JP2526528Y2 - Work vehicle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vehicle including a first trolley capable of self-propelling and a second trolley connected to the first trolley and moved by the first trolley.

[0002]

2. Description of the Related Art In the case of a ceiling, for example, in the case of a ceiling, there is a work of attaching a long lightweight steel frame to a ceiling slab and a work of attaching a ceiling board to a lightweight steel frame. Depending on the case, a work of attaching a decorative board to a ceiling board and a work of attaching various pipes such as electric wire pipes to a ceiling slab may be further added. The size of the material used for these operations, ie, the construction, differs depending on the type of the operation. Therefore, one operator may perform one operation, or a plurality of operators may work together to perform one operation. Sometimes.

[0003] As one of the working vehicles used for such interior work, a first stage capable of moving up and down, that is, a self-propelled first bogie having a first floor, and a first bogie capable of being separated into the first bogie. There has been proposed a work vehicle including a second stage that can be moved up and down, that is, a second carriage provided with a second floor, which is connected and moved by the first carriage (for example, Japanese Unexamined Patent Application Publication No. Hei 2 (1994)).
-13657, JP-A-4-64662).
The work vehicle is moved to any location on the floor slab of the building with the second trolley or transport trolley connected to the first trolley or work trolley. The first stage is used as a work stage on which an operator performs interior work such as finishing work on a ceiling, a wall, and the like. On the other hand, the second stage is used as a carrier on which materials such as ceiling materials and wall materials are placed.

However, in the conventional work vehicle, since the sizes of the first and second stages cannot be changed, a plurality of work vehicles according to the type of work, such as the size of materials, the number of workers, etc., are required. is necessary. If the first and second stages are enlarged to prevent this, it is inconvenient when small materials are used or when one work is performed by a small number of people.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a working vehicle which can be easily applied to various works.

[0006]

A work vehicle according to the present invention is provided with a self-propelled first carriage having a vertically movable first stage, and is connected to the first carriage and moved by the first carriage. A second carriage provided with a second stage which can be moved up and down, and a detachably connected to a horizontal end of the first stage at substantially the same height position as the first stage. A first auxiliary stage; and a second auxiliary stage which is located at substantially the same height as the second stage and is detachably disposed at a horizontal end of the second stage.

[0007] The first and second auxiliary stages are detached from the first and second stages, respectively, when the material to be used is small or when a small number of people work. For this reason, the work vehicle can be frequently moved, and the work of attaching small materials and the work by a small number of people can be efficiently performed. On the other hand, the first and second auxiliary stages respectively use the first and second auxiliary stages when a large amount of material is used and when one person performs one operation jointly.
Attached to the stage. For this reason, the installation work of large materials and the joint work by many people can be efficiently performed using one work vehicle without using a large work vehicle.

According to the present invention, since the first and second stages are provided with the first and second auxiliary stages which can be attached and detached, the size suitable for the type of work, such as the size of materials used and the number of workers. It can be easily changed to a work vehicle having the stage, and workability is good.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 3, a working vehicle 20 is a first bogie, ie, a working vehicle 22 capable of self-traveling on a floor slab.
And a second truck or transport truck 24 moved by the work truck.

The work cart 22 has a plurality of drive wheels 26 driven by a drive mechanism (not shown) and a plurality of wheels 28 such as casters. In contrast, transport trolley 2
4 comprises a plurality of wheels 30 such as casters,
Further, the work carriage 22 is detachably connected to the work carriage 22 by a coupler 32.

A first floor having a rectangular flat upper surface, that is, a first stage 34 is attached to the work carriage 22 by a first lifting mechanism 36 so as to be able to move up and down. A second floor having a rectangular flat upper surface, that is, a second stage 38 is attached to the transport trolley 24 so as to be able to move up and down by a second lifting mechanism 40. First stage 3
Reference numeral 4 is used as a work stage, that is, a work table on which a worker performs various works. Second stage 38
Is used as a carrier on which materials are placed.

On the first stage, the workbench 34,
An operation panel 42 is provided. The operation panel 42 is operated by an operator to control the movement of the work vehicle 22 and the elevation of the work table 34 and the second stage, that is, the bed 38.
For this reason, the operator can move the work vehicle 20 to an arbitrary place by operating the operation panel 42 on the work table 34, and move the work table 34 and the loading table 38 up and down to an arbitrary height. be able to.

In the example shown, the first lifting mechanism 36 is
It comprises a link mechanism having a pair of link devices 44 in which two link pieces are pivotally connected in an X-shape, and a cylinder device 46 for adjusting the crossing angle of the link pieces. Double link device 44
Are arranged at intervals in a direction perpendicular to the plane of FIG.

As shown in FIG. 1, one end of one link piece of each link device 44 is connected to a roller 50 slidably disposed in a guide groove 48 formed in the work carriage 22. The end is pivotally attached to a worktable 34. One end of the other link piece of each link device 44 is pivotally attached to the work carriage 22, and the other end is a roller 5 slidably disposed in a guide groove 52 formed in the work table 34.
4.

The cylinder of the cylinder device 46 is the work vehicle 2
2 and the piston rod is connected to a connecting member 56 which drives the two link devices 44 synchronously. For this reason, when the cylinder device 46 is extended and contracted, the two link devices 44 are extended and contracted in synchronization with each other, whereby the work table 34 is moved up and down.

In the example shown in the drawing, the second lifting mechanism 40 also has a pair of link devices 58 in which two link pieces are pivotally connected in an X-shape, similarly to the first lifting mechanism 36, and a crossing of the link pieces. The link mechanism has a cylinder device 60 for adjusting the angle. The two link devices 58 are arranged at an interval in a direction perpendicular to the paper surface of FIG.

As shown in FIG. 3, one end of one link piece of each link device 58 is connected to a roller 64 slidably disposed in a guide groove 62 formed in the transport vehicle 24. The end is pivotally connected to a carrier 38. Also,
One end of the other link piece of each link device 58 is pivotally connected to the carriage 24, and the other end is connected to a roller 68 slidably disposed in a guide groove 66 formed in the carrier 38. I have.

The cylinder of the cylinder device 60 is the carriage 2
4 and the piston rod is connected to a connecting member 70 which drives the two link devices 58 synchronously. Therefore, when the cylinder device 60 is extended and retracted, both link devices 58 are extended and retracted in synchronization with each other.
8 is raised and lowered.

A first auxiliary stage having a rectangular flat upper surface, that is, an auxiliary work table 72 is removably disposed at each end of the work table 34 in the width direction. In the portion, another first auxiliary stage having a rectangular flat upper surface, that is, an auxiliary work table 74 is detachably disposed. FIG. 1 is a front view of the work vehicle drawn with one auxiliary work table 72 removed.

As shown in FIG. 4, each auxiliary work table 72 is
The upper surface is flush with the upper surface of the work table 34 by the plurality of couplers 76 arranged at the widthwise end of the work table 34 at intervals in the longitudinal direction of the work table 34, and the longitudinal direction of the work table 34 is The work table 34 is connected to the longitudinal end of the work table 34 so as to extend toward the work table 34.

The upper surface of each auxiliary work table 74 is flush with the upper surfaces of the work table 34 and the auxiliary work table 72 by a plurality of couplers 78 spaced in the width direction of the auxiliary work table 72. Is connected to the longitudinal end of the auxiliary worktable 72 so as to extend in the width direction.

As shown in FIG. 5 to FIG.
A ring-shaped receiving seat 82 fixed to the channel member 80 having a U-shaped cross section fixed to the side surface of the corresponding end of the worktable 34 at intervals in the vertical direction and opposed to each other.
A pivot 84 inserted into the receiving seats from above, and an arm 8 supported by the pivot 84 so as to be swingable about a vertical axis.
6 is provided.

One end of the arm 86 is received between the receiving seats 82. The pivot 84 is passed from the upper receiving seat 82 to the lower receiving seat 82 via one end of the arm 86. Thereby, the arm 86 is moved from the first position where the arm 86 projects from the corresponding end of the work table 34 to receive the auxiliary work table 72 to the second position where the arm 86 is located below the upper surface of the work table 34. It is possible to move between positions. The first position is shown by the dotted line in FIG. 4 and shown in FIG. The second position is shown by a two-dot chain line in FIG. 4 and is shown in FIG.

As shown in FIGS. 5 and 7, each auxiliary work table 72 has a plurality of guides 88 defining recesses for receiving the arm 86 in a correct posture below the auxiliary work table 72, and A plurality of stoppers 90 are provided which are in contact with the upper surface and maintain the upper surface of the auxiliary work table 72 flush with the upper surface of the work table 34.

When each auxiliary work table 72 is mounted on the work table 34, the arm 86 is connected to the work table 3 as shown in FIG.
Arm 8 while maintaining it in the first position projecting from
The auxiliary workbench 72 may be mounted on the arm 86 so that 6 can be received in the recess of the guide 88. On the other hand, when removing each auxiliary work table 72 from the work table 34, the auxiliary work table 34 is detached from the arm 86, and then the arm 86 is moved to the upper surface of the work table 34 as shown by a two-dot chain line in FIG. It may be moved to the lower second position.

As shown in FIG. 8 and FIG.
8 is a pair of plates 92 fixed to the upper and lower surfaces of the auxiliary work table 74 so as to extend from the auxiliary work table 74 to the corresponding auxiliary work table 72 so as to receive the corresponding auxiliary work table 72; A headed pin 94 for coupling to a corresponding auxiliary workbench 72. Holes for inserting pins 94 from above are formed in both plates 92 and auxiliary worktable 72. The auxiliary worktables 72 and 74 include:
Boss 96 for reinforcing the location of each coupler 78
And a rib 98 are provided.

When connecting the auxiliary work table 74 to the work table 34, the pin 9 is placed in a state where the auxiliary work table 74 is arranged so that the end of the auxiliary work table 72 is received between the plates 92.
4 may be passed through the boss 96 through the hole. On the other hand, when removing the auxiliary work table 74 from the work table 34, the auxiliary work table 74 may be removed from the auxiliary work table 72 after removing the pin 96.

As shown in FIG. 4, the work table 34 of the loading platform 38
A second auxiliary stage having a rectangular flat upper surface, that is, an auxiliary carrier 100 is detachably disposed at an end opposite to the side. The auxiliary carrier 100 is connected to a corresponding end of the carrier 38 by a plurality of couplers 102 spaced in the longitudinal direction of the carrier 38 so that the upper surface is flush with the upper surface of the carrier 38 and extends in the longitudinal direction of the carrier 38. Unit.

The auxiliary worktable 72 may be connected to the worktable 34 by a connector of the same type as the connector 78. Further, the auxiliary work table 74 may be connected to the work table 34, or the auxiliary work table 74 may be connected to the work table 34 by the same type of connector as the connector 76.
Alternatively, it may be connected to the auxiliary worktable 72. Further, the auxiliary carrier 100 is connected to the carrier 38 by the same type of connector as the connector 76.
May be connected.

As shown in FIG. 4, the auxiliary working table 74 on the side of the loading platform 38 is provided with a plurality of couplers 104 spaced apart in the longitudinal direction of the loading platform 38 and the auxiliary working platform 74, and the widthwise end of the loading platform 38 is provided. Unit.

As shown in FIGS. 10 and 11, each coupler 104 includes a bracket 108 attached to a channel member 106 having a U-shaped cross section fixed to the side surface of the corresponding end of the carrier 38, and a bracket 108. A pin 110 mounted to extend in the horizontal direction on the
Brackets 112 attached to corresponding ends of the four
A hook 114 rotatably supported about an axis extending in the horizontal direction on the bracket 112 and engageable with the pin 110; and a hook 114 for preventing the pin 110 from being disengaged from the hook 114. And a torsion coil spring 116 acting on the torsion coil spring.

When connecting the carrier 38 and the auxiliary work table 74, the hook 114 is engaged with the pin 110 by the operator. When the connection between the carrier 38 and the auxiliary work table 74 is released, the hook 114 is detached from the pin 110 by the operator. When the hook 114 is disengaged from the pin 110,
The hook 114 is received by a stopper 118 attached to the bracket 112.

As shown in FIG. 1, one or more handrails 120 are detachably mounted on the loading platform 38, the auxiliary work platforms 72, 74, and the auxiliary platform 100, respectively. Handrail 120, work table 34, loading table 38, auxiliary work tables 72, 74
And a stage formed by the auxiliary carrier 100.

As shown in FIG. 12, each of the handrails 120 has a bar-shaped extending portion 122 protruding downward at each end thereof.
And the extension portion 122 has a flange portion 124. Each of the loading platform 38, the auxiliary working platforms 72, 74, and the auxiliary loading platform 100 has a plurality of holes 126 for receiving the extended portion 122 of the handrail 120, and a reinforcing boss 128 corresponding to each hole. Each handrail 120 is extended
2 is removably attached to the corresponding member by fitting the flange portion 124 into the hole 126 and the boss 128 of the corresponding member (the auxiliary worktable 74 in the illustrated example).

The work table 34 is also provided with the extension 12 of the handrail 120.
A plurality of holes for receiving the holes 2 and a reinforcing boss corresponding to each hole are formed.

When a large material is used for work, when one work is performed jointly by many people, the work vehicle 20 includes auxiliary work platforms 72 and 74 arranged on the work table 34 and the auxiliary carrier 1
00 is disposed on the loading platform 38 and a predetermined handrail 120 is disposed at a predetermined location. The coupler 104 is
While the worker works, the loading platform 38 and the auxiliary workstation 74 are maintained in a connected state.

When small materials are used for work, when one work is performed by a small number of people, the work vehicle 20 is
2 and 74 are detached from the worktable 34, the auxiliary bed 100 is detached from the bed 38, and a predetermined handrail 120 is used at a predetermined position of the worktable 34 and the bed 38. In this case, the transport vehicles 24 may be connected by a short connector 32, and the loading platform 38 may be connected to the work table 34.

Instead of removing all of the auxiliary tables 72, 74 and the auxiliary carrier 100, the auxiliary tables 72 or 74, or 74 or 74, depending on the type of work, such as the size of the material to be used, the number of workers performing one operation, etc. The auxiliary carrier 100 may be used.

In the illustrated embodiment, the auxiliary work tables 72, 74
And when using the auxiliary carrier 100,
The link device 58 is connected to the work carriage 22 such that the arrangement direction of the link device 58 is the horizontal direction in FIG.

Instead of making the work cart 22 self-running,
The transport trolley 24 may be able to run on its own. The bed 38 and the auxiliary bed 100 may be used by being raised and lowered to a different height level from the work table 34. Shelf-like or lattice-like carrier 3
8 and the auxiliary carrier 100 may be used.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a work vehicle according to the present invention, showing a state where an auxiliary work table on a front side is removed.

FIG. 2 is a left side view of a work cart of the work vehicle shown in FIG.

FIG. 3 is a right side view of the transport trolley of the work vehicle shown in FIG.

FIG. 4 is a plan view showing the work vehicle shown in FIG. 1 with its handrail removed.

FIG. 5 is a sectional view taken along line 5-5 in FIG.

FIG. 6 is the same cross-sectional view as FIG. 5 showing a state where the arm is shifted to a second position.

7 is a sectional view taken along line 7-7 in FIG.

8 is a cross-sectional view taken along line 8-8 in FIG.

9 is a cross-sectional view taken along line 9-9 in FIG.

FIG. 10 is a cross-sectional view taken along line 10-10 in FIG.

11 is a sectional view taken along line 11-11 in FIG.

FIG. 12 is a sectional view taken along the line 12-12 in FIG. 1;

[Explanation of symbols]

 Reference Signs List 20 work vehicle 22 work vehicle (first vehicle) 24 transport vehicle (second vehicle) 32 76, 78, 102, 104 coupler 34 work table (first stage) 36, 40 elevating mechanism 38 carrier (second) 42) Operation panel 44, 58 Link device 46, 60 Cylinder device 72, 74 Auxiliary work table (first auxiliary stage) 100 Auxiliary carrier (second stage)

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-64663 (JP, A) JP-A-4-64662 (JP, A) JP-A-2-13657 (JP, A) 50157 (JP, U) Actually open 1979-44129 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A self-propelled first bogie including a vertically movable first stage, and a second vertically movable stage coupled to the first bogie and moved by the first bogie. A second trolley comprising: a first auxiliary stage substantially at the same height as the first stage and detachably connected to a horizontal end of the first stage; and A second stage which is located at substantially the same height as the first stage and is detachably disposed at a horizontal end of the second stage.
Work vehicle, including an auxiliary stage.