JPH0977473A - Entrance luffing crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable it to carry in a cargo up to the specified position directly from the loading bed of a truck without using a fork-lift truck even in the case where the width of a road faced to an building is narrow. SOLUTION: Fronting an entrance 2a of an building 2, t is equipped with both paired rails 1a underlaid in an upper interspace in this building 2, a crane body 1b being free of movements as guided by these paired rails 1a, a turning arm 1c pivoted with a part nearer to the rear end so as to make its turning free on a horizontal surface, at a front side portion on the central underside in the cross direction of this crane body 1b, and a winch 1n attached to the crane body 1b so as to make a hook 1na capable of hoisting and lowering from a tip of this turning arm 1c, respectively. In this constitution, each roller, maintaining a vertical horizontal level at the tip of the turning arm 1c and also capable of doing its adjustment is pivotally supported on a rear end top face of the turning arm 1 free of rotation, and then this roller is made in contact with a turning rail underlaid on a rearside of the crane body 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in, for example, a building facing a road or a mobile warehouse such as a truck, for carrying luggage on a loading platform such as a truck into the building, and for loading luggage inside the building. The present invention relates to an entrance / exit crane for carrying in a mobile warehouse such as a truck.

[0002]

2. Description of the Related Art For example, when carrying a luggage carried by a truck to a predetermined position in the building facing the road, first, when the road is wide and the truck can be put in the building, After swiveling and loading the cargo bed into the building, use an overhead traveling crane in the building to bring it to a predetermined position in the building, or if the road is narrow or a truck cannot be put in the building. For example, a forklift is used to carry a load on a loading platform into a cargo handling area such as an overhead traveling crane in the building, and then to a predetermined position in the building using an overhead traveling crane.

[0003]

That is, when the conventional overhead traveling crane is used, there is no problem if the truck is placed in the building and the width of the road facing the building is wide, but the width of the road is large. If the space is small or the truck cannot be put in the building, it is necessary to once carry the truck from the truck bed into the building using a forklift, which is extremely inefficient.

The present invention has been made in view of the above-mentioned conventional problems. For example, even if the width of the road facing the building is narrow or the truck cannot be put in the building,
By simply stopping the truck adjacent to the doorway in the building, it is possible to carry it directly from the truck bed to a predetermined position in the building without using a forklift truck, i.e. without the need for a forklift passage and It is an object of the present invention to provide an entrance / exit crane that does not require a storage area and can expand the effective range in the building.

[0005]

In order to achieve the above-mentioned object, an entrance / exit crane of the present invention is installed in a building or a mobile warehouse, and loads or loads that are outside the entrance of the building or the mobile warehouse are built or moved. An entrance / exit crane that carries to a predetermined position in a warehouse, and moves toward the entrance / exit of a building or a moving warehouse, with a pair of rails laid in the upper space of the building or the moving warehouse and being guided by this rail. A free-moving crane body, a swing arm pivotally supported near the rear end, and a hook from the tip of this swing arm on the front side portion of the bottom surface of the center of the crane body in the horizontal direction so that it can swing freely on a horizontal plane. Winding up,
A winch attached to the crane body is provided so that it can be unwound, and the upper surface of the rear end of the swivel arm maintains a vertical horizontal level at the tip of the swivel arm, and its adjustable level can be adjusted. The moving element is rotatably supported, and the rolling element is configured to abut on a swing rail laid on the lower surface of the crane body.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An entrance / exit retracting crane of the present invention is a crane which is installed in a building or a mobile warehouse and carries luggage outside the entrance of the building or the mobile warehouse to a predetermined position in the building or the mobile warehouse. , Is configured as follows. Towards the doorway of the building or mobile warehouse,
A pair of rails will be laid in the upper space of the building or mobile warehouse, and the crane body will be guided by the rails and movably installed. And, in the front part of the widthwise central lower surface of this crane body, so that it can freely swivel on a horizontal plane,
A winch is attached to the crane body so that the part near the rear end of the swivel arm is pivotally supported and the hook can be hoisted and unwound from the tip of the swivel arm. Further, on the upper surface of the rear end portion of the revolving arm, while maintaining a vertical level at the tip of the revolving arm,
The adjustable rolling element is rotatably supported, and the rolling element is brought into contact with a swing rail laid on the lower surface of the crane body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A doorway retractor crane according to the present invention will be described below with reference to an embodiment shown in FIGS. FIG. 1 is a schematic view of a doorway entry crane of the present invention installed in a building, (a) is a plan view, (b) is a front view, and FIG. 2 is FIG.
3 is a side view similar to that of FIG. 3, FIG. 3 is a detailed view showing the relationship between the crane main body and the swing arm in the doorway entry crane of the present invention, (A) is a plan view, (b) is a front view, and FIG. 4 is the doorway of the present invention. FIG. 5 is a detailed view of the crane main body in the retracting crane, (a) is a plan view, (b) is a front view, (c) is a side view, and FIG. 5 is pivotally supported at the rear end of a swing arm in the doorway retracting crane of the present invention. It is a detailed view of a rolling element part.

In the drawings, reference numeral 1 denotes an entrance / exit crane of the present invention, which is installed in a building 2 and stops outside the entrance 2a of the building 2, for example, loads 3 on a truck 4 to a predetermined position in the building 2. The configuration is as described below.

Reference numeral 1a is a pair of rails laid in the upper space of the building toward the doorway 2a of the building 2, and the crane main body 1b moves in the building 2 by being guided by the paired rails 1a. Of. When the building 2 is large, the crane body 1b may move by itself like an overhead traveling crane, but when the building 2 is narrow, it may be moved manually by an operator.

That is, in the doorway retracting crane 1 of the present invention, the moving mechanism of the crane body 1b is not particularly limited. However, when moving the crane body 1b, make sure that there is no derailment from the rail 1a or play in the vertical and width directions.
As in the present embodiment, it is necessary to take measures such as regulating the paired rails 1a by the rollers 1ba in the vertical direction and regulating one rail 1a by the rollers 1bb in the width direction.

Reference numeral 1c is a swivel arm, and a swivel shaft 1ca is erected on the upper surface of the rear end portion thereof.
As shown in FIG. 3, the crane main body 1b is pivotally supported on the front side portion of the bottom surface in the center of the width direction of the crane main body 1b so that the crane main body 1b can swivel in a horizontal plane. Also, this revolving arm 1c
A rolling element 1d is rotatably supported on the upper surface of the rear end portion as shown in FIG. This rolling element 1d is shown in FIGS.
As shown in, the crane was laid on the lower surface of the crane body 1b,
For example, the turning arm 1 is contacted with a semicircular turning rail 1e.
The horizontal level in the vertical direction at the tip of c is maintained.

By the way, the rolling element 1d is constructed so that the amount of protrusion from the upper surface of the revolving arm 1c can be adjusted so that the vertical level at the tip of the revolving arm 1c can be maintained. In this embodiment, as its adjusting mechanism, as shown in FIG. 5, a holding body 1f that rotatably supports a rolling element 1d is inserted from the upper surface of the swivel arm 1c so as to be retractable, and the lower surface of the swivel arm 1c is inserted. In addition, by pushing and holding the holding body 1f from the lower surface of the swivel arm 1c by moving the push bolt 1g screwed into the block 1h integrally attached by the bolt 1i, the swivel axis of the swivel arm 1c shown in FIG. It is disclosed that the tip end of the revolving arm 1c vertically swings about a trunnion shaft 1m pivotally supported by a bracket 1k that holds the vicinity of 1ca.

Reference numeral 1j denotes a screw shaft which is screwed into both the female screw provided at the center of the push bolt 1g and the female screw provided on the lower surface of the holding body 1f. The holding shaft 1j is held by the screw shaft 1j. Is prevented from coming off from the upper surface of the revolving arm 1c, and the push bolt 1g is prevented from loosening. Also,
The crane main body 1b can be used for turning and stopping the turning arm 1c.
Similar to the movement and stop of the above, it may be configured to be automatically performed, or may be configured to be manually performed.

1n is a winch attached to the crane body 1b, and the hook 1na of the winch is the swivel arm 1
It can be rolled up and down from the tip of c.

The doorway entry crane of the present invention has the above-described structure, and when carrying the luggage 3 on the truck 4 stopped outside the doorway 2a of the building 2 to a predetermined position in the building 2, In order. First, the crane body 1b is moved to the doorway 2a of the building 2 and stopped. Next, the revolving arm 1c is revolved until its tip projects from the doorway 2a and comes directly above the luggage 3 on the truck 4.

In this state, the winch 1n is driven, the hook 1na is unwound, and the luggage 3 is hung on the hook 1na. After that, after the hook 1na is wound and the load 3 is lifted, the load 3 is carried right above the predetermined position in the building 2 by moving the crane body 1b and turning the turning arm 1C. Thereafter, the winch 1n is driven to wind down the hook 1na, and the loading of the luggage 3 is completed.

In this embodiment, the case where the doorway entry crane of the present invention is installed in the building has been described, but the doorway entry crane of the present invention is not only installed in the building but also in a mobile warehouse such as a truck. Needless to say, it can be installed.

[0018]

INDUSTRIAL APPLICABILITY As described above, the inlet / outlet retracting crane of the present invention has a pair of rails laid in the upper space of the building or the moving warehouse toward the doorway of the building or the moving warehouse, and the rail. A crane body that is guided and movable, a swing arm that is pivotally supported at the rear end portion of the crane body, and a hook that swings in the front portion on the lower surface in the center in the width direction of the crane body so that it can swing in a horizontal plane. It is equipped with a winch attached to the crane body so that it can be hoisted and unwound from the tip of the arm.
On the upper surface of the rear end of the revolving arm, while maintaining a vertical level at the tip of the revolving arm, an adjustable rolling element is rotatably supported, and the rolling element is mounted on the crane body. Since it is configured to come into contact with the turning rail laid on the lower surface of the building, even if the width of the road facing the building is narrow or there is no truck inside the building, stop the truck adjacent to the doorway of the building. Just by doing so, it is possible to carry it directly from the truck bed to a predetermined position inside the building without using a forklift, or from the building to a predetermined position on the truck bed, improving work efficiency. , A forklift passage and a truck storage area are not required, and the effective range in the building is expanded. At that time, in the entrance / exit retracting crane of the present invention, since the tip end level of the swing arm can be adjusted to be always horizontal, the positioning accuracy at the time of transfer is good, and the work efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is a schematic view of an entrance / exit retracting crane of the present invention installed in a building, (a) is a plan view, and (b) is a front view.

FIG. 2 is a side view similar to FIG.

FIG. 3 is a detailed view showing a relationship between a crane body and a swing arm in the doorway entry crane of the present invention, (A) is a plan view, and (b) is a front view.

FIG. 4 is a detailed view of a crane main body of the doorway entry crane of the present invention, (a) is a plan view, (b) is a front view, and (c) is a side view.

FIG. 5 is a detailed view of a rolling element portion pivotally supported on the rear end of the swing arm in the doorway entry crane of the present invention.

[Explanation of symbols]

 1 Entrance / Exit Crane 1a Rail 1b Crane Main Body 1c Swivel Arm 1d Roller 1e Swivel Rail 1n Winch 1na Hook 2 Building 2a Doorway 3 Luggage

Claims (1)

[Claims] 1. An entrance / exit crane that is installed in a building or a mobile warehouse and carries luggage outside the entrance of the building or the mobile warehouse to a predetermined position in the building or the mobile warehouse, the entrance / exit of the building or the mobile warehouse. Towards
A pair of rails laid in the upper space of the building or mobile warehouse, a crane body that can be moved by being guided by these rails, and a front part of the bottom surface of the center of the crane body in the width direction that can be swung in a horizontal plane. As described above, the swivel arm pivotally supported near the rear end thereof and the winch attached to the crane body so that the hook can be hoisted and unwound from the tip of the swivel arm are provided. On the upper surface of the end portion, while maintaining the horizontal level in the vertical direction at the tip of the revolving arm, an adjustable rolling element is rotatably supported, and the rolling element is laid on the lower surface of the crane body. An entrance / exit leading-in crane characterized by being configured to abut on a swing rail.