JP3435838B2 - Rail suspension support structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension structure for a rail.

[0002]

2. Description of the Related Art Generally, in a factory or the like where a space for installing a transfer device is limited, a traveling rail is suspended and supported on a supporting base material provided on a ceiling so as to extend in a horizontal direction. A ceiling transport vehicle is run along to transport the work.

As shown in FIG. 3, a rail 31 for traveling a ceiling guided vehicle is suspended and supported in parallel with a support base 33 by a rail support 32, and the rail support 32 is provided.
Are provided along the rail 31. The rail support 32 is composed of a pair of upper and lower plates 34 and 35, and a pair of support shafts 36 that connect the plates 34, 35 and are arranged side by side in the width direction of the rail 31.

The upper plate 34 is disposed below the support base 33, and a rod-shaped bracket 37 bent in a U-shape is formed on the support base 33 so as to cover the upper surface and both side surfaces of the support base 33. It is fitted so as to surround it. Then, by attaching both ends of the bracket 37 to the upper plate 34, the upper plate 34 is connected to the support base 33. The lower plate 35 is arranged above the rail 31. A pair of bolts 38 are screwed from the upper side of the lower plate 35 toward the rail 31 on both sides of the lower plate 35 in the width direction of the rail 31, and the lower plate 25 is connected to the rail 31 by the bolts 38.

The support shaft 36 has first and second screw shafts 39 and 40 protruding from the upper plate 34 and the lower plate 35 so as to face each other, and both screw shafts 39 and 40.
And a turnbuckle 41 for connecting.
The first screw shaft 39 is formed as a right-hand screw and the second screw shaft 40 is formed as a left-hand screw. The turnbuckle 41 is formed in a tubular shape extending in the axial direction of both screw shafts 39 and 40, and the first and second screw shafts 39 and 40 are screwed into the upper and lower openings of the turnbuckle 41, respectively. Has been done. Therefore, by rotating the turnbuckles 41 of the support shafts 36 arranged side by side in the same direction,
The distance between the support base 33 and the rail 31 can be changed.

However, since the pair of support shafts 36 are juxtaposed in the width direction of the rail 31, the two turnbuckles 4 are provided.
It is difficult to rotate 1 at the same time, and you must rotate 1 at a time. When the turnbuckle 41 is rotated one by one, if one turnbuckle 41 is rotated too much, the other turnbuckle 41 and both screw shafts 39 and 40 are twisted, and the other turnbuckle 41 can be rotated. Disappear. Therefore, the two turnbuckles 41 must be alternately rotated little by little, and the support base 33
It took a lot of time to adjust the distance between the rail and the rail 31. or,
The rail 31 could only be suspended and supported parallel to the support base 33.

Therefore, it is conceivable to use a single support shaft 36 as in the rail construction structure disclosed in Japanese Utility Model Laid-Open No. 63-126404. That is, the upper plate 34 and the lower plate 35 are connected by a single support shaft 36, and the rail support members 32 are arranged so that the support shaft 36 is aligned along the rail 31. According to this structure, the distance between the support base 33 and the rail 31 can be adjusted with one turnbuckle 41, and the adjustment can be easily performed.

[0008]

However, since the rails 32 of each rail support 32 are arranged so that their respective support shafts 36 are aligned with each other along the rail 31, the rail support 32 is not loaded when a load is applied to the rail 31. 31 becomes loose easily. In particular, when a large load is applied to the rails 31 such as when the ceiling guided vehicle moves along the rails 31, there is a problem that the wobble of the rails 31 becomes large and the ceiling guided vehicles are apt to swing.

The present invention has been made to solve the above problems. A first object of the present invention is to make it easier to adjust the distance between the supporting base and the rail, and to twist the rail with respect to the supporting base. It is an object of the present invention to provide a rail suspension support structure capable of suspending and supporting the rail even at the position, and capable of suspending and supporting the rail without wobbling.

A second object of the present invention is that, in addition to the first object, it is possible to confirm the screwing amounts of the first and second screw shafts into the turnbuckle. It is an object of the present invention to provide a suspension support structure for a rail that can easily adjust the distance.

[0011]

In order to solve the above-mentioned problems, in the invention according to claim 1, the rails are hung on a support base by a plurality of rail supports provided along rails extending in the horizontal direction. In the hanging support structure of a rail to be supported below, the rail support tool includes a support shaft extending in a vertical direction, and the rail support is arranged so that the support shaft is alternately positioned on both sides in the width direction of the rail sandwiching the center of gravity of the rail. Arranged the ingredients.

According to a second aspect of the present invention, in the rail suspension supporting structure according to the first aspect, the first screw shaft connected to the support base and the first screw shaft connected to the rail are provided. On the other hand, a second screw shaft, which is a reverse screw, is arranged coaxially, and a cylindrical turnbuckle extending in the same direction as the screw shafts is arranged between the screw shafts. A first screw shaft and a second screw shaft were respectively screwed into the lower side to form a support shaft.

According to a third aspect of the invention, in the rail support structure according to the second aspect, a through hole is formed in the side wall of the turnbuckle.

[0014]

Therefore, according to the first aspect of the invention, a plurality of rail supporting members for suspending and supporting the horizontally extending rail on the supporting base material are provided along the rail. Each rail support includes a support shaft extending in the vertical direction, and the rail support is arranged such that the support shafts are alternately located on both sides in the width direction of the rail with the center of gravity of the rail interposed therebetween. Then, when a load is applied to the rail, the support shafts located on both sides in the width direction of the rail receive the load, so that the rail can be prevented from wobbling.

According to the second aspect of the invention, in addition to the operation of the first aspect of the invention, when the turnbuckle constituting the support shaft is rotated, the first and second screw shafts are extended or extended with respect to the turnbuckle. It contracts and the distance between the supporting substrate and the rail is adjusted. Further, since the support shafts are not juxtaposed in the rail width direction in each rail support, the turnbuckle can be easily rotated, and the distance between the support base and the rail can be easily adjusted. Further, it becomes possible to suspend and support the rail with respect to the supporting base material.

According to the third aspect of the invention, in addition to the function of the second aspect of the invention, a through hole is formed in the side wall of the turnbuckle, and the turnbuckle of the first and second screw shafts is formed from the through hole. The screw-in amount is confirmed. Therefore, it is possible to confirm from the through hole whether or not both screw shafts are sufficiently screwed into the turnbuckle so as not to come off from the turnbuckle. Further, if the turnbuckle is rotated while confirming the positions of the first and second screw shafts from the through hole, it is easy to set the distance between the supporting base material and the rail to a desired value.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a suspension support structure for a rail of a ceiling type transportation system will be described with reference to FIGS.

As shown in FIG. 1, a supporting base material 2 for suspending the rail 1 extends in the horizontal direction and is connected to a plurality of arms 3 extending from a ceiling beam (not shown). A rail 1 extending in the same direction as the supporting base material 2 is disposed below the supporting base material 2, and a plurality of rail support members 4a to 4d are sequentially arranged on the upper surface of the rail 1 along the extending direction of the rail 1. It is provided. The rail 1 is suspended and supported by the support base material 2 by the rail support members 4a to 4d. or,
A ceiling carrier 5 is hung on the rail 1, and the ceiling carrier 5 runs along the rail 1.

As shown in FIG. 2, the rail support 4a is
It is composed of a pair of upper and lower plates 6 and 7, and a support shaft 8 extending in the vertical direction and connecting both plates 6 and 7. The upper plate 6 is disposed below the supporting base material 2, and a rod-shaped bracket 9 bent and formed in a U-shape is formed on the supporting base material 2 so as to surround the upper surface and both side surfaces of the supporting base material 2. It is fitted. Screws 10 are formed at both ends of the bracket 9, and the screws 10 penetrate the upper plate 6 from the upper side to the lower side. And
The upper plate 6 is connected to the support base 2 by screwing the nut 11 into the screw 10 from the lower side of the upper plate 6.

The lower plate 7 is disposed on the upper side of the rail 1, and a pair of connecting grooves 1a extending in the same direction as the rail 1 and projecting so that the inner walls of the opening face each other are provided on the upper side of the rail 1. Has been formed. The connecting pin 12 is slidably inserted into the connecting groove 1a along the connecting groove 1a, and the connecting pin 12 is engaged with the inner wall of the opening of the connecting groove 1a. A screw 12a is formed at the tip of the connecting pin 12, and the screw 12a projects from the opening of the connecting groove 1a and penetrates the lower plate 7 from bottom to top. The lower plate 7 is connected to the rail 1 by screwing the nut 12b into the screw 12a from the upper side of the lower plate 7.

The support shaft 8 has a first screw shaft 15 protruding from the lower surface of the upper plate 6, a second screw shaft 16 protruding from the upper surface of the lower plate 7, and a turnbuckle connecting both screw shafts 15 and 16. It is composed of 17 and. The first and second screw shafts 15 and 16 project so as to face each other on the same axis, and the axis A of both screw shafts 15 is displaced to the left of the center of gravity G of the rail 1. The first and second screw shafts 15 and 16 are right-handed screws and left-handed screws, respectively. In FIG. 2, the right side is the right side of the rail 1 and the left side is the left side of the rail 1.

A cylindrical turnbuckle 17 extending along the axis A is provided on the axis A between the screw shafts 15 and 16, and fixing nuts 17a are provided on the upper and lower sides of the turnbuckle 17, respectively. Has been done. The first screw shaft 15 is screwed into the upper opening of the turnbuckle 17 and the upper fixing nut 17a. The second screw shaft 16 is screwed into the lower opening of the turnbuckle 17 and the lower fixing nut 17a. In the side wall of the turnbuckle 17, three through holes 18 are formed at equal intervals in the direction in which the axis A extends. The amount of screwing of the first and second screw shafts 15 and 16 into the turnbuckle 17 can be seen from each through hole 18.

Since the rail supporting members 4b to 4d have the same structure as the rail supporting member 4a, the same reference numerals as those of the rail supporting member 4a are given and detailed description thereof will be omitted. Further, the rail support tool 4c is connected to the rail 1 and the support base material 2 in the same manner as the rail support tool 4a, and the rail support tools 4b and 4d are symmetrical with respect to the rail support tools 4a and 4c. 1 and the supporting substrate 2. Therefore, the support shafts 8 of the rail support members 4a to 4d provided along the rail 1 are alternately positioned on both left and right sides of the center of gravity G of the rail. Further, the distance in the left-right direction between the axis A of the support shaft 8 located on the right side of the center of gravity G and the center of gravity G is the left-right direction between the axis A of the support shaft 8 located on the left side of the center of gravity G and the center of gravity G. Is equal to the distance.

Next, the operation of the rail suspension support structure configured as described above will be described. In order to change the distance between the upper plate 6 and the lower plate 7 of the rail support members 4a to 4d, the pair of upper and lower fixing nuts 17a sandwiching the turnbuckle 17 is rotated clockwise around the axis A as viewed from below. Let Then, both fixing nuts 17a move in the direction of separating from each other, and the fixing nut 17a and the turnbuckle 17 separate from each other.

After that, when the turnbuckle 17 is rotated clockwise about the axis A as viewed from below, the first and second screw shafts 15 and 16 move in the direction of approaching along the axis A. Further, when the turnbuckle 17 is rotated counterclockwise, the first and second screw shafts 15 and 16 move in the direction of separating from each other along the axis A. Then, by rotating the turnbuckle 17 clockwise or counterclockwise, the interval between the upper plate 6 and the lower plate 7 is adjusted appropriately, and after the adjustment of the interval is completed, both fixing nuts 17
Rotate a in the counterclockwise direction when viewed from below. Then, both fixing nuts 17a move in a direction in which they approach each other, and both fixing nuts 17 are pressed against the upper surface and the lower surface of the turnbuckle 17, respectively, and the turnbuckle 17 is fixed so as not to rotate.

When changing the distance between the rail 1 and the support base 2, the turnbuckle 17 of each of the rail support members 4a to 4d.
Are sequentially rotated as described above, and the intervals between both plates 6 and 7 are all made the same. From the three through-holes 18 formed in the turnbuckle 17, it is possible to see the screwing amounts of both screw shafts 15 and 16 into the turnbuckle 17.
Therefore, it is possible to confirm from each through hole 18 whether or not both screw shafts 15 and 16 are sufficiently screwed into the turnbuckle 17 so as not to come off from the turnbuckle 17. Further, from each through hole 18 to both screw shafts 15 and 1
If the turnbuckle 17 is rotated while watching the amount of screwing of the turnbuckle 6 into the turnbuckle 17, it becomes possible to easily set the distance between the plates 6 and 7 to a desired value. Therefore, in each of the rail support members 4a to 4d, the space between the plates 6 and 7 can be easily adjusted.

When the ceiling carrier 5 travels along the rail 1, a large load is applied to the rail 1 by the ceiling carrier 5. The load is received by the support shafts 8 of the rail support tools 4a and 4c located on the right side of the center of gravity G of the rail 1 and the support shafts 8 of the rail support tools 4b and 4d located on the left side of the center of gravity G. Therefore, it becomes possible to prevent the rail 1 from wobbling even when a large load is applied to the rail 1. Also, the axis A of the support shaft 8 located on both the left and right sides of the center of gravity G
And the center of gravity G are equal to each other in the left-right direction, a width-direction moment is not applied to the rail 1 even if a load is applied to the rail 1, and the rail 1 becomes more difficult to wobble.

As described above in detail, in the present embodiment, the rail support members 4a to 4d are sequentially arranged along the rail 1 so that the support shafts 8 are alternately located on both the left and right sides of the center of gravity G of the rail 1. Provided. Therefore, when a load is applied to the rail 1,
Since the supporting shafts 8 located on both the left and right sides of the center of gravity G receive the load, the rail 1 can be prevented from wobbling. Further, since the distance in the left-right direction between the center of gravity G and the axis A of the right-side support shaft 8 and the distance in the left-right direction between the center of gravity G and the axis A of the left-side support shaft 8 are equal, Therefore, the rail 1 can be made more difficult to wobble.

Further, in this embodiment, the rail support members 4a-4 are used.
The support shaft 8 of d is composed of first and second screw shafts 15 and 16 having mutually opposite screws, and a turnbuckle 17 into which both screw shafts 15 and 16 are screwed. Therefore, the space between the plates 6 and 7 can be changed by rotating the turnbuckle 17, and the space between the rail 1 and the support base 2 can be adjusted.

Further, in this embodiment, the turnbuckle 17
Since the three through holes 18 are formed in the
The screw-in amount of the turnbuckle 17 of No. 6 can be seen. Therefore, the two screw shafts 15 and 16 are sufficiently separated so as not to come off from the turnbuckle 17.
It can be confirmed from each through hole 18 whether or not it is screwed into. Also, from each through hole 18 to both screw shafts 15,
By rotating the turnbuckle 17 while watching the screwing amount of the turnbuckle 16 into the turnbuckle 17, the distance between the plates 6 and 7 can be easily set to a desired value. Therefore,
The distance between the rail 1 and the support base 2 can be easily adjusted.

Further, in this embodiment, since the fixing nuts 17a are arranged on the upper side and the lower side of the turnbuckle 17, respectively, the turnbuckle 17 is prevented from rotating after adjusting the distance between the rail 1 and the supporting base material 2. Can be fixed.

Further, in the present embodiment, unlike the prior art, since the rail support members 4a to 4d are provided with only one support shaft 36, when connecting the lower plate 7 to the rail 1, the lower plate 7 is supported by the axis line. It can be freely rotated around A. Therefore, a plurality of supporting bases 2 provided in parallel
On the other hand, even when the rail 1 extends in the twisting direction, the lower plate 7 can be connected to the rail 1 and the rail 1 can be suspended and supported by each supporting base material 2.

The present invention is not limited to the above-mentioned embodiments, but can be embodied with the following modifications. (1) In this embodiment, the first and second screw shafts 15 and 16
The upper plate 6 and the lower plate 7 were connected by the support shaft 8 composed of the turnbuckle 17 and the turnbuckle 17.
May be connected. Further, screws may be formed at both ends of the rod-shaped support shaft, the screws may be passed through both plates 6 and 7, and a nut may be screwed into the screws to connect the support shafts to both plates 6 and 7. .

(2) In this embodiment, the turnbuckle 17
Although the three through holes 18 are formed in the above, the number of the through holes 18 may be appropriately changed. For example, the number of through holes 18 may be one or two, or four or more. Also, the through hole 18
May be omitted. In this case, it is possible to save the trouble of forming the through hole 18.

(3) In this embodiment, the distance between the center of gravity G and the axis A of the right support shaft 8 in the left-right direction is different from the distance between the center of gravity G and the axis A of the left support shaft 8 in the left-right direction. The rail supports 4a-4b may be arranged in this manner.

(4) In this embodiment, the suspension supporting structure for the rail 1 of the ceiling type transfer system and the rail supporting members 4a to 4d.
Although the present invention has been embodied in, the present invention may be embodied in a rail suspension support structure in a monorail for carrying people.

Next, technical ideas other than the claims that can be understood from the above-described embodiments will be described below along with their effects. The rail suspension support structure according to any one of claims 1 to 3, wherein a distance in the width direction of the rail is equal to each other between an axis of a support shaft and a center of gravity of the rail that are located on both sides in the width direction of the rail. The rail support was arranged so that In this case, a moment in the width direction due to the load is not applied to the rail, and the rail can be made more difficult to wobble.

Incidentally, in the present specification, the term "rail" means not only the rail of a ceiling type conveyance system for conveying works etc., but also
It is defined as including other rails that are suspended and supported.

[0039]

As described in detail above, according to the invention of claim 1, the rail can be suspended and supported without wobbling.

According to the second aspect of the present invention, the distance between the supporting base and the rail can be easily adjusted, and the rail can be suspended and supported at the twisted position with respect to the supporting base. .

According to the third aspect of the invention, it is possible to confirm the screwing amounts of the first and second screw shafts into the turnbuckle, and it is easier to adjust the distance between the supporting base and the rail. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing a suspension structure of a rail according to an embodiment.

FIG. 2 is a side view showing a rail support of the present embodiment.

FIG. 3 is a side view showing a conventional rail support.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rail, 2 ... Support base material, 4a-4d ... Rail support tool, 8 ... Support shaft, 15 ... First screw shaft, 16 ... Second screw shaft, 17 ... Turnbuckle, 18 ... Through hole, G … Center of gravity.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B66C 7/08 B66C 7/04 E01B 25/24

Claims (3)

(57) [Claims] 1. A suspension structure of a rail for suspending and supporting the rail on a support base by a plurality of rail supports provided along a rail extending in a horizontal direction, wherein the rail support extends in a vertical direction. A suspension structure for a rail, comprising a support shaft, and rail support members arranged such that the support shaft is alternately positioned on both sides in the width direction of the rail sandwiching the center of gravity of the rail. 2. The suspension structure for suspending a rail according to claim 1, wherein the first screw shaft connected to the supporting base material and the screw screw connected to the rail are reverse-threaded with respect to the first screw shaft. A second screw shaft is coaxially arranged, a cylindrical turnbuckle extending in the same direction as the screw shafts is arranged between the screw shafts, and the first turnbuckle is provided on the upper side and the lower side of the turnbuckle, respectively. Suspended support structure of a rail in which a screw shaft and a second screw shaft are screwed to form a support shaft. 3. The rail suspension structure according to claim 2, wherein the turnbuckle has a through hole formed in a side wall thereof.