JPH0643151U - Work vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] A work vehicle that moves the gripped ALC plate from the inside of the building to the outside of the building when attaching long members such as ALC plates to the outside of the building. Even if you hold something that is placed upside down, you can move the ALC plate so that the front and back of the building match the outer wall of the building, and also when moving the ALC plate outside the outer wall of the building. (EN) Provided is a work vehicle that enables construction work without moving the vehicle that may impair stability. [Structure] An extensible boom 12 is arranged on a vehicle 10 so as to be capable of undulating and expanding and contracting, and is capable of swinging on an undulating trajectory surface so as to be swingable.
Is a work vehicle including a first shaft 15 attached to the tip of the second shaft 16, a second shaft 16 attached in a direction orthogonal to the first shaft 15, and a gripping device 17 attached to the second shaft 16. The length of the one side of the vehicle 10 in plan view and the telescopic boom 1
When the two are positioned in parallel, at least the gripping device 1
It is determined that the long member gripped by 7 projects from one side of the vehicle 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work vehicle in which a telescopic boom is arranged on a vehicle so that it can be raised and lowered and turned freely, and a gripping device is provided at a front end portion of the telescopic boom.

[0002]

[Prior art]

 As a work vehicle of this type, a work vehicle as shown in FIG. 6 is conventionally known. The work vehicle will be described below with reference to FIGS. 6 and 7. The work vehicle shown in Fig. 6 is a work used to attach an ALC plate (a board made of lightweight concrete material, most of which has a weight of about 130 gram) to the outer wall of the building. It's a car. Since the scaffolding covers the building outdoors and it is not possible to take this ALC plate from the outside to the outside wall, the method of installing the ALC plates side by side with the outside wall is taken from inside. Therefore, in this work vehicle, a column 2 is vertically arranged on a vehicle 1, and an elevating member 3 is provided along the column 2 so as to be vertically movable. The elevating member 3 is provided with a base end portion of an arm 4 capable of expanding and contracting. It is placed parallel to the vehicle. An undulating member 5 is arranged at the tip of the arm 4 so that the undulating drive is possible, and a gripping device 6 for grabbing the ALC plate A is attached to the undulating member 5 so as to be rotatably driven. The gripping device 6 sandwiches both side edges of the ALC plate A with L-shaped members and grips them. Although not shown, the arm 4 can be moved left and right (about 100 to 200 mm) with respect to the elevating material 3 between the elevating material 3 and the base ends of the arms 4.

The work of attaching the ALC plate to the outer wall of the building with the conventional work vehicle configured as described above (which will be described as building work in the following description) was performed as follows. That is, the elevating member 3 is lowered, the arm 4 is extended, the undulating member 5 is laid down, and the ALC plate A previously placed on the floor surface in front of the vehicle is grasped by the grasping member. (Imaginary line in FIG. 6) Next, the elevating member 3 is raised along the support column 2, and the gripping device 6 is rotated with respect to the undulating member 5 while raising and lowering the undulating member 5 to lift the ALC plate A. It (Indicated by a solid line in FIG. 6) Then, the vehicle 1 is moved forward, and as shown in FIG. 7, the tip of the ALC plate A is projected from the outer wall of the building. After that, the vehicle 1 is moved forward, and the undulating member 5 is further raised to vertically project the ALC plate A outside the outer wall of the building. (The locus is shown by an imaginary line in FIG. 7.) Finally, the height of the ALC plate A and the horizontal position of the ALC plate A are finely adjusted by vertically moving the elevating member 5 and moving the elevating member 3 left and right to reduce the arm 4. The ALC plate A is brought into contact with the outer wall of the building, and in this state, the ALC plate A is attached to the outer wall of the building. After the mounting, the gripping of the ALC plate A by the gripping device 6 is released to start the work of installing the next ALC plate A.

[0004]

[Problems to be solved by the device]

 However, the construction work performed by the conventional work vehicle as described above had the following problems. In other words, the ALC plate A that was placed on the floor in advance had to be placed with the surface that would become the outer surface when it was attached to the outer wall of the building positioned below. If, on the other hand, the outer surface of the building is located above when it is attached to the outer wall of the building, it will not be possible to reverse the work with the previous work vehicle. There was a problem that it was necessary to prepare a simple crane or the like and return the ALC plate A in reverse. In addition, the vehicle 1 must be moved forward until the ALC plate A is projected to the outside of the outer wall of the building, and when there is an obstacle on the floor surface or a part where the floor surface is not in a uniform state, the vehicle 1 There was a risk in the construction work because the stability was lost during traveling of No. 1 and the ALC plate A was brought into contact with the building. An object of the present invention is to provide a new work vehicle that solves the above problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the work vehicle of the present invention has a telescopic boom arranged on the vehicle so that the telescopic boom can be hoisted and swiveled, and at least the telescopic boom can have its axis vertical while the telescopic boom is in the upright state. A first shaft that is swingably attached to the end of the telescopic boom so that the shaft can be horizontal, and a shaft that is in a horizontal state along a plane orthogonal to the first shaft and regardless of the swing of the first shaft. A work vehicle including a second shaft rotatably attached to the first shaft and a gripping device attached to the second shaft, wherein one side of the vehicle and the telescopic boom are positioned in parallel in a plan view. In this case, the length of the second shaft is determined so that at least the long member gripped by the gripping device projects from one side of the vehicle.

[0006]

[Action]

 The work vehicle of the present invention configured as described above operates as follows. (1). Since the gripping device is rotatably mounted on the second shaft, the back surface of the long member gripped by the gripping device can be replaced with another for construction work. (2). The length of the second shaft is determined so that at least the long member gripped by the gripping device projects from the one side of the vehicle when the one side of the vehicle and the telescopic boom are positioned in a parallel state in a plan view. Therefore, even if the long member is rotated by the second shaft, the interference with the vehicle can be avoided. Therefore, the construction work can be done with the one side of the vehicle and the telescopic boom positioned in parallel with each other in plan view. In other words, the construction work can be performed without complicating the control of the telescopic boom of the work vehicle and the rotation of each axis. (3). In the construction work when the long member is projected to the outer wall of the building, the vehicle is not run, but the erection of the telescopic boom is performed and the rotation of the second axis is performed. Stable work can be performed regardless of the situation, and work can be performed with improved safety.

[0007]

【Example】

 The work vehicle of the present invention will be described below with reference to FIGS. Reference numeral 10 denotes a vehicle, in which wheels arranged in front, rear, left and right can be steered to a position where steering angles are orthogonal to each other, and the vehicle is steered so as to be movable from the front-rear direction to the left-right direction. It Reference numeral 11 denotes a swivel base provided on the vehicle 10 so as to freely swivel, and a swivel device that enables swivel drive by an appropriate hydraulic drive means is provided between the swivel base 11 and the vehicle 10. Reference numeral 12 denotes a telescopic boom, which comprises a base boom 12a, an intermediate boom 12b which is sequentially inserted into the base boom 12a in a telescopic manner, and a front boom 12c. An appropriate telescopic drive is provided between the booms. Means are arranged. The base end of the base boom 12a is rotatably supported by the swivel base 11 so as to be capable of hoisting, and the hoisting hydraulic cylinder 13 is arranged between the base boom 12a and the swivel base 11 at a proper position. Is arranged so that it can be driven up and down.

Reference numeral 14 denotes a bracket arranged at the tip of the telescopic boom 12 so as to be swingable along the undulating trajectory surface of the telescopic boom 12, and an appropriate bracket is provided between the tip of the telescopic boom 12 and the bracket 14. A hydraulic cylinder is arranged so that the bracket 14 can be rockably driven with respect to the tip of the telescopic boom 12. A first shaft 15 is rotatably attached to the bracket 14 at the base end thereof. The swing angle of the bracket 14 with respect to the tip of the telescopic boom 12 is such that the first shaft 15 can be vertically moved even when the telescopic boom 12 is in the most lying state and the telescopic boom 12 is in the most raised state. Also determines that the first shaft 15 can be horizontal. Reference numeral 16 denotes a second shaft, which is orthogonal to the first shaft 15 and is in a horizontal state regardless of the swing of the first shaft 15, and the base end portion of which is rotatable with respect to the first shaft 15. It is attached. Reference numeral 17 is a gripping device attached to the tip of the second shaft, and the gripping portion pivotally supports two L-shaped members 17a and 17b as shown in FIG. , 17b is provided with a hydraulic cylinder 17c, and the hydraulic cylinder 17c is extended to grip a long member (hereinafter described as ALC plate A). A pair of front and rear is arranged around the axis.

Further, the length of the second shaft 16 is such that when the one side of the vehicle 10 and the telescopic boom 12 are positioned in a parallel state in a plan view, at least the ALC plate A gripped by the gripping device 17 is the vehicle 10. It is decided to project from one side. That is, it is preferable to perform the erection work with the one side of the vehicle 10 and the telescopic boom 12 positioned in parallel with each other in a plan view so as to control the ups and downs of the telescopic boom 12 and the rotation of each axis. Easy to do. Therefore, in order to prevent the ALC plate A and the vehicle 10 from contacting each other in this state, the length of the second shaft 16 is determined.

Reference numerals 18 and 19 denote outriggers arranged at the front and rear ends of the vehicle 10. The outriggers extend to the right side of the vehicle 10 and follow the tip of the outriggers so that they can rotate freely, whereby the traveling direction can be arbitrarily determined. It has wheels. Reference numerals 20 and 21 denote outriggers arranged at the front end of the vehicle 10. The base end portion of the outrigger is attached to the upper frame portion of the vehicle 10, and the tip end portion thereof is substantially parallel to the most laid state of the telescopic boom 12. As described above, the wheels are similar to those arranged on the outriggers 18 and 19 at the tip portion.

The work vehicle of the present invention thus constructed operates as follows. (1). Grasping ALC Plate A The vehicle 10 is moved to a position where the ALC plate A placed on the floor can be gripped as follows. That is, the one side of the vehicle 10 and the telescopic boom 12 are positioned in a parallel state in a plan view, the first shaft 15 is swung to a vertical state, and the telescopic boom 12 is maximally laid down to a negative undulation angle and extended. After the gripping device 17 is positioned near the center of one side edge of the long side of the ALC plate A, the telescopic boom 12 is positioned so that the gripping device 17 can grip the center of one side edge of the long side of the ALC plate A. Make undulations and expansion / contraction to finely adjust the position. After the alignment is completed, the gripping device 17 grips the central portion of one side edge of the long side of the ALC plate A. At this time, if the long side of the ALC plate A placed on the floor is not parallel to one side of the vehicle 10, the gripping device 17 will grip the ALC plate A diagonally. It suffices to rotate the first shaft 15 so that the long side is along the gripping device 17 and then grip it. When the ALC plate A placed on the floor is inclined with respect to the floor, the second shaft 16 is rotated so that the long side of the ALC plate A follows the gripping device 17, and then the ALC plate A is gripped. do it. Then, the telescopic boom 12 is contracted to the maximum while the AL C plate A is held, and the telescopic boom 12 is placed in a substantially horizontal state to move the vehicle 10.

(2). Installation work (a). When holding the ALC plate A while the lower surface of the ALC plate A placed on the floor is the surface that becomes the outer surface when it is attached to the outer wall of the building The vehicle 10 is moved to a position where the plate A can project outside the outer wall of the building. (Indicated by a solid line in FIG. 4) While raising and extending the telescopic boom 12, the first shaft 15 and the second shaft 16 are appropriately rotated, and the tip end of the ALC plate A is projected to the outer wall of the building. After that, the first and second shafts 15 and 16 are rotated while extending the telescopic boom 12 to position the ALC plate A outside the outer wall of the building in a vertical posture. Then, the height position of the ALC plate A and its position adjustment so that the ALC plate A is along the outer wall of the building are finely adjusted by the ups and downs of the telescopic boom 12 and the expansion and contraction, and the ALC plate A is attached to the outer wall of the building. (Figure 4 shows the locus of movement of ALC plate A in phantom lines)

(B). When holding the ALC plate A with the lower surface of the ALC plate A placed on the floor being the surface that becomes the inner surface when attached to the outer wall of the building The vehicle 10 is moved to a position where the plate A can project outside the outer wall of the building. (Illustrated by a solid line in FIG. 5) The first shaft 15 and the second shaft 16 are appropriately rotated while the telescopic boom 12 is laid down and extended to project the lower end portion of the ALC plate A to the outer wall of the building. After that, the telescopic boom 12 is extended and the first shaft 15 and the second shaft 16 are rotated to position the ALC plate A in the vertical posture outside the outer wall of the building. Then, the height position of the ALC plate A and the position of the ALC plate A are finely adjusted by the ups and downs of the telescopic boom 12 so that the ALC plate A is along the outer wall of the building, and the ALC plate A is attached to the outer wall of the building. (Figure 5 shows the locus of movement of ALC plate A in phantom lines)

After the ALC plate A is attached to the outer wall of the building, the gripping device 17 releases the grip of the ALC plate A, and the telescopic boom 12 is rotated so as to separate the gripping device 17 from the ALC plate A. Then, the telescopic boom 12 is contracted and raised and lowered to make the telescopic boom 12 horizontal, and the vehicle is moved to a position where the next ALC plate A can be gripped.

In the above-described installation work, when the ALC plate A is projected to the outer wall of the building, the first shaft 15 is swung to move from the vertical state to the horizontal state. Until then, the installation work can be performed only by rotating the second shaft 16. However, when the first shaft 15 is swung, the ALC plate A can be projected by the outer wall of the building by the length of the first shaft 15, and the ALC plate A can be lifted higher. Is possible.

Since the construction work performed as described above is possible with the work vehicle of the present invention, the lower surface of the ALC plate A placed on the floor surface is always the outer surface when attached to the outer wall of the building. It does not have to be a surface, and it can be dealt with only by appropriately raising and lowering the telescopic boom 12, extending and retracting, and changing the rotation direction of the second shaft 16. In addition, when the ALC plate A is projected to the outer wall of the building, the vehicle 10 is not run, but the work is carried out by raising and retracting the telescopic boom 12 and rotating the second shaft 16 so that stable work can be performed. The stability of the control does not depend on the condition of the floor surface, as in the case of 1., and the work can be performed safely.

In the construction work of the above embodiment, the rotation of the first shaft 15 is not required. For example, in the above embodiment, the ALC plate A gripped by the time device 17 is projected from the right side of the vehicle 10. The first shaft 15 is rotated to allow the ALC plate A to project from the left side of the vehicle 10 to perform the building work. Further, in the construction work in which the long side of the ALC plate A is not in the vertical posture but the long side of the ALC plate A is in the horizontal posture, the rotation of the first shaft 15 is required. That is, the gripping device 17 can be positioned in any direction by swinging and rotating the first shaft 15 and rotating the second shaft 16.

Further, in the above-described embodiment, the second shaft 16 is a shaft that is orthogonal to the first shaft and is in a horizontal state regardless of the swing of the first shaft 15. However, a plane that is orthogonal to the first shaft 15 It may be a shaft that is in a horizontal state along the axis and irrespective of the swing of the first shaft 15, and may not necessarily be a shaft that is orthogonal to the first shaft. The swing of the first shaft 15 whose base end portion is rotatably attached to the first shaft 15 (the swing of the bracket 14) is appropriately performed manually. Once gripped, the axis may be leveled so that the axis of the telescopic boom 12 is always horizontal regardless of the ups and downs of the boom 12. In this way, it becomes easier to control the work.

Further, in the above-described embodiment, the gripping device 17 has been described as having a structure capable of gripping the central portion of one side edge of the long side of the ALC plate A. However, the ALC plate A as described in the related art is explained. It may be configured such that both side edges of the long side are sandwiched. However, the mounting must be such that the ALC plate A is sandwiched and supported by the second shaft 16 from one side of the long side of the ALC plate A.

Next, in the above embodiment, the work vehicle in which the outriggers 19 to 21 are arranged has been described. However, it is necessary when the weight of the ALC plate A to be handled is heavy, and when the vehicle 10 can be stabilized. Is not necessary.

[0021]

[Effect of device]

 The work vehicle of the present invention constructed and configured as described above is effective in facilitating installation work and safety in the work.

[Brief description of drawings]

FIG. 1 is an explanatory view illustrating a work vehicle of the present invention and is a side view of the work vehicle.

FIG. 2 is an explanatory view illustrating a work vehicle of the present invention, and is a plan view of the work vehicle.

FIG. 3 is an explanatory view illustrating a gripping device for a work vehicle according to the present invention.

FIG. 4 is an explanatory view for explaining an embodiment of a construction work in the work vehicle of the present invention.

FIG. 5 is an explanatory view for explaining another embodiment of the construction work in the work vehicle of the present invention.

FIG. 6 is an explanatory diagram illustrating a conventional work vehicle.

FIG. 7 is an explanatory diagram illustrating a construction work by a conventional work vehicle.

[Explanation of symbols]

 10 Vehicle 12 Telescopic Boom 15 First Axis 16 Second Axis 17 Gripping Device A Long Member (ALC Plate)

Claims (2)

[Scope of utility model registration request] 1. A telescopic boom is arranged on a vehicle so as to be capable of hoisting and turning, and at least the telescopic boom can have its axis vertical and the telescopic boom can have its axis horizontal when the telescopic boom is raised. Rotatably attached to the first shaft, which is rotatably attached to the distal end of the first shaft, and a shaft which is in a horizontal state along a plane orthogonal to the first shaft and irrespective of the oscillation of the first shaft. A work vehicle including a second shaft and a gripping device attached to the second shaft, which is gripped by at least the gripping device when one side of the vehicle and the telescopic boom are positioned in a parallel state in a plan view. A work vehicle in which the length of the second shaft is determined so that the long member projects from one side of the vehicle. 2. The first shaft is arranged via a bracket arranged at the tip of the telescopic boom so as to be swingable along the undulating trajectory surface of the telescopic boom, and is rotatably attached to the bracket. Claim 1 characterized by the above.
The work vehicle described.