JPH11280117A - Operation room of construction machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To independently adjust an auxiliary control panel provided for controlling a main control panel and an attachment installed to the inside of an operation room of a construction machinery and a relative position with an operating seat and integrally move the main control panel, an auxiliary control panel and an operating seat after the adjustment of the relative position. SOLUTION: A main control panel 3 and an auxiliary control panel 4 are fixed to a movable section 7. An operating seat 10 is held in a movable manner in the forward and backward direction to the movable section 7. A relative position between the main control panel 3 and operating seat is adjusted by moving the operating seat 10 in front and behind to the movable section 7. The relative position between the operating seat 10 and auxiliary control panel 4 is adjusted by expansion of a turnbuckle unit 60 and an upper bracket 53. As mentioned above, the main control panel 3, auxiliary control panel 4 and operating seat 10 relatively positioned independently to each other can be integrally moved in the forward and backword direction of the operating seat 10 by the slide rail 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operator's cab of a construction machine such as a hydraulic shovel, and more particularly to a case where a sub-operation panel is installed around a driver's seat movable in the front-rear direction of the operator's cab. Related to a cab of a construction machine.

[0002]

2. Description of the Related Art Conventionally, as a cab in a construction machine such as a hydraulic shovel, for example, as shown in FIG.
A driver's seat device 2 attached to the floor 1a inside the vehicle, a main operation panel 3 arranged on the side of the driver's seat device 2, and a sub operation panel 4 arranged in front of the driver's seat device 2 What is provided is known.

Here, the driver's seat device 2 includes a fixed portion 6 fixed to the floor 1a and a movable portion 7 disposed above the fixed portion 6.
The movable part 7 is provided so as to be movable along a slide rail 9 arranged at the upper end of the fixed part 6, so that the driver's seat 10 attached to the upper end of the movable part 7 can be moved in the front-rear direction. By movably supporting the driver's seat 10 and movably mounting the driver's seat 10 in the front-rear direction along a slide rail 11 fixedly provided on the upper surface of the movable part 7, the driver's seat 10 is mounted on the main operation panel 3 attached to the movable part Driver's seat 1
The relative position of 0 can be adjusted. The driver's seat 10 is supported so as to be able to move back and forth together with the movable part 7 because, for example, when looking into the lower front side of the cabin 1, the driver's seat 10 is moved forward. This is to place 10 in an appropriate position.

[0004] The main operation panel 3 is provided with a swing of an upper swing body,
Basic operations necessary for the construction machine, such as operations of a boom, a bucket, and an arm (not shown), are controlled by an arbitrary number of levers 12 mounted on the upper part thereof. By being attached to the movable portion 7, the movable portion 7 can be moved.

[0005] On the other hand, the sub operation panel 4 is different from the main operation panel 3 in order to operate additional functions added to the construction machine, for example, when performing trajectory control in a hydraulic shovel or driving various attachments. It is provided separately and independently, and is fixed to the upper end of a columnar support member 14 fixed to the floor surface 1a of the cabin 1 with bolts 13. As a method of attaching the support member 14 to the operator's cab, the lower end of the support member 14 may be welded to the floor surface 1a instead of the bolt 13. Further, in the drawing, reference numeral 15 denotes the fixed part 6.
The lower suspension 16 is incorporated into the movable part 7 to reduce the transmission of vibrations and shocks from the floor surface 1a to the movable part 7. The lower suspension 16 is incorporated into the movable part 7 to reduce the transmission of vibrations and shocks from the movable part 7 to the driver's seat 10. The upper suspension.

In the above-mentioned conventional cab, the sub-operation panel 4 is fixed to the floor 1a by the support member 14, so that the movable portion 7 of the driver's seat device 2 is moved forward of the driver's seat 10. In this case, the sub-operation panel 4 and the support member 14 come close to the driver's seat 10 and the movable part 7, and in some cases, they may interfere with each other. In order to avoid such interference, the moving range of the movable part 7 and the driver's seat 10 must be limited. As a result, there is a disadvantage that the amount of movement of the movable part 7 and the driver's seat 10 is insufficient. In addition, since the relative position between the operator and the sub operation panel 4 changes due to the movement of the driver's seat 10, the operational feeling of the sub operation panel 4 changes according to the seat position, which is a factor that hinders smooth operation.

[0007] In addition, as described above, the sub operation panel 4 is different from the main operation panel 3 for performing operations indispensable to the construction machine, and is for operating additional functions added as necessary. Therefore, it may not always be installed in the driver's cab, but may be added after the installation of the driver's seat device 2 or the like, and in some cases, it may even be required after delivery to the user. In such a case, it is necessary to open a mounting hole for inserting the bolt 13 into the floor surface 1a of the operator cab in a completed state, or to weld the support member 14, and the number of man-hours and working time required for additional construction Will be bulky. Therefore, it is conceivable to reduce the number of additional mounting steps of the sub-operation panel 4 by previously opening a mounting hole for the bolt 13 on the floor surface 1a. There is a new inconvenience that the number of processing steps is wasted.

Therefore, the applicant has proposed a driver's cab as disclosed in Japanese Patent Application Laid-Open No. 5-79059. This cab is
Instead of attaching the support member to the floor surface 1a, a grip portion for gripping an existing component of the movable portion 7 of the driver's seat device 2 is provided on the support member, and the support member is moved to the movable portion of the driver's seat device by the grip portion. It is attached detachably. In addition, the driver's seat 10 is configured to be movable relative to the movable part 7 in the same manner as described above. According to this, the support member 1
4 does not hinder the movement of the driver's seat 10 in the front-rear direction, and the operation feeling of the sub operation panel 4 does not change with the forward / backward movement of the driver's seat. In addition, the support member is detachably attached to the movable portion 7 of the driver's seat device 2 by the grip portion,
The workability when the sub operation panel 4 is additionally mounted is improved. Further, by sliding the driver's seat 10 with respect to the movable part 7, the relative positional relationship between the main operation panel 3 and the driver's seat 10 or the relative positional relationship between the sub operation panel 4 and the driver's seat 10 can be adjusted. . Therefore, the positional relationship between the main operation panel 3 and the driver's seat 10 or the sub operation panel 4 and the driver's seat 1
After adjusting the positional relationship with the main unit 0, the position of the main operation panel 3 or the sub operation panel 4 is always maintained in accordance with the physique of the operator even if the movable unit 7 is moved back and forth with respect to the fixed unit 6. It is possible to do.

[0009]

However, in the above-described system, the relative positional relationship between the main operation panel 3 and the sub operation panel 4 cannot be adjusted. Therefore, for example, when the position of the driver's seat 10 is adjusted so that the relative positional relationship between the main operation panel 3 and the driver's seat 10 is optimized, the position of the sub operation panel 4 is not optimal depending on the physique of the operator. When operating the construction machine using the operation panel 4, workability may be reduced.

The present invention has been made in view of the above background, and has a variable relative positional relationship between a main operation panel and a sub operation panel. It is an object of the present invention to provide a cab of a construction machine that can optimally set a relative position between a panel and a driver's seat and a sub-operation panel.

[0011]

Means for Solving the Problems (1) When explained with reference to FIG. 1 showing an embodiment, the invention according to claim 1 is a main operation for operating a driver's seat 10 and a construction machine. The present invention is applied to a cab 1 of a construction machine having a panel 3 and a sub-operation panel 4 installed corresponding to an additional function added to the construction machine. Driver's seat holding means 9 for holding driver's seat 10 integrally with main operation panel 3 and sub operation panel 4 so as to be movable in the front-back direction of driver's seat 10; main operation panel 3 and sub operation panel 4
For adjusting the relative positional relationship with the driver's seat 10
Relative position adjusting means 11; second relative position adjusting means 5 for adjusting the relative position between main operation panel 3 and sub operation panel 4
By having 0, the above-mentioned object is achieved. (2) The second relative position adjusting means 50 is fixed to the first relative position adjusting means 11 according to an embodiment of the present invention. A grip part 58 for gripping the existing component 31 to be provided is fixed to one end thereof, and the first relative position adjusting means 1 is held by the grip part 58.
A first member 51 detachably attached to the first member 51; a second member 52 whose one end is rotatably supported at the other end of the first member 51; Sub-operation panel holding means 53 for holding the second member 52 movably in the axial direction at the end side; and an angle adjusting mechanism 60 for adjusting an angle formed between the first member 51 and the second member 52. .

In the meantime, in the section for solving the above-mentioned problem which explains the constitution of the present invention, the drawings of the embodiments are used to make the present invention easy to understand. However, the present invention is not limited to this.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same components as those in the above-described conventional example are denoted by the same reference numerals, and the description will be simplified.

As shown in FIG. 1, an operator's cab (hereinafter referred to as an operator's cab) of a construction machine according to an embodiment of the present invention has a cabin 1 forming an outer shell of the operator's cab and a floor 1a attached to the cabin. A driver's seat device 2, a main operation panel 3 disposed on the side of the driver's seat device 2, a sub operation panel 4 disposed in front of the driver's seat device 2, and a support for supporting the sub operation panel 4. And a device 50. The driver's seat device 2 has a fixed part 6 and a movable part 7
The main operation panel 3 is attached to the movable part 7 so as to be movable together with the movable part 7, and the driver's seat device 2 is further provided with two suspensions 15 and 16.

A slide rail 11 for supporting the driver's seat 10 movably in the front-rear direction with respect to the movable part 7 is fixed to the movable part 7. Then, the movable member of the slide rail 11 is fixed to the beam 10a of the driver's seat 10 as shown in FIG. Thereby, the movable portion 7 can move with respect to the fixed portion 6 and the driver's seat 10 can move with respect to the movable portion 7 in the front-rear direction.

One end of a support device 50 for supporting the sub operation panel 4 is attached to the movable portion 7 of the driver's seat device 2. Less than,
Details of the support device 50 will be described with reference to FIGS.

FIGS. 2 and 3 show details of the support device 50. FIG. The support device 50 is formed by bending a tubular material having a circular cross section, and is rotatably connected to a lower arm 51 and an upper arm 52 by a shaft 49, as will be described later in detail, an upper bracket 53, and a lower arm 51 and an upper arm 52. And a turnbuckle unit 60 for adjusting the relative angle with the control unit.

At the upper end of the upper arm 52, an upper bracket 53 for mounting the sub operation panel 4 is provided with a bolt 53A.
And a hinge 52b is welded to the lower end. The upper bracket 53 is provided with a plurality of through holes 53a.
When mounting the upper bracket 53, the bolt 53A is passed through by aligning any one of the plurality of through holes 53a with the position of a hole (not shown) formed in the upper arm 52 when the upper bracket 52 is mounted. Can be moved in the direction of arrow A in FIG. Thereby, the vertical positioning of the sub operation panel 4 can be performed.

The turnbuckle unit 60 includes a screw 63 having a right-hand screw 63a and a left-hand screw 63b formed at both ends thereof, and a joint 6 screwed to both sides of the screw 63.
1 and 62 and 2 used to stop the screw 63 from rotating
It is composed of a pair of double nuts 64 and 65.

An angle adjusting mechanism for adjusting the relative angle between the upper arm 52 and the lower arm 51 will be described. A hinge 52b welded to the upper arm 52 and a hinge 51b welded to the lower arm 51 are rotatably connected by a shaft 49. A lug plate 52a is welded to the upper arm 52, and a lug plate 51a is welded to the lower arm 51. Screw holes 61a of the turnbuckle 60 are inserted into holes formed in the lug plates 51a and 52a, respectively.
62 a is passed therethrough and fastened by a nut 66. With such a configuration, the screw 63 of the turnbuckle unit 60
By turning clockwise or counterclockwise, the relative angle between the upper arm 52 and the lower arm 51 can be adjusted.

Lower bracket 55 and intermediate bracket 5 welded to the lower end and intermediate portion of lower arm 51
4 will be described. The lower bracket 55 is formed by combining two flat plates at right angles to each other, and one flat plate is abutted on the lower end of the lower arm 51 and welded. Then, as shown in FIG.
A pipe clamp 56 is detachably attached to 5 by a bolt 57, and the lower bracket 55, the pipe clamp 56 and the bolt 57 constitute a grip portion 58 of the support device 50. The pipe clamp 5
Reference numeral 6 denotes, for example, a configuration similar to that used for fixing a hydraulic pipe or the like, and a substantially half-moon-shaped notch portion 56a to be fitted to the support cylinder 33 to be fixed is formed at one end.

On the other hand, as shown in FIGS. 4 and 5, the intermediate bracket 54 is formed by bending a single flat plate into a substantially L-shape when viewed from the side, and has a through hole 5 formed at the upper end thereof.
The lower arm 51 is fixed to a predetermined position of the lower arm 51 by being inserted into the lower arm 51 and being welded around. A female screw 54b (FIG. 3) formed on the lower side of the intermediate bracket 54 is provided with a pressing screw (pressing means) 28.
Is screwed in with its tip protruding above the intermediate bracket 54, and is fixed in place by the nut 29.

The supporting device 50 configured as described above is
As shown in FIG. 1, FIG. 4 and FIG. 6, the end provided with the grip portion 58 is inserted into the movable portion 7 from the front of the driver's seat device 2 with the end provided to the rear of the driver's seat 10. The grip portion 58 is pushed until it protrudes backward from the movable portion 7. Then, the lower bracket 55 of the grip portion 58 protruding rearward of the movable portion 7 and the cutout portion 56a of the pipe clamp 56,
The support cylinder 33 of the main operation panel bracket 31 fixed to the rear part of the movable section 7 is sandwiched. Thereafter, the bolt 57 is tightened to fix the grip section 58 to the main operation panel bracket 31. It is detachably connected to the movable part 7.

The main operation panel bracket 31 is originally provided for attaching the main operation panel 3 to the movable portion 7, and a base plate welded to the movable portion 7 as shown in detail in FIGS. A support shaft 3a (FIG. 6), which is rotatably inserted in the circumferential direction inside the support tube 33, is connected to the rear lower end of the main operation panel 3. This allows the main operation panel 3 to be rotatably supported around the axis of the support cylinder 33.

As shown in FIG. 4 and FIG.
In a state where the grip portion 58 of the main operation panel grips the main operation panel bracket 31, the pressing screw 28 of the intermediate bracket 54 is connected to the main operation panel stay 34 whose tip is connected to the front portion of the movable section 7.
Is disposed at a position facing the lower surface of the. The main operation panel stay 34 contacts the lower surface of the front part of the main operation panel 3 to support the main operation panel 3. Then, the pressing screw 2 of the supporting device 50
8 is screwed upward so that the tip thereof comes into contact with the lower surface of the main control panel stay 34 after the grip of the main control panel bracket 31 by the grip portion 58 is completed. The nut 29 is further screwed in the same direction, and is prevented from rotating by the nut 29 in a state where an appropriate pressing force is applied to the main operation panel stay 34.

After the support device 50 is attached to the movable portion 7 in the above procedure, as shown in FIGS. 1 and 6, the auxiliary operation panel is inserted through a fixing hole 53b formed in the upper bracket 53 of the support device 50. 4 is screwed, whereby the sub operation panel 4 is attached to the movable portion 7 via the support device 50.

A method of relative positioning between the driver's seat 10 and the main operation panel 3 and between the driver's seat 10 and the sub operation panel 4 in the operator's cab of the construction machine configured as described above will be described. First, the slide rail 11 is moved to move the driver's seat 10 back and forth relative to the movable part 7. Thereby, the driver's seat 10
The relative position between the main operation panel 3 and the driver's seat 10 can be adjusted according to the physique of the operator who sits on the vehicle. Subsequently, the screw 63 of the turnbuckle unit 60 is turned clockwise or counterclockwise to change the relative angle between the lower arm 51 and the upper arm 52, thereby adjusting the position and inclination of the sub operation panel 4 in the front-rear direction. Further, the height position of the sub operation panel 4 is adjusted by moving the mounting position of the upper bracket 53 with respect to the upper arm 52 up and down. By the above operation, the relative position of the sub operation panel 4 with respect to the main operation panel 3, that is, the relative position of the sub operation panel 4 with respect to the driver's seat 10 can be adjusted. In this way, the position of the main operation panel 3 and the position of the sub operation panel 4 can be adjusted with respect to the driver's seat 10, so that the operational feeling of the main operation panel 3 and the sub operation panel 4 can be improved.

In the cab configured as described above, the sub operation panel 4 is attached to the movable section 7 via the support device 50, and the main operation panel 3 is directly attached to the movable section 7. Therefore, when the position of the driver's seat 10 is moved back and forth by moving the relative position of the movable part 7 with respect to the fixed part 6 by sliding the slide rail 9, the main operation panel 3 and the sub operation panel 4 are moved to the driver's seat 1.
Moves together with 0. Thus, even when the driver's seat is slid back and forth with the operation of the construction machine, the operator can obtain a certain operation feeling, and can reduce the fatigue felt by the operator when working for a long time. in addition,
Since the relative distance between the operator and the sub-operation panel 4 does not change, a constant operation feeling is always obtained, and there is no possibility of an erroneous operation, and a smooth operation can be performed at any seat position.

In the above description of the embodiment, the main operation panel 3 is fixed to the movable portion 7, while the driver's seat 10 is movable relative to the movable portion 7 by the slide rail 11. However, the main operation panel 3 may be provided so as to be relatively movable with respect to the movable unit 7, and the driver's seat 10 may be fixed to the movable unit 7. Further, the supporting device 50
Is that the upper arm 52 is
9 and rotatably connected to each other, and the turnbuckle unit 60
Although the configuration is such that the relative angle between the lower arm 51 and the upper arm 52 is adjusted by the above, a ball joint with a clamp may be provided at the joint between the lower arm 51 and the upper arm 52 instead. . In addition, the support device 50 has been described as an example in which the relative angle between the two arms, that is, the lower arm 51 and the upper arm 52, and the position of the upper bracket 53 with respect to the upper arm 52 can be adjusted. , The hinge 52b, the shaft 49, and the hinge 51b so that the relative angle between the first and second arms and the relative angle between the second and third arms can be adjusted.
And two angle adjusting mechanisms (FIG. 2) configured by the turnbuckle unit 60 may be provided.

In the correspondence between the above-described embodiment and the claims, the slide rail 9 is a driver's seat holding means, the slide rail 11 is a first relative position adjusting means, and the support device 50 is a second relative position. The lower arm 51 constitutes the first member, the upper arm 52 constitutes the second member, the upper bracket 53 constitutes the auxiliary operation panel holding means, and the turnbuckle unit 60 constitutes the angle adjusting mechanism.

[0031]

As described above, (1) According to the first aspect of the invention, the relative positions of the main operation panel and the driver's seat, and the sub operation panel and the driver's seat are independently adjusted. After adjustment, the driver's seat, the main operation panel and the sub operation panel can be moved together without changing their relative positions, so that the operability of construction machinery is improved, and operator fatigue and erroneous operation are improved. Can be reduced. (2) According to the second aspect of the invention, the relative angle between the first member and the second member and the relative position of the sub-operation panel with respect to the second member can be adjusted. The relative position between the main operation panel and the sub operation panel can be adjusted by changing the inclination and the height. Thereby, the operation position of the sub operation panel can be adjusted flexibly in accordance with the operator's body type.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing a configuration of a cab according to an embodiment of the present invention.

2 (a) is a side view, FIG. 2 (b) is a side view of FIG. 1 (a), and FIG. Arrow C in the side view of a)
FIG.

FIG. 3 is a view showing a state where the main body of the support device of FIG. 2 is viewed from the direction of arrow III in FIG.

FIG. 4 is an enlarged view showing a lower portion of the driver's seat device shown in FIG. 1;

5 is a diagram showing a state in which a lower portion of the driver's seat device of FIG. 4 is viewed from the direction of arrow V in FIG.

6 is a diagram showing a state in which a lower portion of the driver's seat device of FIG. 4 is viewed from a direction of an arrow VI in FIG. 4;

FIG. 7 is a partial sectional view showing a configuration of a conventional driver's seat device.

[Explanation of symbols]

 2 Driver's seat device 3 Main operation panel 4 Sub operation panel 6 Fixed part 7 Movable part 9, 11 Slide rail 10 Driver's seat 31 Main operation panel bracket 49 Axis 51 Lower arm 52 Upper arm 53 Upper bracket 58 Gripping part 60 Turnbuckle unit

Claims (2)

[Claims] An operation cab of a construction machine having a driver's seat, a main operation panel for operating the construction machine, and a sub operation panel installed corresponding to an additional function added to the construction machine, A driver's seat holding means for holding the driver's seat integrally with the main operation panel and the sub operation panel so as to be movable in the front-rear direction of the driver's seat, the main operation panel and the sub operation panel, and the driver's seat; And a second relative position adjusting means for adjusting a relative position between the main operation panel and the sub operation panel. And the cab of construction machinery. 2. The cab of a construction machine according to claim 1, wherein said second relative position adjusting means includes a gripping portion for gripping an existing component fixed to said first relative position adjusting means. A first member fixed to one end and detachably attached to the first relative position adjusting means by the grip portion; a second member rotatably supported at one end to the other end of the first member; A member, sub-operation panel holding means for holding the sub-operation panel movably in the axial direction of the second member at the other end of the second member, and the first member and the second member. An operator cab of a construction machine, comprising: an angle adjusting mechanism for adjusting an angle.