JP2003191827A - Wiper device of construction equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To expand a view field during running or an operation in rainy weather from a driver seat in a cabin of construction equipment. <P>SOLUTION: In a cabin of slewing construction equipment, wipers are disposed in the lower part of the front window, in the lower part of the rear window, on a window on the opposite side of the driver seat, and on a door window, thereby allowing improving the view field near the front below part near the equipment body, and near the right, left, and rear below part of the equipment body in a turning time or the like. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper for a swing type construction machine having a cabin.

[0002]

2. Description of the Related Art Conventionally, excavation work machines are provided with a bonnet for accommodating a prime mover on a swivel having an excavation section that can be raised and lowered and rotated, and a roof section while the operation section and driver's seat are opened. It can be roughly classified into a canopy specification with only attached, and a cabin specification with a cabin for accommodating the operation part and the driver's seat. In this cabin specification, a transparent glass or resin window is provided on the front surface, both side surfaces, and the rear surface of the cabin to secure the visibility. In particular, it is known that the front window of the front part is provided with a wiper for wiping in the rain in order to secure the visibility of the excavated portion from the driver's seat. For example, the applicant is Japanese Patent Laid-Open No. 7-18
9292 has been filed. According to this application, as shown in FIG. 9, the front window is divided into upper and lower parts, the upper glass can be opened and closed vertically, and the lower part is a fixed window. The wiper is attached to the window frame above the upper glass. Other than the above, the wiper may be installed at one of the left and right corners of the lower end of the upper glass as shown in FIG.
It is known that it is arranged near the center of the side window frame of the upper glass.

[0003]

The installation position of the wiper arranged in the front window of the cabin of the prior art is as shown in FIG.
Or above the front window as shown in FIG. Also, FIG.
And, as shown in FIG. 11, no wiper is provided on the window of the cabin door or the rear window. During excavation work and traveling, it is necessary to confirm the work equipment part such as excavation from the driver's seat, the condition of the ground to be excavated, the excavation depth and the vicinity of the feet near the aircraft for safety. Therefore, it is important to wipe the window with a wiper in case of rain in order to secure visibility and safety. Also, especially during work, turning to the left and right is frequently performed, so it is necessary to check the left and right and the rear of the machine for safety.

However, in the prior art, since the wiper can wipe only the upper part of the front window, the view in front of the machine can be secured, but since the wiper is not arranged below the front window, the vicinity of the front foot near the machine is close. Has poor visibility, and workability and safety are also problems. Further, at the time of turning, confirmation of the left and right sides near the fuselage and the vicinity of the rear foot is also difficult because the visibility is poor because the wipers are not provided in the left and right windows and the rear window, and workability and safety are also problems. Therefore, an object of the present invention is to improve the visibility near the front foot near the fuselage, and near the feet on the left and right and the rear of the fuselage when turning.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 is such that a swivel frame is rotatably mounted on a traveling device via a swivel bearing, and the swivel frame is attached to the swivel frame. , A seat, an engine, an oil tank, etc. are arranged to form an upper body structure, and the working machine is pivotally mounted on the front end of the swivel frame so that the working machine can be operated vertically and horizontally. In a swing working vehicle supported, a so-called standard backhoe cabin, a wiper is arranged below a front window.

According to a second aspect of the present invention, a swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame, and an upper body is provided. A structure is formed, and at the front end of the swivel frame,
A swinging work vehicle in which the working machine is pivotally supported via a working machine pivotally supporting portion so as to be operable in the up-down direction and the left-right direction, and at least the maximum rearward dimension of the upper body structure is within the width of the traveling device, or
A swivel frame is rotatably attached to a traveling device through a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, and a boom is mounted on the swivel frame. In a cabin of a construction vehicle in which a link-type working machine including an arm, an arm, and the like is rotatably pivoted in a vertical direction toward the front, and the turning circle of the turning base frame is within the width of the traveling device, a so-called rear small The swivel backhoe and the ultra-small swivel backhoe are provided with a wiper below the front window.

According to a third aspect of the present invention, in the first or second aspect, the front window is divided into upper and lower parts, and the lower window is provided with a wiper.

According to a fourth aspect of the present invention, a swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body. A structure is formed, and at the front end of the swivel frame,
In a cabin of a so-called standard type backhoe, which is a revolving work vehicle in which a work machine is pivotally supported via a work machine pivot portion so as to be operable in the up-down direction and the left-right direction, a wiper is arranged below a rear window.

According to a fifth aspect of the present invention, a swivel frame is rotatably mounted on a traveling device through a swivel bearing, and a seat, an engine, an oil tank, and the like are disposed on the swivel frame, and an upper body is provided. A structure is formed, and at the front end of the swivel frame,
A swinging work vehicle in which the working machine is pivotally supported via a working machine pivotally supporting portion so as to be operable in the up-down direction and the left-right direction, and at least the maximum rearward dimension of the upper body structure is within the width of the traveling device, or
A swivel frame is rotatably attached to a traveling device through a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, and a boom is mounted on the swivel frame. In a cabin of a construction vehicle in which a link-type working machine including an arm, an arm, and the like is rotatably pivoted in a vertical direction toward the front, and the turning circle of the turning base frame is within the width of the traveling device, a so-called rear small The swivel backhoe and the ultra-small swivel backhoe are provided with wipers below the rear window.

According to a sixth aspect of the present invention, a swivel frame is rotatably mounted on a traveling device through a swivel bearing, and a seat, an engine, an oil tank, and the like are disposed on the swivel frame, and an upper body is provided. A structure is formed, and at the front end of the swivel frame,
In a cabin of a so-called standard type backhoe in which a working machine is pivotally supported via a working machine pivot portion so that it can be operated in the up-down direction and the left-right direction, a wiper is arranged on a side window opposite to a door. .

According to a seventh aspect of the present invention, a swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body. A structure is formed, and at the front end of the swivel frame,
A swinging work vehicle in which the working machine is pivotally supported via a working machine pivotally supporting portion so as to be operable in the up-down direction and the left-right direction, and at least the maximum rearward dimension of the upper body structure is within the width of the traveling device, or
A swivel frame is rotatably attached to a traveling device through a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, and a boom is mounted on the swivel frame. In a cabin of a construction vehicle in which a link-type working machine including an arm, an arm, and the like is rotatably pivoted in a vertical direction toward the front, and the turning circle of the turning base frame is within the width of the traveling device, a so-called rear small The swivel backhoe and the ultra-small swivel backhoe are provided with a wiper on the side window opposite to the door.

According to the present invention of claim 8, a swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body. A structure is formed, and at the front end of the swivel frame,
This is a cabin of a so-called standard type backhoe in which a working machine is pivotally supported via a working machine pivot portion so that the working machine can be operated in the up-down direction and the left-right direction, and a wiper is arranged in a window of a door.

According to a ninth aspect of the present invention, a swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are disposed on the swivel frame to form an upper body. A structure is formed, and at the front end of the swivel frame,
A swinging work vehicle in which the working machine is pivotally supported via a working machine pivotally supporting portion so as to be operable in the up-down direction and the left-right direction, and at least the maximum rearward dimension of the upper body structure is within the width of the traveling device, or
In a cabin of a construction vehicle in which a link-type working machine composed of a boom, an arm, etc. is pivotally supported in a vertical direction in a swivel frame so that the swivel circle of the swivel frame fits within the width of the traveling device. The so-called rear small turning type backhoe and the ultra small turning type backhoe are provided with wipers on the door windows.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention shown in the accompanying drawings will be described below. FIG. 1 is a side view of a rear small turning type backhoe provided with a wiper of the present invention. Figure 2
Is also a plan view, FIG. 3 is a side view of a rear small turning type backhoe in which the wiper of the present invention is arranged below the front window, and FIG.
Is a front view in which the front window of the cabin is also divided into upper and lower parts and a wiper is arranged in the lower window, FIG. 5 is a rear view in which a wiper is arranged in the lower part of the rear window, and FIG. 6 is also in a window opposite to the door. FIG. 7 is a side view showing a side view of a rear small swing type backhoe of the related art, and FIG. 9 is a front view of the cabin divided into two. 10 is a front view of the shape, FIG. 10 is an explanatory view of the front window split type, and FIG. 11 is a rear view of the rear small turning type backhoe.

1 and 2 are a side view and a plan view of a rear small turning type backhoe provided with a wiper of the present invention.
As shown in FIGS. 1 and 2, the working unit A has a swivel base frame F in a substantially semicircular shape at the center of the crawler type traveling device 3.
And a bonnet 4 having a curved forming surface for accommodating a prime mover (not shown), an oil tank (not shown) and the like is disposed on the swivel frame F.

In the center of the front part of the swivel frame F,
A work machine pivot part 2 is provided so as to project, and the work machine pivot part 2 supports a bucket 7, an arm 6, a boom 1 and the like for excavating work, and the work machine part A is vertically and rotatably connected. There is.

Further, as shown in FIG. 2, a cabin C is provided on the left side with respect to the traveling direction, and the operation unit, the seat 5 and the like are accommodated in the cabin C. Further, the front window 15, the rear window 17, the door window 19 of the door, the side window 2
It also has 1 etc. The cabin C is configured by a peripheral wall having a substantially arc shape in a plan view so as not to project from the outer periphery of the swivel frame F.

Next, the front window 15 will be described with reference to FIG. The front window 15 is a transparent portion of glass or resin, and is attached to the window frame 22 around the front window 15 via a rubber edge or the like. In FIG. 3, the front window 15 is one, but as shown in FIG. 4, there is also an example of a two-part type in which it is composed of two upper and lower windows. The upper window is a vertical slide type, and the front lower window 16 is a fixed type. Even if it is a two-part type, the upper and lower parts may be fixed.

In FIGS. 3 and 4, reference numeral 12 is an upper wiper for wiping the upper portion of the front window 15 which is also a conventional technique. When the driver is seated on the seat 5 in the cabin C and runs the machine or operates the working machine, the upper wiper 12 can be moved in the rain to provide a relatively front view. On the other hand, 8 is a lower wiper of the present invention, which wipes the lower part of the front window 15. At the time of excavation work or traveling, it is necessary to confirm the condition of the working machine such as excavation, the condition of the ground to be excavated, the excavation depth, etc. from the driver's seat, but by wiping the lower part of the front window 15 with the lower wiper 8. Since the visibility near the front foot near the main body can be secured, the safety and the workability can be improved as compared with the case of only the upper wiper 12. Although the lower wiper 8 is provided in the lower window frame in FIGS. 3 and 4, it may be fixed to the left and right window frames or the front lower window (glass surface).

FIG. 5 is a rear view of a rear small turning type backhoe in which the wiper of the present invention is arranged below the rear window of the cabin C. Similar to the front window in FIGS. 3 and 4, the rear window 17 on the rear side of the cabin C is a transparent portion of glass or resin, and is attached to the window frame 23 around the rear window 17 via a rubber edge or the like. In order to frequently turn left and right during work, it is necessary to confirm the safety around the feet on the left and right of the machine and at the rear during this turning. By disposing the wiper 9 below the rear window 17 to wipe off rainwater and dust, the visibility near the front foot near the machine body and the left and right and rear foot areas near the machine body when turning is expanded.

FIG. 6 is a side view of a rear small turning type backhoe in which the wiper of the present invention is arranged in the window of the cabin C opposite to the door. As shown in FIG. 2, the cabin C is arranged on the left side of the working machine section A protruding forward. The door is on the left side of the cabin C, and the side window 2 is on the right side of the cabin C.
There is one. The side window 21 is a transparent portion of glass or resin, and is attached to a window frame 24 around the side window 21 via a rubber edge or the like. As in the case of FIG. 5, in order to frequently turn left and right during work, it is necessary to confirm safety around the feet on the left and right sides of the body and at the rear during this turning. By arranging the wiper 10 on the side window 21 to wipe off rainwater and dust, the field of view near the front foot near the machine body and the left and right and rear foot areas of the machine body at the time of turning etc. is expanded.

FIG. 7 is a side view in which the wiper of the present invention is arranged in the door window 19 or the lower door window 20 of the cabin C.
As shown in FIG. 7, the door window is divided into two, and there are cases in which windows that are transparent portions are provided at the top and bottom, or the windows are integrated from top to bottom. Therefore, in the present invention, the wiper 11 is arranged on the windows of these doors. The door window 19 or the lower door window 20 is a transparent portion of glass or resin, and has a window frame 25 around it.
It is attached to the rim via rubber. 5 and 6
Similar to the above case, in order to frequently turn to the left and right during work, it is necessary to confirm safety around the feet on the left and right of the body and at the rear during this turning. By disposing the wiper 11 on the door window 19 or the lower door window 20 to wipe away rainwater and dust, the visibility near the front foot near the machine body and the left and right and rear foot areas of the machine body when turning is expanded.

[0023]

As described above in detail, the present invention has the following effects.

In claim 1, a standard type backhoe, and in claim 2
In the rear small turning type backhoe and the ultra small turning type backhoe, by installing a wiper under the front window of the cabin, the condition of the working machine part such as excavating from the driver's seat and the ground to be excavated during excavation work and traveling. , It is necessary to check the digging depth, etc., but by wiping the lower part of the front window with the lower wiper 8, it is possible to secure a field of view near the front foot near the machine, so it is better than with only the upper wiper. There is a new effect of improving safety and workability. Further, even when the front window is of the two-split type, the same effect can be obtained according to the third aspect.

In the standard type backhoe, the small rear swing type backhoe, and the ultra small swing type backhoe, as in claims 4 and 5, a wiper is disposed below the rear window of the cabin. Similarly, as in claims 6 and 7, a wiper is arranged on the side window on the opposite side of the cabin door. Further, as in claims 8 and 9, a wiper is arranged on the door window of the cabin. By arranging the wiper as described above, in the case of work in rainy weather, the rainwater and dust on the wiper portion are wiped off by the wiper, so that the vicinity of the front foot near the fuselage and the left, right, and rear of the fuselage when turning, etc. The field of view near the feet of the will expand. Since the vehicle frequently turns left and right during work, there is an effect of improving safety and workability in the vicinity of the feet on the left and right sides and the rear of the body when turning.

[Brief description of drawings]

FIG. 1 is a side view of a rear small turning type backhoe provided with a wiper of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view in which a wiper is also arranged below the front window of the cabin.

[FIG. 4] Similarly, the front window of the cabin is divided into upper and lower parts,
Front view with wiper on lower window

FIG. 5 is a rear view in which a wiper is also arranged below the rear window.

FIG. 6 is a side view in which a wiper is arranged on the window opposite to the door.

FIG. 7 is a side view in which a wiper is also arranged on the window of the cabin door.

FIG. 8 is a side view of a conventional rear small turning type backhoe.

FIG. 9 is a front view of a two-part split type front window of the same cabin.

FIG. 10 is an explanatory view of a front window divided into two parts.

FIG. 11 is a rear view of the rear small turning type backhoe.

[Explanation of symbols]

A Working machine section C cabin F swivel frame 1 boom 2 Working machine branch 3 Crawler type traveling device 4 bonnet 5 seats 6 arms 7 buckets 8, 9, 10, 11 Lower wiper 12 Upper wiper 15 front window 16 Front lower window 17 Rear window 19 door window 20 lower door window 21 Side window 22, 23, 24, 25 Window frame

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Claims (9)

[Claims] 1. A swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, In a cabin of a swivel work vehicle in which a working machine is pivotally supported at a front end portion of the swivel base frame through a working machine pivotal support portion, a wiper is arranged below a front window. Wiper device for construction machinery. 2. A swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank and the like are arranged on the swivel frame to form an upper body structure, At the front end of the swivel base frame, a working machine is pivotally supported via a working machine pivotal section so as to be vertically and horizontally operable, and at least the rear maximum dimension of the upper body structure is within the width of the traveling device. A swivel frame is rotatably mounted on a swivel work vehicle or a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure. , Of a construction vehicle in which a link-type working machine including a boom and an arm is pivotally supported on the swivel base frame in a vertically rotatable manner toward the front, and the swivel circle of the swivel frame is within the width of the traveling device. Below the front window in the cabin A wiper device for a construction machine, characterized in that a wiper is provided in the. 3. A wiper device for a construction machine according to claim 1, wherein the front window is divided into upper and lower parts and a lower window is provided with a wiper. 4. A swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, In a cabin of a swivel work vehicle in which a working machine is pivotally supported at a front end portion of the swivel base frame through a working machine pivotal support portion, a wiper is arranged below a rear window. Wiper device for construction machinery. 5. A swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, At the front end of the swivel base frame, a working machine is pivotally supported via a working machine pivotal section so as to be vertically and horizontally operable, and at least the rear maximum dimension of the upper body structure is within the width of the traveling device. A swivel frame is rotatably mounted on a swivel work vehicle or a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure. , Of a construction vehicle in which a link-type working machine including a boom and an arm is pivotally supported on the swivel base frame in a vertically rotatable manner toward the front, and the swivel circle of the swivel frame is within the width of the traveling device. In the cabin, under the rear window A wiper device for a construction machine, which is equipped with an iper. 6. A swivel frame is rotatably attached to a traveling device via a swivel bearing, and a seat, an engine, an oil tank and the like are arranged on the swivel frame to form an upper body structure, In a cabin of a swivel work vehicle in which a working machine is pivotally supported at a front end portion of the swivel base frame via a working machine pivotal support portion, a wiper is provided on a side window opposite to a door. A wiper device for construction machines characterized by the above. 7. A swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, At the front end of the swivel base frame, a working machine is pivotally supported via a working machine pivotal section so as to be vertically and horizontally operable, and at least the rear maximum dimension of the upper body structure is within the width of the traveling device. A swivel frame is rotatably mounted on a swivel work vehicle or a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure. , Of a construction vehicle in which a link-type working machine including a boom and an arm is pivotally supported on the swivel base frame in a vertically rotatable manner toward the front, and the swivel circle of the swivel frame is within the width of the traveling device. On the side of the cabin opposite the door A wiper device for a construction machine, characterized in that a wiper is arranged on a side window. 8. A swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure, In a cabin of a revolving work vehicle in which a working machine is pivotally supported at a front end portion of the revolving base frame via a working machine pivotal support portion, a wiper is arranged in a door window. Wiper device for construction machinery. 9. A swivel frame is rotatably mounted on a traveling device via a swivel bearing, and a seat, an engine, an oil tank, etc. are arranged on the swivel frame to form an upper body structure, At the front end of the swivel base frame, a working machine is pivotally supported via a working machine pivotal section so as to be vertically and horizontally operable, and at least the rear maximum dimension of the upper body structure is within the width of the traveling device. A swivel frame is rotatably mounted on a swivel work vehicle or a traveling device via a swivel bearing, and a seat, an engine, an oil tank, and the like are arranged on the swivel frame to form an upper body structure. , Of a construction vehicle in which a link-type working machine including a boom and an arm is pivotally supported on the swivel base frame in a vertically rotatable manner toward the front, and the swivel circle of the swivel frame is within the width of the traveling device. Wiper on the door window in the cabin A wiper device for a construction machine, which is characterized in that it is provided.