JPH0620794Y2 - Aerial work vehicle - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an aerial work vehicle configured so that a boom and a bucket mounted on a bed of a truck-mounted vehicle can be stored as compactly as possible. Is.

[Prior Art] Conventionally, undulation, expansion and contraction on the bed of a truck-mounted vehicle,
The turntable standing position of an aerial work vehicle equipped with a swingable boom and a bucket placed at the tip of the boom is
The actual situation is that it is usually located in the center near the front or rear of the platform.

[Problems to be solved by the device]

Therefore, it can be said that the aerial work vehicle with the above structure exerts a very excellent effect on operability and safety at the time of work, but the boom and the bucket are stored after the work mainly at the turntable. Since the boom and the bucket are stored, the boom is necessarily located at the center in the longitudinal direction of the loading platform, and the bucket must be located at the rear of the loading platform or above or behind the cabin.

For this reason, most of the space of the cargo bed is occupied by the boom and bucket, and therefore there is almost no space for mounting work equipment, and therefore, there is no choice but to use a specially-made vehicle for transporting work equipment. It was very uneconomical and the work efficiency was extremely poor.

[Means for Solving the Purpose and Problem of Invention]

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to improve an aerial work vehicle for a truck-mounted vehicle, and particularly to a boom and a bucket equipped at the tip of the boom. To provide an aerial work vehicle that can be stored in as narrow a space as possible.To that end, a turntable equipped with a boom that can be undulated, extended, and swiveled is installed upright in one corner of the bed of a truck-mounted vehicle. In addition, the minimum length of the boom is at least approximately the same as the lateral width of the platform, and the widthwise end of the bucket is swingably attached to the tip of the boom, and the bucket swings approximately 90 degrees during storage. Thus, the outer side portion of the bucket is configured not to project outward from the vehicle body.

[Action]

By adopting the above-mentioned configuration, it is possible to effectively use the space of the loading platform in the aerial work vehicle equipped with the boom and the bucket, and of course work efficiently at a high place, except when working. Almost like a normal truck, it can be effectively used for transporting luggage and the like.

〔Example〕

An embodiment of an aerial work vehicle according to the present invention will be described in detail below with reference to FIGS. 1 and 2.

In the figure, 1 is an aerial work vehicle, 2 is a turntable vertically erected in one corner (the front left corner is used in this embodiment) of the loading platform 1a, and 3 is a base end of the turntable 2. The boom is a telescopic boom that is pivotally supported up and down.
Between the turntable 2 and the turntable 2, a hoisting cylinder (not shown) for hoisting the boom 3 with respect to the turntable 2 is arranged, and in the boom 3 an telescopic cylinder (for extending and retracting the boom 3) is installed. (Not shown in the drawing), the boom 3 is in the shortest state, and
The width of the boom 3a is substantially the same as the width of the boom 3a, and when the boom 3a is stowed, the tip of the boom 3 does not project outward from the loading platform 1a, and the boom axis X of the boom 3 is positioned parallel to the back of the cabin 1b. Let Reference numeral 4 denotes a bucket mounted on the tip of the boom 3, and the bucket 4 is attached to the boom 3 by freely swinging a bracket 4a provided on the end side surface of the bucket 4 in the width direction on the tip of the boom 3. The bucket 4 is pivotally attached and swings in the left-right direction by an electric motor M disposed between the bracket 4a and the tip of the boom 3. When the bucket 4 is stored, the bucket 4 is approximately 90 degrees with respect to the boom 3. By swinging the side surface of the bucket 4 to be positioned substantially parallel to the side surface of the boom 3, the outer side portion of the bucket 4 is configured not to project outward from the loading platform 1a.

A well-known mechanism is adopted as the turning mechanism of the turntable 2, and therefore details of the mechanism are omitted.

Hereinafter, the operation of the aerial work vehicle according to the present invention will be described based on the above embodiment.

That is, the boom 3 mounted on the above-mentioned work platform 1 can be swung within a range where it does not interfere with the cabin 1b by the turntable 2 installed upright at one corner of the loading platform 1a, and the hoisting cylinder (Fig. It is possible to perform up-and-down operation by a built-in telescopic cylinder (not shown), and the bucket 4 is swung by an electric motor M mounted between the tip of the boom 3 and the bucket 4. Since it can be rocked, the bucket 4
High-altitude work on board can be carried out in a wide range.

At the end of the work, the boom 3 is reduced and the cabin 1b
The boom 3 along the back of the
As shown in FIG. 2, the bucket 4 mounted at the tip of the bucket is swung about 90 degrees with respect to the boom 3 so that the side surface of the bucket 4 is positioned substantially parallel to the side surface of the boom 3 and stored. The outer side portion of the bucket 4 never projects outward from the loading platform 1a.

Therefore, the space of the platform 1a of the aerial work vehicle 1 has the boom 3
The bucket 4 and the bucket 4 enable effective use without occupying most of them.

[Effect of device]

As described in detail above, according to the present invention, a turntable equipped with a boom that is capable of undulating, extending, retracting, and swinging is erected at one corner of the bed of a truck-mounted vehicle, and the minimum length of the boom is at least the length of the bed. The width of the bucket is substantially the same as the width, and the widthwise end of the bucket is swingably attached to the tip of the boom, and the bucket is swung approximately 90 degrees during storage, so that the outer side of the bucket moves outward from the vehicle body. Since it is configured so that it does not project, the boom and bucket inside the loading platform can be stored compactly, so the space inside the loading platform can be used effectively, and transportation of luggage etc. is carried out in the same way as a normal truck except when working. It has an excellent effect that it can be effectively used as a product.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of an aerial work vehicle according to the present invention, and FIG. 2 is a plan view of the aerial work vehicle. 1 ... Aerial work vehicle, 1a ... Luggage platform, 1b ... Cabin, 2 ... Turntable, 3 ... Boom, 4 ... Bucket, 4a ... Bracket, M ... Electric motor, X ... Boom shaft.

Claims (1)

[Scope of utility model registration request] 1. A turntable equipped with a boom capable of undulating, extending, retracting, and swinging upright at one corner of a bed of a truck-mounted vehicle, and the minimum length of the boom is at least approximately the same as the lateral width of the bed. None, and the end of the bucket in the width direction is swingably attached to the tip of the boom, and the bucket is swung approximately 90 degrees during storage so that the outer portion of the bucket does not project outward from the vehicle body. An aerial work vehicle characterized by that.