JPH05278988A - Crane - Google Patents

Abstract

PURPOSE:To enable a travel movement (straight line movement) and a slewing movement (curved line movement) of a crane, and improve workability in a cargo handling work by arranging the crane on three rails, and arranging rotationial driving wheels connected to a driving motor on the center rail. CONSTITUTION:Three rails are constructed in parallel with each other in the vicinity of the ceiling of a building, and a crane 1 is constructed so as to roll respectively a pair of front/rear rotational driving wheels 5 on the center rail 3b among them and wheels 4 and 4 on both the side rails 3a and 3a. The rotational driving wheels 5 are constituted so as to put rollers 7 in turning motion by means of driving motors 6, and are supported so as to be slidable left/light freely along guide holes 8 by taking into consideration a difference in a radius of curvature (a difference in inner wheels) of the rails 3a and 3b when they move on the rails from a straight line part to a curved line part. Thereby, a travel movement and a slewing movement of the crane become free, and a cargo handling work can be carried out over a wide range in a work site.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane for hoisting and traveling a load.

[0002]

2. Description of the Related Art A conventional crane lifts a load and travels in a straight line as shown in FIGS. 3a and 3b. Further, as shown in FIG. 4, there is one that lifts and turns a load.

[0003]

In the traveling by the above-mentioned conventional method, only linear movement was possible and curved movement was not possible. or,
Since the turning method according to the conventional method described later is installed on a wall or a pillar, it can be moved only within a rotation range around the wall or pillar, which makes it difficult to move the luggage. Furthermore, if traveling and turning are combined, the structure of the crane becomes complicated and installation work becomes difficult. The present invention seeks to solve the problems associated with moving a crane and to provide a swivel movement method that is fast and safe.

[0004]

In order to achieve the above-mentioned object, the present invention hangs a crane on three rails, installs wheels with rotating shafts on the rails on both sides, and installs them on the central rail. A drive motor is connected to the wheel with a rotating shaft and installed at the position.

[0005]

The present invention hangs a crane on three rails,
Wheels with rotating shafts are installed on the rails on both sides, and wheels with rotation drives that can slide on the central rails are installed and driven to move the crane, and the luggage is moved by traveling and turning.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 1, FIG. 2 and FIG. 3, this crane (1) has three wheels fixed to a building, wheels (4) with a rotating shaft, and a central rail on each rail (3a) on both sides. It is installed so as to be suspended by a wheel (5) with a rotation drive capable of sliding on (3b). It is also located on the central rail (3b). When the wheel (5) with a rotation drive that can slide is moved from the straight part (A) to the turning part (B), the guide hole (8) is taken into consideration in consideration of the inner ring difference between the three rails (3a) and (3b). ) Through the slide shaft (9) and fixed by the arm (2) so that the slide shaft can slide left and right. Furthermore, the wheel with rotation drive (5) located on the central rail (3b) is connected to the drive motor (6) and driven by operation, and the rotation is transmitted by the roller (7), so that the crane body (1) is The vehicle is moved and turned along the three rails (3a) and (3b).

[0007]

As described above, the present invention has the following effects. Wheels with rotating shafts are installed on both sides of the three rails, and sliding wheels with a rotary drive equipped with a drive motor are connected and installed on the central rail part, so that the crane can be hung to allow traveling and turning movements. This makes it possible to significantly improve the work of moving luggage.

[Brief description of drawings]

FIG. 1 is a front view of a crane according to the present invention.

FIG. 2 is a plan view of the crane of the present invention.

FIG. 3 is a movement example of the crane of the present invention.

FIG. 4 a. The top view of the conventional crane only for traveling. b. The front view of the conventional crane only for traveling.

FIG. 5 is a front view of a conventional crane with only turning.

[Explanation of symbols]

 1 --- Crane 2 ---- Arm 3a--Rail on both sides 3b--Center rail 4 --- Wheel with rotary shaft 5 --- Wheel with rotary drive 6 --- Drive motor 7 --- Drive motor Roller interlocking with 8 −−− Guide hole 9 −−− Slide shaft A −−− Straight part of rail B −−− Curved part of rail

Claims (1)

[Claims] 1. A crane is installed on three rails, wheels with rotation drive connected to a drive motor are provided on the installation portion of the central rail, and wheels with rotation are provided on the installation portions of both rails, whereby traveling and A crane characterized by being able to rotate.