JP2008074546A - Track for transfer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily lay a rail for a transfer device 30, or a track without using so-called "sleepers" at all and provide the track capable of easily performing adjustment work of the horizontal level. <P>SOLUTION: The track 10 for the transfer device 30 performing carrying in/out of workpieces with respect to a shelf comprises long base materials 11 fixed on the floor face, rail bases 12 arranged on the long base materials 11 so as to enable the height adjustment in longitudinal both end parts of the long base materials 11, and the rail 13 arranged on the rail bases 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a track for a transfer device for taking in and out a work shelf.

  For example, the transfer device 30 as shown in FIG. 1 has a transfer device 31, and a fork 32 included in the transfer device 31 is extended to the shelf side to take in and out the work shelf. Is. In recent years, the shelf itself has been increased in size and capable of storing a large amount, so that a large amount of products and parts can be stored, and this type of transfer device 30 has become a so-called “automatic warehouse” in which the inside moves. .

  For this type of transfer device 30, if the entire position is correct with respect to the floor surface 20, that is, if the wheel 33 of the transfer device 30 is not in the horizontal position, the fork 32 that has been extended to the shelf side. There is a high possibility that the tip of the fork will collide with the shelf, products or parts on the shelf, and the position of the fork 32 with respect to the shelf cannot be accurately calculated.

  Therefore, as shown in FIG. 1, this type of transfer device 30 has been adapted to move on a rail laid on the floor surface 20, but this rail is on the floor surface 20. On the other hand, it must be laid in a completely horizontal state.

The applicant has also proposed, for example, in Patent Document 1 as a rail for this type of transfer device 30.
Japanese Utility Model Publication No. 6-14110

  The technique proposed in Patent Document 1 is “sleeper of guide rail of stacker crane of automatic warehouse”, which is made for the purpose of “absorbing vibration accompanying travel of stacker crane”.

  Further, as shown in FIG. 7, the “sleeper of a guide rail of a stacker crane of an automatic warehouse” proposed in Patent Document 1 is made up of “a metal board on which a guide rail is placed, and a lower surface of this board. A guide rail sleeper of a stacker crane of an automatic warehouse having an elastic plate made of synthetic resin or the like that is stacked on top of each other, and “the elastic plate 19 absorbs vibration caused by the travel of the stacker crane 11”. Therefore, chatter vibration and noise associated with traveling of the stacker crane 11 can be prevented. ”

  However, in the “sleeper” of Patent Document 1, in order to maintain or maintain the horizontal state of the rail, the position adjustment work must be performed for all the “sleepers” under the rail. It has become a thing. This is because the horizontal level on the floor surface 20 varies depending on the place and the contractor, and according to the actual examination by the present inventor, an error of about ± 25 mm occurs in some cases.

  Therefore, the present inventors have made various studies on how to make it easy to install rails on the assumption that the horizontal level on the floor 20 has an error of about ± 25 mm. As a result, the present invention has been completed.

  That is, the object of the present invention is that a so-called “sleeper” is not used at all, but the rail for the transfer device 30, that is, the track can be easily laid, and the horizontal level adjustment work is also easily performed. It is to provide a trajectory that can.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“A trajectory 10 for a transfer device 30 for taking in and out of a work shelf,
A long base member 11 fixed to the track surface 20 on the track 10, a rail base 12 disposed on the long base member 11 so as to be adjustable in height at least at both ends in the longitudinal direction, and the rail Track 10 for transfer device 30 characterized by comprising rails 13 arranged on base 12 "
It is.

  That is, as shown in FIGS. 3 to 6, the track 10 according to the first aspect includes a long base material 11 fixed on the floor surface 20 and a rail base disposed on the long base material 11. 12 and a rail 13 disposed on the rail base 12, and so-called "sleepers" are not used at all. Of course, as shown in FIGS. 1 and 2, the transfer device 30 for taking in and out the work shelf moves on the track 10.

  In order to lay the track 10 on the floor surface 20 so that the rail 13 is finally in a horizontal state, first, the long base material 11 is fixed on the floor surface 20. The horizontal level of the floor 20 need not be perfect. The reason for this will be described in order below. In the present invention, the horizontal level on the floor 20 is assumed to have an error of about ± 25 mm.

  In constructing the long base material 11 on the floor surface 20, as described above, the horizontal state of the floor surface 20 is not a problem, and the long base material 11 is simply fixed on the floor surface 20 with fixing bolts 11b. It is fixed by. In the long base material 11 of the best mode to be described later, as shown in FIG. 3 (a), the mounting flange 11a is integrated in some places, so that the long base material 11 is fixed to the floor surface 20. The fixing flange 11a is fixed on the floor surface 20 with fixing bolts 11b.

  Now, on the long base material 11 fixed on the floor surface 20 as described above, as shown in FIGS. 4 and 5, the rail base 12 is adjusted in height by jack bolts 15, that is, the horizontal state is adjusted. Fix it while adjusting. As shown in FIGS. 4 and 5, the rail base 12 includes a rectangular main body portion 12a having a hollow 12d inside, and two central flange portions 12b protruding at right angles to the left and right of the main body portion 12a. It is constituted by.

  The rail base 12 is formed by screwing jack bolts 15 inserted through the respective central flange portions 12b onto the long base material 11 and adjusting the position of the double nut of the jack bolt 15 to thereby make the long base material. 11 and the overall horizontal state are adjusted. Specifically, the position of the double nut in each jack bolt 15 located at both ends in the longitudinal direction is adjusted while checking the horizontal state of the upper surface of the main body 12a. As a result, even when the floor surface 20 is neither flat nor horizontal, the main body 12a, that is, the upper surface of the rail base 12 can be completely horizontal without “sleepers” by adjusting the jack bolts 15 up and down. It is adjusted to. In each jack bolt 15 located at the intermediate portion, it is only necessary to adjust the rail base 12 so that the rail base 12 can be supported, in other words, the lower nut abuts against the lower surface of the central flange portion 12b.

  When the rail base 12 becomes horizontal, the rail 13 is laid on the rail base 12. However, the upper surface of the rail 13 becomes horizontal because the upper surface of the rail base 12 is horizontal. Needless to say. Note that the rail 13 is fixed to the rail base 12 by adopting, for example, a rail clamp 16 and a bracket 18 as shown in FIGS.

  As shown in FIGS. 4 and 5, the rail clamp 16 has one end locked in the clamp groove 13a formed on the side surface of the rail 13 and the other end fixed to the bracket 18 side. The bolt 17 is fastened to the bracket 18 together. Also, as shown in FIG. 6, the bracket 18 has an end surface “inverted U shape”, and is fixed to the rail base 12 by means such as welding, and the fastening bolt 17 is inserted therethrough. And an opening into which the nut is inserted.

  Therefore, the track 10 of claim 1 can be easily laid without using a so-called “sleeper” at all, and can easily adjust the horizontal level.

Moreover, in order to solve the said subject, the means which invention based on Claim 2 took about the track | orbit 10 for the transfer apparatuses 30 of the said Claim 1,
“Vibration-proof material 14 is interposed between rail base 12 and rail 13”
It is.

  That is, in the track 10 of the second aspect, as shown in FIGS. 4 and 5, the vibration isolator 14 is interposed between the rail base 12 and the rail 13. It is effective.

  If the vibration isolator 14 is interposed between the rail base 12 and the rail 13, even if the transfer device 30 travels on the track 10, the vibration is absorbed by the vibration isolator 14 and transferred. The apparatus 30 and thus the work to be conveyed are protected, and the generation of noise is suppressed. Further, the presence of the vibration isolator 14 makes it possible to use the rail clamp 16 and the bracket 18 to fix the rail 13 to the rail base 12 as in the best mode described later. Since the fastening with the fastening bolts 17 can be performed elastically, the occurrence of “smearing” when the transfer device 30 passes is also suppressed.

  Therefore, the track 10 according to the second aspect exhibits the same function as that of the first aspect, can perform the traveling of the transfer device 30 in a stable state, and can suppress the generation of noise.

Further, in order to solve the above-mentioned problem, the means taken by the invention according to claim 3 is that the track 10 for the transfer device 30 according to claim 1 or 2,
“The joint portion 12c of the rail base 12 and the joint portion 13c of the rail 13 are performed at different positions on the track 10”.
It is.

  That is, in the track 10 according to the third aspect, when the rail bases 12 and the rails 13 are connected in the longitudinal direction to be long, the joint of the rail bases 12 indicated by the dotted line in FIG. The portion 12c and the joint portion 13c of the rail 13 indicated by the solid line in FIG. 3A are performed at different positions on the track 10. And about the elongate base material 11, it did not need to make such a limitation.

  If the joint portion 12c of the rail base 12 and the joint portion 13c of the rail 13 are at the same position, it is easy for subtle deviations to occur at each boundary portion. This is because the rail base 12 and the rail 13 are not connected in the joint portions 12c and 13c, and thus a positional shift that causes noise when the transfer device 30 passes is generated at this boundary portion. This is because it is easy to do.

  As a result of the joint portion 12c of the rail base 12 and the joint portion 13c of the rail 13 being performed at different positions on the track 10, the joint portion 12c of the rail base 12 does not have the joint portion 13c thereon. The presence of the rail 13 results in a smooth connection with no displacement. Similarly, the joint portion 13c of the rail 13 is smoothly connected without a displacement due to the presence of the rail base 12 without the joint portion 12c below the joint portion 13c.

  Therefore, the track 10 of the third aspect exhibits the same function as that of the first or second aspect, and is smooth at the joint portions 12c and 13c.

As described above, in the present invention,
“A trajectory 10 for a transfer device 30 for taking in and out of a work shelf,
A long base member 11 fixed to the track surface 20 on the track 10, a rail base 12 disposed on the long base member 11 so as to be adjustable in height at least at both ends in the longitudinal direction, and the rail What was comprised by the rail 13 arrange | positioned on the base 12 "
Therefore, it is possible to provide a track 10 that can be easily laid without using a so-called “sleeper” at all, and can easily adjust the horizontal level.

  Next, the invention according to each claim configured as described above will be described with respect to the track 10 which is the best mode shown in the drawings. The track 10 according to the best mode is the whole of the invention according to each claim. Is included.

  In FIG. 1, a track 10 according to the present invention is laid on a concrete floor 20 formed in an automatic warehouse, and a transfer device 30 is placed on the track 10 to load and unload a work shelf. The perspective view of the state which mounted | wore is shown. The transfer device 30 includes a transfer device 31 that transfers the workpiece to the shelf in the middle, and the fork 32 of the transfer device 31 is moved to a shelf (not shown) by the operation of the transfer device 30. It will come in and out. Of course, as shown in FIGS. 1 and 2, the transfer device 30 has a wheel 33 for traveling on the track 10, and the lower side of the wheel 33 is shown in FIG. As shown, the track 10 is laid.

  As shown in FIGS. 3 to 6, the track 10 in the best mode includes a long base material 11 fixed on the floor surface 20, and a rail base 12 disposed on the long base material 11. The rail 13 is arranged on the rail base 12, and so-called "sleepers" are not used at all.

  The long base material 11 is basically formed in a long plate shape with a metal material, and a predetermined interval is provided on the side surface thereof as shown in FIGS. A plurality of mounting flanges 11a are integrally formed. Each of these mounting flanges 11a is used when the long base material 11 is fixed on the floor surface 20, and as shown in FIGS. 4 and 5, the bolt insertion formed therein is inserted. The fixing bolt 11b passed through the hole is fixed to the floor surface 20. Note that the joint portion 12c formed when the long base material 11 is connected is at the position indicated by the dotted line in FIG.

  As shown in FIGS. 4 and 5, the rail base 12 is composed of a main body portion 12a having a square section with a cavity 12d and two central flange portions 12b projecting to the left and right of the main body portion 12a. The whole is made of metal. Of course, the rail base 12 has a cross-sectional shape that is subject to up and down, and has no front and back surfaces, and the upper surface or the lower surface of the main body 12a forms a complete plane. is there.

  As shown in FIGS. 4 and 5, the rail 13 is formed with clamp grooves 13 a for inserting the tips of rail clamps 16, which will be described later, in the lower portions on the left and right sides, and connection portions, which will be described later, on the upper portions on the left and right sides. A connecting groove 13b for connecting the rail 13 by inserting the material 19 is formed. The joint portion 13c that is formed when the rail 13 is connected is located at the position indicated by the solid line in FIG. 3A. The joint portion 13c is connected to the joint portion 12c on the rail base 12 side described above. Are set to be in different positions.

  As shown in FIG. 3B, the rail 13 is connected by using a bolt 19 as shown in FIG. 3A and FIG. Is fixed to each rail 13 side. Of course, the connecting member 19 is accommodated in the connecting groove 13b so that the intermediate portion thereof is positioned at the joint portion 13c.

  In the track 10 of the best mode, as shown in FIG. 4 and the like, the vibration isolator 14 is interposed between the rail base 12 and the rail 13 described above. In addition to exhibiting a buffering action between the rails 13 and the rail 13, vibrations due to the passage of the transfer device 30 are also absorbed to some extent.

  Now, the rail base 12 is attached to the long base material 11 attached on the floor surface 20, and the jack bolt 15 shown in FIG. 4 is used at that time. is there. The jack bolt 15 is inserted into each central flange portion 12b of the rail base 12 from above, and then the lower end of the jack bolt 15 is screwed into a screw hole formed in the long base material 11, and the screw position of the upper and lower double nuts is screwed. By adjusting the above, the connection of the rail base 12 to the long base material 11 and the height adjustment of the rail base 12 to the long base material 11 are performed.

  The rail clamp 16 is fixed to the rail base 12 on the rail base 12 by engaging the end of the rail clamp 16 in a clamp groove 13 a formed in the rail 13 and fixing the whole to the rail base 12 side by fastening bolts 17. This is what you actually do. In the best mode, the fastening bolt 17 is inserted through a bracket 18 whose lower portion is fixed to the rail base 12 side, and is engaged with the bracket 18 as shown in FIGS. By fastening the lower nut, the rail 13 is fixed to the rail base 12.

It is the perspective view which showed a mode that the transfer apparatus drive | works on the track | orbit concerning this invention. FIG. 2 is an enlarged longitudinal sectional view of each track viewed from a line 1-1 in FIG. 1. The same track | orbit is shown, (a) is the partial top view, (b) is a partial side view. It is an expanded sectional view of the orbit seen along line 2-2 in (a) of Drawing 3. It is an expanded sectional view of the orbit seen along line 3-3 in Drawing 3 (a). It is the partial side view of the track | orbit which expanded and showed the right part shown to (b) of FIG. It is an expanded sectional view which shows the prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Track | truck 11 Long base material 11a Mounting flange 11b Fixing bolt 12 Rail base 12a Main body part 12b Central flange part 12c Joint part 12d Cavity 13 Rail 13a Clamp groove 13b Connection groove 13c Joint part 14 Anti-vibration material 15 Jack bolt 16 Rail clamp 17 Fastening bolt 18 Bracket 19 Connecting material 20 Floor 30 Transfer device 31 Transfer machine 32 Fork 33 Wheel

Claims (3)

A track for a transfer device for taking in and out of a work shelf,
A long base material fixed on the floor surface, a rail base disposed on the long base material so that the height can be adjusted at least at both ends in the longitudinal direction, and a rail base disposed on the rail base. A track for a transfer device, characterized by comprising a rail.   The track for the transfer device according to claim 1, wherein a vibration isolating material is interposed between the rail base and the rail.   The track for the transfer device according to claim 1 or 2, wherein the joint portion of the rail base and the joint portion of the rail are performed at different positions of the track.

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