame 54 using bolts 66.
[0021]
As shown in FIG. 5 , the suspension bracket 62 has a U-shape, and the radio device 36 is fixed inside the suspension bracket 62 from above (see FIG. 4) . The radio device 36 is supported by the suspension bracket 62 on both sides thereof, and is fastened by using bolts 68.
On the other hand, as shown in FIG. 4, the suspension bracket 64 has a pair of flanges 70 straddling the air conditioning controller 34 and facing the cab 1 on both sides thereof. The air conditioning controller 34 is engaged with a pair of flanges 70 at both ends, and is fastened using bolts (not shown).
[0022]
A center bracket 72 is attached to the center of the main frame 54, and the center bracket 72 has an attachment surface 74 that faces the cab 1. As shown in FIG. 3, the resin cover 46 engages with the mounting surface 74 and is fastened to the center bracket 72 using bolts 76.
When the air conditioning controller 34 and the radio device 36 are attached to the fixed bracket 48 as described above, all the interior devices are in an assembled state. Therefore, when installing the interior equipment in the cab 1, the interior equipment is first put in an assembled state, accommodated in the ceiling back space 42 through the opening 44 of the ceiling panel member 32, and the bolts 50 and 52 are tightened. It's okay. After that, when the resin cover 46 is set and the bolts 76 are tightened, the mounting operation of the interior equipment is completed.
[0023]
As apparent from FIG. 2, the air conditioning controller 34 and the radio device 36 attached by the fixing bracket 48 maintain a certain angle with respect to the operator whose operation switches are in the seating position. For this reason, the operator can easily visually recognize the operation switches from the seating position and can reliably perform the operation.
Further, since the air conditioning controller 34 and the main body of the radio device 36 are mostly housed in the ceiling space 42, it does not hinder the operator's view through the left rear window 16, and is overhead of the operator in the cab 1. There is no significant loss of space. In particular, when the air conditioning controller 34 and the radio device 36 are looked up from the sitting position of the operator, the mounting angle is given so that the front faces the operator, so that the operator's left oblique upper view is not obstructed. .
[0024]
Furthermore, if the protruding portion of the interior equipment is covered with the resin cover 46 as in the present embodiment, the operator's head is well protected.
In the above-described embodiment, the mounting angles of the air conditioning controller 34 and the radio device 36 are constant, but a structure capable of adjusting the mounting angles as described below may be employed.
[0025]
For example, as shown in FIG. 7, a hinge 78 is interposed between the legs 56 and 57 of the main frame 54 and the angle member 58, and the main frame 54 can be turned up and down around this. . The hinge 78 is desirably provided with a moderation mechanism so that the main frame 54 can be held at an arbitrary angle. When such addition is performed, the mounting angle of the interior equipment can be adjusted according to the physique and preference of the operator, and the visibility and operability can be greatly improved.
[0026]
For reference, when the cab for the construction machine is a canopy 82 as shown in FIG. 8, for example, a space behind the ceiling is secured between the roof panel 84 and the ceiling panel member 86, and the air conditioning controller 34 and the radio device 36 are installed on the ceiling. The panel member 86 is attached in an assembled state. In addition, when the air conditioner is not equipped in the canopy type, the attachment of the air conditioning controller 34 may be omitted.
The present invention can be implemented with various modifications and additions without being limited to the above-described embodiments.
[0027]
Moreover, although air-conditioning controller 34 and radio | wireless apparatus 36 are mentioned as interior equipment in one embodiment, these are only illustrations and this invention is applicable to the use which attaches other interior equipment.
In addition, the various members and structures mentioned in the embodiments are not limited to those shown in the drawings, and can be modified into arbitrary forms.
[0028]
【The invention's effect】
The interior equipment mounting device for a construction machine operator's cab of the present invention (Claim 1) can improve the degree of freedom of arrangement of a plurality of interior equipment in the cab, and can increase the utility in the cab together. it can. In addition, a plurality of interior devices can be arranged without obstructing the view from the cab, and an overhead space for the operator can be secured. Furthermore, a plurality of interior devices can be accommodated in the ceiling back space through the opening of the ceiling panel member in a state where they are gathered into one assembly by the fixing bracket, and thereafter, the angle member provided on the fixing bracket is horizontally disposed on the ceiling panel member. It can be fixed to the part with bolts, and the installation work for a plurality of interior equipment can be completed. After the installation work is completed, the operation switches of the interior equipment are exposed in the driver's cab and are kept at a fixed angle with respect to the operator's seating position. The operation can be performed reliably.
[0029]
In particular, if the operation switches are directed to an operator seated in the driver's seat (Claim 2), the visibility and operability are further enhanced, and the practicality is further improved.
Further, if the exposure direction of the operation switches can be changed (Claim 3), the optimal visibility and operability can be easily obtained by the operator adjusting the desired direction.
If the exposed portion of the interior device is covered with a cover (Claim 4), the operator's head can be protected and the interior device can be prevented from being damaged.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a cab of a hydraulic excavator as a cab for a construction machine.
FIG. 2 is a perspective view showing an attachment state of the interior device as seen from the operator's seating position.
3 is a cross-sectional view taken along line III-III in FIG.
4 is a perspective view showing a state when a resin cover is removed from the attached state of FIG. 2; FIG.
FIG. 5 is a perspective view of the fixing bracket as seen from inside the cab.
FIG. 6 is a perspective view of the fixing bracket as viewed from the ceiling space.
FIG. 7 is a view showing a mechanism for changing the mounting angle of the interior equipment.
FIG. 8 is a perspective view showing a canopy as a cab for a construction machine.
[Explanation of symbols]
1 cab 10 cab roof panel ( roof partition member)
22 Driver's seat 32 Ceiling panel member 34 Air conditioning controller (interior equipment)
36 Radio equipment (interior equipment)
42 Ceiling space 44 Opening 46 Resin cover 48 Fixing bracket (fixing means)
54 Main frame (fixed bracket)
58 Angle member (fixing means)
60 Angle member (fixing means)
78 Hinge (change means)
82 Canopy

Claims (4)

A roof partition member, a front and rear partition member, and left and right side partition members that partition the cab for the construction machine provided on the frame of the construction machine;
Provided inside the roof partition member, one end side extends horizontally from the side partition member side, the other end side extends vertically upward from a horizontally extending horizontal portion, and an end portion thereof is joined to the roof partition member, and A ceiling panel member that forms a ceiling space between the roof partition member and the ceiling of the cab,
An opening formed in the horizontal portion of the ceiling panel member , extending from the cab to the ceiling space and extending in the front-rear direction of the cab ;
The interior equipment is held in order to accommodate the main body portions of a plurality of interior equipment in the ceiling space through the opening from the cab side in the front-rear direction of the cab, and the interior from the opening into the cab. A fixing means for fixing the interior device to the ceiling panel member in a state where the operation switches of the device are exposed and in a state where a certain angle is maintained with respect to the sitting position of the operator ,
The fixing means includes
Prior to housing the plurality of interior devices in the ceiling space, a fixing bracket that combines these interior devices into one assembly;
An angle member that is provided on the fixing bracket and is fixable to the horizontal portion of the ceiling panel member via a bolt when the assembly is accommodated in the ceiling space through the opening;
An interior equipment mounting device for a cab for a construction machine , comprising: A driver seat on which an operator is seated is arranged in the driver's cab,
2. The interior equipment mounting device for a cab for a construction machine according to claim 1, wherein the securing means secures the interior equipment to expose the operation switches toward an operator seated in the driver's seat. . The interior equipment mounting device for a cab for a construction machine according to claim 1 or 2, further comprising changing means for changing an exposure direction of the operation switches by the fixing means. The interior equipment mounting device for a cab for a construction machine according to any one of claims 1 to 3, further comprising a cover member provided in the cab and covering an exposed portion of the interior equipment.

Images