JPH0622713Y2 - Aerial work vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an aerial work vehicle having two buckets for riding a worker.

(Prior Art) An aerial work vehicle equipped with two buckets for riding a worker is mounted on a vehicle (not shown) so as to be horizontally swivelable and adjustable for undulation as shown in FIGS. 4 and 5. Boom 1
A pair of left and right arms 2 and 2 ′ whose base ends are supported so as to be able to horizontally swing are provided at the tip ends of the pair of left and right arms 2 and 2 ′, and worker loading buckets 3 and 3 ′ are respectively provided at the tips of the left and right arms 2 and 2 ′. It is well known what it has. For example, Jitsukai Sho 59-1
An aerial work vehicle as disclosed in Japanese Patent No. 92099 is conventionally known.

(Problems to be solved by the invention) However, in an aerial work vehicle as disclosed in the above publication, two worker loading buckets are provided in front of the boom 1 as shown in FIG. It is possible that the workers 3, 3 ′ are brought closer to each other so that the workers on the individual worker riding buckets 3, 3 ′ can work together with each other. Shafts 4, 4'at the protruding position
The pair of left and right arms 2 and 2'can be horizontally swiveled on the shafts 4 and 4 ', so that two worker loading buckets 3 and 3'to the side of the boom 1 are provided. As shown in FIG. 5, there is a problem that the arms 2 and 2'cannot approach each other because they interfere with each other.

(Means for Solving Problems) In order to solve the above problems, an aerial work vehicle according to the present invention is an aerial work vehicle having two buckets for riding a worker, and A boom that is mounted so that it can be horizontally swiveled and the undulation can be adjusted, a posture-maintaining member that is attached to the tip of the boom and always maintains a constant ground posture or vehicle posture regardless of the boom undulation motion, and is horizontal to the posture-maintaining member. Horizontal swivel member supported so as to swivel Each arm whose base end is attached to the horizontal swivel member so as to be able to horizontally swivel and adjust undulation, respectively, and is related to the hoisting motion of the arm attached to the tip of each arm. Instead, each of the buckets is mounted so that the operator can always maintain a constant ground posture or vehicle posture.

(Operation) According to the aerial work vehicle of the present invention having the above-described structure, the horizontal swing member supported by the posture maintaining member at the tip of the boom so as to be horizontally rotatable while always maintaining a constant ground posture or vehicle posture. In addition, since each arm is mounted so that it can be horizontally swiveled and the undulation can be adjusted, when the two operator loading buckets are brought closer to each other on the side of the boom and the work described in the prior art is performed. In the same manner as in the case where two worker riding buckets are positioned in front of the boom, the horizontal swinging member is swung with respect to the boom tip end so as to be parallel to the front-back direction of the boom. It is also possible on the side.

(Embodiment) An aerial work vehicle of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of a main part of an aerial work vehicle of the present invention. In FIG. 1, 5 is a boom,
It is mounted on a vehicle (not shown) so that it can be horizontally swung and the undulations can be adjusted. Numeral 6 is attached to the tip of the boom 5 and always has a constant ground posture or vehicle posture regardless of the hoisting motion of the boom 5 (ground posture or vertical posture with respect to the vehicle)
Is a posture maintaining member that is maintained by a posture maintaining device (this posture maintaining device is a well-known technique in the related art, and therefore the description thereof is omitted here).

Reference numeral 7 denotes a horizontal swiveling member supported by the posture maintaining member 6 so as to be able to swivel horizontally, and a drive device (not shown) provided with a hydraulic motor or an electric motor disposed between the posture maintaining member 6 and the horizontal swiveling member 7. ), The posture maintaining member 6 is positioned at a substantially central portion of the horizontal rotating member 7 so as to be supported so as to be horizontally rotatable. Reference numerals 8 and 8'represent horizontal swing shafts vertically provided at both ends of the horizontal swing member 7, respectively. A hydraulic motor or an electric motor is provided between the horizontal swing member 7 and the horizontal swing shafts 8 and 8 '. A drive device (not shown) is used to make a horizontal rotation. 9 (9 ') is the base arm 10 (10') and the tip arm
11 (11 ′) and the base arm 10 (1
The base end portion of 0 ') is pivotally supported by the horizontal pivot shaft 8 (8'), and the hoisting cylinder 12 (12 ') is provided between the base end arm 10 (10') and the horizontal pivot shaft 8 (8 ') in place. Is arranged, and the arm 9 (9 ') is driven by driving the drive unit and the hoisting cylinder 12 (12').
The horizontal swivel member 7 can be swung horizontally and the undulation can be adjusted. The distal arm 11 (11 ') is the proximal arm 10 (1
(0 ') is inserted and a telescopic device (not shown) such as a hydraulic cylinder is arranged between the proximal arm 10 (10') and the distal arm 11 (11 '). The tip arm 11 (11 ') is made extendable and retractable from ′). Numeral 13 (13 ′) is a bucket for the operator to board, and the tip of the tip arm 11 (11 ′) is always horizontally swung and the arm 9 (9 ′) is always in the ground posture or the vehicle irrespective of the undulating motion of the arm 9 (9 ′). One side is attached so that the posture can be maintained. That is, the tip arm 11 (11 ')
The bucket 13 (13 ') at the tip end of the bucket always keeps a predetermined posture regardless of the swinging motion of the arm and the undulation of the arm. Illustration is omitted.

In the aerial work vehicle of the present invention configured as described above, the two buckets 13 and 13 'for passengers are placed close to each other, so that the workers who are respectively mounted on the buckets 13 and 13' When working together, it is possible to work in front of the boom 5 as shown in FIG. 2 or at the side of the boom 5 as shown in FIG. That is, in the case of carrying out the above-mentioned work by bringing the worker loading buckets 13 and 13 'close to each other on the side of the boom 5, a drive provided with a hydraulic motor or an electric motor arranged between the posture maintaining member 6 and the horizontal turning member 7. By driving a device (not shown) to horizontally swivel the horizontal swivel member 7 so as to be parallel to the front-back direction of the boom 1, the arms 9 and 9 ′ can be moved laterally of the boom 5 without interfering with each other. Even if there is a worker boarding bucket 13,13 '
It is possible to bring them closer to each other.

In the above-described embodiment, the posture maintaining member 6 is positioned at the substantially central portion of the horizontal swiveling member 7 so as to be supported so as to be horizontally swivelable. However, it is possible to position the posture maintaining member 6 at a proper position of the horizontal swiveling member 7. In this case, the horizontal swivel shafts 8 and 8 ′, which are pivotal fulcrums of the arms 9 and 9 ′, are also positioned at both ends of the horizontal swivel member 7 so as to be horizontally swivelable in the above-described embodiment, but the posture maintaining member 6 does not rotate. It is possible to position it at an appropriate position depending on the arrangement position.

(Effect of the Invention) Since the present invention is configured and operates as described above,
When approaching two worker boarding buckets to each other on the side of the boom, keep the two worker boarding buckets close to each other without the arms supporting the respective worker boarding buckets interfering with each other. This is possible, and the workers who board the respective worker boarding buckets can work in cooperation with each other, which is a great effect.

[Brief description of drawings]

1 to 3 are main part explanatory views of an aerial work vehicle according to the present invention, and FIGS. 4 and 5 are main part explanatory views of a conventional aerial work vehicle. 5: boom, 6: posture maintaining member, 7: horizontal turning member,
9,9 '; Arm, 13,13'; Bucket

Claims (1)

[Scope of utility model registration request] Claims: 1. An aerial work vehicle having two buckets for riding a worker, wherein the boom is mounted on the vehicle so as to be horizontally swivelable and adjustable, and the hoisting motion of the boom is attached to the tip of the boom. A posture maintaining member that always maintains a constant ground posture or a vehicle posture regardless of the horizontal turning member supported by the posture maintaining member so as to be horizontally turnable. The base end portions of the horizontal turning member are horizontally turned and raised and lowered, respectively. Each arm freely attached, each bucket for operator mounting which is attached to the tip of each arm so as to always maintain a constant ground posture or vehicle posture regardless of the ups and downs of the arms, and Aerial work vehicle consisting of.