JPH0326745Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a mounting bracket for a pole-mounted air switch or other power distribution equipment.

Conventionally, when attaching equipment such as a switch to an arm or cross arm on a pole, a rope was first used to pull it up to the arm's position, and a hanger member was installed on the top of the equipment to hang the rope. It was getting worse.

The hanger member is rotatably attached to the device in order to facilitate the hanging of the rope, and is connected with a mounting bolt for connecting and fixing the device to the armrest.

Therefore, when the device is suspended from the arm, the weight of the switch is applied directly to the hanger member via the arm, increasing friction between the mounting bolt and the hanger member, and the hanger member becomes unable to rotate. Therefore, there was a problem that it became difficult to hang the rope on the hanger member. Further, there have been problems in that the hanger member is deformed by the weight of the equipment directly applied to the hanger member and becomes unable to rotate, or that it becomes impossible to remove the mounting bolt from the hanger member.

This invention was made to solve the above problem, and its purpose is to prevent the weight of the equipment from being directly applied to the hanger member and to ensure smooth rotation of the hanger member when the equipment is mounted on a pole. Another object of the present invention is to provide a mounting bracket for a pole-mounted power distribution device that can prevent the hanger member from deforming and prevent the hanger member from rotating and the mounting bolt connected to the hanger member from being unable to be removed.

An embodiment embodying this invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a machine frame attached to the upper part of the air switch 2, and a pair of support members 3 having a U-shaped cross section are provided on both left and right sides of the upper surface in a direction perpendicular to the longitudinal direction of the machine frame 1. It is fixedly installed. Support member 3
Each of the side pieces 3a is formed into a trapezoidal shape as shown in FIG. Reference numeral 5 denotes a cylindrical support shaft that is attached to the front and rear sides of the support member 3 by penetrating between the pieces 3a on both sides as shown in FIG. It is made of a material that does not deform, and a flange portion 5a that engages with the outer surface of the support member 3 is formed on the outer peripheral portion of the inner end thereof.

Reference numeral 6 denotes mounting bolts whose base ends are rotatably connected to the support shafts 5 attached at the four predetermined locations, and the support shafts 6 are connected to the hook holes 7 formed at the base ends of the mounting bolts. A shaft 5 is inserted and rotatably supported.

Reference numeral 8 denotes a support fitting that is stretched between the mounting bolts 6, as shown in FIG. The armrest 4 is held together in cooperation with the armrest 4. Reference numeral 11 denotes a hook as a hanger member whose base end portion 11a as a rod-shaped insertion portion is inserted through the support shaft 5, respectively;
A screw 12 is formed at its base end. Reference numeral 13 denotes a locking protrusion protruding from the proximal end of the distal end hook portion 11b of the hook 11, which abuts against the flange portion 5a of the support shaft 5, and when the hook 11 is further inserted into the support shaft 5, the same is supported. It is made so that it does not become unrotatable with respect to the shaft 5. 14 and 15 are the hooks 1
As shown in FIG. 3, the right-hand nut 14 is screwed to the extent that it does not contact the support member 3, and the right-hand nut 15 secures its position. is held fixed. Therefore, the hook 11 becomes slightly movable in the left-right direction and is rotatably supported on the support shaft 5. Then, the locking protrusion 13 and the nut 1
4 and 15 constitute a retaining member.
As shown in FIG. 1, the hook 11 is attached to each support member 3 on both the left and right sides so that the end hook portions 11b face each other.

Next, the operation of the mounting bracket for the pole-mounted power distribution device configured as described above will be explained.

First, when attaching the air switch 2 to the cross arm 4 on a pillar, as shown in FIG. Raise the arms to 4. During lifting, when the rope R shakes, a torsional force is applied to the hook 11 based on the shaking.
Since the hook 11 rotates, there is no damage to the hook 11 or the support member 3 due to its torsional force, and the lifting can be carried out safely. In addition, when the air switch 2 is attached to the armrest 4, the weight of the air switch 2 is applied to the support shaft 5 via the mounting bolt 6, but it is not deformed, and as a result, the hook 11 is always kept in the same position. It is maintained in a rotatable state with respect to the support shaft 5.

In addition, when lowering the air switch 2 together with the arm 4 from the top of the column, the hook 11 is located below the arm 4 and it is difficult to hang the rope R, but the hook 11 must be turned to a position where the rope R can be easily hung. If you move it, you can easily perform the rope R hanging work. When the aerial switch 2 is suspended to the ground surface, the switch 2 can be lowered safely in the same way as described above even if the rope R shakes. In addition, in this embodiment, double nuts 14 and 15
Although this was done to prevent it from coming off, it may also be done using one nut and a cotter pin.

As described in detail above, this invention includes a pair of support members having a U-shaped cross section fixed to the upper surface of the machine frame at a constant interval perpendicular to the longitudinal direction of the machine frame, and each of the support members. a pipe-shaped support shaft that passes through both sides of the machine frame in the longitudinal direction; The support shaft is loosely inserted into the hook hole of the support shaft, a mounting bolt is rotatably supported with respect to the support shaft, and a rod-shaped insertion part is rotatably inserted into the hollow part of the support shaft, and the insertion bolt is rotatably supported with respect to the support shaft. By providing a hanger member with a hook part having a retaining member that locks on the end face of the support shaft at both ends of the part, when the power distribution equipment for pole-mounting is installed on the pole, the power distribution equipment can be easily attached to the mounting bolts. Since the load is applied to the support shaft and not directly to the hanger member with the hook portion, the hanger member with the hook portion can be rotated smoothly even when mounted on a pole. Therefore, when taking down the power distribution equipment from the pole, the hanger member with the hook part can be easily rotated.
A rope etc. can be easily hung on the hook part. Moreover, the support shaft prevents deformation of the hanger member and prevents the hanger member from being able to rotate and the mounting bolt connected to the hanger member from being unable to rotate, making it practical for use as a mounting bracket for pole-mounted power distribution equipment. It is excellent.

[Brief explanation of the drawing]

FIG. 1 is a front view of a mounting bracket that embodies this invention, FIG. 2 is a right side view, and FIG. 3 is a front sectional view of the main parts of the mounting bracket. Machine frame...1, Support member...3, Side piece...3a,
Support shaft...5, Mounting bolt...6, Hook hole...
7. Hook as a hanger member with hook part...
11. A base end portion as a rod-shaped insertion portion...11a, a locking protrusion as a retaining member...13, and a nut...14, 15.

Claims (1)

[Claims for Utility Model Registration] A pair of support members 3 having a U-shaped cross-section fixed to the upper surface of the machine frame 1 at a constant interval perpendicular to the longitudinal direction of the machine frame 1, and each of the above-mentioned supports. A pipe-shaped support shaft 5 is attached to both sides 3a of the member 3 through the machine frame 1 in the longitudinal direction.
The end portion is inserted between both side pieces 3a of each support member 3, and the support shaft 5 is loosely inserted into a substantially circular hook hole 7 formed at the same end portion, and the support shaft 5 is inserted into the support shaft 5. Mounting bolt 6 rotatably supported against
A rod-shaped insertion portion 11a is rotatably inserted into the hollow portion of the support shaft 5, and retaining members 13, 14, 15 that lock onto the end surface of the support shaft 5 are provided at both ends of the insertion portion 11a. A mounting bracket for a pole-mounted power distribution device, comprising: a hanger member 11 with a hook portion;