JPH0658043U - Universal work cart - Google Patents

Abstract

(57) [Summary] [Purpose] The work range is continuously moved in any lateral direction,
Eliminate dead space. [Structure] A work platform 10 is provided on an upper end of a telescopic cylinder 4 erected on a portable trolley 1 via a universal joint 2, and a plurality of power cylinders 11a to 11c are interposed between the telescopic cylinder 4 and the trolley 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a universal work truck suitable for mounting an inner layer material on a ceiling or an upper part of a wall or exchanging fluorescent lamps at a high place.

[0002]

[Prior art]

 Conventionally, work at a high place has generally been performed by using an assembly-type scaffold, but the work of assembling and removing the scaffold has been troublesome.

Therefore, as shown in FIG. 5, an aerial work vehicle A that elevates and lowers a work table 22 by a telescopic cylinder 21 installed upright on a portable carriage 20, and a self-propelled vehicle as shown in FIGS. 6 and 7. There is known an aerial work vehicle B in which a worktable 26 is provided on a turnable vehicle body 24 of 23 by way of a boom 25 which can be elevated and retracted.

[0004]

[Problems to be solved by the device]

 In the conventional work vehicle A shown in FIG. 5, for example, the work of the portion C1 of the ceiling C is finished, and the work vehicle A must be laterally moved to the position A1 in order to perform the work of the portion C2. Therefore, the work cannot be continuously performed in the lateral direction.

In the aerial work vehicle B shown in FIGS. 6 and 7, the counterweight 27 has a large turning radius D, which is dangerous, and the boom 25 has an upper tilt angle. As shown in FIGS. 8 and 9, there is a problem that a columnar dead space exists at the center of the columnar work range E.

An object of the present invention is to provide a compact universal work carriage that does not generate a dead space by continuously moving a work range in an arbitrary lateral direction.

[0007]

According to the present invention, a telescopic cylinder is erected on a portable dolly via a universal joint, a workbench is mounted on the top of the telescopic cylinder, and the telescopic cylinder and the portable dolly are mounted. And a plurality of power cylinders are interposed between and.

It is preferable that the above-mentioned power cylinders, for example, three cylinders are provided at equal intervals around the circumference and are connected to the control unit provided on the carriage together with the telescopic cylinders.

Further, it is preferable that the workbench is attached to the yoke portion of a bracket provided at the tip of the piston rod of the telescopic cylinder with a bolt, and the workbench is held horizontally by adjusting the bolt.

[0010]

[Action]

 In the flexible work truck configured as described above, the expansion / contraction amounts of the three power cylinders are adjusted to tilt the expansion / contraction cylinder in an arbitrary direction, and the expansion / contraction cylinder is expanded / contracted to move the workbench to an arbitrary three-dimensional position. You can move.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, a semi-spherical sliding member 3 is embedded in the central portion of the upper surface of a portable carriage 1, and the sliding member 3 is formed at the lower end of a telescopic cylinder 4. The ball joint portion 5 is slidably accommodated, and the ball joint portion 5 and the sliding member 3 constitute a universal joint 2. A plurality (three in the illustrated example) of power cylinders 11a to 11c are provided between the telescopic cylinder 4 and the portable trolley 1 at equal intervals around the circumference.

On the other hand, a bracket 7 is fixedly mounted on the top of the piston rod 6 of the telescopic cylinder 4, and a yoke 8 formed at an end of the bracket 7 has a work table 10 attached to the work table 10 by bolts 9. It is mounted so that it can be adjusted around. The hydraulic circuit (not shown) of the telescopic cylinder 4 and the power cylinders 11a to 11c is connected to the control unit 12 mounted on the end of the truck 1.

Next, the operation will be described.

First, as shown in FIG. 3, the power cylinder 11a is extended, the power cylinders 11b and 11c are contracted, and the telescopic cylinder 4 is contracted to lower the workbench 10 to a position close to the floor surface G. H gets in.

Next, as shown in FIG. 4, the power cylinder 11a is contracted, the power cylinders 11b and 11c are extended, and the telescopic cylinder 4 is extended to lift the workbench 10 to a work position with respect to the portion C1 of the ceiling C. . Then, when the work on the part C1 is completed, the power cylinder 11a is contracted, the power cylinders 11b and 11c are expanded, and the telescopic cylinder 4 is contracted as necessary, and the workbench 10 is moved to the work position for the part C2. I do. Further, when the work on the part C2 is completed, the work table 10 is similarly moved to the work position corresponding to the part C3, and the work is continuously performed on the parts C1 to C3 ... It can be lost. Moreover, this continuous operation can be performed in an arbitrary angle range of 360 degrees with respect to the vertical line J of the universal joint 2. In addition, the trolley 1 is immobile, and there is no danger area due to the turning radius D (Fig. 7), which is safe.

[0017]

[Effect of device]

 Since the present invention is configured as described above, it is possible to continuously move the working range in an arbitrary lateral direction and eliminate the dead space.

Further, safety can be achieved by reducing the area occupied by the truck and fixing the truck.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side sectional view showing a ball joint.

FIG. 3 is a side view showing a state at the start of work.

FIG. 4 is a side view showing a state during work.

FIG. 5 is a side view illustrating a work aspect of an example of a conventional work platform for aerial work.

FIG. 6 is a side view showing another example of a conventional aerial work vehicle.

FIG. 7 is a top view of FIG.

FIG. 8 is a side view illustrating a work range and a dead space.

9 is a top view of FIG.

[Explanation of symbols]

 A, B ... Aerial work vehicle C ... Ceiling C1-C3 ... Ceiling part D ... Turning radius E ... Working range F ... Dead space G ... Floor surface J. ..Vertical line 1,20 ... portable carriage 2 ... universal joint 3 ... sliding material 4,21 ... extendable cylinder 5 ... ball joint 6 ... piston rod 7 ... Bracket 8 ... Yoke part 9 ... Bolts 10, 22, 26 ... Workbench 11a-11c ... Power cylinder 12 ... Control unit 23 ... Self-propelled vehicle 24 ... Body 25 ... Boom 27 ... Counter unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masaken Takeda, 3-15 Awaza, Nishi-ku, Osaka-shi, Osaka Prefecture, 3-15, Kashima Construction Co., Ltd. No. 2-7 Kashima Construction Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An extendable cylinder is erected on a portable carriage via a universal joint, a worktable is mounted on the top of the extendable cylinder, and a plurality of power cylinders are interposed between the extendable cylinder and the portable carriage. A flexible work trolley that is characterized by