JP2561499Y2 - Connecting structure for aerial work vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting two or more aerial work vehicles.

[0002]

2. Description of the Related Art When a heavy object is mounted on a ceiling at a building construction site, the heavy object may be raised and lowered by a lift machine. As a lift machine for raising and lowering a heavy object, there is known a lift machine in which a carrier is attached to a machine base by an elevating mechanism so as to be able to move up and down while the heavy object is placed on the carrier.

In such a lift machine, the weight of a heavy object is
Since it acts on the machine base through the lift mechanism, the weight of the heavy equipment and the lift machine acts intensively on the part of the floor that supports the machine, and the floor comes off when the weight exceeds the load capacity of the floor. And heavy lifting objects cannot be lifted and lowered with conventional lifting machines. In addition, the lifting force of the lift mechanism for lifting and lowering a heavy object needs to be large enough to match the weight of the heavy object. Since a cylinder is used and high-pressure fluid pressure is supplied to the cylinder, the lift machine is large and heavy, which may cause the floor to fall off as described above, and is very expensive. Becomes

[0004] Hereinafter, a description will be given of a case where two aerial work vehicles are connected, and a description of a case where three or more aerial work vehicles are connected will be given. In view of this, the present applicant has proposed a lift machine that lifts and lowers heavy objects synchronously using two aerial work vehicles. However, when two aerial work vehicles are used, the two aerial work vehicles are used. Since a heavy object is placed on the work table of the car and moves up and down and runs, it is necessary to move the two high-place work vehicles up and down and run in synchronization.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connecting structure for an aerial work vehicle in which a plurality of aerial work vehicles can be raised and lowered and run synchronously.

[0006]

Means for Solving the Problems A plurality of aerial work vehicles 7, 7 in which a work table 5 is attached to a traveling vehicle 1 so as to be able to move up and down by an elevating mechanism 4, are arranged side by side. A connection structure for an aerial work vehicle connected by an adjustable upper connection member 11.

[0007]

[Work] Work platforms 5, 7 for a plurality of aerial work vehicles 7, 7
Is lifted and lowered synchronously via the upper connecting member 11, so that a plurality of work platforms can be moved and raised and lowered synchronously and used as a heavy-lift machine. The distance between the plurality of aerial work vehicles 7, 7 can be adjusted by changing the length of the vehicle.

[0008]

[Embodiment] As shown in FIGS. 1, 2 and 3, a traveling vehicle 1 has a plurality of steering / drive wheels 2 and caster wheels 3, and a work platform 5 is mounted on the traveling vehicle 1 by a lift mechanism 4. A handrail 6 is removably attached to the periphery of the worktable 5 to constitute a high work vehicle 7.

As shown in FIGS. 1 and 2, the two traveling vehicles 1 are connected by a lower connecting member 10 and the two operating platforms 5 are connected by an upper portion. The members 11 are connected.

As shown in FIG. 4, the lower connecting member 10 has bases of a pair of one-side connecting rods 13, 13 fixed to a substrate 12, and is provided between the pair of one-side connecting rods 13, 13 intermediate part. A lower end connecting member 15 to which the cross member 14 is fixed straddling, and a base end of a pair of other connecting rods 17, 17 are fixed to the substrate 16.
5 includes a lower connecting member 19 on the other side to which a cross member 18 is fixed so as to straddle between the intermediate portions of the pair of other connecting rods 17, 17. As shown in FIG.
By fitting the lock pin 21 into one of the first and second lock pin insertion holes 22 and 23 of the other-side connecting rod 17, the one-side lower connecting member 15 and the other-side lower connecting portion 19 can be adjusted in length. The connecting piece 12a of the substrate 12 of the lower connecting member 15 on one side is detachably connected to a U-shaped bracket 24 fixed to one of the traveling vehicles 1 by connecting pins 25, and the lower connecting member 19 on the other side. The connecting piece 16a of the base plate 16 is fixed to the U-shaped bracket 26 fixed to the other traveling carriage 1 by the connecting pin 2
7 are detachably connected.

As shown in FIG. 6, the upper connecting member 11 has the base ends of a pair of one-side connecting rods 31, 31 fixed to a substrate 30, and extends between the pair of one-side connecting rods 31, 31. A one-side upper connecting member 33 to which a reinforcing member 32 is fixed;
The other end of the pair of other connecting rods 35 is fixed to the base end of the pair of other connecting rods 35, and the reinforcing member 36 is fixed between the pair of other side connecting rods 35, the other upper connecting member 37 is provided. The other side connecting rod 35 is slidably fitted in the rod 31, and the one side connecting rod 3
The lock pin 38 is inserted into one of a plurality of lock pin insertion holes 39 formed at intervals in the longitudinal direction of the other-side connecting rod 35 from the fifth side, thereby forming the one-side upper connecting member 33 and the other-side upper connecting member 37. The upper side connecting member 33 connects the hook 40 fixed to the substrate 30 with reference to FIGS.
As shown in FIG. 1, the upper side connecting member 37 engages with a connecting cross member 41 attached to one of the working tables 5 and is detachably connected. Is connected to the connecting cross member 43 attached to the other worktable 5 so as to be detachable.

Handrails 50 are respectively attached to a pair of one side and the other side connecting rods 31 and 35 of the upper connecting member 11.
As shown in FIG. 7, the handrail 50 includes a one-side handrail 53 including a one-side support 51 and a one-side crosspiece 52, and another side handrail 56 including a second-side support 54 and another side crosspiece 55. Cross member 5
The other side cross member 55 is slidably connected to 2 so that the length can be adjusted. The one side support 51 is attached to the one side connection rod 31, and the other side support 54 is mounted to the other side connection rod 35. . In addition, three or more aerial work vehicles may be connected in the same manner as described above.

[0013]

[Effects of the Invention] Work platforms 5 for a plurality of aerial work vehicles 7, 7
5 moves up and down synchronously via the upper connecting member 11,
It is suitable for a case where a plurality of aerial work vehicles can be run and raised and lowered synchronously and used as a heavy load lifting machine. Also,
By adjusting the length of the upper connecting member 11, the interval between a plurality of aerial work vehicles can be adjusted, so that the interval can be adjusted according to the length of the heavy object to be lifted or lowered or the size of the work space. is there.

[Brief description of the drawings]

FIG. 1 is a front view of a state in which two aerial work vehicles are connected.

FIG. 2 is a plan view showing a state in which two aerial work vehicles are connected.

FIG. 3 is a side view of a state where two aerial work vehicles are connected.

FIG. 4 is a perspective view of a lower connecting member.

FIG. 5 is a sectional view of a lower connecting member.

FIG. 6 is a perspective view of an upper connecting member.

FIG. 7 is a front view of a handrail.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Traveling trolley, 5 ... Work table, 6 ... Handrail, 7 ... Aerial work vehicle, 10 ... Lower connecting member, 11 ... Upper connecting member, 50 ...
handrail.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kazuyuki Yamazaki 3-20-1 Nakase, Kawasaki-ku, Kawasaki-shi, Kanagawa Komatsu Ltd. Kawasaki Plant (56) References Kaihei 3-107493 (JP, U) Japanese Utility Model Showa 60-89354 (JP, U)

Claims (3)

(57) [Scope of request for utility model registration] 1. A plurality of aerial work vehicles 7, 7 having a work table 5 mounted on a traveling vehicle 1 so as to be able to move up and down by an elevating mechanism 4,
Upper connecting member 11 capable of adjusting the length of adjacent worktables 5
Connection structure for aerial work vehicles that are connected with each other. 2. A plurality of aerial work vehicles 7, 7 in which a work table 5 is mounted on a traveling vehicle 1 so as to be able to move up and down by an elevating mechanism 4,
A connecting structure for an aerial work vehicle in which the adjacent traveling vehicle 1 and the worktable 5 are connected by a lower connecting member 10 whose length can be adjusted and an upper connecting member 11 whose length can be adjusted. 3. A handrail 6 is attached to the worktable 5, and a handrail 50 whose length is adjustable is attached to the upper connecting member 11 continuously with the handrail 6 of the worktable 5. Or the connection structure of the aerial work vehicle according to 2.