JP2009189122A - Assembling jig of bus-duct vertical part spring hanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembling jig of a bus-duct vertical part spring hanger that safely, easily and simultaneously assemble a plurality of spring parts. <P>SOLUTION: The assembling jig of the bus-duct vertical part spring hanger includes: a first side plate which has bolts, coil springs and brackets, and is mounted with part of lower ends of the bolts of the spring parts for a bus-duct vertical part; a second side plate mounted with part of upper ends of the bolts of the spring parts for the bus-duct vertical part; a movable side plate which is positioned in the middle of the first side plate and the second side plate, and is moved while compressing the coil springs; a spindle which penetrates the first side plate, the movable side plate, and the second side plate, can move the movable side plate toward the second side plate, and has a spiral groove; an auxiliary shaft arranged at the side of the spindle; and a drive unit which pressure-moves the coil springs to the direction of the second side plate by using the movable side plate by rotating the spindle. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a jig for assembling a bus duct vertical portion spring hanger used in a bus duct vertical support device.

  In a structure such as a high-rise building, a bus duct is used to configure an electric trunk line. Unlike ordinary cables, bus ducts have large loads and rigidity. Further, the bus duct expands and contracts due to a temperature change during energization use or non-use.

  For this reason, a bus duct support device that supports the bus duct vertically is used. The bus duct support device uses, for example, a bus duct line that penetrates each floor of a high-rise building in a generally vertical direction. Coil springs are provided on the support portions of each floor and the side surfaces of the bus duct to absorb the expansion and contraction of the bus duct by the force of the spring. It is a device to do.

  FIG. 9 is a view showing a conventional vertical bus duct support device. Fig.9 (a) is a side view which shows the side surface of a bus duct. FIG. 9B is a front view showing the front of the bus duct. As shown in FIGS. 9A and 9B, a bus duct 103 is disposed substantially vertically through an opening provided in a floor 101 of a building. A base metal fitting 105 is fixed and attached on the floor. Brackets 107 are attached to both side surfaces of the bus duct 103 with screws or the like. A coil spring 109 is vertically disposed between the base metal fitting 105 fixed on the floor and the bracket attached to the side surface of the bus duct.

  In this manner, the bus duct is supported and the expansion and contraction due to the temperature change of the bus duct is absorbed. A coil spring end tray 111 is attached to the upper end and lower end of the coil spring 109 arranged vertically. A bolt 113 passes through the coil spring 109 and the bracket 107. The bolt 113 is fixed to the base metal fitting 105 by a fixing nut 115. An adjustment nut 117 is provided at the lower end of the coil spring 109 of the bolt 113 to adjust the repulsive force of the coil spring 109.

As described above, the bus duct support device arranges the coil spring in a compressed state with a desired force between each floor of the building and the bus duct arranged vertically through the opening of each floor, The bus duct is supported by absorbing expansion and contraction caused by temperature changes of the bus duct.
JP 2003-61235 A JP 2005-287172 A

  As described above, when the coil spring is assembled between the floor of the building and the bus duct, the coil spring of the spring portion including the bolt 113, the coil spring 109, and the bracket 107 is compressed to a desired state. Conventionally, the coil spring 109 is compressed and fixed using the jig shown in FIG. 10, and the coil spring is set to a desired length.

  In the operation of compressing the coil spring of the spring portion, the coil spring is set to a desired compression size by using one jig for one spring portion. Therefore, it took time to work. Furthermore, when assembling a coil spring having a high strength and a large wire diameter, it has been difficult to compress manually. Furthermore, the strength of the jig itself is weak, and when the coil spring is compressed, the whole force tends to jump out of the jig due to the spring force.

  Accordingly, an object of the present invention is to provide a bus duct vertical portion spring hanger assembling jig which can solve the conventional problems and can assemble a plurality of spring portions safely and easily at the same time.

  The present inventor has intensively studied to solve the conventional problems described above. As a result, the following was found. That is, a movable side plate part that can be moved in parallel is provided between two side plates fixedly arranged at predetermined intervals, and a spindle shaft having a spiral groove in the center part, and shafts on both sides thereof. When the auxiliary shaft that slides in the direction is provided, the coil spring is arranged between the movable side plate portion and one fixed side plate portion, and the central shaft is rotated by the drive portion, the movable side plate portion It moves toward the fixed side plate on the drive unit side while compressing. At this time, a notch portion for storage was provided on the movable side plate portion and the fixed side plate portion on the drive portion side so that the bolts of the spring portion would not fall off, and a bracket fixed to the bus duct was fixed to the upper end portion of the coil spring. When the bolts are housed in the notches in the state, it has been found that a plurality of coil springs can be simultaneously set to a desired compression dimension stably without causing the coil springs to jump out during the work.

The present invention has been made on the basis of the above research results, and the first aspect of the bus duct vertical portion spring hanger assembly jig of the present invention includes at least one bolt, a coil spring, and a bracket. A first side plate portion on which a part of the lower end portion of the bolt of the spring portion for the vertical portion of the bus duct is placed;
A second side plate portion on which a part of an upper end portion of the bolt of the at least one bus duct vertical portion spring portion is placed;
A movable side plate portion that is located between the first side plate portion and the second side plate portion and moves while compressing the coil spring;
A spindle shaft provided with a spiral groove portion, penetrating the first side plate portion, the movable side plate portion, and the second side plate portion, and capable of moving the movable side plate portion toward the second side plate portion;
At least one auxiliary shaft disposed laterally of the main shaft;
The bus hanger vertical part spring hanger assembly jig provided with the drive device which rotates the main shaft and presses and moves the coil spring in the direction of the second side plate by the movable side plate.

  According to a second aspect of the bus duct vertical portion spring hanger assembly jig of the present invention, the movable side plate portion includes a notch portion that accommodates a part of the bolt of the spring portion for the bus duct vertical portion, and the second side plate portion. Is a bus duct vertical part spring hanger assembly jig provided with a notch corresponding to the notch of the movable side plate.

  According to a third aspect of the bus duct vertical portion spring hanger assembly jig of the present invention, the cut portion includes a vertical portion and a vertical portion in the vicinity of the entrance in order to prevent the stored bolt from jumping out of the cut portion. It is a bus duct vertical part spring hanger assembly jig provided with the expansion part extended to a lower end part.

  According to a fourth aspect of the bus duct vertical portion spring hanger assembling jig of the present invention, the driving device includes a manual handle, and the main shaft is rotated by the manual handle so that the movable side plate portion is moved to the spiral groove portion. It is a bus duct vertical part spring hanger assembly jig which moves toward the said 2nd side board part along.

  According to a fifth aspect of the bus duct vertical portion spring hanger assembly jig of the present invention, the auxiliary shaft is arranged in parallel at predetermined intervals on both sides of the main shaft, and the movable side plate portion is the auxiliary shaft. Is a bus duct vertical spring hanger assembly jig integrally including a cylindrical portion that covers the periphery of the auxiliary shaft and slides along the axial direction of the auxiliary shaft.

  According to a sixth aspect of the bus duct vertical portion spring hanger assembly jig of the present invention, the at least one bus duct vertical portion spring portion includes three bus duct vertical portion spring portions, and the movable side plate portion includes A coil spring end saucer at one end of the coil spring is abutted and housed in the notch, and a coil spring end saucer at the other end of the coil spring is accommodated in the notch of the second side plate. It is a bus duct vertical part spring hanger assembly jig stored in contact with each other via a bracket attached to the bus duct.

  According to a seventh aspect of the bus duct vertical portion spring hanger assembly jig of the present invention, the bracket is made of a substantially L-shaped member, and the other surface located at a right angle with the surface attached to the bus duct as the coil It is a bus duct vertical part spring hanger assembly jig which mounts the said bus duct vertical part spring part so that it may contact | abut to the said other surface of a spring.

  According to an eighth aspect of the bus duct vertical portion spring hanger assembly jig of the present invention, the extended portion of the cut portion of the second side plate portion has a shape corresponding to the coil spring end tray, and is placed. This is a bus duct vertical spring hanger assembly jig in which the coil spring end tray is fixed and supported.

  According to a ninth aspect of the bus duct vertical portion spring hanger assembly jig of the present invention, the coil spring has a desired length on a part of the main shaft that is located between the movable side plate portion and the second side plate portion. It is a bus duct vertical part spring hanger assembly jig provided with the set collar which shows the compressed state.

  According to a tenth aspect of the bus duct vertical spring hanger assembly jig of the present invention, the bus duct vertical spring hanger assembly includes a balance device for smoothly moving the auxiliary shaft as the main shaft is driven. It is a jig.

  According to the present invention, a main shaft having a movable side plate portion that can be moved in parallel between two side plate portions that are fixedly arranged in parallel at a predetermined interval, and a spiral groove in the center portion, Auxiliary shafts that slide in the axial direction are provided on both sides, the coil spring of the spring part is placed between the movable side plate part and one fixed side plate part, and the central shaft shaft is driven to rotate by the drive part. Since the side plate portion moves toward the fixed side plate portion on the drive portion side while compressing the coil spring, a plurality of coil springs can be simultaneously set to a desired compression dimension.

Furthermore, a notch portion for storage is provided on the movable side plate portion and the fixed side plate portion on the drive portion side so that the bolt of the spring portion does not fall off, and a bracket fixed to the bus duct is fixed to the upper end portion of the coil spring. When the bolt is housed in the notch, the coil spring does not pop out during the operation, and a plurality of coil springs can be set simultaneously in a desired compression dimension stably.
According to the present invention, it is possible to provide a bus duct vertical portion spring hanger assembling jig capable of safely and easily assembling a plurality of spring portions at the same time.

The aspect of the bus duct vertical part spring hanger assembly jig of this invention is demonstrated in detail, referring drawings.
One aspect of the bus duct vertical portion spring hanger assembly jig according to the present invention includes a bolt, a coil spring, and a bracket. A first side plate portion,
A second side plate portion on which a part of the upper end portion of the bolt of at least one bus duct vertical portion spring portion is placed;
A movable side plate portion that is positioned between the first side plate portion and the second side plate portion and moves while compressing the coil spring;
A spindle shaft provided with a spiral groove that is movable through the first side plate portion, the movable side plate portion, and the second side plate portion and is movable toward the second side plate portion;
At least one auxiliary shaft arranged on the side of the main shaft;
A bus duct vertical part spring hanger assembly jig comprising a driving device that rotates a main shaft and presses and moves a coil spring in the direction of a second side plate by a movable side plate.

  As described with reference to FIG. 9, the spring portion is attached to a base metal fitting in which one is fixed to the bus duct and the other is fixed to the floor of the building in a state where the coil spring is compressed to a desired state. The bus duct vertical portion spring hanger assembly jig of the present invention is used in order to obtain a desired compression state on the coil spring of the spring portion.

  FIG. 1 is a perspective view showing one embodiment of a bus duct vertical spring hanger assembly jig according to the present invention. FIG. 2 is a plan view thereof, and FIG. 3 is a side view for explaining the main shaft.

  As shown in FIGS. 1 and 2, the first side plate portion 2 and the second side plate portion 3 are fixed in parallel at a predetermined interval. The first side plate portion 2 and the second side plate portion 3 are respectively reinforced on the outside by side plate receiving angles 8 and 9 and fixed to the work table. A movable side plate portion 4 is provided between the first side plate portion 2 and the second side plate portion 3, which is arranged in parallel with these side plate portions and is movable toward the second side plate portion 3. A main shaft 5 in which a spiral groove is formed is rotatably disposed so as to pass through these side plate portions orthogonal to the first side plate portion 2, the movable side plate portion 4, and the second side plate portion 3.

  Auxiliary shafts 6 and 7 are arranged on both sides of the main shaft 5 in parallel with the main shaft 5 at a predetermined interval. The portions of the movable side plate portion 4 corresponding to the auxiliary shafts 6 and 7 are integrally provided with cylindrical portions 10 and 11 that cover the periphery of the auxiliary shafts 6 and 7 and slide along the axial direction of the auxiliary shafts 6 and 7. Is formed. A groove portion corresponding to the spiral groove portion of the main shaft 5 is formed in the portion of the movable side plate portion 4 corresponding to the main shaft 5. The main shaft 5 has a diameter larger than that of the auxiliary shafts 6 and 7.

  In such a state, when the driving device, for example, the manual handle 12 is rotated, as shown in FIG. 3, the main shaft 5 formed with the spiral groove rotates, and the main shaft 5 has a spiral groove. The movable side plate portion 4 provided with the corresponding groove portion moves toward the second side plate portion 3 along the axis of the main shaft 5. Accordingly, the cylindrical portions 10 and 11 provided on the movable side plate portion 4 and sliding along the axial direction of the auxiliary shafts 6 and 7 are connected to the second side plate along the auxiliary shafts 6 and 7 along the axial direction. Slide towards part 3.

Due to the cylindrical portions 10 and 11, the coil spring can be compressed to the same size regardless of the contracted state of the spring.
A concave portion may be formed along the axis of the auxiliary shaft, and a convex corresponding to the concave portion may be formed inside the cylindrical portion so that the movable side plate portion can smoothly move toward the second side plate portion.

  As shown in FIG. 2, a regulating device 15 that regulates the distance between the movable side plate portion and the second side plate portion may be provided in a part of the movable side plate portion. By providing the regulating device, the main shaft is rotated by the rotation of the driving device, and the movable side plate provided with the groove corresponding to the spiral groove of the main shaft is directed to the second side plate along the axis of the main shaft. When moving, the movable side plate portion mechanically stops when it reaches a preset position.

  FIG. 4 is a diagram illustrating another regulating device that regulates the distance between the movable side plate portion and the second side plate portion. As shown in FIG. 4, a stop member 16 that mechanically stops the movement of the main shaft may be provided at a predetermined portion of the main shaft. When the movable side plate portion moves toward the second side plate portion by the rotation of the main shaft, the stop member 16 mechanically prevents the two side plate portions from approaching each other.

  Instead of the regulating device described above and the regulating device that mechanically regulates the distance between the movable side plate portion and the second side plate portion shown in FIG. 2, as shown in FIG. A sensor-attached drive stop device that senses the distance between the side plate portions 3 with the sensor 18 and transmits the information to stop the drive device 17 may be provided. In any case, the movable side plate portion can be stopped at a predetermined position determined in advance.

  FIG. 5 is a diagram for explaining a cut-in portion that houses a bolt. As shown in FIG. 5, the movable side plate portion 4 includes a notch portion 13 that houses a part of the bolt of the bus duct vertical portion spring portion, and the second side plate portion 3 is a notched portion of the movable side plate portion 4. 13 is provided. When the bolt of the spring part is stored in the notch part 13, the front surface of the movable side plate part 4 comes into contact with the end part of the coil spring to fix the coil spring.

  As shown in FIG. 5, the notch 13 includes a vertical part 19 near the entrance and a lower end of the vertical part in order to prevent the stored bolt from slipping out of the coil due to the applied force and jumping out of the notch. And an extended portion 20 extending to the portion. The extended portion 20 preferably has a shape corresponding to the shape of the end portion of the coil spring, the end portion of the coil spring is accommodated in the extended portion, and the coil spring is fixed in that state.

  FIG. 6 is a view for explaining a state in which three spring portions are mounted on the bus duct vertical portion spring hanger assembly jig of the present invention and the coil spring is subjected to a desired compression. FIG. 7 is a side view showing the spring portion. The spring portion 30 includes a coil spring 22 having coil spring end trays 24 and 25 at both ends, a bracket 21 attached to the upper end portion of the coil spring and fixed to the bus duct, and a bolt 28 penetrating these. A repulsive force adjusting nut attached in contact with the lower end of the coil spring.

As shown in FIG. 7, the bracket described above is formed of a substantially L-shaped member, and a surface to be attached to the bus duct faces upward, and the other surface positioned at a right angle abuts the surface of the upper end portion of the coil spring. Are arranged as follows.
FIG. 8 is a plan view when the spring portion is placed horizontally. In the state shown in FIG. 8, the bracket made of a substantially L-shaped member has a surface attached to the bus duct positioned upward.

  As shown in FIG. 6, the three spring portions described with reference to FIGS. 7 and 8 are arranged in parallel and placed on the spring hanger assembly jig 1 described with reference to FIG. The main shaft is rotated by the device, and accordingly, the movable side plate portion is pressurized and moved toward the second side plate portion, and the coil spring of the spring portion is compressed with a desired force, and the pre-set bus duct is connected. It is set so that it can be attached.

  That is, three spring portions 30 are arranged in parallel on the bus duct vertical portion spring hanger assembly jig of the present invention described with reference to FIG. The front end portion 27 of the bolt of the spring portion 30 is placed in a recess provided at the upper end of the first side plate portion. The repulsive force adjusting nut 23 attached to the bolt 28 is placed and positioned on the vertical portion 19 of the notch portion 13 provided in the movable side plate portion 4, and corresponds to the shape of the coil spring end tray 24 on the lower end side. The outer surface of the coil spring end tray 24 is fitted and fixed to the expanded portion 20 having the shape described above. The notch portion 14 provided in the second side plate portion is mounted in a state where one surface of the L-shaped bracket inserted through the bolt is in close contact with the surface of the second side plate portion.

  In a state where the three spring portions 30 are arranged in parallel on the bus duct vertical portion spring hanger assembly jig, the bus duct mounting surface of the L-shaped bracket 21 faces upward. In this manner, with the three spring portions 30 placed on the bus duct vertical portion spring hanger assembling jig, the driving device, for example, the handle 12 is rotated, and the spindle shaft provided with the spiral groove portion rotates. By the rotation of the main shaft, the movable side plate portion 4 moves toward the second side plate portion while compressing the coil spring.

  The cylindrical portions 10 and 11 integrally formed so as to cover the periphery of the auxiliary shafts 6 and 7 below the movable side plate portion 4 are disposed on the auxiliary shaft arranged in parallel with the main shaft. Slide along 6 and 7 axial directions. As described above, the concave portion is formed along the axis of the auxiliary shaft and the convex portion corresponding to the concave portion is formed inside the cylindrical portion so that the movable side plate portion can smoothly move toward the second side plate portion. ing. As a result, the rotation of the main shaft causes the movable side plate portion 4 to move toward the second side plate portion while compressing the coil spring with a desired force.

  At that time, as described above, the notched portion 13 provided at the upper portion of the movable side plate portion is provided with a bolt stored in order to prevent the coil spring from shifting due to the applied force and jumping out from the notched portion. A vertical portion 19 near the entrance and an extended portion 20 extending to the lower end of the vertical portion. The extended portion 20 has a shape corresponding to the shape of the end of the coil spring, and the end of the coil spring is It fits in an expansion part and a coil spring is fixed in the state.

  The movable side plate portion that moves toward the second side plate portion by the rotation of the main shaft is mechanically blocked by a stop member 16 that is provided at a predetermined portion of the main shaft and mechanically stops the movement of the main shaft. .

  In such a state that the coil spring of the spring part is in a desired compression state, the tip of the bolt of the spring part is attached to the base metal fitting fixed to the floor of the building, and the surface of the L-shaped bracket is Mounted on the bus duct.

  As described above, according to the present invention, it is possible to provide a bus duct vertical portion spring hanger assembling jig that can safely and easily assemble a plurality of spring portions at the same time.

FIG. 1 is a perspective view showing one embodiment of a bus duct vertical spring hanger assembly jig according to the present invention. FIG. 2 is a plan view showing one embodiment of the bus duct vertical portion spring hanger assembly jig of the present invention. FIG. 3 is a side view for explaining the main shaft. FIG. 4 is a diagram illustrating another regulating device that regulates the distance between the movable side plate portion and the second side plate portion. FIG. 5 is a diagram for explaining a cut-in portion that houses a bolt. FIG. 6 is a view for explaining a state in which three spring portions are mounted on the bus duct vertical portion spring hanger assembly jig of the present invention and the coil spring is subjected to a desired compression. FIG. 7 is a side view showing the spring portion. FIG. 8 is a plan view when the spring portion is placed horizontally. FIG. 9 is a view showing a conventional vertical bus duct support device. Fig.9 (a) is a side view which shows the side surface of a bus duct. FIG. 9B is a front view showing the front of the bus duct. FIG. 10 is a view showing a conventional bus duct vertical portion spring hanger assembly jig.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bus duct vertical part spring hanger assembly jig 2 1st side plate part 3 2nd side plate part 4 Movable side plate part 5 Main shaft shaft 6 Auxiliary shaft 7 Auxiliary shaft 8 Side plate receiving angle 9 Side plate receiving angle 10 Cylindrical part 11 Cylindrical part 12 Drive Device 13 Cut portion 14 Cut portion 15 Restriction device 16 Stopping member 17 Drive device 18 Sensor 19 Vertical portion 20 Extension portion 21 Bracket 22 Coil spring 23 Nut 24 Coil spring end tray 25 Coil spring end tray 27 Bolt lower end portion 28 Bolt 30 Spring part

Claims (10)

A first side plate portion on which a part of a lower end portion of a bolt of a spring portion for at least one bus duct vertical portion, which includes a bolt, a coil spring, and a bracket, is placed;
A second side plate portion on which a part of an upper end portion of the bolt of the at least one bus duct vertical portion spring portion is placed;
A movable side plate portion that is located between the first side plate portion and the second side plate portion and moves while compressing the coil spring;
A spindle shaft provided with a spiral groove portion, penetrating the first side plate portion, the movable side plate portion, and the second side plate portion, and capable of moving the movable side plate portion toward the second side plate portion;
At least one auxiliary shaft disposed laterally of the main shaft;
A bus duct vertical part spring hanger assembly jig comprising: a driving device that rotates the main shaft and presses and moves the coil spring in the direction of the second side plate by the movable side plate.   The movable side plate portion includes a cut portion that accommodates a part of the bolt of the spring portion for the bus duct vertical portion, and the second side plate portion includes a cut portion corresponding to the cut portion of the movable side plate portion. The bus duct vertical part spring hanger assembly jig of Claim 1 which is.   The said cut | notch part is equipped with the extended part which spreads at the lower end part of the perpendicular | vertical part near the entrance, and the perpendicular | vertical part, in order to prevent the said accommodated bolt from jumping out from a notch part. Bus duct vertical part spring hanger assembly jig.   The driving device includes a manual handle, and the spindle shaft is rotated by the manual handle to move the movable side plate portion along the spiral groove portion toward the second side plate portion. 4. The bus duct vertical portion spring hanger assembly jig according to any one of 3 above.   The auxiliary shafts are arranged in parallel at predetermined intervals on both sides of the main shaft, and the movable side plate covers the auxiliary shaft and slides along the axial direction of the auxiliary shaft. The bus duct vertical part spring hanger assembly jig of any one of Claim 1 to 4 provided with the part integrally.   The at least one bus duct vertical portion spring portion is composed of three bus duct vertical portion spring portions, and a coil spring end tray on one end of the coil spring is formed on the cut portion of the movable side plate portion. The coil spring end tray of the other end of the coil spring is received in contact with and stored in the cut portion of the second side plate portion via a bracket attached to the bus duct. The bus duct vertical part spring hanger assembly jig of any one of 1 to 5.   The bracket is made of a substantially L-shaped member, and the bus duct vertical portion spring is arranged such that the surface to be attached to the bus duct faces upward and the other surface positioned perpendicularly contacts the other surface of the coil spring. The bus duct vertical part spring hanger assembly jig of Claim 6 which mounts a part.   The extended portion of the cut portion of the second side plate portion has a shape corresponding to the coil spring end tray, and the placed coil spring end tray is fixed and supported. Bath duct vertical part spring hanger assembly jig.   The set collar indicating a state in which the coil spring is compressed to a desired length is provided on a part of the main shaft that is positioned between the movable side plate and the second side plate. The bus duct vertical portion spring hanger assembly jig according to any one of claims 8 to 9. The bus duct vertical part spring hanger assembly jig of any one of Claim 1 to 9 provided with the balance apparatus for the said auxiliary | assistant shaft to move smoothly with the drive of the said main shaft.

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