JP2712978B2 - Elevating carriage guide support connection 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.
That is, an elevating / lowering device used for lifting / lowering a transport means such as a transport train from one side to the other of a traveling path of a different level, or for loading / unloading an object to be transported. The present invention relates to a connection device for a carriage guide column.

[0002]

2. Description of the Related Art An elevator carriage guide column of this type of elevator transport device is formed by connecting a plurality of units each having a unit length integrally formed of aluminum or the like. When the displacement in the circumferential direction occurs, a step is formed in the lift carriage guide rail formed on the support, and the lift carriage cannot be guided smoothly and safely. However, it has not been conceived that a conventional connection device of this kind that can completely prevent the above-mentioned inconvenience from occurring.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are indicated by reference numerals in the embodiments described later. The connection device of the lifting carriage guide column of the present invention is provided with at least two through holes 24 penetrating in the length direction on a unit length column 31 provided with the lifting carriage guiding rail portions 17 to 19, A counterbore recess 33 is formed at least on the periphery of the opening of the through-hole 24 on the column connection end side,
A core that can fit tightly into the through-hole 24 with a flange 34 that just fits into the space formed by the counterbore recess 33 between the butting end faces of the two struts 31 butted in the length direction. The centering pin 32 is formed at a substantially central position in the length direction of the centering pin 32, and the centering pin 32 is fitted into the space between the through holes 24 of the two columns 31.
Are characterized in that the butting ends of the two support columns 31 are connected via a plurality of circumferential contact plates 35 applied across the side surfaces of the two columns 31.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. The ascending / descending transporting device shown in FIG. 1 comprises transport guide rails 1a and 1b which are installed at a high level and a low level. Used to transfer a transfer train (not shown) between the transfer guide rail 1c and the transfer guide rail 1c.
The books 3 and 4, one lifting carriage 5 that can move up and down along the both supports 3 and 4, a counterweight 6 that can move up and down between the two supports 3 and 4, and the lifting carriage 5 and the counterweight 6 and a lifting drive means 7 for raising and lowering in conjunction with each other in opposite directions.

The lifting carriage 5 has a frame 8 long in a direction parallel to the transport guide rails 1a and 1b.
Is mounted via an arm 9 projecting from the lifting carriage 5 in a cantilever manner, and a lower level of the guide rails 1a, 1b is provided below the frame 9 when the lifting carriage 5 is at the upper limit position. And the lowering carriage 5 is lowered to a predetermined level, so that the guide rail 10 connected to the lower-level transport guide rail 1c is attached. Ascending and descending can be carried up and down to a predetermined transfer level.

The elevating drive means 7 rotates an elevating drive chain 11 for suspending the elevating carriage 5 (specifically, the frame 8) and the counterweight 6 in a fishing bottle manner, and rotates a driving tooth wheel meshing with the chain 11. And a motor 12 with a speed reducer for driving the motor. The pillar 3,
4, a support 13 on which the motor 12 is mounted and which supports the driving tooth wheel is mounted and fixed. Further, a chain guide frame 14 extends from the support 13 to a position directly above the frame 8. Are protruded in a cantilever shape. 15a,
Numeral 15b is a beam material erected on the ceiling side to support the transport guide rails 1a and 1b, and when the lifting carriage 5 is raised to a lifting limit position, both ends in the length direction of the frame 8 Abuts on stopper portions 16a, 16b provided at the tips of the beam members 15a, 15b upward.

The two pillars 3 and 4 have the same structure of an aluminum integrally molded product, and as shown in FIG. 2, small width groove rail portions 17 and 18 are provided at central positions at both ends in the long side direction.
However, at the center position of one end in the short side direction, a large groove rail portion 19 is provided.
And a protruding rail 2 at the center of the other end in the short side direction.
0 are formed continuously in the length direction, and a pair of left and right member mounting recesses continuous in the length direction are provided at a total of six places on both the left and right sides at both ends in the long side direction and both ends in the short side direction. Groove 2
1a to 21f are formed by ridges 22 each having an L-shaped cross section and integrally protruding from the pillar surface. In addition, a pair of left and right member mounting concave grooves 21a, 21b at both ends in the long side direction.
Are distributed on the left and right sides of the narrow groove rail portions 17 and 18.

The columns 3 and 4 are formed in a hollow shape for weight reduction and material saving. However, as shown in the drawing, a reinforcing inner wall portion 23 for dividing an internal space into a plurality of sections is integrally formed. Further, two holes adjacent to the inside of both the narrow groove rails 17 and 18 on the central axis in the long side direction are provided with through holes 24 which are continuous in the length direction and have a perfect circular cross section and penetrate in the column length direction.
Are formed.

As shown in FIG. 3, two pillars 3 and 4 constructed as described above are erected in parallel so that the protruding rails 20 face each other on the inner side. Guide rollers 25, 26 for positioning in the front-rear direction, which are respectively fitted to the large-width concave groove rail portions 19 located outside the both columns 3, 4, and small-width concave grooves located on the front side of the both columns 3, 4. Rails 17, 18 (Because there is no top and bottom on the support, the same narrow groove rail 17 or 1
8 can also be used), and guide rollers 27 and 28 for positioning in the left and right directions, which are respectively fitted, are supported by shafts. Further, the counter weights 6 disposed between the two columns 3 and 4 are provided with the two columns. Elevating grooved guide rollers 29 fitted to the protruding rail portions 20 located inside the
30 is supported. Of course, each of these guide rollers 2
5 to 30 are a lifting carriage 5 and a counter weight 6
So that the vertical carriage 5 and the counterweight 6 can be held in a vertical position.
It is pivotally supported at the place. As for the counterweight 6, if there is no particular problem, the guide roller 29 with the groove for ascending and descending only at one of the upper and lower ends or only at the intermediate height.
30 may be supported.

Each of the columns 3 and 4 is constituted by connecting a plurality of columns having a unit length in the length direction. FIG. 4 to FIG. 6 show a connection structure between the columns of each unit length in this case. Explaining based on this, reference numeral 31 denotes a unit length support having a sectional structure as described with reference to FIG. 2, and the two through holes 24 in the unit length support 31 correspond to the unit length support 31. At the abutting ends, they face each other.
Are fitted.

As shown in FIG. 6, the unit length support 31
In the periphery of the opening end of each through hole 24 opening at both ends of
An oblique counterbore recess 33 is formed, and when two unit length columns 31 are abutted against each other, a size that just fits into a space formed by the counterbore recess 33 between the end surfaces of the columns. The flange 34 having a substantially isosceles triangular cross section,
The centering pin 32 is integrally protruded from the center in the length direction. The centering pin 32 has a diameter that allows the centering pin 32 to be tightly fitted into the through hole 24.

Thus, both ends of the centering pin 32 are press-fitted into the respective through holes 24 opening at the connection end sides of the two unit length columns 31 connected to each other. By striking and pressurizing the columns 31 to approach each other in the axial direction, the flange portions 34 of the centering pins 32 are pressed.
Are the counterbore recesses 3 at the end faces of both unit length columns 31
3 and stops.
Does not fit deeper into the through-holes 24 of any of the unit length columns 31, and eventually is inserted into each of the through-holes 24 of the unit length columns 31 by an equal amount. Become.

As described above, the two unit length posts 3 positioned between the connection ends by the two centering pins 32.
Next, as shown in FIG. 4 and FIG. 5, 1 is connected via a plurality of circumferentially applied backing plates 35 applied across the side surfaces of both unit length columns 31. More specifically, a tap plate 36 is inserted between the connection ends of the two unit-length support columns 31 into the concave grooves 21a to 21f for connecting the members in the connected state. The plate 35 is fastened by a plurality of bolts 37 in the column length direction. Thus, the two unit length supports 3
Each of the contact plates 35 and the tap plate 36 sandwiches and fixes the L-shaped ridge 22 between the connection ends of one.
Both unit length columns 31 are firmly connected.

The through holes 24 of the columns 3 and 4 and the concave grooves 21a to 21f for attaching members are also used when the columns 3 and 4 are installed on the substrate 2. . That is, as shown in FIG.
A supporting column 38 is fixed to the lower end of the supporting column 38. The supporting plate 38 also has through-holes 39 (of the same diameter) at two locations that match the two through-holes 24 opened on the lower end surfaces of the columns 3 and 4. A counterbore recess identical to the counterbore recess 33 is formed in the peripheral edge of the upper opening end.
Two through holes 39 on the side and two through holes 2 in each of the columns 3 and 4
4, the centering pins 32 are tightly fitted, and the relative positions of the support plates 38 and the columns 3, 4 are regulated. In such a state, the lower end peripheral portions of the columns 3 and 4 and the support plate 38 are fixed by the angle members 40 arranged one for each side of the column. Each angle material 40 is
The horizontal plate portion is fixed to the support plate 38 by bolt nuts 41, and the vertical plate portion is provided with bolts 43 on the tap plate 42 fitted in the member mounting grooves 21a to 21f of the columns 3 and 4. Is concluded.

The column support plate 38 is supported on the substrate 2 at four corners by height adjusting bolts and nuts 44. Each of the height adjusting bolts and nuts 44 is
A bolt 46 which is screwed to a fixing nut 45 fixed to the shaft and rises vertically and penetrates a through hole provided in the column support plate 38, and is screwed to the bolt 46 to move the column support plate 38 up and down. And a plurality of nuts 47 to be clamped and fixed. The vertical height of the columns 3, 4 can be finely adjusted by adjusting the support plate clamping height by the nuts 47.

The cross-sectional structure of the columns 3 and 4, the method of guiding the lifting carriage 5 up and down, the use of the lifting carriage 5, or the method of extending the chain 11 for driving the lifting carriage 5 and the counterweight 6 to move in conjunction with each other, and the like. The driving method and the like are not limited to the above embodiment.

[0017]

According to the present invention as described above,
When pillars of unit length are connected to each other by abutting each other, the centering pins are closely fitted over at least two through holes provided in both pillars, so that there is no deviation in the twisting direction between both pillars. In this state, since both columns are connected to each other via a plurality of circumferential plates, there is no possibility that a step is generated between the lifting carriage guide rail portions provided on each connected column,
The lifting carriage can be guided smoothly and safely.

Moreover, the centering pin can be fitted into the through-holes of both unit-length supports by an equal amount by the function of the flange provided at the center of the centering pin. Therefore, it is not necessary to cause such an inconvenience that the pin becomes unduly shallow or the entire pin enters into the other through-hole, so that the desired function can always be exhibited.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a lifting and lowering transport device.

FIG. 2 is a perspective view illustrating a cross-sectional structure of a column.

FIG. 3 is a cross-sectional plan view illustrating a relationship between a support, a lifting carriage, and a counterweight.

FIG. 4 is a vertical sectional front view showing a connection portion structure of a unit length support.

FIG. 5 is a cross-sectional plan view of the connection portion.

FIG. 6 is an exploded partial longitudinal perspective view of the connection portion.

FIG. 7 is a vertical cross-sectional front view illustrating a structure for mounting a support on a substrate.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 2 board 3 support 4 support 5 elevating carriage 6 counterweight 7 elevating drive means 11 elevating drive chain 21 a to 21 f concave groove for member attachment 24 through hole 31 unit length support 32 centering pin 33 counterbore recess 34 centering Pin flange 35 Backing plate 36 Tap plate 37 Bolt 38 Post support plate 40 Angle material for fixing post 42 Tap plate 44 Bolt and nut for height adjustment

Claims (1)

(57) [Claims] At least two through-holes penetrating in the length direction are provided in a column of unit length provided with a rail portion for guiding a lifting carriage, and the periphery of the opening at least on the column connection end side of the through-hole. A counterbore recess is formed in the through hole, and a flange portion that fits exactly in the space formed by the counterbore recess between the butting end surfaces of the two struts butted in the length direction is formed in the through hole. The centering pin is formed at a substantially central position in the length direction of the centering pin which can be fitted tightly, and in a state where the centering pin is fitted over the through holes of the both columns, the butted ends of the two columns are brought together. And a connecting device for a lifting carriage guiding column, which is connected via a plurality of circumferentially applied supporting plates applied between the side surfaces of the both columns.