JP2017050955A - Fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture which is usable with an existing mounting bracket and easily fixes the mounting bracket by using an indirect line tool.SOLUTION: A fixture 1 fixes a mounting bracket to a cross arm and includes: a rod body 11 which is inserted into a bolt hole of the mounting bracket and spanned in the mounting bracket; a U shaped body 31 which houses the rod body 11 and makes pressure contact with a wall surface of the cross arm when fixing the fixture 1; and a fastening bolt 41 which connects the rod body 11 with the U shaped body 31 and presses an upper side 34 of the U shaped body 31 to the wall surface of the cross arm when fixing the fixture 1. A distance between the rod body 11 and the U shaped body 31 may be varied by the fastening bolt 41.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fixture used when fixing a mounting bracket to a brace.

  The poles include pole transformers that step down the voltage, high-voltage cutouts that protect the pole transformers, high-voltage lightning arresters that protect the cables from lightning damage, high-voltage pin insulators, etc. Mounted on the power pole. Among these, the high-voltage cutout and the high-voltage lightning arrester are attached to a brace (arm) via a mounting bracket.

  A typical mounting bracket used here is a body composed of a straight strip and a L-shaped strip or a body composed of a pair of L-shaped strips and an end of the strip. It is fixed to the arm metal by fitting the main body into the arm metal from the opened side and finally fastening the end portion of the band plate material on the opening side with the bolt and nut (for example, see Patent Document 1). ).

  Many ideas have been proposed for mounting brackets to be attached to the brace. For example, there are mounting brackets (for example, see Patent Document 2) that can be used for armatures of different sizes, and mounting brackets that can be used universally for both cylindrical and box-type high-pressure cutouts (for example, (See Patent Document 3).

Japanese Patent Laid-Open No. 11-346425 JP 2000-270452 A JP 2011-142730 A

  The following issues have been pointed out regarding mounting brackets. The mounting bracket is fixed to the arm using an indirect live tool (hot stick), and the bolts and nuts are usually tightened using a ratchet wrench attached to the tip of the indirect live tool. Is called. At the time of the tightening operation, a pressing force is applied to the nut (or bolt), so that the receiving-side bolt (or nut) is easily idled (turned). For this reason, when the nut (or bolt) is tightened, it is necessary to take measures such as pressing the receiving-side bolt (or nut) with an indirect hot wire tool so that the receiving side bolt (or nut) does not run idle, and the tightening operation takes time.

  Clamping bolts or nuts that can be easily tightened to solve the above problems have been proposed, but these are dedicated products that are used in combination with a specific mounting bracket, and they are used to fix existing mounting brackets. I can't do it. For these reasons, the development of a fixture that can be used for an existing mounting bracket and can be easily tightened is awaited.

  An object of the present invention is to provide a fixture that can be used for an existing mounting bracket and can be easily fixed using an indirect hot wire tool.

  The present invention is a fixture for fixing a mounting bracket to a brace. The rod is inserted into a bolt hole of the mounting bracket and spans the mounting bracket, and the rod is accommodated. A U-shaped body that presses against a wall surface, and a fastening bolt that connects the bar body and the U-shaped body and presses an upper side of the U-shaped body against a wall surface of a brace when fixed, the rod body and the U-shaped body The fixing tool is characterized in that the distance between the fixing bolt and the fastening bolt is variable.

  Further, the fixture of the present invention further includes a support body that supports the rod body, and the rod body is fixed to the support body so that the length protruding from the support body is different on the left and right, and the support body is The rod body is accommodated in the U-shaped body, and the tightening bolt connects the support body and the U-shaped body instead of the rod body.

  In the fixing device of the present invention, the fastening bolt is screwed into a screw hole provided in the support body, and the diameter of the fastening bolt is equal to or larger than the diameter of the rod body. Features.

  Further, in the fixture according to the present invention, the tightening bolt is an eyebolt, and an indirect hot wire tool can be locked to a ring at the head of the eyebolt to tighten the eyebolt.

  Since the fixing tool of the present invention fixes the mounting bracket to the arm metal by bridging the rod body to the bolt hole of the mounting metal and pressing the upper side of the U-shaped body against the wall surface of the arm metal with the tightening bolt, It can also be used for metal fittings. Also, it is not a method of fixing the mounting bracket to the arm using bolts and nuts as in the conventional mounting bracket, so it is easily fixed using an indirect hot wire tool without worrying about the rotation of the bolt or nut. be able to.

  Further, in the case of a fixture provided with a support body that supports a rod body, a fastening bolt having a large diameter can be used, so that the U-shaped body can be pressed against the arm metal with a large force. Therefore, the fixture of this invention can be used conveniently also with respect to the fixture which requires a big clamping force.

It is a perspective view of the fixing tool 1 which fixes a mounting bracket to a brace which is 1st Embodiment of this invention. It is the exploded view which looked at the fixing tool 1 of 1st Embodiment of this invention from the front. It is the exploded view which looked at the fixing tool 1 of 1st Embodiment of this invention from the side surface. It is the exploded view which looked at the fixing tool 1 of 1st Embodiment of this invention from the bottom face direction. It is a figure for demonstrating the point which attaches a high voltage | pressure lightning arrester (illustration omitted) to the armrest 101 using the fixing tool 1 of 1st Embodiment of this invention. It is the side view, front view, and bottom view which show the state by which the fixing tool 1 of 1st Embodiment of this invention was fixed to the bracelet 101. FIG. It is a front view which shows the state which attached the high voltage | pressure cutout 121 to the bracelet 101 using the fixing tool 1 of 1st Embodiment of this invention. It is a perspective view of the fixture 2 which fixes a mounting bracket to a brace which is 2nd Embodiment of this invention.

  FIG. 1 is a perspective view of a fixture 1 that fixes a mounting bracket to a brace according to the first embodiment of the present invention. 2, 3 and 4 are an exploded view as seen from the front, an exploded view as seen from the side, and an exploded view as seen from the bottom.

  The fixing tool 1 is a fixing tool used when fixing a mounting bracket to a brace. Prior to the description of the configuration of the fixture 1, the mounting bracket and the arm metal will be briefly described.

  As shown in FIGS. 5 to 7, the arm metal 101 is a known arm metal (arm) used when a high voltage cutout, a high voltage lightning arrester or the like is attached to a utility pole, and the arm metal 101 shown here has a cross-sectional shape. This is a square general arm.

  The mounting bracket is a bracket for mounting a high-voltage cutout, a high-voltage lightning arrester, etc. to the armrest, and a typical mounting bracket is a pair of strip plates as shown in FIGS. 6 and 7, bolts and nuts (not shown). Secure with. The mounting brackets 71 and 72 shown here are well-known mounting brackets, and are formed in a U shape by L-shaped strip plate materials 73 and 74 or strip plate members 75 and 76 provided with steps. Bolt holes 77, 78, 79, 80 through which bolts for fixing the mounting brackets 71, 72 to the bracelet 101 are inserted are provided at the ends of the strips 73, 74, 75, 76 on the opening side. In the embodiment, the fixture 1 is fixed using the bolt holes 77, 78, 79, 80 instead of the bolts and nuts.

  The fixture 1 includes a rod body 11 that is engaged with bolt holes 77, 78, 79, and 80 provided in the band plate materials 73, 74, 75, and 76 of the mounting brackets 71 and 72, and a support body that supports the rod body 11. 21, a U-shaped body 31 that fixes the fixture 1 by contacting the arm metal 101, and a tightening bolt 41 that presses the U-shaped body 31 against the arm metal 101.

  The rod body 11 is a member that is inserted into the bolt holes 77, 78, 79, 80 of the band plate members 73, 74, 75, 76 of the mounting brackets 71, 72 and is locked to the bolt holes 77, 78, 79, 80. , Made of metal columnar material. The diameter of the rod body 11 is slightly smaller than the bolt holes 77, 78, 79, 80 similarly to the normal bolt. For example, if the bolt holes 77, 78, 79, 80 are 12 mmφ, the diameter of the rod body 11 is 10 mmφ. The length L1 of the rod 11 is a length obtained by adding a locking allowance to the size of the arm metal 101. For example, when the size of the arm metal 101 is 75 mm □, the length L1 of the rod 11 is shown. Is about 100 mm.

  The rod body 11 is provided with a screw hole 13 into which a fixing screw 15 for fixing the rod body 11 and the support body 21 is screwed. The rod body 11 and the support body 21 are connected to each other using the screw hole 13. Is done. The screw hole 13 is provided at a position shifted from the center point with respect to the longitudinal direction of the rod 11.

  The support body 21 is a member for supporting the rod body 11 at a predetermined position, and is made of a metal block-shaped block material. The support body 21 has a length L2 set to about half of the length L1 of the rod body 11. If the length L2 of the support 21 is too long, the fixture 1 cannot be attached to the mounting bracket 71. Conversely, if the length L2 is too short, the rod 11 cannot be stably supported. When the size of the arm metal 101 is 75 mm □, the length L1 of the rod 11 is about 100 mm, and the length L2 of the support 21 is about 50 mm.

  The width W <b> 2 of the support 21 is substantially the same as the width of the strip plates 73, 74, 75, 76 of the mounting brackets 71, 72. The width W2 of the support 21 may be a size that can form a later-described recess 25 into which the rod 11 is fitted. If it is unnecessarily large, it becomes heavy and uneconomical.

  The height H2 of the support 21 is determined in consideration of the height of a later-described recess 25 into which the rod 11 is fitted, and the length with which the screw portion 42 of the tightening bolt 41 is screwed. When the size of 101 is 75 mm □, the length L1 of the rod 11 is about 100 mm, and the length L2 of the support 21 is about 50 mm, the height H2 of the support 21 is about 20 mm.

  A concave portion 25 into which the rod body 11 is fitted is provided on the support body 21. The concave portion 25 is provided at the center in the short direction of the support body 21 in parallel with the longitudinal direction, and the bottom portion 26 of the concave portion 25 has a semi-cylindrical shape so that the rod body 11 is fitted without a gap. The depth 25 is provided such that the upper end 14 of the rod 11 and the upper surface 22 of the support 21 are flush with each other when the rod 11 is fitted in the recess 25.

  In the present embodiment, the recess 25 is provided so that the upper end 14 of the rod 11 and the upper surface 22 of the support 21 are flush with each other when the rod 11 is fitted into the recess 25. 11 and the upper surface 22 of the support 21 need not be flush with each other. Since the concave portion 25 is for stably supporting the rod body 11, the rod body 11 fits in the upper longitudinal direction of the support body 21 as well as the shape in which the upper portion is opened as in the present embodiment. A through hole may be provided and used instead of the recess 25.

  The support 21 is provided with a through hole 28 through which a fixing screw 15 for screwing the rod 11 is inserted. The through hole 28 is provided at substantially the center of the bottom surface 23 so as to penetrate from the bottom surface 23 to the recess 25. Further, the support 21 is provided with a screw hole 29 into which the fastening bolt 41 is screwed.

  The rod body 11 and the support body 21 are the screw holes provided in the rod body 11 by fitting the rod body 11 into the recess 25 of the support body 21 and inserting the fixing screw 15 into the through hole 28 from the bottom surface 23 of the support body 21. 13 is fixed by screwing. Since the screw hole 13 provided in the rod 11 is provided eccentrically with respect to the longitudinal direction of the rod 11, the length of the rod 11 protruding from the support 21 to the left and right is different. Hereinafter, the longer one of the rods 11 protruding from the support 21 will be referred to as a long protrusion 16 and the shorter one as a short protrusion 17.

  The screw hole 29 is provided at a position off the center with respect to the longitudinal direction of the support 21. More specifically, it is provided close to the long protruding portion 16 side of the rod body 11. In this embodiment, when the support body 21 and the U-shaped body 31 are connected by the fastening bolt 41, A screw hole 29 is provided so that the side surface 24 of the support 21 on the short protrusion 17 side and the one end portion 35 of the U-shaped body 31 are flush with each other.

  The U-shaped body 31 is a member that comes into contact (pressure contact) with the wall surface 102 of the arm metal 101 when the attachment metal 71 is attached to the arm metal 101, thereby firmly fixing the attachment metal 71 to the arm metal 101. The U-shaped body 31 is formed by bending a metal plate material into a U-shape, and both side surfaces and the upper surface are open.

  The U-shaped body 31 has a length L3 between the length L1 of the rod body 11 and the length L2 of the support body 21, and a width (inner dimension) W3 of the strips 73 and 74 of the mounting brackets 71 and 72. , 75 and 76 are set wider than the width Wb. Since the U-shaped body 31 needs to be moved so as to cover the strips 73, 74, 75, 76 of the mounting brackets 71, 72 when the fixture 1 is mounted to the mounting brackets 71, 72 (FIG. 5B )), The width W3 must be set wider than the width Wb of the strips 73, 74, 75, 76 of the mounting brackets 71, 72. Further, since the support body 21 is located inside the U-shaped body 31, the width W <b> 3 is set wider than the width W <b> 2 of the support body 21.

  The height H3 of the U-shaped body 31 is set higher than the height H2 of the support body 21. The height H3 of the U-shaped body 31 is such that the distance d1 between the upper end 14 of the rod 11 and the upper side (upper end) 34 of the U-shaped body 31 when the bottom surface 23 of the support 21 is in contact with the bottom surface 32 of the U-shaped body 31. The distance d2 between the wall surface 102 of the arm metal 101 and the upper end 14 of the rod 11 when the fixing tool 1 is attached to the mounting brackets 71 and 72 is set.

  An insertion hole 36 for connecting the U-shaped body 31 and the support body 21 is provided at the center of the bottom surface 32 of the U-shaped body 31. The U-shaped body 31 and the support body 21 can be connected by inserting the tightening bolt 41 into the insertion hole 36 and screwing the tightening bolt 41 into the screw hole 29 provided in the support body 21.

  The tightening bolt 41 is an eyebolt, is equipped with a washer 45 and a spring washer 46, is inserted through the insertion hole 36 of the U-shaped body 31, and is screwed into the screw hole 29 of the support body 21. Commercially available products can be used for the eyebolt 41, the washer 45, and the spring washer 46.

  The length L4 of the threaded portion 42 of the tightening bolt 41 is such that the washer 45 and the spring washer 46 are mounted, and the bottom surface 23 and the U-shaped body 31 of the support 21 when the fixing tool 1 is mounted to the mounting brackets 71 and 72. This is a length obtained by adding a length of about half the length of the screw hole 28 to the distance d3 from the bottom surface inner side 33 of the screw. The interval between the upper end 14 of the rod 11 and the bottom surface 32 of the U-shaped body 31 can be varied depending on the tightening state of the tightening bolt 41.

  Next, a method for using the fixture 1 will be described. FIGS. 5 and 6 are diagrams for explaining a procedure for attaching a high-voltage lightning arrester (not shown) to the arm metal 101 using the fixture 1, and FIGS. 6 (A), (B), and (C) are as follows. It is the side view, front view, and bottom view which show the state where fixing tool 1 was fixed to armrest 101.

  In the fixture 1, the support body 21 to which the rod body 11 is fixed is disposed in the U-shaped body 31, the fastening bolt 41 is inserted from the through hole 36 of the U-shaped body 31, and the screw hole 29 provided in the U-shaped body 31. It is in the state screwed together. At this time, the tightening bolt 41 is kept loose.

  A high-voltage lightning arrester is a known high-voltage lightning arrester that protects equipment and distribution line equipment from surges caused by lightning strikes, and includes a line-side terminal at the top of the lightning arrester body and a ground-side terminal at the lower end. A support band is provided at the bottom. The support band (not shown) is formed of a hollow square body, two faces facing each other at approximately half the longitudinal direction are cut off, and the remaining two faces are bent in an arc shape so as to follow the lightning arrester body. Is formed. The support band is fixed with bolts by placing the mounting portion on the lightning arrester body. A square portion of the support band is an attachment portion to the attachment fitting 71.

  The mounting portion of the support band is provided with a through hole (not shown) through which the bolt is inserted, and the position of the through hole and the square hole (not shown) provided in the band plate member 73 and the band plate body 74 is defined. At the same time, the mounting bracket 71 is attached to the high-voltage lightning arrester via the round-head bolt 81 and the nut 82. In this state, the mounting bracket 71 has an inverted U shape with an opening at the bottom.

  The mounting bracket 71 to which the high-voltage lightning arrester is attached is gripped with an indirect hot wire tool, and inserted into the arm metal 101 from above the arm metal 101 installed horizontally. The mounting bracket 71 is held in this state, and the head 43 of the fastening bolt 41 of the fixture 1 is sandwiched by an insulating jacket which is an indirect live tool, and the long protruding portion 16 of the rod 11 as shown in FIG. Is inserted into the bolt hole 77.

  Next, as shown in FIG. 5B, the long protrusion 16 of the rod 11 is inserted into the bolt hole 77 until the short protrusion 17 of the rod 11 can dodge the strip plate material 74 of the mounting bracket 71. At this time, since the width W3 of the U-shaped body 31 is set wider than the width Wb of the band plate material 73 of the mounting bracket 71, the U-shaped body 31 does not get in the way.

  Next, as shown in FIG. 5C, the rod 11 is moved until the short protrusion 17 of the rod 11 is engaged with the bolt hole 78 of the mounting bracket 71. Accordingly, the fixture 1 is hung in a state where the rod 11 is hooked on the bolt holes 77 and 78 of the mounting bracket 71.

  Finally, as shown in FIG. 5 (D), the head 43 of the tightening bolt 41 is tightened by using an indirect hot wire tool such as a bind hammer or an insulating tool. Thereby, the space | interval of the bottom face 23 of the support body 21 and the bottom face 32 of the U-shaped body 31 becomes narrow, and the U-shaped body 31 raises from the rod 11 as a starting point. Finally, the upper side 34 of the U-shaped body 31 is pressed against the bottom surface (wall surface) 102 of the arm metal 101, and the fixture 1 is firmly fixed (see FIGS. 5 and 6).

  The bind hammer is a tool used for tightening the rings of various tools and removing the cover, and has a shape in which a tapered round bar is bent into a bowl shape and is used by being attached to the tip of an insulating operation bar. The The fixing tool 1 can be easily fixed by engaging and rotating the bind hammer on the ring-shaped head 43 of the tightening bolt 41.

  FIG. 7 is a front view showing a state in which the high-pressure cutout 121 is attached to the brace 101 using the fixture 1. The mounting bracket 72 for attaching the high-voltage cutout 121 to the arm metal 101 and the mounting bracket 71 for attaching the high-voltage lightning arrester to the arm metal 101 have different opening directions, but the procedure for attaching the high-voltage cutout 121 to the arm metal 101 is as follows. Is basically the same as the procedure for attaching to the bracelet 101.

  The high-voltage cutout 121 is a known box-type high-voltage cutout 121 that protects a transformer or the like from an overload or a short-circuit accident. The high-voltage cutout 121 has a discharge part 123 containing a ZnO element at the bottom of the cutout body 122, and discharges this when a surge current flows through the discharge member 124 provided on the opposite side of the discharge part 123. Let The discharge member 124 is formed integrally with a connection fitting 125 for attaching the cutout main body 122 to the attachment fitting 72.

  The connection fitting 125 is made of a metal band plate, and is provided with an inclined portion 127 following the horizontal portion 126 so that the cutout main body 122 is inclinedly attached to the arm metal 101, and an end 128 of the inclined portion 127 is provided. It is bent and formed so as to face the discharge part 123. The cutout main body 122 is fixed to the inclined portion 127 with a screw.

  The horizontal portion 126 of the connection fitting 125 is provided with a through hole (not shown) through which a bolt is inserted, and the position of the through hole and the square hole (not shown) provided in the band plate material 75 and the band plate material 76. , And the mounting bracket 72 is attached to the high-pressure cutout 121 via the round head bolt 81 and the nut 82. In this state, the mounting bracket 72 is U-shaped with one side surface opened.

  The mounting bracket 72 to which the high-voltage cutout 121 is attached is gripped by an indirect hot wire tool and inserted into the arm metal 101 from the side of the arm metal 101 that is horizontally installed. The mounting bracket 72 is held in this state, the U-shaped body 31 of the fixture 1 or the head 43 of the tightening bolt 41 is sandwiched by an insulating Ytco that is an indirect live tool, the long projecting portion 16 of the rod body 11 faces upward, The long protrusion 16 of the body 11 is inserted into the bolt hole 79. At this time, the fastening bolt 41 is loosened.

  The long protruding portion 16 of the rod 11 is inserted into the bolt hole 79 until the end of the short protruding portion 17 of the rod 11 is able to dodge the band plate material 76 of the mounting bracket 72. Is inserted into the bolt hole 79, and the fixture 1 is lowered until the side surface 24 of the support 21 abuts on the strip plate member 76, and the short projection 17 of the rod 11 is locked in the bolt hole 80 of the strip plate member 76. . Thereafter, the tightening bolt 41 is tightened by using an indirect hot wire tool such as a bind hammer or an insulating Yatco. As a result, the upper side 34 of the U-shaped body 31 is pressed against the wall surface 102 of the arm metal 101, and the fixture 1 is firmly fixed.

  FIG. 8 is a perspective view of the fixture 2 that fixes the mounting bracket to the arm bracket according to the second embodiment of the present invention. The same components as those of the fixture 1 of the first embodiment shown in FIGS. 1 to 7 are denoted by the same reference numerals, and description thereof is omitted.

  Unlike the fixture 1, the fixture 2 does not include a support 21 that supports the rod 11. For this reason, the screw hole 29 into which the fastening bolt 41 is screwed is provided in the longitudinal center of the rod body 11. The screw hole 29 may penetrate the rod body 11.

  The U-shaped body 37 has the same basic structure as the U-shaped body 31 of the first embodiment, but is provided with a guide 38 for placing the rod body 11 at a predetermined position. However, this guide 38 may be omitted.

  Further, the height H3 of the U-shaped body 37 is lower than that of the U-shaped body 31 of the first embodiment by the amount that the support body 21 is not provided. Specifically, the height H3 of the U-shaped body 37 is set to be higher than the diameter of the rod 11. The height H3 of the U-shaped body 37 is such that the distance d1 between the upper end 14 of the bar 11 and the upper side 34 of the U-shaped body 31 when the bottom 18 of the bar 11 is in contact with the bottom surface 32 of the U-shaped body 37 is Is set to be larger than the distance d2 between the wall surface 102 of the arm metal 101 and the upper end 14 of the bar 11 when the is attached to the mounting brackets 71 and 72.

  When the high-voltage lightning arrester is attached to the arm metal 101 using the fixture 2, the head 43 of the tightening bolt 41 is gripped by an insulating yoke, and between the bottom portion 18 of the rod 11 and the bottom inner surface 33 of the U-shaped body 37. The space beyond the distance between the bolt holes 77, 78 and the end portions of the strip plates 73, 74 is provided, and one end of the rod 11 is inserted into the bolt hole 77, and thereafter fixed in the same manner as the fixture 1. do it.

  The fixture 1 of the first embodiment has a support body 21 that supports and fixes the rod body 11 as compared to the fixture 2 of the second embodiment, so that the number of parts is increased, but the posture of the rod body 11 is stabilized. . Further, since the screw hole 29 into which the fastening bolt 41 is screwed can be provided in the support body 21, the diameter of the screw hole 29 can be the same as or larger than the diameter of the rod body 11. As a result, it is possible to use the fastening bolt 41 having a large diameter, and the U-shaped body 31 can be pressed against the arm metal 101 with a large force. The fixture 1 can be suitably used for a mounting bracket that requires a large tightening force.

  The fixture 2 of the second embodiment is inferior to the fixture 1 of the first embodiment in terms of tightening force, but can be manufactured at low cost because of its simple structure. The fixing tool 1 and the fixing tool 2 may be selected and used according to the size of the mounting bracket, the required tightening force, and the like.

  As described above, the fixtures 1 and 2 for fixing the mounting bracket to the arm metal according to the present invention are not a method of screwing and fixing a bolt and a nut, and thus have been seen in the conventional arm bracket mounting bracket. There is no rotation between the bolt and nut.

  Further, the fixtures 1 and 2 according to the present invention are a method of inserting the rod 11 into the bolt hole of the mounting bracket and pressing and fixing the upper side 34 of the U-shaped bodies 31 and 37 to the wall surface of the arm bracket. 72, and can be used for a wide range of mounting brackets. The fixtures 1 and 2 according to the present invention have a simple structure and are excellent in durability and reliability.

  As mentioned above, although the fixing tool based on this invention was demonstrated using the fixing tools 1 and 2 of 1st and 2nd embodiment, the fixing tool concerning this invention is not limited to the said embodiment, and is a summary. It can be deformed without changing.

  For example, in the fixture 1 of the first embodiment, the rod body 11 and the support body 21 are separated from each other and are connected by the fixing screw 15, but the connection method may be welding. Further, the rod 11 and the support 21 may be integrally formed. Moreover, in the fixture 1 of 1st Embodiment, although the support body 21 was a rectangular parallelepiped shape, a shape is not limited to a rectangular parallelepiped shape.

  Moreover, in the said embodiment, although an eyebolt is used for the fastening bolt 41, a hexagon bolt can also be used. In the above embodiment, the U-shaped bodies 31 and 37 or the heads 43 of the fastening bolts 41 are gripped by the insulating yoke when the fixtures 1 and 2 are attached, but the U-shaped bodies 31 and 37 may be provided with gripping portions.

  In addition, in the fixtures 1 and 2 of the first and second embodiments, the dimensions such as the height H3 of the U-shaped font have been described. However, the dimensions of the fixture may be appropriately changed in relation to the mounting bracket. It is natural. Further, the mounting bracket is not limited to the above embodiment.

DESCRIPTION OF SYMBOLS 1, 2 Fixing tool 11 Rod body 14 Upper end 16 of rod body Long projection part 17 Short projection part 18 Bottom part of rod body 21 Support body 25 Recess 31, 37 U-shaped body 32 Bottom surface of U-shaped body 34 Upper side of U-shaped body 38 Guide 41 Tightening Attached bolt 43 Head 71, 72 Mounting bracket 73, 74, 75, 76 Band plate material 77, 78, 79, 80 Bolt hole 101 Arm metal 102 Arm metal wall surface

Claims (4)

A fixture for fixing a mounting bracket to a brace,
A rod that is inserted into the bolt hole of the mounting bracket and spanned over the mounting bracket;
A U-shaped body that accommodates the rod body and presses against the wall surface of the armrest when fixed;
The rod body and the U-shaped body are connected, and a clamping bolt that presses the upper side of the U-shaped body against the wall surface of the armature when fixed, and
A fixing tool characterized in that an interval between the rod body and the U-shaped body can be varied by the tightening bolt. Furthermore, a support for supporting the rod is provided,
The rod is fixed to the support so that the length protruding from the support is different on the left and right,
The support body is accommodated in the U-shaped body in a state of supporting the rod body,
The said fastening bolt replaces with the said rod, and connects the said support body and the said U-shaped body, The fixing tool of Claim 1 characterized by the above-mentioned. The fastening bolt is screwed into a screw hole provided in the support,
The fixing tool according to claim 2, wherein a diameter of the fastening bolt is equal to or larger than a diameter of the rod body. The tightening bolt is an eyebolt,
The fixing tool according to any one of claims 1 to 3, wherein an indirect hot wire tool is locked to a ring at a head of the eyebolt, and the eyebolt can be tightened.

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