JP2682316B2 - Pillar for lifting transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting / lowering device generally called a drop lifter or a table lifter.
In other words, for ascending and descending carriage guidance of an elevating transport device used for lifting and lowering a transport means such as a transport train from one side of the travel path of different levels up and down to the other, and for loading and unloading articles to be transported. It is about a support.

[0002]

2. Description of the Related Art There are two types of lifting / lowering devices, one of which is mainly used for lifting / lowering a small and lightweight object to be transported, and the other of a large / heavy object. And two parallel support columns used for lifting and lowering. Of course, there is also known a larger lifting / lowering transport device having two sets of two parallel columns arranged side by side.

[0003] In any case, the conventional lifting / lowering transport device is composed of a lifting / lowering guide guide column used for a single-post type and a lifting / lowering carriage guide column used for a two-column type. Since the cross-sectional shape is different, and it is necessary to prepare a dedicated support for each type, any type has a disadvantage that the equipment cost is high.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are shown by the reference numerals of the embodiments described later. The column for a lifting / conveying device of the present invention is a column having a substantially rectangular cross section, and a large-width groove rail portion 4 is provided on one side thereof, and two sides adjacent to the left and right sides of the one side are provided. It is characterized in that the narrow groove groove rail portions 2 and 3 and the protruding rail portion 5 on the remaining one side are formed continuously in the length direction.

Further, in the structure of the present invention according to claim 2, it is a pillar having a substantially rectangular cross section, and the narrow groove groove rail portions 2 and 3 are provided on one of a pair of short side portions thereof. The wide groove rail portion 4 is formed on the long side portion, and the protruding rail portion 5 is formed on the other long side portion continuously in the length direction.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, a lifting carriage guide column 1 according to the present invention has a cross-section formed mainly of aluminum. Is a substantially rectangular support,
At the center of the pair of short sides on the left and right, a narrow groove rail section 2,
3 has a large-width groove rail part 4 at the center position of one long side part.
But the protruding rail 5 is located at the center of the remaining long side.
Are formed continuously in the lengthwise direction, and further, a pair of left and right member mounting grooves 6, 7 continuous in the lengthwise direction are formed in the pair of short side portions to form the narrow groove groove rail portion 2. , 3 are separately formed on the left and right sides, and the pair of long sides are continuous in the longitudinal direction on the left and right sides of the large-width groove groove rail part 4 and on the left and right sides of the protruding rail part 5, respectively. A pair of left and right member mounting grooves 8, 9 and 10, 11 are formed. All of these member mounting concave grooves 6 to 11 are projecting ridges 6a to 11a having an L-shaped cross section that are integrally provided so as to project from the surface of the column.
Is formed. These member mounting concave grooves 6 to 1
1 is used to attach various control parts to the support 1, to support the safety enclosure on the support, to erect the support on the base, or to attach the upper frame to the upper end of the support 1. You can

The pillar 1 is formed in a hollow shape for the purpose of weight reduction and material saving, but as shown in the drawing, a reinforcing inner wall portion 12 that divides the internal space into a plurality of parts is integrally formed.
Furthermore, on the central axis in the long side direction, both narrow groove rail portions 2,
At a position adjacent to the inside of 3, there is formed a through hole 13 having a true circular cross section that is continuous in the length direction. This through hole 13
Is a centering pin between the struts when connecting the unit-length struts 1 in the longitudinal direction, and for centering when the struts are erected with respect to the base. It is used when you make it.

The column 1 constructed as described above can be used for the single-column type lifting / lowering conveying device 14 shown in FIG. 2 and the two-column parallel column type lifting / lowering conveying device 15 shown in FIG. . The single-pillar type elevating / lowering transfer device 14 shown in FIG. 2 is a self-propelled transfer train 17 guided by transfer guide rails 16a and 16b installed at a predetermined height above the floor.
Is for elevating and lowering for loading and unloading of the transported object 18, and one of the pillars 1 erected on a box-shaped base 19 installed on the floor, and the pillars 1 along the pillar 1. It is composed of a lift carriage 20 that can be lifted and lowered, and a lift drive means 21.

An arm 22 is projectingly provided in a cantilever manner on the elevating carriage 20, and the carrying guide rails 16a, 16b are connected to the lower end of the arm 22 when the elevating carriage 20 is at the upper limit position. Guide rail 2
3, the transport train 17 transferred to the guide rail 23 can be lowered to a predetermined loading / unloading level by lowering the raising / lowering carriage 20.

The elevating and lowering drive means 21 has a circulation type drive chain 24, both ends of which are connected to the elevating and lowering carriage 20, and a forward and reverse direction of the chain 24 via a drive tooth wheel pivotally supported in the box-shaped base 19. It is composed of a motor 25 with a speed reducer that is rotationally driven in an arbitrary direction.

In this single-pillar type lifting / lowering conveying device 14, as shown in FIG. 4A, the pillar 1 is erected upright with the large-width concave groove rail portion 4 on the front side, and in the lifting / lowering carriage 20, Longitudinal groove guide rails 26 and 27, which are respectively fitted to the narrow groove rail portions 2 and 3 located on the left and right sides of the column 1, and the large groove rail portion 4 of the column 1.
The left and right side surfaces 4a and 4b are axially supported by left and right direction positioning guide rollers 28 and 29, respectively. Of course, each of the guide rollers 26 to 29 is pivotally supported at at least two upper and lower ends of the lift carriage 20 so that the lift carriage 20 can be held in a vertical posture.

Similarly to the single-column type lifting / lowering transfer device 14 shown in FIG. 3, the two-column supporting type lifting / lowering transfer device 15 also has transfer guide rails 30a, 30b installed at a predetermined height above the floor. A train for transportation (not shown), which is self-propelled by being guided by the operator, is lifted up and down for loading and unloading the transported objects, and is installed upright on a base 31 installed on the floor surface. Of the pillar 1, a lift carriage 32 that can move up and down along the pillars 1, a counterweight 33 that can move up and down between the pillars 1, and the lift carriage 32.
And a counterweight 33 and a lifting drive means 34 for moving the counterweight 33 up and down in the opposite directions.

An arm 35 is projectingly provided in a cantilever manner on the elevating carriage 32, and the carrying guide rails 30a, 30b are connected to the lower side of the tip of the arm 35 when the elevating carriage 32 is at the upper limit position. Guide rail 3
6 is attached, and the transport train that has been transferred to the guide rail 36 can be lowered to a predetermined loading / unloading level by lowering the raising / lowering carriage 32.

The elevating and lowering drive means 34 is an endless circulation drive chain 37a and 37b for connecting the elevating and lowering carriage 32 and the counterweight 33 so as to elevate and lower in opposite directions, and a shaft on the base 31. It is composed of a motor 38 with a speed reducer for rotating and driving the chains 37a, 37b in forward and backward arbitrary directions via a supported drive tooth wheel.

This two-column parallel column type lifting / conveying device 1
In FIG. 5, as shown in FIG. 4B, two of the columns 1 are erected in parallel so that the projecting rail portions 5 face each other on the inner side, and the lifting carriage 32 has a large column located outside of both columns 1. The front and rear direction positioning guide rollers 39 and 40 respectively fitted to the narrow groove rail portion 4 and the small groove groove rail portions 2 and 3 located on the front side of the both columns 1 (because the column 1 has no top and bottom. , The same narrow groove rail portion 2 or 3 can also be used), and the left and right direction positioning guide rollers 41 and 42, which are respectively fitted, are pivotally supported, and further, the guide rollers 41 and 42 are arranged between the both columns 1. On the counterweight 33, guide rollers 43 and 44 with a groove for ascending / descending which are fitted respectively to the protruding rail portions 5 located inside the columns 1 are pivotally supported. Of course, each of the guide rollers 39 to 44 is pivotally supported at at least two upper and lower ends of the lifting carriage 32 and the counterweight 33 so that the lifting carriage 32 and the counterweight 33 can be held in a vertical posture. With respect to the counterweight 33, the guide rollers 43 and 44 with the groove for elevation may be pivotally supported at either of the upper and lower ends or only at the intermediate height unless there is a particular problem.

The guide rails 2 attached to the lifting carriages 20 and 33 of the lifting and transporting devices 14 and 15, respectively.
3, 36 can be used to transfer a transportation train or the like from one of the high-level transportation guide rail and the low-level transportation guide rail to the other, and these guide rails 23, 36 can be used. By using a fork or hanger that supports the transported object instead of the above, it can also be used for loading and unloading the transported object on a transport train, or for transferring the transported object between transport devices of different levels. You can do it.

Further, in the two parallel column type lifting / lowering conveying device 15 shown in FIG. 3, the upper chain 37 for hanging the lifting / lowering carriage 32 and the counterweight 33 in a fishing bottle manner.
It is also possible to use only a and drive the chain 37a by a motor with a speed reducer on a base installed between the upper ends of the columns 1. Further, the two parallel column type lifting / lowering transporting devices 15 are further arranged in parallel, and two lifting / lowering carriages 32 support one guide rail or the transported object supporting means, so that a large large heavy object It can also be used as an elevator transport device. Of course, in this case, it is necessary to provide an elevating and lowering drive means capable of elevating and lowering the both elevating carriages 32 in synchronization with each other.

In the above embodiment, the counterweight 33
The guide rollers 43 and 44 with the groove for raising and lowering are pivotally supported on the
A set of two guide roller units that sandwich one protruding rail portion 5 from both sides may be used.

[0019]

As described above, the supporting column for the lifting / conveying device of the present invention is mainly composed of a supporting column of a one-column type lifting / conveying device mainly used for vertically moving a small and lightweight object. It can be properly used as a column of a two-column parallel column type lifting / conveying device used for vertically moving a large heavy object.

In addition, when used as a pillar of any type of lifting and conveying apparatus, of the narrow groove groove rail portions provided on the pair of left and right side portions of the pillar and the remaining pair of side portions, Utilizing the large concave groove rail part provided on one side,
In the elevating carriage, a front-rear direction positioning guide roller and a left-right direction positioning guide roller are pivotally supported to form a left-right pair, and the elevating carriage can be stably guided up and down. When used as a column of a parallel column type lifting / conveying device,
By using the protruding rail portion provided on the side portion, it is possible to stably guide the counterweight to be moved up and down between both columns. Moreover, since the rail portion used to guide the up and down movement of the counterweight has a protruding shape, it is possible to prevent the strength of the support column from being lowered.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cross-sectional shape of a column.

FIG. 2 is a perspective view showing an example of a single-pillar type lift transport device.

FIG. 3 is a perspective view showing an example of a two-column parallel column type lifting / conveying device.

FIG. 4A is a cross-sectional plan view showing the relationship between the support pillar and the lift carriage of the single-support type lift conveyor.
The figure is a cross-sectional plan view showing the relationship between the columns and the elevator carriage of the two parallel column type elevator conveyors.

[Explanation of symbols]

 1 Support 2 Small-width groove rail part 3 Small-width groove rail part 4 Large-width groove rail part 5 Protruding rail part 14 1-column type lifting / conveying device 15 2 parallel-column type lifting / conveying device 20 Lifting carriage 21 Elevating drive means 26 Front-rear positioning guide roller 27 Front-rear positioning guide roller 28 Left-right positioning guide roller 29 Left-right positioning guide roller 32 Elevating carriage 33 Counterweight 34 Elevating drive means 39 Front-rear positioning guide roller 40 Front-rear Directional positioning guide roller 41 Horizontal positioning guide roller 42 Horizontal positioning guide roller 43 Vertical guide groove roller 44 Vertical guide groove roller

Claims (2)

(57) [Claims] 1. A pillar having a substantially rectangular cross section, one side of which
A large grooved rail part adjacent to the left and right sides of the 1 side
There is a narrow groove rail part on the 2 side, and the remaining 1 side
The protruding rails are formed continuously in the length direction.
Column for lifting and lowering transport device. 2. A pillar having a substantially rectangular cross section, a pair of which is a pillar.
The narrow groove rail part on the short side of the
The large-width concave groove rail part and the above-mentioned protrusion on the other long side part
A rail part that is formed continuously in the longitudinal direction.
The support column for a lifting / conveying device according to claim 1.