JP2006149133A - L-shaped dimension adjustment bus duct unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an L-shaped dimension adjustment bus duct unit that can reduce the number of components when a bus duct of a horizontally bent portion is formed and that can thereby make parts management easy and shorten connection working time. <P>SOLUTION: This L-shaped dimension adjustment bus duct unit is provided with an L-shaped rigid cylindrical body 3, expansion adjustment bus duct members 7 mounted at both ends of the cylindrical body 3 in such a way as to expand or contract against the cylindrical body 3, and flexible conductors 5 that electrically connect the expansion adjustment bus duct members 7 inside the cylindrical body 3. Intervals between covers 3a mounted at the ends of the cylindrical body 3 and supporting members 8 provided on the expansion adjustment bus duct member 7 are made adjustable with bolts 9 attached astride the covers 3a and the supporting members 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an L-shaped dimension adjusting bus duct unit capable of connecting bus ducts laid in a direction perpendicular to each other while adjusting the distance between the ducts.

Conventionally, when connecting a bus duct having a portion that bends at right angles to the horizontal direction, a horizontally bent bus duct as disclosed in Patent Document 1 has been used.
A horizontal curved bus duct disclosed in Patent Document 1 is shown in FIG. As shown in FIG. 5, the horizontal bend bus duct 30 is provided with a plurality of insulation-coated conductors 2 in which a plate-like conductor 2a is insulation-coated. 2 are stacked and covered with a metal housing 6.
At one end, an expanded step 4 is provided in which the tip of the insulating coated conductor 2 is widened so as to have a predetermined interval between the adjacent insulating coated conductors 2. The connection coating 35 is formed by stripping off the required length of the insulation coating at the tip of 2. Reference numeral 36 denotes a duct side plate.

  Further, the insulating coated conductor 2 extending to the other end is bent at a step at a right angle to form a bent portion 37, and the insulating coating is stripped off at the tip to form a connection portion 38. ing. Here, reference numerals 39a and 39b respectively denote an inner L-shaped bent duct side plate and an outer L-shaped bent duct side plate provided inside and outside the bent portion 37, respectively.

  In the case of the horizontal bend bus duct 30 disclosed in Patent Document 1 shown in FIG. 5, there is an advantage that a standard bus duct can be connected to both ends only by forming the expanded step portion 4 that is difficult to form only at one end. is there.

By the way, when laying bus ducts in factories, etc., it is necessary to lay while avoiding obstacles such as existing pillars and exhaust ducts, so it is usually necessary to adjust the dimensions between two bus ducts that are separated from each other at any connection point. Become.
Therefore, for example, when the horizontal curve bus duct 30 described in Patent Document 1 is used to adjust the dimensions in two directions while forming the horizontal curve portion, the dimensions are adjusted at both ends of the horizontal curve bus duct 30 as shown in FIG. It is necessary to connect the bus duct units 40 and 40 respectively.

FIG. 7 shows an example of the dimension adjusting bus duct unit 40. The dimension adjusting bus duct unit 40 is inserted between standard bus ducts having a separation distance for dimension adjustment.
As an example of the bus duct unit 40 for dimension adjustment, for example, a plurality of flexible conductors 5 formed by laminating thin plates made of copper or aluminum and having terminals 5a and 5a at both ends thereof, and the plurality of flexible conductors are provided. Covering the insulating coated conductor 2 connected to both ends of the conductive conductor 5 and having the outside covered with the housing 6, and the flexible conductor 5 and the connecting portion of the flexible conductor 5 and the insulating coated conductor 2. And a box body 43 and a box body 44 each fixed to the housing 6.
Incidentally, the length of the flexible conductor 5 is set to a length corresponding to a length in which the distance between two standard bus ducts to be connected is expected to be the maximum in design.
On the other hand, the box body 43 and the box body 44 are configured such that the end of the box body 44 is slidable inside the end of the box body 43 in an inscribed state. The dimension in the length direction, that is, the dimension in the horizontal direction, that is, in the left-right direction toward FIG. 7, can be adjusted.
More specifically, an elongated hole 45 is provided in the left and right direction toward the end of the box 44 at the end of the box 43 in the left-right direction toward FIG. Screw holes are formed corresponding to the long holes 45, and the box 43 and the box 44 are fixed via bolts 46 at predetermined positions within the length of the long holes 45. Yes. Here, reference numeral 47 is a washer used as necessary.
Incidentally, the length of the long hole 45 of the box body 43 and the formation position thereof are the same as the length of the flexible conductor 5 described above, and the length at which the distance between the two bus ducts to be connected is expected to be maximized. It is designed to be compatible.

When such a dimension adjusting bus duct unit 40 is mounted between two bus ducts that are separated and opposed to each other, first, the bolt 46 that fixes the box 43 and the box 44 is loosened to loosen the box 43 and the box. 44 and slidable with each other in an inscribed state. Then, connection is made between the connection portion 35 made of the conductor 2a of each insulation-coated electric wire 2 projecting outside both ends of the box bodies 43 and 44 and the conductor 2a of a standard bus duct (not shown). During this connection, the flexible conductor 5 bends corresponding to the separation distance between the two bus ducts, and the box body 43 and the box body 44 slide in the inscribed state along with this, so that they are separated from each other. The distance is adjusted. That is, the narrower the distance between the two bus ducts that are connected, the more the flexible conductor 5 bends, and the amount of overlap between the boxes increases, so that the dimension of the distance between the bus ducts is adjusted.
Thus, when the dimension adjustment of the separation distance between both bus ducts is performed by the change in the amount of deflection of the flexible conductor 5 and the change in the amount of overlap between the boxes, the box 43 and the box are finally When the bolts 46 are tightened into the screw holes provided in the box 44 at the portion of the long hole 45 with the body 44 via a washer 47 or the like, the mounting of the bus duct unit 40 for adjusting the dimensions between the opposing standard bus ducts Is completed.

  To explain more easily, the distance between the bus ducts to be connected is adjusted. The smaller the distance between the bus ducts, the more the flexible conductor 5 bends and the amount of overlap between the box bodies 43 and 44 increases. If the separation distance is not so narrow, the amount of flexure of the flexible conductor 5 is reduced, and the amount of overlap between the box bodies 43 and 44 is similarly reduced, and the dimension adjustment of the separation distance is performed.

  As the above-described dimension adjusting bus duct unit 40, there is one described in Patent Document 2, for example, in addition to the one shown in FIG.

Japanese Patent Laid-Open No. 11-299064 JP 2003-158812 A

  When the above-described dimension adjusting bus duct unit 40 is used in a horizontal bent portion of the bus duct, two dimension adjusting bus duct units 40 are required in addition to the horizontal bent bus duct 30 as shown in FIG. That is, three parts are required. As a result, there is a problem that parts management is difficult, and more connecting work points are required, so that more time is required for the connection work.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an L-shaped dimension adjusting bus duct unit that can reduce the number of parts when forming a horizontal bent portion of a bus duct, and therefore can easily manage parts and shorten the connection work time. There is.

  In order to achieve the above object, an L-shaped dimension adjusting bus duct unit according to claim 1 is provided with an L-shaped rigid cylinder, and the L-shaped rigid cylinder at both ends of the L-shaped rigid cylinder. An expansion / contraction adjustment bus duct member mounted so as to be able to enter / exit, and a flexible conductor for electrically connecting the expansion / contraction adjustment bus duct member within the L-shaped rigid cylinder. is there.

According to the L-shaped dimension adjusting bus duct unit according to claim 1, the L-shaped rigid cylindrical body constituting the L-shaped dimension adjusting bus duct unit can enter and exit at both ends thereof. Since the expansion / contraction adjustment bus duct member is attached to the two ends, it is connected to both ends of the L-shaped dimension adjustment bus duct unit by using only one L-shaped dimension adjustment bus duct unit, that is, in two directions. It is possible to provide an L-shaped dimensional adjustment bus duct unit capable of adjusting the dimension of the separation distance from the bus duct to be connected.
Since only the L-shaped dimension adjusting bus duct unit is used, parts management is easy, and since the number of parts is small, the number of necessary connection points is reduced and the connection work time can be shortened. .

  The L-shaped dimension adjusting bus duct unit according to claim 2 is the L-shaped dimension adjusting bus duct unit according to claim 1, wherein the expansion / contraction adjusting bus duct member in the L-shaped rigid cylinder is the L-shaped adjusting duct. The elastic member has a support member in a state where there is a gap between the lid attached to the rigid cylinder end of the mold, and the expansion and contraction adjustment is performed by adjusting the gap between the lid and the support member. The amount of the bus duct member that enters and exits the L-shaped rigid cylinder can be adjusted.

  According to the L-shaped dimension adjusting bus duct unit according to claim 2, the expansion adjusting bus duct member in the L-shaped rigid cylinder is attached to the end of the L-shaped rigid cylinder. The structure of the expansion / contraction adjustment bus duct member can be simply configured by simply mounting the support member with a gap between the lid member and the lid member, and adjusting the distance between the cover member and the support member. The amount of entering and exiting the letter-shaped rigid cylinder can be easily adjusted. That is, even if the distance from the bus duct to be connected is not constant, the connection distance can be easily adjusted with one component.

  Furthermore, the L-shaped dimension adjusting bus duct unit according to claim 3 of the present invention is the L-shaped dimension adjusting bus duct unit according to claim 2, wherein the lid is attached to an end of the L-shaped rigid cylinder. A space adjustment bolt for adjusting the space between the lid and the support member is provided across the body and the support member provided on the expansion / contraction adjustment bus duct member.

According to the L-shaped dimension adjusting bus duct unit according to claim 3, the lid body mounted on the end of the L-shaped rigid cylinder and the expansion / contraction adjusting bus duct member are provided. It becomes possible to adjust the space | interval with a supporting member with general-purpose components called a volt | bolt.
Therefore, a general-purpose tool such as a spanner can be used, and the bolt tightening amount can be easily adjusted. Therefore, the adjustment work of the distance from the bus duct to be connected, that is, the dimensional adjustment work can be performed very easily.

  As described above, according to the present invention, when forming a horizontal bent portion of a bus duct, an L-shaped dimension adjusting bus duct unit that can reduce the number of components, and therefore can easily manage components and reduce the connection work time. Can be provided.

Hereinafter, the L-shaped dimension adjusting bus duct unit of the present invention will be described in detail with reference to FIGS.
FIG. 1 shows an embodiment of an L-shaped dimension adjusting bus duct unit according to the present invention. The upper part of an L-shaped rigid cylindrical body 3 of the L-shaped dimension adjusting bus duct unit is horizontally cut so that the inside is shown. FIG.

As shown in FIG. 1, the L-shaped dimension adjusting bus duct unit of the present invention is made of a metal L-shaped rigid cylinder 3 and the L-shaped rigid cylinder 3 at both ends thereof. Expansion / contraction adjustment bus duct member 7 detachably attached to the rigid cylinder 3 of the mold, and a flexible conductor 5 that electrically connects the expansion / contraction adjustment bus duct member 7 within the L-shaped rigid cylinder 3. And.
The expansion / contraction adjustment bus duct member 7 is formed by laminating a plurality of insulation-coated conductors 2 in which a conductor 2a made of a copper plate or an aluminum plate is coated with an insulation coating, and covering them with a metal housing 6 at both ends thereof. Expanded stepped portions 4 are formed by spreading the insulating coated conductor 2 for connection. The insulating coating conductor 2 is stripped of the necessary length of the insulating coating at the tip of the expansion step 4 to expose the conductor 2a.
The flexible conductor 5 is a laminate of a plurality of aluminum thin plates. Of course, a plurality of thin copper plates may be laminated.

  The expansion / contraction adjustment bus duct member 7 in the L-shaped rigid cylindrical body 3 has a support member 8 in a state of being spaced from the lid 3 a attached to the end of the L-shaped rigid cylindrical body 3. The distance between the lid 3a and the support member 8 can be adjusted by adjusting the tightening amount of the distance adjusting bolt 9 that is mounted across the lid 3a and the support member 8. That is, by adjusting the distance between the lid 3 a and the support member 8, the amount of the expansion / contraction adjustment bus duct member 7 with respect to the L-shaped rigid cylinder 3, in other words, the lid 3 a of the L-shaped rigid cylinder 3. The amount of protrusion of the expansion / contraction adjustment bus duct member 7 can be adjusted.

Here, a nut 10 is attached to a portion of the support member 8 through which the interval adjusting bolt 9 penetrates by welding or the like, and the interval adjusting bolt 9 is screwed into the nut 10 so that the support member 8 is L-shaped. The distance between the lid body 3a and the support member 8 is adjusted by moving the rigid cylinder body 3 closer to the lid body 3a or conversely away from the lid body 3a. Here, reference numeral 9a denotes a screw portion provided on the distance adjusting bolt 9.
Incidentally, the support member 8 is firmly fixed to the metal housing 6 of the expansion / contraction adjustment bus duct member 7 by welding or the like.

  At the end of the expansion / contraction adjustment bus duct member 7 in the L-shaped rigid cylinder 3, the conductor 2 a of the insulating coated conductor 2 and the flexible conductor 5 are connected by a connection sleeve 11.

A case where the L-shaped dimension adjusting bus duct unit is connected while adjusting the distance between the other ducts connected at both ends of the bent portion of the bus duct will be described in detail below.
The L-shaped dimension adjusting bus duct unit itself including the length of the flexible conductor 5 is so long that the distance from the standard bus duct to be connected is expected to be maximized. Basically, it is considered that the dimension can be adjusted when the distance to the bus duct of the other party to be connected is smaller than the design value than the maximum separation distance.
Therefore, in the following, the dimension adjustment method when the distance from the connected bus duct to be connected is narrower than the design value will be described with reference to FIG. 2 in which the horizontal expansion / contraction adjustment bus duct member 7 in FIG. 1 is enlarged. .

L-shaped dimension adjustment in which the amount of protrusion of the expansion / contraction adjustment bus duct member 7 from the lid 3a of the L-shaped rigid cylindrical body 3 is substantially maximized so as to be able to cope with the case where the distance from the bus duct connected in advance is maximum. Prepare a bus duct unit.
If the distance to the bus duct of the connection partner is narrower than the design value, it is necessary to move the expansion / contraction adjustment bus duct member 7 in FIG. In this case, the head of the gap adjusting bolt 9 protruding from the lid 3a is rotated counterclockwise with a tool such as a spanner, and is positioned in the L-shaped rigid cylinder 3 of the expansion / contraction adjustment bus duct member 7. The support member 8 attached to the portion is moved in the direction of arrow B. As the support member 8 moves in the direction of the arrow B, the entire expansion / contraction adjustment bus duct member 7 is drawn into the L-shaped rigid cylindrical body 3, and the flexible conductor 5 is also inside the L-shaped rigid cylindrical body 3. To allow the expansion / contraction adjustment bus duct member 7 to move into the L-shaped rigid cylinder 3.

Incidentally, in the case of the conventional dimension adjusting bus duct unit 40 shown in FIG. 7 described above, the flexible conductor 5 is said to be flexible when the horizontal bent bus duct 30 and the dimension adjusting bus duct unit 40 are connected. However, since the flexible conductor 5 is actually a metal plate such as a copper plate or an aluminum plate as described above, it is not easily bent with a small force. Therefore, when fine adjustment of the separation distance is necessary, there is a problem that adjustment work is difficult and adjustment time is long.
However, if the L-shaped dimension adjustment bus duct unit of the present invention shown in FIGS. 1 and 2 is used, the distance adjustment bolt 9 can be used as a general-purpose spanner to adjust the distance between the expansion / contraction adjustment bus duct member 7 and the bus duct to be connected. The operation can be made very easily because it can be adjusted using the In addition, if it is considered that fine dimensional adjustment is necessary, there is also an advantage that it is possible to cope with it by simply making the screw pitch of the screw portion 9a of the distance adjusting bolt 9 smaller.
By the way, when adjusting the separation distance, if it is desired to increase the amount of protrusion of the expansion / contraction adjustment bus duct member 7 from the lid 3a, the distance adjustment bolt 9 is twisted in the opposite direction to that described above to adjust the expansion / contraction. What is necessary is just to move the support member 8 with which the part located in the L-shaped rigid cylinder 3 of the bus duct member 7 is moved to the cover body 3a side.

FIG. 3 shows another embodiment of the L-shaped dimension adjusting bus duct unit of the present invention. The flexible conductor 5 is not formed by laminating copper or aluminum thin plates. For example, a copper wire is braided. We use what we did.
Therefore, the connection between the flexible conductor 5 and the conductor 2a of the insulation coated conductor 2 of the expansion / contraction adjustment bus duct member 7 is not the connection sleeve 11 as shown in FIGS. A connection terminal 12 with a plate-like terminal connected to the terminal is used. That is, a bolt hole formed in the center of the plate-like terminal of the connection terminal 12 with a plate-like terminal attached to the end of the flexible conductor 5 and a bolt hole provided in the plate-like conductor 2a of the insulating coated conductor 2 Bolts 13 are passed through and tightened with nuts 14 so that the conductor 2a and the plate-like terminals of the connection terminals 12 with plate-like terminals are brought into surface contact and are electrically connected. The rest is basically the same as that shown in FIG. 1 and FIG.

  FIG. 4 shows still another embodiment of the L-shaped dimension adjusting bus duct unit of the present invention, in which the support member 8 is made ashtray to increase its mechanical strength. Since other parts are the same as those of the embodiment shown in FIG. 3 described above, detailed description thereof is omitted here.

  In each of the above embodiments, the amount of protrusion / extraction from the end portion of the L-shaped rigid cylindrical body 3 of the expansion / contraction adjustment bus duct member 7 is adjusted by the interval adjustment bolt 9, but means other than the interval adjustment bolt 9 are used. It goes without saying that the distance between the support member 8 and the lid 3a of the L-shaped rigid cylindrical body 3 may be adjusted using the above.

As described above, according to the L-shaped dimension adjusting bus duct unit of the present invention, the distance of the bus duct bent portion can be adjusted at the bent portion of the bus duct by adjusting the distance between the L-shaped rigid cylinder and the lid. Since adjustment can be performed simply by adjusting the distance from the support member mounted on the adjustment bus duct member, adjustment work can be performed very easily.
In addition, since only one L-shaped dimension adjusting bus duct unit of the present invention is required, the parts can be easily managed and the number of connection points associated with the single part is reduced. Connection work time can also be shortened.

  Thus, according to the present invention, an L-shaped dimension adjusting bus duct unit that can reduce the number of parts when forming the horizontal bent portion of the bus duct, and therefore can easily manage parts and reduce the connection work time. Can be provided.

It is explanatory drawing which shows one Example of the L-shaped dimension adjustment bus duct unit of this invention. It is a partially expanded explanatory view for demonstrating the method to adjust the separation distance with the other party bus duct connected with the bus-duct unit for L-shaped dimension adjustment of this invention. It is a partially expanded explanatory view which shows another Example of the bus-duct unit for L-shaped dimension adjustment of this invention. It is a partially expanded explanatory view which shows another Example of the bus-duct unit for L-shaped dimension adjustment of this invention. It is explanatory drawing which shows the example of the conventional horizontal curve bus duct. It is explanatory drawing in the case of performing the dimension adjustment of the separation distance with the bus duct of the other party in the conventional horizontal bending part. FIG. 7 is a partially cut-away explanatory view showing an example of a dimension adjusting bus duct unit used for dimension adjustment in FIG. 6.

Explanation of symbols

2 Insulated sheathed wire 2a Conductor 3 L-shaped rigid cylinder 3a Lid 4 Expanding step 5 Flexible conductor 6 Housing 7 Expansion / contraction adjustment bus duct member 8 Support member 9 Spacing adjustment bolt 11 Connection sleeve 12 Connection with plate-like terminal Terminal 30 Horizontally curved bus duct 40 Bus duct unit for dimension adjustment

Claims (3)

  An L-shaped rigid cylinder, an expansion / contraction adjustment bus duct member that is attached to both ends of the L-shaped rigid cylinder so as to be able to enter and exit the L-shaped rigid cylinder, and the expansion / contraction adjustment bus duct member And a flexible conductor that electrically connects the L-shaped rigid cylinder to the L-shaped dimension adjusting bus duct unit.   The expansion / contraction adjustment bus duct member in the L-shaped rigid cylinder has a support member in a state of being spaced from the lid mounted on the end of the L-shaped rigid cylinder. 2. The amount of movement of the expansion / contraction adjustment bus duct member with respect to the L-shaped rigid cylinder can be adjusted by adjusting a distance between the lid and the support member. Bus duct unit for L-shaped dimension adjustment.   A distance adjusting bolt for adjusting the distance between the lid and the support member across the lid attached to the end of the L-shaped rigid cylinder and the support member provided on the expansion / contraction adjustment bus duct member. The bus duct unit for L-shaped dimension adjustment according to claim 2, wherein the bus duct unit is provided.

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