JP2011016530A - Cab of construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cab of a construction machine, which improves operability and work efficiency in traveling and work by an operator.SOLUTION: In a wheel loader 10, a right side console box 24 arranged on the right side of an operator seat 22 in the cab 20, has an armrest 31, a switch panel 32 and a work machine lever 33. In the armrest 31, an upper surface part for placing a right arm of the operator seated on the operator seat 22 becomes flat. The switch panel 32 has a plurality of switches 32b for switching operation of various control systems such as a travel system, a work system and a maintenance system. The work machine lever 33 performs operation of an arm lift 12 and a bucket 13 installed in front of the wheel loader 10.

Description

  The present invention relates to a cab of a construction machine including a console box mounted in a cab of a construction machine such as a wheel loader.

Conventionally, a console box mounted in a cab of a construction machine such as a wheel loader, for example, an operation lever or armrest for operating a work machine such as a bucket, various switches corresponding to various control systems, and the like are attached. It has been.
For example, Patent Documents 1 and 2 disclose a console box in which an operation lever is attached in the vicinity of the front end portion and an armrest having a flat upper surface portion is attached behind the operation lever. According to these configurations, the operator can operate the operation lever with the arm placed on the armrest.

  Further, Patent Document 3 discloses a construction machine cab structure in which an operation lever is disposed in front of the console box and various switches are disposed on the side thereof. According to this configuration, since the operation lever and the various switches are arranged close to each other, the operator can easily reach the various switches arranged close to each other even when operating the operation lever. improves.

However, the apparatus arranged in the cab of the conventional construction machine has the following problems.
In other words, the devices disposed in the cab disclosed in Patent Documents 1 and 2 have a flat armrest and a working lever, but various switches such as a traveling system and a working system are disposed close to the hand. Because it is not, operability is bad. And when various switches are arranged close to hand, they are fixedly arranged on the right rear side to form a path for getting on and off the operator, so when performing work using switches, the operator However, since the work is performed while turning the switch back to the right, the workability may be deteriorated.

  Furthermore, in the construction machine cab disclosed in Patent Document 3, although an operation lever and switches are arranged on the console box, an armrest on which the operator should put his arm during operation is provided on the driver's seat side. Yes. For this reason, since the armrest is on the chair side, it is necessary for the operator to extend the arm each time the armrest is operated, and to operate the operation lever and switches.

  The subject of this invention is providing the cab of the construction machine which can improve the operativity and workability | operativity at the time of the driving | running | working and work by an operator.

  A cab for a construction machine according to a first invention includes a driver's seat, a passenger door, and a console box. The driver's seat is provided almost in the center and is seated by an operator. The entrance doors are provided on the left and right side surfaces, respectively. The console box is disposed on the side of the driver's seat, is slidable in the front-rear direction with respect to the driver's seat, and is slid rearward when using the adjacent entrance door. Further, the console box integrally includes an armrest, an operation lever, and an operation unit. The armrest has an upper surface serving as an arm rest for an operator seated on the driver's seat and is disposed closer to the rear in the front-rear direction of the construction machine. The operation lever is disposed adjacent to the front of the armrest in the front-rear direction, and is provided for operating a work machine attached to the construction machine. The operation part is located on the side of the armrest in the width direction of the construction machine and adjacent to the side opposite to the driver's seat across the armrest. Includes a plurality of switches for switching the operating state.

  The cab of the construction machine according to the second invention is the cab of the construction machine according to the first invention, and the plurality of switches included in the operation unit are arranged from the front side in order from the most frequently used one. .

  A cab for a construction machine according to a third invention is a cab for a construction machine according to the first or second invention, and the armrest has a flat upper surface part for placing an arm for an operator.

  A cab for a construction machine according to a fourth invention is a cab for a construction machine according to any one of the first to third inventions, and the plurality of switches included in the operation unit are configured such as a traveling system, a work from the front side. System and maintenance system are arranged in this order.

  According to the cab of the construction machine according to the present invention, it is possible to improve the operability and workability of the operator during traveling and working.

The external view which shows the structure of the wheel loader which concerns on one Embodiment of this invention. The top view which shows the structure inside the cab mounted in the wheel loader of FIG. The perspective view which shows the structure inside the cab mounted in the wheel loader of FIG. FIG. 4 is a side sectional view showing a configuration in a front console box arranged inside the cab of FIGS. 2 and 3. The top view which shows the sliding state of the right side console box arrange | positioned inside the cab of FIG. 2 and FIG. The perspective view which shows the sliding state of the right side console box arrange | positioned inside the cab of FIG. 2 and FIG. The front view which shows the right side console box arrange | positioned inside the cab of FIG. 2, an operator seat, and the rail which slides these. The perspective view which shows the armrest, the operation lever, and switch panel which are arrange | positioned at the upper surface of the right side console box arrange | positioned inside the cab of FIGS. The enlarged view which shows the structure of the switch panel contained in FIG. The top view which shows the structure of the front console box arrange | positioned inside the cab of FIG. The front view which shows the structure of the overhead console arrange | positioned inside the cab of FIG.

A cab of a construction machine according to an embodiment of the present invention will be described below with reference to FIGS.
[Configuration of the entire wheel loader 10]
As shown in FIG. 1, the wheel loader 10 according to the present embodiment includes a vehicle body 11, a lift arm 12 attached to the front portion of the vehicle body, a bucket 13 attached to the tip of the lift arm 12, and the vehicle body 11. The vehicle includes four tires 14 that rotate while supporting the vehicle body and a cab 20 that is mounted on the upper portion of the vehicle body 11.

The vehicle body 11 has an engine room that houses an engine (not shown), and a drive unit that drives the lift arm 12 and the bucket 13.
The lift arm 12 is an arm member for lifting the bucket 13 attached to the tip, and is driven by a lift cylinder provided therewith.
The bucket 13 is attached to the tip of the lift arm 12 and is dumped and tilted by a bucket cylinder.
The cab 20 forms a driver's cab configured by combining a plurality of steel pipes and steel plates, and is disposed slightly forward of the center portion of the vehicle body 11. The configuration of the cab 20 and the assembling method will be described in detail later.

[Structure of cab 20]
As shown in FIGS. 2 and 3, the cab 20 of the present embodiment includes an operator seat (driver's seat) 22, a steering wheel 23, an interior space formed by a plurality of column members 21 a to 21 f and a wall surface panel, A right console box (console box) 24, a front console box 26, and an overhead console 27 (see FIG. 4) are provided. The doors 25a and 25b for getting on and off are attached to the left and right sides when the operator (driver) sits on the operator seat 22 and faces the front.

The column members 21a to 21f are respectively disposed in the vicinity of the four corners of the cab 20 and in the vicinity of the left and right entrance / exit doors.
The operator seat 22 is a seat on which an operator (driver) who operates the wheel loader 10 sits, and is disposed near the center of the cab 20. Then, the operator seat 22 moves in the front-rear direction along a slide rail 22a (see FIG. 7) described later. A right console box 24 described later is disposed on the right side of the operator seat 22. On the other hand, no console box or the like is arranged on the left side of the operator seat 22. Therefore, the operator of the wheel loader 10 gets on and off through the entrance door 25b from the left side where a large space is normally provided.

The steering 23 is attached so as to protrude from a front console box 26 disposed in front of the operator seat 22 and changes the traveling direction of the wheel loader 10 by rotating left and right.
The right console box 24 is a box in which a switch panel 32 (see FIGS. 7 and 8) and the like are arranged on the upper surface, and is arranged in a space between the operator seat 22 and the right entrance door 25a. Further, the right console box 24 moves in the front-rear direction along a slide rail (slide mechanism) 24a (see FIG. 7) described later. The configuration of the right console box 24 will be described in detail later.

The front console box 26 is a box in front of the operator seat 22 and occupying a front portion of the cab 20. The front console box 26 houses therein an air conditioning unit 26a that performs air conditioning in order to keep the interior of the cab 20 in a comfortable environment. The configuration of the front console box 26 will be described in detail later.
As shown in FIGS. 2 and 4, the air conditioning unit 26 a is disposed slightly on the lower left side in the front console box 26. An air filter 26b attached to an intake port that supplies air to the air conditioning unit 26a is attached to the lower side of the air conditioning unit 26a. As shown in FIG. 4, the air filter 26b is accessible from the outside when the opening / closing door 26c is opened, and can be easily replaced.

  As shown in FIG. 4, the overhead console 27 is disposed on the right side of the operator seated on the operator seat 22. The overhead console 27 includes a radio operation unit 27a, an air conditioner operation unit 27b, which will be described later, and other maintenance switches 27c to 27e (see FIG. 11). The configuration of the overhead console 27 will be described in detail later.

  The entrance doors 25a and 25b are attached to the left and right sides of the cab 20, and are opened and closed on the outside of the cab 20 with hinges attached to the column members 21e and 21f side as pivots.

(Right console box 24)
As shown in FIG. 8, the right console box 24 has an armrest 31, a switch panel (operation unit) 32, and a work implement lever 33 arranged on the upper surface.
The armrest 31 is a seat having a flat upper surface for the operator to operate the work implement lever 33 and the like by placing the right arm during operation, and is disposed closer to the rear in the right console box 24.
The switch panel 32 includes a shift mode selection switch 32a for switching the operation mode, various switches 32b, a key switch 32c for starting the engine, and the like.

  As shown in FIG. 9, the switches 32b are switches on the side far from the operator seat 22, and in turn from the front side (the operator's hand side), the T / M cutoff ON / OFF switch 32ba, the T / M cut offset A switch 32bb, a remote positioner (boom) switch 32bc, a remote positioner (bucket) switch 32bd, an RPM set ON / decel switch 32be, and an RPM set accelerator / resume switch 32bf are arranged. As switches on the side close to the operator seat 22, an engine mode switching switch 32bg, a torque converter lockup switch 32bh, a FNRON / OFF switch 32bi, a semi-automatic excavation switch 32bj, and a fan reverse switch 32bk are arranged in this order from the front side.

  Of these, the T / M cutoff ON / OFF switch 32ba, the T / M cutoff offset switch 32bb, the engine mode switching switch 32bg, the torque converter lockup switch 32bh, and the FNRON / OFF switch bi, including the shift mode selection switch 32a. Are classified as traveling system switches that are usually operated during traveling. Next, the remote positioner (boom) switch 32bc, the remote positioner (bucket) switch 32bd, the RPM set ON / decel switch 32be, the RPM set accelerator / resume switch 32bf, and the semi-automatic excavation switch 32bj are normally stopped. It is classified as a work system switch operated by. The switches of the fan reversing switch 32bk are classified as maintenance switches that are operated in the running and work stop states.

  That is, in the right console box 24 mounted on the cab 20 of the present embodiment, as shown in FIG. 9, the traveling system including the engine mode changeover switch 32bg and the like for the switches classified into the various control systems described above. Switches, working system switches including remote positioner switches 32bc and 32bd for booms and buckets, and maintenance system switches including fan reverse switch 32bk are arranged in order from the most frequently used ones in order from the front side. .

  In this way, the travel system switches that have the highest frequency of use and may be operated during driving that requires attention are the frontmost, the frequency of use is medium, and there is a possibility that they are normally operated while the vehicle is stopped. Some work switches are located on the rear side, and maintenance switches that are less likely to be used while traveling and working are stopped are placed at the rear, so that the operator's hand placed on the armrest 31 Traveling system switches can be arranged at a position closest to the position. Therefore, even when it is necessary to operate the travel system switches while traveling on the wheel loader 10, the travel system switches are arranged at a position closest to the hand position. Can be operated with little movement. Therefore, the right console box 24 excellent in safety as well as operability can be obtained. Furthermore, the operability of the operator can be improved by arranging the switches most frequently used at the position closest to the armrest 31.

Further, by disposing work system switches that are likely to be operated while traveling is stopped, the work machines such as the lift arm 12 and the bucket 13 can be safely operated.
The maintenance switches at the farthest rear side as viewed from the position of the hand placed on the armrest 31 are operated in a state in which neither running nor working is performed, so the operator may slightly Even if you need to look back, you can operate safely.

  The work implement lever 33 operates the movement of the work implement attached to the front of the wheel loader 10, that is, the lift arm 12 and the bucket 13 by tilting these two levers back and forth. Further, the work implement lever 33 is operated by being gripped while the operator puts his arm on the armrest 31. As a result, the operator can operate with a comfortable posture.

(Front console box 26)
As shown in FIG. 10, the front console box 26 includes a front operation panel (front operation unit) 28 at a position facing the operator seat 22.
The front operation panel 28 includes a right front operation panel 28a, a left front operation panel 28b, a parking brake switch 28c, and an ECSS switch 28d.

Further, the right front operation panel 28a includes a side wiper switch 28aa, a rotation lamp 28ab, a work lamp (rear) switch 28ac, and a work lamp (front) switch 28ad in order from the right side as viewed from the operator, that is, from the armrest 31 side.
On the other hand, the left front operation panel 28b has a monitor switching (feedback) switch 28ba, a monitor switching (mode selection) switch 28bb, and a load meter (material / addition / subtraction) switch 28bc in order from the right side, that is, from the armrest 31 side. And a load meter (total weight / work fuel consumption) switch 28bd.

These various switches are also arranged in order from the highest frequency of use, that is, from the side closer to the armrest 31.
As a result, like the arrangement of the switches in the right console box 24, the most frequently used switches among the switches included in the front operation panel 28 are arranged at the closest position when viewed from the armrest 31, It is possible to improve the operability of the operator by reducing the moving distance of the hand during the operation as much as possible.

It should be noted that various switches attached to the front operation panel 28 of the front console box 26 are less frequently used than the various switches in the right console box 24 disposed closest to the armrest 31. Has been placed.
As a result, the switches that are frequently used are preferentially arranged on the right console box 24 side, so that the operability and workability of the operator can be further improved.

(Overhead console 27)
As shown in FIG. 11, the overhead console 27 includes a radio operation unit 27a, an air conditioner operation unit 27b, a rear hot wire switch 27c, an auto grease switch 27d, and a spare switch 27e.
Normally, maintenance-type switches are mainly concentrated on the overhead console 27 at the position where the movement distance of the hand is the longest when the operator operates. For this reason, when the operator operates the switches included in the overhead console 27, he / she operates while looking back to the right rear. However, only the maintenance-type switches which are operated while the vehicle is stopped and the work is stopped are arranged. Therefore, when operating the switches included in the overhead console 27, sufficient safety can be ensured.

  In addition, optional switches that are unlikely to be selected at the time of delivery are arranged in the overhead console 27. As a result, when there are many spare switches, most spare switches can be concentrated on the overhead console 27 in preference to the right console box 24 and the front console box 26. It can be prevented that switches that are not used are increased and the operability of the operator is lowered.

<Movement of each part when getting on and off the operator>
As shown in FIG. 2, the operator seat 22 and the right console box 24 are positioned by sliding in the front-rear direction to a relatively front position so that each operator can easily operate.
Further, when the operator gets on and off from the left entry / exit door 25b that normally gets on and off, the operator moves the operator seat 22 down to the position of the last part where the back of the operator seat 22 hits the rear wall surface. . Then, the operator gets in and out of the left entry / exit door 25b through the left empty space after sufficiently widening the space between the operator seat 22 and the steering wheel 23.

  On the other hand, when the operator gets on and off from the right entry / exit door 25a in an emergency or the like, as described above, the operator seat 22 is slid so as to be pulled down to the end, and the operator seat 22 and the right entry / exit As shown in FIGS. 5 and 6, the right console box 24 disposed between the door 25a for use is also slid rearward in the direction indicated by a two-dot chain line arrow in the drawing.

  Normally, the right console box 24 having the switch panel 32, work implement lever 33, and the like arranged on the upper surface thereof is positioned between the operator seat 22 and the right entry / exit door 25a at the time of use. It will be an obstacle when getting on and off the right entrance door 25a. However, as described above, the right console box 24 is moved to slide backward in an emergency such as when the passenger cannot get on and off the left door 25b. Thus, it is possible to secure a way for the operator from the operator seat 22 that can be fully slid to the rear to the right entry / exit door 25a, and to improve the entry / exit from the right side.

  Note that the slide of the operator seat 22 and the right console box 24 in the front-rear direction as described above is performed along slide rails 22a and 24a that are fixedly arranged with respect to the floor surface of the cab 20 as shown in FIG. Done. These slide rails 22 a and 24 a are attached along the sliding direction of the operator seat 22 and the right console box 24, that is, the front-rear direction of the cab 20.

[Features of the wheel loader 10]
(1)
In the wheel loader 10 of the present embodiment, as shown in FIG. 2 and the like, the right console box 24 disposed on the right side of the operator seat 22 in the cab 20 has an armrest 31 and a switch panel 32 as shown in FIG. A work machine lever 33 is provided. The armrest 31 has a flat upper surface portion on which the right arm of the operator seated on the operator seat 22 is placed. The switch panel 32 has a plurality of switches 32b for switching operations of various control systems such as a traveling system, a work system, and a maintenance system. The work machine lever 33 operates the lift arm 12 and the bucket 13 attached to the front of the wheel loader 10.

  As a result, the operator sits on the operator seat 22 while placing the right arm on the armrest 31 having a flat upper surface and operating the work machine lever 33, while interfering with the switches 32b arranged on the side of the hand. Since there is nothing, it is possible to easily access the switches 32b and operate the switches 32b as necessary. As a result, the right console box 24 that can improve the operability for the operator can be obtained.

(2)
In the wheel loader 10 of the present embodiment, as shown in FIG. 2 and the like, the right console box 24 disposed on the right side of the operator seat 22 in the cab 20 has an armrest 31 and a switch panel 32 as shown in FIG. A work machine lever 33 is provided. The armrest 31 is placed with the right arm of the operator seated on the operator seat 22. The work machine lever 33 operates the lift arm 12 and the bucket 13 attached to the front of the wheel loader 10. The switch panel 32 has a plurality of switches 32b for switching operations of various control systems such as a traveling system, a work system, and a maintenance system. The plurality of switches 32b are arranged in the switch panel 32 in order from the front side with the highest usage frequency.

  As a result, switches 32b that are frequently used can be arranged in order from the position closest to the operator's hand, which is seated on the operator seat 22 and placed on the armrest 31, so that the operator can use frequently used switches 32b. On the other hand, it can be operated without moving the hand so much. As a result, the right console box 24 that can improve the operability for the operator can be obtained.

(3)
In the wheel loader 10 of the present embodiment, as shown in FIG. 2 and the like, the right console box 24 having the armrest 31, the switch panel 32, and the work implement lever 33 on the upper surface slides in the front-rear direction along the slide rail 24a. Moving.
Thus, as described above, even when the right console box 24 with improved operator operability is disposed between the operator seat 22 and the right entrance door 25a, the right console box 24 is slid in the front-rear direction. By making it move, the boarding / alighting property from the right boarding door 25a can be ensured.

(4)
In the wheel loader 10 of the present embodiment, the various switches 32b included in the switch panel 32 are provided in the right console box 24 including the armrest 31 having a flat upper surface, the switch panel 32, and the work implement lever 33. They are arranged in order of frequency of use.

  Thereby, in addition to the ease of access to the switches 32b obtained by the armrest 31 being flat, the switches 32b are obtained by being arranged on the side closer to the operator's hand in order of frequency of use. An improvement in operability can be obtained at the same time.

(5)
In the wheel loader 10 of the present embodiment, the various switches 32b included in the switch panel 32 are classified into three control systems, that is, a traveling system, a working system, and a maintenance system, in this order from the side closer to the operator (front side). It is arranged.
As a result, the travel system switches that are operated during travel requiring the most attention are arranged on the side closest to the operator's hand, and the work system that is operated during the operation of operating the work equipment (lift arm 12, bucket 13). By placing the switches in the rear of the switch and the maintenance switches that are operated when the traveling work is stopped on the side farthest from the operator's hand, sufficient safety is ensured in any situation. Can do.

(6)
In the wheel loader 10 of this embodiment, in addition to the right console box 24 described above, a front console box 26 disposed in front of the operator seat 22 is further provided inside the cab 20 as shown in FIG. In the front console box 26, switches that are frequently used are arranged in order from the side closer to the operator.
As a result, with respect to the plurality of switches included in the front console box 26, those that are frequently used are arranged from the side closer to the operator's hand, so that the switches included in the front console box 26 can be operated by the operator. Can be improved.

(7)
In the wheel loader 10 of this embodiment, in addition to the right console box 24 and the front console box 26 described above, as shown in FIGS. 4 and 11, an overhead console 27 is provided in the upper part of the operator's right head. It has more. The overhead console 27 arranges switches that are frequently used in order from the side closer to the operator.

Thereby, even when the switches included in the overhead console 27 arranged near the upper right of the operator are operated, the operability of the operator can be improved.
Further, the switches arranged in the right console box 24, the front console box 26, and the overhead console 27, in order from the most frequently used among the console boxes, the right console box 24, the front console box 26, and the overhead console. 27, maintenance switches can be preferentially arranged on the overhead console 27 having the longest distance from the operator. Therefore, the overhead console 27 that needs to look back to the right at the time of operation is provided with only maintenance-type switches that are operated when the traveling work is stopped, and the cab 20 has sufficiently secured safety when operating the switches. Layout can be configured.

[Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the above-described embodiment, an example has been described in which the plurality of switches 32b included in the switch panel 32 of the right console box 24 are classified for each control system and are arranged from the front side in order of frequency of use. However, the present invention is not limited to this.
For example, in the case of the right console box 24 in which the armrest 31 having a flat upper surface, the switch panel 32, and the work implement lever 33 are integrated, the operator can place the arm rest 31 on the armrest 31 while the armrest 31 has an uneven surface. Compared with the configuration, since the hand can be smoothly moved to the switch panel 32 and the work machine lever 33, the operability can be improved, so the arrangement of the switches 32b is not necessarily required.

  However, by adding a switch panel 32 including switches 32b arranged in the order of frequently used control systems to the configuration, the operator can easily operate the frequently used switches 32b with the arm resting on the armrest 31. From the viewpoint of further improving the operability, it is more preferable to consider the arrangement of the switches 32b as in the above embodiment.

(B)
In the above embodiment, the armrest 31 of the right console box 24 has been described with an example in which the upper surface portion for placing the arm in a state where the operator is seated is flat. However, the present invention is not limited to this.
For example, in the case of the right console box 24 in which the armrest 31, the switch panel 32 including a plurality of switches arranged according to the use frequency, and the work machine lever 33 are integrated, the operator puts his arm on the armrest 31, Since the frequently used switches 32b can be easily operated, the upper surface portion of the armrest 31 does not necessarily have to be flat, and may be an armrest having irregularities formed on the upper surface portion.

  However, by making the upper surface portion of the armrest 31 flat, the operator's hand can be accessed more smoothly with respect to the frequently used switches 32b, so that the operability can be further improved from the above viewpoint. It is more preferable to consider the shape of the upper surface of the armrest 31 as in the embodiment.

(C)
In the above embodiment, the travel system, work system, and maintenance system switches have been described as examples of the control system of the switches 32b included in the switch panel 32 of the right console box 24. However, the present invention is not limited to this.
For example, a right console box in which switches including control systems other than these are arranged for each use frequency may be used.

(D)
In the above-described embodiment, the right console box 24 to which the configuration of the present invention is applied has been described by taking an example in which the right console box 24 slides in the front-rear direction, like the operator seat 22. However, the present invention is not limited to this.
For example, it may be a right console box fixedly arranged on the floor surface of the cab 20. Even in this case, it is possible to obtain the same effect as described above that the operability of the operator can be improved by flattening the upper surface of the armrest and arranging the switches according to the frequency of use of the switches.

  However, like the above embodiment, the right console box 24 can be slid in the front-rear direction as in the above embodiment, so that the operator can ensure boarding / alighting when getting on and off the right door 25a. More preferably.

(E)
In the above embodiment, the right console box 24 arranged on the right side of the operator seat 22 has been described as an example of the console box according to the present invention. However, the present invention is not limited to this.
For example, the present invention can be applied to the left console box disposed on the left side of the operator seat 22. Furthermore, the present invention can also be applied to both or one of the console boxes provided on the left and right sides of the operator seat.

(F)
In the above embodiment, the switches included in the front console box 26 and the overhead console 27 have been described by taking, for example, a switch for operating a rotating light and a work light (rear and front), a radio operation unit, an air conditioner operation unit, and the like. . However, the present invention is not limited to this.
For example, the arrangement of these switches is not limited to the configuration described in the above embodiment, and the switches may be exchanged between the console boxes.

  However, considering that the right console box is the easiest to operate for the operator, including the right console box, the next console box is the front console box, and the overhead console is the most difficult to operate, as in the above embodiment. It is more preferable to arrange the right console box, the front console box, and the overhead console in this order from the frequently used switches.

(G)
In the above embodiment, the switches included in each console box have been described with an example in which the switches are classified for each control system and rearranged in the order of the control system having the highest use frequency. However, the present invention is not limited to this.
For example, instead of grouping in the order of the control system, the switches may be arranged from the position that is easy to operate for the operator in order from the frequently used switches.
However, when the switches are classified according to the work content, such as traveling system, working system, maintenance system, etc., they are easily classified as switches that are operated while the construction machine is traveling and switches that are operated when the traveling is stopped. Therefore, it is more preferable to arrange the switches as in the above embodiment from the viewpoint of ensuring safety during traveling.

(H)
In the above embodiment, an example in which the present invention is applied to the layout in the cab and the console box mounted on the wheel loader has been described. However, the present invention is not limited to this.
For example, the present invention is naturally applicable not only to a wheel loader but also to an in-cab layout and a console box mounted on other construction machines such as a bulldozer and a hydraulic excavator.

  The cab of the construction machine according to the present invention has an effect that the operability and workability of the operator can be improved as compared with the conventional one, and thus can be widely applied to cabs and console boxes mounted on various construction machines. is there.

10 Wheel loader (construction machine)
11 Car body 12 Lift arm 13 Bucket 14 Tire 20 Cab (cab for construction machinery)
21a-21f Column member 22 Operator seat (driver's seat)
23 Steering 24 Right console box (console box)
24a Slide rail (slide mechanism)
25a Entry / exit door 25b Entry / exit door 26 Front console box (box)
26a Air-conditioning unit 26b Air filter 27 Overhead console (upper operation section)
27a Radio operation unit 27b Air conditioner operation unit 27c Rear heat wire switch 27d Auto grease switch (maintenance system)
27e Spare switch 27e
28 Front operation panel (front operation unit)
28a Front right operation panel (front operation unit)
28aa Side wiper switch (travel system)
28ab rotating light (travel system)
28ac Work light (rear) switch (travel system)
28ad Work light (front) switch (travel system)
28b Front left operation panel (front operation unit)
28ba Monitor switching (feedback) switch (working system)
28bb Monitor change (mode selection) switch (work system)
28bc Load meter (material / addition / subtraction) switch (travel system)
28bd Load meter (total weight / work fuel consumption) switch (travel system)
28c Parking brake switch 28d ECSS switch 31 Armrest 32 Switch panel (operation unit)
32a Shift mode selection switch 32b Switches 32ba T / M cut-off ON / OFF switch (travel system)
32bb T / M cut offset switch (travel system)
32bc Remote positioner (boom) switch (working system)
32bd Remote positioner (bucket) switch (working system)
32be RPM set ON / Decel switch (working system)
32bf RPM set accelerator / resume switch (working system)
32bg engine mode switch (travel system)
32bh Torcon lock-up switch (travel system)
32bi FNRON / OFF switch (travel system)
32bj Semi-automatic drilling switch (working system)
32bk fan reverse switch (maintenance system)
32c Key switch 33 Working machine lever

Japanese Patent Laying-Open No. 2005-146738 (released on June 9, 2005) Japanese Patent Laid-Open No. 10-252100 (published on September 22, 1998) JP 2000-303499 A (released on October 31, 2000)

Claims (4)

A cab for construction equipment,
The driver's seat where the operator is seated
Entrance doors provided on the left and right sides respectively;
A console box that is arranged on the side of the driver's seat, is slidable in the front-rear direction with respect to the driver's seat, and is slid backward when using the adjacent door for getting on and off;
With
The console box is
An armrest having an upper surface that serves as an armrest for an operator seated in the driver's seat, and disposed closer to the rear in the front-rear direction of the construction machine;
An operation lever that is disposed adjacent to the front of the armrest in the front-rear direction and that operates a work machine attached to the construction machine,
It is located on the side of the armrest in the width direction of the construction machine, adjacent to the side opposite to the driver's seat across the armrest, and each control system included in the construction machine on the upper surface thereof An operation unit including a plurality of switches for switching the operation state of
Has an integral,
Construction machinery cab. The plurality of switches included in the operation unit are arranged from the front side in order from the highest usage frequency.
The construction machine cab according to claim 1. The armrest has a flat upper surface portion that serves as an arm rest for the operator.
The cab of the construction machine according to claim 1 or 2. The plurality of switches included in the operation unit are arranged in order of a traveling system, a working system, and a maintenance system from the front side.
The cab for a construction machine according to any one of claims 1 to 3.

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