JPH04117898U - aerial work vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] In the present invention, in the traveling state, the work platform is located above the telescopic boom which is in the contracted and collapsed state.
In addition, when the telescopic boom is in a collapsed state, for aerial work vehicles whose tip end of the telescopic boom has a low lodging angle, the leveling cylinder of the work platform and its mounting bracket must be installed in a reasonable manner in the existing space of the aerial work vehicle. By placing
The aim is to reduce the overall height and width of the telescopic boom when it is running. [Structure] The distal end portion 4a of the telescopic boom 4 is provided with a cylinder connecting portion 14 at an extending end portion that passes through the outside of the telescopic boom 4 and extends toward the proximal end of the telescopic boom 4 and is located above the telescopic boom 4. The leveling cylinder mounting bracket 12 is attached, and the leveling cylinder 13 is arranged between the cylinder connecting part 14 of the leveling cylinder mounting bracket 12 and the inside of the left and right pair of brackets 16a, 16a of the workbench support part 16. An aerial work vehicle.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

In this invention, when traveling, the work platform is placed on the upper side of the telescopic boom that is collapsed and collapsed. By positioning it in the This is related to an aerial work vehicle.

0002

[Conventional technology]

This type of aerial work vehicle swings directly behind the driver's cab 2 of the vehicle 1, as shown in Figure 2. The telescopic boom 4 is attached to the swivel base 3, which is attached so as to be freely drivable, and is retractable. Rotate the telescopic boom 4 in a small state to the rear of the vehicle 1 so that the tip side of the telescopic boom 1 is the base end. It is configured to be stored by lying down so that it is lower than the side, and a pair of left and right panels extend downward. The brackets 5a, 5a of the workbench support part 5 are equipped with the brackets 5a, 5a. The lower end portion is connected to the tip portion 4a of the telescopic boom 4 via the horizontal shaft 6 so as to be able to rise and fall freely. The starting point of the telescopic boom 4 is placed between the workbench support 5 and the tip 4a of the telescopic boom 4. In relation to the lowering movement, the worktable support part 5 is raised and lowered around the horizontal axis 6, and the worktable support part 5 is raised and lowered around the horizontal axis 6. A leveling cylinder 7 is installed to maintain a constant posture at all times, and a leveling cylinder 7 is installed behind the floor surface. Work can be freely swiveled on the workbench support part 5 so that the end position is the swivel center O. A platform 8 is attached, the telescopic boom 4 is stored, and the tip side of the work platform 8 is It is configured to rotate and travel so as to face toward the proximal end of the telescoping boom. The aerial work vehicle configured in this way allows the telescopic boom 4 to rotate due to the rotation movement of the swivel platform 3. The telescopic boom 4 is extended and retracted, the telescopic boom 4 is raised and lowered, and the work platform 8 is rotated. This has the effect that the position of the large workbench 8 can be set in various ways. especially , the base end of the telescoping boom 4 is attached to the swivel base 3 and is located at a relatively high position. Since the retractable boom 4 can be swiveled above the operator's cab of the vehicle 1, its working range is further increased. It has the effect of

0003 By the way, in this type of conventional aerial work vehicle, the tip portion 4a of the telescopic boom 4 The telescopic boom 4 is extended toward the base end of the telescopic boom 4 through the outside of the telescopic boom 4. A level with cylinder connecting parts 10, 10 at the extending ends located on the left and right sides of the lower side of the cylinder. Attach the ring cylinder mounting bracket 9 and attach the leveling cylinder. -7 to the cylinder connecting part 10 of the leveling cylinder mounting bracket 9. , 10 and the outer sides of the workbench support part 5, passing through the left and right sides of the telescopic boom 4 I had left it there. In this case, a pair of left and right leveling cylinders 7 are installed. .

0004 However, in the conventional aerial work vehicle configured as described above, the tip of the telescopic boom 4 is A leveling cylinder mounting bracket 9 is attached to the lower side of part 4a. This limits the folding angle of the telescoping boom and prevents the work platform from moving while traveling. There was a problem that the height of 8 became high. In addition, the leveling cylinder 7 expands and contracts. Since it passes through the left and right sides of the boom 4, the width at the tip of the telescopic boom 4 is large. There was a problem that

[0005]

[Problem that the idea aims to solve]

The present invention includes a leveling cylinder mounting bracket 9 and a leveling cylinder. We provide an aerial work vehicle that solves the above problems by changing the placement position of the under 7. This is what we are trying to do.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, the aerial work vehicle of the present invention has a A telescopic boom that passes through the outside of the telescopic boom 4 and extends toward the base end of the telescopic boom 4. A leveling cylinder having a cylinder connecting part at the extending end located above 4. - Attach the mounting bracket and place the leveling cylinder 7 on the leveling cylinder. The cylinder connection part of the cylinder mounting bracket and the pair of left and right parts of the workbench support part 5. It is arranged between the inner sides of the brackets 5a, 5a.

[0007]

[Effect]

The work platform 8 is rotated on top of the telescopic boom 4 which is laid down so that its tip is lowered. A telescopic boom is used for aerial work vehicles that can be moved in a traveling state. There is a large space in the height direction between the tip 4a of 4 and the floor of the workbench 8. We focused on this and placed the leveling cylinder 7 in this space, so the tip of the telescopic boom 4 There is no need to place the leveling cylinder mounting bracket 9 on the lower side of the end, The height dimension of the aerial work vehicle in the running state with the lodging angle of the telescopic boom 4 increased accordingly. can be made smaller. In addition, the side of the telescopic boom 4 is attached to the leveling cylinder 7. does not elapse, so the width of the tip end 4a of the telescopic boom 4 becomes smaller.

[0008]

【Example】

An embodiment of the aerial work vehicle of the present invention will be described below with reference to FIG. The aerial work vehicle of this invention has a leveling series compared to the conventional aerial work vehicle mentioned above. The arrangement configuration of the cylinder mounting bracket 9 and leveling cylinder 7 is different. Therefore, in the following explanation, except for this point, the explanation used in the explanation of conventional aerial work vehicles will be used. The symbols will be used as synonyms in the following description as well. In FIG. 1, 12 has its base fixed to the tip 4a of the telescopic boom 4. This leveling cylinder mounting part is a leveling cylinder mounting part. The portion 12 extends toward the base end of the telescopic boom 4 through the upper outer side of the telescopic boom 4. The extending end portion located above the telescopic boom 4 is provided with a cylinder connecting portion.

[0009] In this embodiment, the leveling cylinder mounting brackets 12 are It has a gutter-like structure consisting of a side plate and a bottom plate that connects the left and right side plates. It is located above the telescopic boom 4. 13 is a leveling cylinder, and the cylinder 13a is used for leveling the cylinder 13a. Place the cylinder between the left and right side plates of the cylinder mounting bracket 12, and The base end of the cylinder 13a is connected to the cylinder connecting portion 14 via the pivot 15. At the same time, the tip of the piston rod 13b is connected to a pair of left and right brushes of the workbench support section 16. The piston rod is positioned inside (between) the sockets 16a, 16a, and The tip of 13b is connected to a pair of left and right brackets 16a, 16a with a pivot 17. ing.

0010 In this way, in the aerial work vehicle of the present invention, the telescopic boom 4 has the telescopic Extends past the outside of the boom 4 toward the base end of the telescopic boom 4 and extends above the telescopic boom 4 A leveling cylinder installation having a cylinder connecting portion 14 at the extending end located at Attach the mounting bracket 12, and install the leveling cylinder 13. The cylinder connecting part 14 of the cylinder mounting bracket 12 and the workbench support part 1 It is arranged between the inner sides of the pair of left and right brackets 16a, 16a of No.6.

[0011] Therefore, as in the aerial work vehicle described in the conventional technology, the lower end of the telescopic boom 4 is does not have the leveling cylinder mounting bracket 9, so it cannot be stored. The telescopic boom 4 in this state can increase its lodging angle, which makes it easier to move while traveling. This allows the overall height of the aerial work vehicle to be lowered. Also, leveling cylinder Since the holder 13 is located above the telescopic boom 4, it is located above the telescopic boom 4 tip 4a. The width becomes smaller.

0012

[Effect of the idea]

The aerial work vehicle of the present invention configured as described above has the following features: Install the leveling cylinder using the existing space above the tip 4a of the telescopic boom 4. A simple structure in which the leveling bracket 12 and leveling cylinder 13 are placed in this existing space. Although it has a simple configuration, it is possible to reduce the overall height of the aerial work vehicle in the running state. High-place work where the leveling cylinder 13 does not pass over both sides of the telescopic boom 4 The practical effect is great because you can get a car.

[Brief explanation of drawings]

FIG. 1 is an explanatory side view of the aerial work vehicle of the present invention.

FIG. 2 is an explanatory side view of a conventional aerial work vehicle.

[Explanation of symbols]

1 vehicle 2 Driver's cabin 3 Swivel base 4 Telescopic boom 4a Tip of telescopic boom 4 6 Horizontal axis 8 Workbench 12 Leveling cylinder attachment part 13 Leveling cylinder 13a cylinder 13b Piston rod 14 Cylinder connection part 16 Workbench support part 16a, 16a bracket

Claims (1)

[Scope of utility model registration request] Claim 1: A telescoping boom is mounted on a swivel base mounted directly behind the driver's cab of the vehicle so that it can be driven up and down, and the telescoping boom in a contracted state is swiveled to the rear of the vehicle so that the tip side of the telescoping boom is The lower end of the bracket of the work platform support part is configured to be stored by lying down so as to be lower than the base end side, and is provided with a pair of left and right brackets extending downward. The work platform support section is connected to the tip of the telescopic boom so that the work platform support section can be raised and lowered through the telescopic boom. A leveling cylinder is interposed to maintain a constant posture at all times, and a workbench is attached to the workbench supporting part so that the workbench can be rotated freely so that the center of rotation is at a position near the rear end of the floor surface, and a telescopic boom is installed. An aerial work vehicle configured to store the work platform and move by turning the work platform so that its tip side faces toward the proximal end of the telescopic boom, wherein the outside of the telescopic boom is attached to the tip of the telescopic boom. A leveling cylinder mounting bracket having a cylinder connecting portion is attached to the extending end portion extending toward the base end of the telescopic boom and located above the telescopic boom, and the leveling cylinder is attached to the cylinder of the leveling cylinder mounting bracket. An aerial work vehicle characterized by being arranged between a connecting part and the inside of a pair of left and right brackets of a work platform support part.