JPH07179202A - Single post type traveling crane - Google Patents

Abstract

PURPOSE:To attain weight reduction and cost reduction of the whole crane in a single post type crane formed by supporting a carriage having a cargo transferring-loading means with one side in either the front or the rear of a single column so as to be freely raised and lowered. CONSTITUTION:A column 4 is formed in a hollow square column shape being integral moldings of aluminium, and the raising-lowering guide rail parts 13 and 14 continuing in the column lengthwise direction are formed on both left and right side walls 11 and 12, and in the raising-lowering guide rail parts 13 and 14, the column side walls 11 and 12 are formed in a recessed and projecting shape in a cross section, and a carriage 5 is supported with the raising- lowering guide rail parts 13 and 14 and carriage 5 side guide rollers 27 and 28 so as to be freely raised and lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling crane for loading and unloading used in an automatic warehouse, and in particular, a carriage equipped with a load transfer means is supported on one of the front and rear sides of a column so as to be vertically movable. The present invention relates to a single-post type traveling crane.

[0002]

2. Description of the Related Art As a conventional traveling crane of this type, for example, as disclosed in Japanese Patent Application Laid-Open No. 61-75706, for the carriage lifting guide rails on the left and right side surfaces of the prismatic pillar main body. The member is fixed and projected 1
It is known that a column of a book is erected, guide rollers on the elevator carriage side are engaged with members of the carriage elevator guide rails on both sides of the column, and the carriage is supported so as to be able to be raised and lowered along the column.

As described above, in the conventional traveling crane, at least two parts of the support column, that is, the support main body and the member for the carriage elevating guide rail are connected and integrated by a method such as welding or bolting up. However, since the cost of manufacturing the columns themselves is high and becomes heavy, the crane itself is expensive and heavy. Furthermore, since the carriage lifting guide rail members are positioned and fixed on both the left and right side surfaces of the column body, it is also difficult to increase the relative positional accuracy of the pair of left and right lifting guide rails, and the carriage can be lifted smoothly and satisfactorily. It was also difficult to do.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, the features of which will be described with reference numerals of embodiments described later in parentheses. As shown, it is a single-post type traveling crane in which a carriage (5) equipped with a load transfer means (7) is supported so as to be able to move up and down on either side before or after a single strut (4). Four)
Is a hollow prism that is an integrally molded aluminum product, and has vertical guide rails (13, 14) formed in the left and right side walls (11, 12) that are continuous in the column length direction. The rail parts (13, 14) are formed by forming the side walls (11, 12) of the support column in an uneven shape in the cross section, and the guide rail parts (13, 14) for raising and lowering and the guide rollers on the carriage (5) side. (27,28)
It is characterized in that the carriage (5) is supported so that it can be moved up and down.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying illustrative drawings. In FIG. 1, reference numeral 1 denotes a single-post type traveling crane for loading and unloading according to an embodiment of the present invention, which has a floor. One prop 4 is erected on a trolley (lower frame) 3 traveling on a guide rail 2 laid on the surface, and an elevating carriage 5 is supported so as to be able to ascend and descend on one side of the prop 4 in front of and behind (the crane traveling direction) Has been done. Reference numeral 6 is a steady rail for guiding the upper end of the support column 4, and reference numeral 7 is a load transfer means such as a running fork provided on the lifting carriage 5.

As shown in FIG. 2, the pillar 4 is formed by using a hollow prismatic molded product 8 integrally molded from an aluminum material, and the molded product 8 is one of the four side walls 9 to 12 on the front, rear, left and right sides. Equipped with elevating guide rails 13 and 14 that are continuous in the column length direction and are formed by recessing the side walls inward at the center positions of the left and right side walls 11 and 12 in the width direction, and the cross-sectional shape is longitudinally symmetrical and left and right. It is symmetrical. Then, the lifting guide rail portions 13 and 14 provided on the left and right side walls 11 and 12, respectively.
A connecting wall portion 15 that connects the bottom portions 13a and 14a of the above and passes through the center position in the cross section of the column is integrally formed.
It should be noted that the front and rear side walls 9 and 10 are also formed by recessing substantially the entire width of the front and rear side walls 9 and 10. The recessed portions 16 and 1 are continuous in the column length direction.
Forming 7.

Further, the molded product 8 has four corners 18-2.
Component mounting rail grooves 22a, 22b to 25a, 2 which are continuous outwardly at right angles to each other on both sides of the respective columns and which are continuous in the column length direction.
5b is formed. Rail groove for mounting these parts 2
2a to 25b are so-called dovetail-shaped ones in which the width on the inner side is wider than the width of the entrance.

The above-mentioned molded product 8 cut into a predetermined length is
The elevating guide rail portions 13 and 14 are erected on the carriage (lower frame) 3 in a direction in which they are located on both the left and right sides of the crane 1 to form a column 4. On the other hand, a pair of left and right brackets 26a, 26b adjacent to both the left and right sides of the support column 4 are provided on the rear surface of the lift carriage 5, and the brackets
Each of a and 26b has a pair of upper and lower front / rear steadying guide rollers 27 and a pair of upper and lower left / right steadying guide rollers 28 that are loosely fitted to the elevating guide rail portions 13 and 14 located on both the left and right sides of the column 4. Has been done. The diameter of the front / rear steadying guide roller 27 is equal to that of the lifting guide rail portions 13,
The width is slightly smaller than the width of 14, and the left and right steady rest guide rollers 28 are in contact with or close to the bottom surfaces of the elevating guide rail portions 13 and 14.

Reference numeral 29 denotes a lifting drive chain that suspends the lifting carriage 5, and a path portion from a guide toothed wheel on the upper end side of the column 4 to a driving toothed wheel on the side of the carriage (lower frame) 3 is located inside the column 4. , Through the cavity between the front side wall 9 and the connecting wall 15. Further, for example, the detection control plate 30 for lifting control of the lifting carriage 5 is mounted at an arbitrary height in the component mounting rail grooves 22a to 23b of the left and right corners 18 and 19 located on the carriage lifting path side of the support column 4. The
Out of the component mounting rail grooves 24a to 25b of the opposite left and right corners 20 and 21, in the component mounting rail grooves 24b and 25a oriented in the front-rear direction, for example, it is stretched between the lifting carriage 5 and the crane frame. Power supply line guide means 3
1, etc. are attached via the bracket 32. Reference numeral 33 denotes a photoelectric switch that detects the plate to be detected 30 and is attached to the lift carriage 5 side.

[0010]

According to the traveling crane of the present invention which can be implemented and used as described above, the pillars thereof are hollow prisms which are integrally molded of aluminum, and the left and right side walls (11, 12) are formed. ) Is formed with vertical guide rails (13, 14) that are continuous in the length direction of the column.
(13,14) is a columnar side wall (11,12) formed in an uneven shape in the cross section.
And the guide rollers (27, 28) on the side of the carriage (5) support the carriage (5) so that it can move up and down.
It is possible to provide the supporting column with sufficient bending strength without taking any special reinforcement measures such as increasing the wall thickness of the supporting column, in other words, even if the molded supporting column has a relatively thin wall thickness. In addition, it is not necessary to mount a separate carriage raising / lowering guide rail member, and in combination with the material being aluminum, it is possible to reduce the weight of the support column and hence the crane as a whole and significantly reduce the cost.

Further, since the lifting guide rail portions (13, 14) on both the left and right sides of the supporting column are integrally formed with the supporting column itself, the relative positional accuracy of both lifting guide rails becomes very high. It is possible to smoothly and satisfactorily perform the raising and lowering movement of the carriage guided by the both raising and lowering guide rail portions.

In particular, as shown in the embodiment, for mounting parts which are continuous in the longitudinal direction of the column on both corners (18, 19) of the side wall (9) adjacent to the carriage (5) of the column (4). Rail groove (2
2a to 23b) and attach the lift control target plate (30) to the rail groove, or on the side opposite to the side wall (9) adjacent to the carriage (5) of the column (4). Side wall (1
Each of the corners (20, 21) of (0) is formed with a component mounting rail groove (24a to 25b) continuous in the column length direction, and the feeder line guide means (31) is supported in the rail groove. Bracket
By mounting the (32), not only can the bending strength of the column itself be increased by forming these rail grooves for mounting the components, but also the lifting control target detection plate (30) and brackets for mounting various components can be attached to the column. It can be easily and easily installed at the height of, and its height can be easily adjusted.

[Brief description of drawings]

FIG. 1 is a side view of a single post type crane according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional plan view of the relevant part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Single post type crane 4 Support 5 Lifting carriage 7 Load transfer means 8 Aluminum extruded product 9 Support side wall 10 Support side wall 11 Support side wall 12 Support side wall 13 Lift guide rail part 14 Lift guide rail part 15 Connecting wall part 18 Support Corner part 19 Support corner part 20 Support corner part 21 Support corner part 22a Parts mounting rail groove 22b Parts mounting rail groove 23a Parts mounting rail groove 23b Parts mounting rail groove 24a Parts mounting rail groove 24b Parts mounting rail groove 25a Parts mounting rail groove 25b Parts mounting rail groove 27 Front / rear steadying guide roller 28 Left / right steadying guide roller 30 Detecting plate for lifting control 31 Feed line guide means 32 Bracket 33 Photoelectric switch

Claims (3)

[Claims] 1. A single-post type traveling crane comprising a carriage (5) provided with a load transfer means (7) movably supported on one of the front and rear sides of a single column (4), The column (4) is a hollow prism that is an integrally molded product of aluminum, and the left and right side walls (11, 12) have guide rails (13, 14) for elevation that are continuous in the column length direction. The elevating guide rails (13, 14) are formed by forming the pillar side walls (11, 12) in a concavo-convex shape in the cross section, and the elevating guide rails (13, 14) and the carriage (5). Side guide roller
(27,28) A single-post type traveling crane in which the carriage (5) is supported so that it can move up and down. 2. The side wall adjacent to the carriage (5) of the column (4).
On both corners (18, 19) of (9), rail grooves (22a-23b) for component mounting that are continuous in the column length direction are formed, and the detection plate (30) for lifting control is mounted on the rail grooves. Claim 1
Single post type traveling crane described in. 3. Side wall adjacent to the carriage (5) of the column (4).
Rail corners (24a to 25b) for mounting parts that are continuous in the length direction of the support column at both corners (20, 21) of the side wall (10) opposite to (9)
The single post type traveling crane according to claim 1 or 2, wherein a bracket (32) for supporting the feeder line guide means (31) and the like is attached to the rail groove.