JP3090566B2 - Cab equipment for road construction machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cab device for a road construction machine such as a road roller, an asphalt finisher and a base paver.

[0002]

2. Description of the Related Art In general,
Some of construction machinery for this type of road construction, but there is operator of the riding to perform the operation on board the driver's seat provided on the aircraft, in the construction machine of such riding, in recent years, safety, residence Attempts have been made to provide a cab device that protects the driver's seat in order to improve the working environment such as gender. By the way, for asphalt finisher road construction for construction machinery, such as gauze, it is set to be traveling at a low speed, which can not be traveling on the open road at a normal speed a lot, and for this reason, carried to the work site, the carry-out track Etc. and transported. If the cab device is provided in the driver's seat of such a road construction machine, the height of the vehicle body (vehicle height) increases by that much. When you do
The roof of the cab device is located at a higher position, and it is not permissible that safety driving is impaired, and there is a risk that the vehicle height limit specified by the Road Traffic Law may be exceeded. It cannot be provided. Therefore, it is proposed that the cab device be a low-level one so that the vehicle body height does not become too high.
The driver's seat must be lower, and as a result, there is a problem that the line of sight of the operator sitting in the driver's seat is lowered, and visibility is sacrificed.

Further, in the case where the working range is wide in the left-right direction according to the width of the road , such as the asphalt finisher, a position that is easy for the operator to control when performing the road construction work is determined by the width of the road surface and the standard. Depending on the line, etc., the center position of the body, the left side position, or the right side position may be different, so conventionally, a plurality of driver seats are provided on the body and the operator can select as necessary However, there is a problem that the driver's seat that is not used is not wasted, and the operator must move between the driver's seats one by one. Therefore, raise and lower the cab device
It is proposed to be able to freely move back and forth. Place
Road construction machinery is subject to harsh working conditions
Need to be taken into account.
Must be stable and stable while being movable
Here, there is a problem to be solved by the present invention.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to provide a cab apparatus for a road construction machine capable of eliminating these disadvantages in view of the above-mentioned circumstances. , the cab apparatus for protecting the driver's seat for the operator to boarding Upon provided on the machine body for road construction construction machinery, the machine body,該機body
Is guided by left and right running rails
A supporting member to be formed, and the cab mounting
A cab device for a construction machine for road works, comprising a lifting guide rail that guides the device so that the device can move up and down . In this case, the cab device can be a cab device for a road construction machine, which is provided with a moving means set so as to be able to move left and right beyond the left and right traveling rails. In addition,
And construction equipment for road construction is asphalt finisher
When the cab device is moved up and down asphalt
Left and right places of the screed device installed in the finisher
It is set to be performed only when it is in the home position.
Can be a cab device in a road construction construction machine, characterized in that that. In this case ,
The predetermined position in the horizontal direction where the
The cab is located above the lowest point on the top of the device
It is when you are able to cab device in road construction for a construction machine according to claim.

According to the present invention, the cab device on which the operator rides can be moved up, down, left, and right in a stabilized state .

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a traveling body of an asphalt finisher, and the traveling body 1 includes a front wheel 2, a rear wheel 3,
A hopper 4 for receiving the asphalt mixture, a bar feeder 5 for sending the asphalt mixture received by the hopper 4 backward, and a screw spreader 6 for uniformly spreading the asphalt mixture sent from the bar feeder 5 on a pavement surface. Further, the screed device 7 to be pulled by the traveling body 1 is provided with a tamper 8 for compacting the asphalt mixture spread on the pavement surface, a screed plate 9 for smoothing the pavement surface, etc. Is as before.

Reference numeral 10 denotes a body frame of the traveling body 1, and a long left and right traveling rail 1 extending over substantially the entire length of the traveling body 1 in the left and right direction is provided on an upper surface of a rear end portion of the body frame 10.
1 have been laid, to the right and left traveling rails 11, a pair of fitting grooves 11a before and after facing the lateral direction is formed.
On the other hand, reference numeral 12 denotes a support member for a cab 13 to be described later, and the left and right width of the support member 12 is set to be substantially the same as the left and right width of the cab 13. A pair of front and rear support shafts 12a facing left and right is supported. Further, 14 denotes a traveling gantry, although the left and right width of the traveling gantry 14 is set to be shorter than the lateral width of the support member 12, the front and rear left and right end portions of the traveling gantry 14, the right and left traveling rails A running roller 14a is fitted in the fitting groove 11a so as to be able to run in the left-right direction. Further, on the upper surface of the traveling gantry 14, a hollow support pipe 14b facing left and right is integrally attached. The support shaft 12a of the support member 12 is slidably inserted in the support pipe 14b so that the support shaft 12a is slidably movable in the left and right direction.
Is configured to move left and right along the left and right traveling rails 11 integrally with the traveling gantry 14 and to move left and right with respect to the traveling gantry 14.

The support member 12 can move left and right beyond the left and right ends of the left and right running rails 11 by the amount that the support member 12 moves left and right with respect to the traveling gantry 14. Means. That is, for example, when moving the support member 12 to the left,
When 4a reaches the left end of the left and right traveling rail 11, further movement of the traveling gantry 14 to the left is restricted, but the support member 12 is moved by the support shaft 12a moving to the left inside the support pipe 14b. The left and right running rails 11 can be moved further to the left beyond the left end corresponding position, so that the support member 12 has its left and right end portions projecting further outward in the left and right direction from the left and right end portions of the traveling body 1. It is configured to be able to move left and right to the position.

On the other hand, reference numeral 15 denotes a driving device for moving the support member 12 right and left, and a driving pulley 16 constituting the driving device 15 is disposed below one of the left and right ends of the left and right traveling rails 11. On the other hand, left and right running rail 1
A driven pulley 17 is arranged below the left and right other end sides of 1. An endless operation belt 18 is suspended between the pulleys 16 and 17, and the lower surface of the support member 12 is integrally fastened to the operation belt 18. The working belt 18 moves left and right based on forward and reverse driving of an interlockingly connected hydraulic motor (not shown), and the support member 12 moves left and right accordingly.

[0010] The cab 13 is a box type housing a seat 20 on which an operator sits and a driver's seat 22 equipped with various operating tools such as a driving handle 21. , Upper and lower support brackets 23, 23a protruding forward are fixed, and a pair of left and right guide rollers 24 are attached to the upper and lower support brackets 23, 23a, respectively. On the other hand, the the rear face portion of the support member 12 is a pair of facing vertical direction in a state in which the upper end is inclined slightly to the front side than the lower end, the right and left
An elevating guide rail 25 shorter than the traveling rail is fixed, but the lower half of the elevating guide rail 25 is slightly rearwardly separated from the rear surface of the body frame 10,
It protrudes below the lower surface of the support member 12. A guide roller 24 on the cab 13 side is fitted to the lift guide rail 25 so as to be movable in the vertical direction, so that the cab 13 projects rearward from the rear surface of the body frame 10. It is supported by the support member 12. Further, reference numeral 26 denotes a hydraulic cylinder, and the base end of the cylinder tube 26a of the hydraulic cylinder 26 is
The front end of a piston rod 26b of the hydraulic cylinder 26 is supported by the lower support bracket 23a. The cab 13 moves up and down with respect to the support member 12 with the up and down movement of the lower support bracket 23 a based on the expansion and contraction operation of the hydraulic cylinder 26, and the cab 13 described above.
As the support member 12 moves left and right based on the driving of the drive 5, the support member 12 moves left and right integrally.

As described above, the cab 13 is located behind the rear surface of the body frame 10, that is, above the screed device 7. It is set to be performed only when it is located at the predetermined position in the direction. When the cab 13 is located above the portion where the upper surface of the screed device 7 is lowest (in the embodiment, the left end of the cab 13 is located above the substantially central position in the left-right direction of the screed device 7). (When the part is located), so that the cab 13 can move downward as much as possible while avoiding the members protruding above the screed device 7. I have. By the way, when the asphalt finisher is mounted on a transport vehicle such as a truck and transferred, the leveling arm 27 is moved upward to transfer the screed device 7 in a lifted state. Screed device 7 and cab 1 moved down to the lowest end
3 is of course set so as not to buffer.

In the embodiment of the present invention configured as described above, the cab 13 is moved right and left integrally with the left and right movement of the support member 12 based on the driving of the driving device 15 at a position behind the rear surface of the body frame 10. At the same time, the support member 12 can be moved up and down at a predetermined position in the left-right direction. As a result, while the cab 13 for protecting the driver's seat 22 is provided to improve the working environment, when the asphalt finisher is mounted on a transport vehicle and transferred, the cab 13 is lowered. When the cab 13 is moved, the cab 13 is located at a lower position, so that the height does not exceed the vehicle height limit defined by the Road Traffic Law. It is possible to avoid such a problem that the part comes into contact with the overhead line, and to perform safe driving. further,
When the operator gets into the cab 13,
There is also an advantage that it is easy for the operator to get in if the state is moved down. Moreover, since the cab 13 is configured to move up and down at a position behind the rear surface of the body frame 10, the cab 13 is
Without separately securing space for lowering
There is an advantage that the cab 13 can be moved down to a position lower than the upper surface of the body frame 10.

On the other hand, when performing pavement work at the work site, the cab 13 is moved upward together with the driver's seat ,
If the cab 13 is moved left and right to a desired position where the operator can easily steer in accordance with the width of the road surface, the reference line, and the like, the visibility of the operator sitting in the driver's seat 22 can be sufficiently secured, and workability is greatly improved. Can be improved. Moreover, unlike the conventional case, there is no need to provide a plurality of driver's seats, and it is possible to reduce the waste of the driver's seat that is not used, or it is no longer necessary for the operator to move between driver's seats.
And in this case, it is long in the left and right direction corresponding to the road width
Left and right running rails 11 are laid on the body side
Guide rail 2 for supporting the cab 13 up and down
5 is provided so as to be movable left and right.
The cab moves while moving
13 stable installations. Further, since the cab 13 is located behind the rear surface of the body frame 10, that is, above the screed device, the operator sitting on the driver's seat 22 can visually observe the working conditions of the screw spreader 6 and the screed device 7. Therefore, there is an advantage that workability and safety can be further improved.

Moreover, in this case, the support member 1
2 is configured to be able to move left and right to a position protruding outward in the left and right direction beyond the left and right ends of the left and right running rails 11 provided on the traveling body 1 side, and to move left and right integrally with the support member 12. The cab 13 can also move left and right to a position protruding outward in the left and right direction from the left and right running rails 11. As a result, when the reference line of the pavement work is located on one side of the traveling body 1, the cab 13 is moved to the left side.
If the vehicle is moved from the right traveling rail 11 to a position protruding outward in the left-right direction, the reference line can be reliably confirmed without the operator's field of view being disturbed by the traveling machine 1, further improving workability. And the cab 13 is projected to the outside beyond the left and right widths stipulated by the Road Traffic Law, if necessary, to improve the forward visibility during the work, and to carry the cab 13 on a vehicle. It has the advantage that it can sometimes fit within the width specified by the law.

[0015]

[Advantageous effects] In short, since the present invention has been configured as narrative, the cab device, a road surface during work
Where the operator can easily operate according to the width and reference line
With the operator moved to the desired left and right position, and the operator
While it can be in a high position to secure
When transporting by loading on a transport vehicle, use the cab
By lowering the device and lowering it,
Safety at a height that does not exceed the vehicle height limit prescribed by the Traffic Law
You can run. Moreover, in this case, the cab device
Note that when moving left and right and up and down,
Support members are provided on the left and right running rails so that they can move left and right.
The support member is provided with an elevating guide rail.
To adapt to the road width like construction machinery for road construction.
If the machine becomes wider, the vehicle will travel
The rails are longer, but the left and right running rails are longer
Can be securely fixed directly to the fuselage body side. This
As a result, on the contrary,
Left and right traveling rails are provided so that they can move up and down.
Suspend the cab device in a long state from side to side as if
The left and right traveling rails are moved up and down
It is movably supported and fixed directly to the aircraft body
It will be an unstable support structure that will not be
There is no. In addition, the amount of vertical movement of the cab device
Is a transport vehicle from a state that secures forward visibility during work traveling
When mounting, lower the cab unit until it does not exceed the legal height
To the left and right running levels that need to correspond to the machine width.
Is smaller than the guide rail.
Stability even if it cannot be fixed directly to the fuselage body
Move up and down, left and right
Despite being a cab device, it meets the expected body of the cab device.
Support can be stabilized.

[Brief description of the drawings]

FIG. 1 is a side view of an asphalt finisher.

FIG. 2 is a plan view of an asphalt finisher.

FIG. 3 is an enlarged side view of a main part.

FIG. 4 is an enlarged plan view of a main part.

[Explanation of symbols]

Reference Signs List 1 traveling body 11 left and right traveling rail 13 cab 22 driver's seat 25 elevating guide rail

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B60J 7/00 B62D 33/08 E01C 19/48 E02F 9/16

Claims (4)

(57) [Claims] Upon 1. A operator provided machine body of the construction machine for road construction the cab apparatus for protecting the driver's seat to board, the machine body, run horizontally provided該機body
A support section that is guided by the row rail and is configured to be movable left and right.
Material is provided, and the cab device is vertically moved on the support member.
A cab device for a construction machine for road works, comprising a lift guide rail for guiding a location . 2. The cab device for a construction machine for road works according to claim 1, wherein the cab device is provided with a moving means set so as to be able to move left and right over right and left traveling rails. . 3. The method according to claim 1 or 2, for road works.
When the construction machine is an asphalt finisher,
The vertical movement of the bubble unit is set on the asphalt finisher.
Position in the left and right direction of the screed device
A cab device for a construction machine for road works, wherein the cab device is set to be performed only when the vehicle is on the road. 4. The cab device according to claim 3, wherein the cab device moves up and down.
The upper left side of the screed device is located
When the cab is located above the lower part
Cab device in the road construction for a construction machine which is characterized in that there.