JP2574652Y2 - Connecting structure for aerial work vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a structure for connecting two aerial work vehicles.

[0002]

2. Description of the Related Art As a structure for connecting two aerial work vehicles, for example, a structure disclosed in Japanese Utility Model Laid-Open No. 4-122590 is known. That is, the work platform is attached to the traveling platform by a lifting mechanism so as to be able to move up and down freely, and a handrail is attached to the work platform to form an aerial work vehicle, and the traveling vehicles of the two aerial work vehicles are connected by the lower connecting member, This is a connection structure in which the workbench is connected by an upper connection member.

[0003]

In the above-mentioned connecting structure, the upper connecting member is formed by integrally connecting the handrail to the floor, so that the weight of the upper connecting member becomes large and the handling becomes difficult. The work of connecting and separating the aerial work vehicles is very troublesome, and when two aerial work vehicles are separated and used as a single aerial work vehicle, the space for storing the upper connecting members is large. In other words, when two high-altitude work vehicles are connected, the worker walks between the adjacent work tables, and at that time, the handrail attached to the work table becomes an obstacle.

[0004] Therefore, an object of the present invention is to provide a connection structure for an aerial work vehicle capable of solving the above-mentioned problems.

[0005]

A work table 5 is mounted on a traveling carriage 1 by a lifting mechanism 4 so as to be able to move up and down. Aerial work vehicle and connect two aerial work vehicles
When one of the left and right handrails 18 and 19 of
With one handrail in front of and behind the connecting part
And the other of the left and right handrails 18 and 19 of the other worktable 5 is two
Between the worktables 5 and the other handrail before and after the connecting part
Connection structure for work platforms.

[0006]

[Operation] Since the left and right handrails 18 and 19 used when used alone can be used as handrails of the connecting part, the adjacent work table
It is only necessary to connect the floor plate 30 having a small weight therebetween, and the work platforms 5 of the two aerial work vehicles can be easily connected. When the aerial work vehicle is used alone, only the floor plate 30 needs to be stored, and furthermore, the connection is possible. The left and right handrails 18 and 19
The worker can walk smoothly between the work platforms 5 of the work platforms.

[0007]

[Embodiment] As shown in FIGS. 1 and 2, a traveling vehicle 1 is provided with a pair of steering and driving wheels 2 and a pair of driven wheels 3.
A work table 5 is attached to the traveling vehicle 1 via a lifting mechanism 4 composed of a link, a cylinder, and the like so as to be able to move up and down. A handrail 6 is mounted around the work table 5 to constitute an aerial work vehicle. The work platforms 1 of the two aerial work vehicles are connected by a lower connecting member 7, and the working table 5 is connected by an upper connecting member 8.

Next, details of each section will be described. The work table 5 has a structure in which side bases 11 are attached to the left and right side edges of the center fixed base 10 so as to be freely rotatable up and down over a horizontal expansion position and an upward storage position. Brackets 12 are attached to the front and rear end surfaces of the side base 11 so as to protrude laterally, and a horizontal rod 13 having a circular cross section is suspended between the brackets 12.

The handrail 6 includes a front center handrail 14 and a rear center handrail 15 attached to the center of the front and rear edges of the center fixed base 10.
A front left handrail 16 and a front right handrail 17 attached to the front and rear edges of the center fixed base 10 and the left and right sides and the side stand 11, a left handrail 18 attached along the side edges of the left and right side stands 11; Right handrail 1
9, the front center handrail 14 and the rear center handrail 15 are rotatable in the horizontal direction so that they can be opened and closed when getting on and off, and the front left handrail 16 and the front right handrail 17 are substantially horizontal. It is rotatable by 90 degrees so that it can move between an extended position protruding from the side stand 11 and a storage position stored in the central fixed base 10, and the left handrail 18 and the right handrail 19 are about 90 degrees in the horizontal plane direction. And can be moved to a cover position parallel to the left and right edges of the side base 11 and a protruding position protruding to the side, and can be detachably mounted near the front and rear of the left and right edges of the central fixed base 10. The right and left edges of the central fixed base 10 can be covered by being attached to the provided boss 20, and when the aerial work vehicle is used alone, the side base 11 is stored in the storage position and the front part as shown in FIGS. The left and right handrails 16 and 17 are used as storage positions, and Are the right handrail 18 and 19 to be able to fold the work table 5 and the handrail 6 is attached to the boss 20 to the compact.

More specifically, as shown in FIGS. 5 and 6, the front left handrail 16 and the front right handrail 17 are supported by one side support 16a, 17a.
And the other side supports 16b, 17b, and the one side supports 16a, 1
7a is rotatably fixed to a cylindrical boss 21 and can be fixed by a thumbscrew 22.
The left and right handrails 18 and 19 include first and second columns 18a, 19a, 18b and 19b.
a, 19a and cylindrical support rods 24 provided on the second columns 18b, 19b are rotatably and removably fitted to the cylindrical boss 25 and fixed with the thumb screws 26, and the other columns 16b, 17 are fixed.
b and the first and second columns 18a, 19a, 18b, 19b can be connected and separated by fixing pins 27. The center fixing base 10 and the side base 11 are vertically rotatably connected by pins 28, and a storage hook 29 is attached to the side base 11 so as to be vertically rotatable. When folded, the storage hook 29 is engaged with the hook receiver 23 to hold the side stand 11 in the storage position.

As shown in FIGS. 1 and 2, the upper connecting member 8 is a floor plate 3 such as a steel plate cloth used in a building construction site.
And hooks 31 attached to both sides of the
1 is engaged with the horizontal rod 13 so as to be detachably attached across the left and right working tables 5 and 5, and the left and right handrails 18 and 19 are protruding positions to serve as handrails of the connecting portion. That is, the right handrail 19 of the left aerial work vehicle is moved 90 degrees around the first support 19a.
And rotate the second support 19b to the right aerial platform boss 2
5 and is rotated by 90 degrees about the second support 18b of the left handrail 18 of the right aerial work vehicle, and the first support 1 is rotated.
8a is fitted and fixed to the boss 25 of the left aerial work vehicle.

As shown in FIG. 9, the lower connecting member 7 connects an H-shaped frame 42 across one side plate 40 and the other side plate 41, and the lateral pieces 40a, 4 of the one side plate 40 and the other side plate 41.
A hole 43 is formed in the end surface 1 a of the traveling vehicle 1.
A bracket 45 is attached to the bracket 44, and a pin 45 is fitted to and connected to the hole 43 from the bracket 44, and the lower connecting member 7 can be removed by extracting the pin 45.

FIGS. 10 and 11 show a second embodiment, in which the right handrail 19 of one aerial work vehicle and the left handrail 18 of the other aerial work vehicle are vertically moved by a first handrail 50 and a second handrail 51. Are connected so as to be relatively displaceable. Specifically, the first support 52 and the second support 52
The struts 53 are connected by a cross member 54 to form a first handrail 50,
The support 55 and the fourth support 56 are connected by a cross member 57 to form a second handrail 51, and a cylindrical support pin 58 is attached to the first support 52 and the fourth support 56, and the worktable 5 is rotated in a horizontal plane direction. It is detachably inserted, and the vertically long first connecting plate 5 is
9 and a pair of vertically long second connecting plates 6
0, 60, and the first connecting plate 59 as shown in FIG.
Are overlapped between a pair of second connecting plates 60, 60, a bolt 63 is inserted between a vertically long hole 61 of the first connecting plate 59 and a bolt hole 62 of the second connecting plate 60, and a nut 64 is screwed. The first column 52 and the fourth column 56 are connected to the workbench-side handrail, that is, the front left and right handrails 1.
Pins 65 are connected to the other support columns 16b and 17b of the pins 6 and 17, respectively.

In this manner, when the heights of the work platforms 5 and 5 of the left and right aerial work vehicles are different, the first and second handrails 50 and 51 are displaced in the vertical direction as shown in FIG. The height difference can be absorbed, and the floor plate 30 can absorb the height difference by rotating the hook 31 vertically with respect to the horizontal rod 13. Further, the first handrail 50 and the second handrail 51 are connected by a structure in which the first connecting plate 59 is sandwiched between a pair of second connecting plates 60, 60.
There is no play except in the vertical direction, and the first and second handrails 50 and 51 do not rattle because the first handrail 50 and the second handrail 51 are connected to the worktable 5 and the handrail on the worktable side.

[0015]

[Effect of the invention] Left and right handrails 18, 19 used when used alone
Can be used as a handrail of the connecting portion, so that the floor plate 30 having a small weight may be connected between the adjacent work platforms 5, and the work platforms 5 of the two aerial work vehicles can be easily connected. When used alone, the floor plate 30 only needs to be stored, and when connected, the left and right handrails 18 and 19 do not hinder the worker from walking between the work platforms 5 of the two aerial work vehicles. When the aerial work vehicle is used alone, the side stand 11 of the work table 5 can be made compact by storing the left and right handrails 18, 19 of the handrail. When the work platforms of the two aerial work platforms have a height difference, the first and second handrails 50 and 51 are relatively displaced up and down, and the floor plate 30 rotates up and down to absorb the height difference.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an embodiment of the present invention.

FIG. 2 is an overall plan view showing an embodiment of the present invention.

FIG. 3 is a front view of a state where a work table and handrails are stored.

FIG. 4 is a plan view showing a state where a work table and handrails are stored.

FIG. 5 is a perspective view of a work table and a handrail.

FIG. 6 is an enlarged perspective view of a portion B in FIG. 5;

FIG. 7 is an enlarged perspective view of a portion C in FIG. 5;

FIG. 8 is a perspective view showing a state where a work table and handrails are stored.

FIG. 9 is a perspective view of a lower connecting member.

FIG. 10 is a front view of the second embodiment.

FIG. 11 is a plan view of the second embodiment.

FIG. 12 is a sectional view taken along line AA of FIG. 10;

FIG. 13 is an explanatory diagram of an operation when there is a height difference.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Traveling trolley, 4 ... Elevating mechanism, 5 ... Workbench, 6 ... Handrail,
7: Lower connecting member, 10: Central fixed base, 11: Side base,
13 ... horizontal rod, 14 ... front center handrail, 15 ... rear center handrail, 16 ... front left handrail, 17 ... front right handrail, 18 ... left handrail, 19 ... right handrail, 30 ... floor, 50 ... first Handrail, 51 ...
Second handrail.

Continuing on the front page (72) Kazuyuki Yamazaki 3-20-1 Nakase, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Komatsu Manufacturing Co., Ltd. Kawasaki Plant (72) Toru Hishiyama 3-20-1 Nakase, Kawasaki-ku, Kawasaki-shi, Kanagawa Shares Komatsu Ltd. Kawasaki Plant (56) References JP-A 4-122590 (JP, U) JP-A 3-50157 (JP, U) JP-A 4-43649 (JP, U) (58) Fields surveyed (Int.Cl. ⁶ , DB name) B66F 9/00-11/04

Claims (6)

(57) [Scope of request for utility model registration] 1. A work table 5 is attached to a traveling carriage 1 by a lifting mechanism 4 so as to be able to move up and down. The left and right sides of one work table 5 when two high work vehicles are connected
Connect one of the handrails 18 and 19 between the two worktables 5
One of the handrails before and after the joint, and the left and right handrails of the other worktable 5
Connect the other of 18, 19 between the two worktables 5 and connect
A connecting structure for an aerial work vehicle, characterized in that it is the other handrail before and after . 2. A traveling vehicle 1 of two aerial work vehicles is connected to a lower station.
The connecting structure for an aerial work vehicle according to claim 1, wherein the connecting member is connected by a connecting member.
Build. 3. A work table 5 is attached to the traveling vehicle 1 by a lifting mechanism 4 so as to be able to move up and down. The left and right handrails 18 and 19 can be rotated about 90 degrees in the horizontal plane direction between a cover position covering the worktable 5 and a projecting position protruding from the worktable 5. A connecting structure for an aerial work vehicle, wherein a floor plate 30 is connected across five spaces, and the left and right handrails 18 and 19 are connected to the opposite work table 5 with projecting positions. 4. A work platform 5 is attached to the traveling carriage 1 by a lifting mechanism 4 so as to be able to move up and down. The left and right handrails 18 and 19 can be rotated about 90 degrees in the horizontal plane direction between a cover position covering the worktable 5 and a protruding position protruding from the worktable 5, and a traveling vehicle for two aerial work vehicles 1 is connected by a lower connecting member 7, a floor plate 30 is connected between the worktables 5, and the left and right handrails 18, 19 are connected to the worktables 5 on opposite sides with projecting positions. Work vehicle connection structure. 5. A work table 5 having side bases 11 attached to both sides of a central fixed base 10 so as to be vertically rotatable between a storage position and an extended position, and front and rear handrails attached to the central fixed base 10. It comprises a front left handrail 16 and a front right handrail 17 attached to the center handrails 14 and 15, the center fixed base 10 and the side base 11, and the front left and right handrails 16 and 17 are horizontally moved by about 90 degrees. The connecting structure for an aerial work vehicle according to claim 3 or 4, wherein the left and right handrails (18, 19) are detachably attached to the center fixed base (10) and the side base (11). 6. One or both sides of the left and right handrails 18, 19 are connected to a first handrail 50 and a second handrail 51 so as to be movable up and down. The connecting structure for an aerial work vehicle according to claim 3 or 4, wherein the connecting structure is rotatably connected.