JP3318043B2 - Work stage communication device 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 an apparatus for communicating between work stages of two aerial work vehicles.

[0002]

2. Description of the Related Art Two aerial work vehicles, each having a work stage mounted on a traveling vehicle so as to be able to move up and down, are juxtaposed, and the work stages are communicated with a bridge to provide a wide work space. −
Is known to secure the resources (for example,
See Japanese Utility Model Laid-Open No. 4-122590).

[0003]

As described in the above-mentioned publications, the conventional work stage communication device for an aerial work vehicle employs both work stages using a large framework and a heavy bridge. Since the parts are joined, there is a problem that the attachment / detachment is not easy, requires a great deal of labor, and increases the cost. In addition, since both ends of the bridge are attached to the two working stages by axial connection, if the two working stages are displaced vertically,
There is also a problem that one of the work stages may be pulled by the other, which may result in a fall accident.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide an apparatus for communicating between work stages of two aerial work vehicles at a low cost. It is an object of the present invention to provide a safe work stage communication device which does not cause a fall accident even if two work stages are displaced vertically. .

[0005]

Means for Solving the Problems In order to achieve the above object, the work stage communication device for an aerial work vehicle according to the present invention comprises a work stage (3) which is lifted and lowered on a carriage (1). Both work by arranging two aerial work vehicles that are freely equipped and configured
A work stage connected to the work stages of the vehicle by means of a communication plate,
(3) A safety stand installed around the platform (15) of (3).
Wherein a part frame (16) of total fence Purattoho - beam (1
5) It is provided to be able to stand up and down, and one aerial work vehicle
The partial frame (16) from the platform (3)
The platform which is drooped and opened by the drooping
(3) Partial frame (16) of the other aerial work vehicle is turned around one side.
The work stages (3) and (3) of both work vehicles are
It is configured to be connected by a partial frame (16) of all fences .

A work stage for two aerial work vehicles
(3) A work stage for both aerial work vehicles, which is constructed so as to be used by connecting the spaces between them with a communication plate.
The connecting plate hooks (37) and (37) are installed facing each other
Te, both contact plates engaging member (37) (37) to over and contact plate (3
8) is mounted in a non-fixed state by straddling the
Both working stages (3) with (38) mounted
(3) Each vertical movement is allowed, and the contact plate (38) is prevented from falling.

[0007]

[Action and Effect of the Invention] Working according to claim 1 stearyl - di contact device, the aerial work stearyl - Plastic di (3) (3)
Ttoho - said arm portion frame of the safety fence erected around (15) (16) Purattoho - provided to enable upright Kai倒relative beam (15), one of the aerial work platforms Part of the above
The frame (16) is suspended from the platform (3).
Other on one side of the platform (3) opened by the bottom
Turn over the frame (16) of the work platform
Part of the safety fence frame between the work stages (3) and (3) of the work vehicle
Since it is configured to be contacted by (16), no special contact board is required to inform both work stages,
There is an advantage that the structure is simple, inexpensive and extremely easy to handle.

A work stage communication device according to a second aspect of the present invention provides a work plate connecting member (37) at a position on the opposite side of the work stages (3) (3) of two aerial work vehicles. (37) is installed facing ,
Both contact plates engaging member (37) passing over the contact plate (38) of the straddle seat shape over (37) equipped with a non-fixed state, contact plates (38)
Are mounted so that the up and down movements of the two work stages (3) and (3) are allowed, and the contact plate (38) is prevented from falling. Both work stages (3)
Even if (3) is displaced vertically,
It is safe that one of the work stages is not pulled down by the other and falls down, and the communication plate (38)
Lower one of the work stages (3) while keeping it mounted
The contact plate (38) does not fall even if it is
-If work (3) is raised again, both work
It automatically returns to the state where pages (3) and (3) are communicated.
Then, the work stages (3) and (3) of the two aerial work vehicles were communicated.
While providing a large work platform,
Actions such as lumber replenishment may cause one of the work stages to drop.
-It can be performed conveniently only by ascent .

[0009]

1 is a side view of an aerial work vehicle in which the apparatus of the present invention is implemented, FIG. 2 is a perspective partial view showing an essential part thereof, and FIG. 3 is a sectional view showing a connection state between work stages. It is. In FIG. 1, the two aerial work vehicles are similarly configured, each having a traveling vehicle (1), an elevating mechanism (2) mounted on the traveling vehicle, and an upper end of the elevating mechanism. Work stage to be equipped
(3) and the like.

The traveling vehicle (1) includes traveling wheels (4) and (4) and caster wheels (5) and (5).
(4) The rotating wheels of a manual handle (7) provided on an operation column (6) on the work stage (3) are driven by a transmission medium (8) set in an elevating mechanism (2). The drive is transmitted to the shaft (9), but it may be driven by a drive source such as an electric motor mounted on the traveling vehicle.

The lifting mechanism (2) shown in the figure is constituted by a scissor link formed by arranging two X-links vertically connected to each other in two sets of right and left bending and extension links and forming a frame. It can be bent and extended by a pressure cylinder (10). The guide rails (11) and (12) are engaged with rollers at the upper and lower ends of the scissor link, and (13)
(14) is a shaft attachment portion for pivotally connecting the upper and lower ends of the other end of the scissor link to the traveling carriage and the work stage.

The work stage (3) is constructed by erecting a safety fence around a platform (15) supported on the upper end of the elevating mechanism. An entrance is provided at a part of the safety fence, and a telescopic ladder is provided at the entrance. At least a frame (16) forming one surface of the safety fence is provided on the platform (15).
2 and 3, as shown in FIG. 2 and FIG. 3, so that it can be used as a communication plate for communicating between the work stages of two aerial work vehicles. ing.

In FIGS. 2 and 3, the frame (16) is
The lower ends of the left and right pillars (17) and (17) are pivotally attached to left and right support portions (18) and (18) provided on the platform (15) so as to be rotatable about a horizontal axis. In the upright position, the holes (19) at the upper ends of the left and right pillars (17) (17)
(19) and holes (21) and (21) at the upper end of the left and right frames (20) and (20) on the other side fixed to the platform (15), respectively. Is configured to be able to maintain an upright posture by inserting and mounting. Further, the frame body (16) is provided with a tread plate (23) provided with a non-slip function such as a net-like body or a perforated plate on a side that becomes an upper surface side when the frame body (16) is turned down in a horizontal posture. I have.

Further, the lateral frame of the frame (16) of the aerial work vehicle, which has been turned down in a horizontal posture, is inserted into the side surface of the platform (15) on which the frame (16) is mounted. Receivers (24) for supporting are provided. And receiving device (24)
(24) is disposed at a position which does not prevent the frame (16) from falling down to the hanging posture, and the tread (23) includes a frame (16).
Holes (25) and (25) are provided for avoiding interference with the receiver (24) when the (16) falls down to the hanging posture.

The aerial work vehicle thus constructed is shown in FIG.
As shown in FIG. 2, two vehicles are arranged side by side with the side on which the reversible frame (16) is provided, and both traveling vehicles (1) (1)
The connection is made with the connecting rod (26) and the work stage
(3) The space between (3) and (3) is connected and connected by a frame (16) to secure a wide work space for use. The work stages (3) and (3)
In connecting and connecting the frames, the frame body of one aerial work vehicle is turned down in a hanging state as shown in FIGS. 1 and 2, and the frame body (16) of the other aerial work vehicle is turned down. In the horizontal position, and the horizontal frame at the upper end of the frame (16) is
(24) Support the invagination at (24) and place that part on the platform
A stopper (27) which detachably attaches to the platform (15) to prevent it from falling off, and further to the other left and right frame members on the platform (15)
(20) A handrail (not shown) such as a chain or a rope is attached between the hooks (28) and (28) provided on the (20).

FIGS. 4 to 7 show another embodiment of the present invention. The work platform is composed of two traveling aerial vehicles (1), an elevating mechanism (2), and an elevating mechanism. The structure for raising and lowering the jaws (3) is the same as that of the embodiment of FIGS. Thus, in this embodiment, a safety fence erected around the work stage (3);
The structure of the communication plate for communicating between the two work stages is different from that of the embodiment shown in FIGS.

In FIG. 4, FIG. 6 and FIG. 7, all of the enclosures (29)... ) Have been established, and ladders (31) are provided at their entrances (30), and ladders in any convenient enclosure (29)
(31) can be used hanging from the platform (30).

The ladder (31) forms a part of the surrounding frame (29), and is provided on both sides of the elevator (30).
(32) is provided so as to be able to move up and down, and normally, a projection (34) of a hook (33) fixed to the upper end of the ladder is provided.
(34) is maintained in the retracted state by inserting it into the holes (35) and (35) of the columns (32) and (32).
When the ladder is moved down slightly by moving the ladder slightly out of the holes (35) and (35), the hook (33) is moved to the stopper (36) provided on the platform (15). ), And is configured to be kept in a hanging state.

Any of the above-mentioned surrounding frames (29) is detachably attached to the platform (15), and further, the platform (29) is provided detachably. As shown in FIGS. 4 and 5, a connecting plate hooking member (37) is provided on a side surface of the rubber (15), and the connecting plate hooking members (37) of two opposing aerial work vehicles are provided. The connecting plate (38) can be mounted in a straddle shape between the () and (37).

The connecting plate (38) is formed by connecting, at both end portions of the flat portion, hooks (39) and (39) which bend obliquely outward and extend outwardly. ) (39) can be mounted in a mounting manner by inserting it from above into the connecting plate hooks (37) and (37). Also,
When the opposite side of the connecting plate (38) is in a downwardly inclined state, each of the latching portions (39) partially abuts the platform (15) or a member connected thereto to prevent falling. It comes off.

Therefore, in the aerial work vehicle of the embodiment shown in FIGS. 4 to 7, the detachable enclosure (29) is removed from the platform (15), and the side from which the enclosure is removed faces each other. Then, the two aerial work vehicles are made to face each other, the hooks (39) and (39) are inserted into the connecting plate hooks (37) and (37) of both working vehicles, and both work is performed by the connecting plate (38). The stages (3) and (3) can be connected in a communication state (see FIG. 5A). And FIG.
For example, as shown in FIG.
(3) Even when the heights of (3) may be different, the communication plate (38) is held so as not to drop due to the contact between the hook (39) and the platform (15). It is done.
In the embodiment shown in FIGS. 4 to 7, it is not essential to remove the enclosing frame (29), and the posture is set so as not to hinder communication between the two working stages while the enclosing frame (29) is attached. The configuration can be changed as appropriate, such as by changing.

[Brief description of the drawings]

FIG. 1 is a side view of an aerial work vehicle in which the apparatus of the present invention is implemented.

FIG. 2 is a perspective partial view of a main part.

FIG. 3 is a cross-sectional view showing a connection state between the lifting stages.

FIG. 4 is a side view of an aerial work vehicle to which another embodiment of the apparatus of the present invention is applied.

FIG. 5 is a partial view showing a main part structure of another embodiment.

FIG. 6 is a partial side view showing a structure of a work stage according to another embodiment.

FIG. 7 is a partial view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling trolley 3 Work stage 15 Platform 16 Frame which composes a safety fence 37 Connection plate hanging body 38 Communication plate

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A 4-122590 (JP, U) JP-A 53-2810 (JP, U) JP-A 5-35957 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) B60P 3/14

Claims (2)

(57) [Claims] A work platform (3) is mounted on a traveling carriage (1) so as to be movable up and down.
The work stages (3) and (3) of the two work vehicles are constructed so that they can be used by being connected to each other by a communication plate, and the platform (15) of the work stages (3) and (3) can be used. Standing around
That some frame of the safety fence (16) said Purattoho - arm
(15) It is provided to be able to stand up and down, and work on one high place
When the partial frame (16) in the car is connected to the platform (3)
And the platform opened by the drooping
A part of the other aerial work vehicle (16)
The work stages (3) and (3) of both work vehicles
A work stage communication device for an aerial work vehicle, wherein the work is communicated by a partial frame (16) of a safety fence . 2. An aerial vehicle constructed by mounting a work stage (3) on a traveling vehicle (1) so as to be able to move up and down.
The work stages (3) and (3) of both work vehicles are configured so as to be used by being connected to each other by a communication plate, and the work stages (3) and (3) of both work vehicles are opposed to each other. Hook the contact plate (3
7) (37) is installed facing to the two connecting plate hooks (37) (3)
Non solid spanned contact plate over 7) (38) to straddle the seat shape
Equipped in a fixed state, and with the communication plate (38) mounted, each work stage (3) (3) is allowed to move up and down separately,
A work stage communication device for an aerial work vehicle, wherein the communication plate (38) is configured to be prevented from falling.