JPH0710144B2 - Equipment fixtures - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device mounting tool used for mounting or suspending a device such as a switch on a utility pole or other support.

(Prior Art) Conventionally, this kind of fixture has hooked the hook provided on the device to the locked object protruding from the support such as a telephone pole, and then bolting them, or as shown in FIG. , A horizontal cross-section protruding from the electric pole 50 is provided on the tip surface of the locked body 51 having a substantially U-shape,
The tip faces of the protruding frame-shaped locking bodies 53 protruding from the upper side surface of the device 52 are overlapped with each other, and the bolts 54 are passed through the overlapping portions of the locking bodies 51 and the locking bodies 53 to allow the bolts 54 to pass through. The nut 55 is screwed to the other end to fix them, and
A hook 56 protruding from the lower side surface of the device 52 below 53 is applied to the electric pole 50, and the hook 56 is pressed by a band 57 wound around the outer circumference of the electric pole 50.

(Problems to be solved by the invention) However, these conventional fixtures are such that after locking a locking body or a hook to a locked body, bolting them, etc.
The installation work is complicated and time-consuming.

Therefore, it is not suitable for hot-line work using a hot stick, and also for work by a robot.

(Means for Solving the Problem) The present invention has been made in view of the above point, and can be locked to a locked body having a horizontal cross-section protruding from a support such as a telephone pole. Provide the device with a downward hook-shaped fixture,
It is intended to provide a fixture for a device in which the fixture is hooked on the locked body from above to complete the attachment, and the attachment state is automatically locked.

The concrete structure of the present invention is that the device is provided with a downward hook-shaped fixture that can be locked to a locked body having a U-shaped horizontal section protruding from a support such as a utility pole. Is provided with two side plates protruding from one side wall of the device at a constant interval, and the lower edge of each side plate is provided with a downward groove into which the locked body can be inserted at a corresponding position. A rotatable locking piece is provided between the two side plates below one side of the downward groove,
The upper portion of the rotation locking piece is allowed to project between the lower ends of the downward grooves by rotation, and the upper portion of the rotation locking piece is always rotated between the lower ends of the downward grooves. A spring for urging the piece is provided.

Further, the above-mentioned fixture projects two side plates from one side wall of the device at a constant interval, and at the lower edge of each side plate, a downward groove into which the locked body can be inserted is placed at a corresponding position. Provided,
Between these two side plates on the side of each downward groove, an upper protrusion that is pressed against the upper part of the locked body inserted in each downward groove and a side groove provided on one side of the locked body in this state Movably provided with movable locking pieces each having a lower protrusion that is loosely fitted to
When the movable locking piece is rotated, the projection is allowed to project between the downward grooves, the lower projection of the movable locking piece is not always projected between the downward grooves, and the upper projection is between the downward grooves. A structure may be provided in which a spring that biases the movable locking piece so as to project is provided.

(Operation) To mount a device on a locked object that has a U-shaped horizontal cross section and is projected from a support, lock the downside groove of each of the two side plates of the fixture provided on one side of the device. The fixture is lowered onto the locked body as if inserting the body. Then, the upper part of the rotation locking piece projects at the lower end between the downward grooves, and this hits the locked body, but this rotation locking piece works together with the weight of the device, and the force of the spring acts. The upper part is disengaged from the lower part of each downward groove so that the locked body can be inserted into each downward groove. In this way, when the locked body enters in each downward groove,
The upper part of the rotation locking piece does not catch on the locked body, projects between the lower ends of the downward grooves due to the force of the spring, and the upper part abuts on the lower end of the locked body, and does not rotate further. As a result, the rotation locking piece is located at the lower end of the locked body, and even if the fixture swings up with respect to the locked body, the rotation locking piece catches the locked body. , I can't lift it and it won't come off. Therefore, the fixture is locked to the locked body. To remove the fitting from the locked body, the rotary locking piece is rotated against the force of the spring to release it from the lower end of the locked body, and in this state, the fitting is locked. You can pull it up from.

In addition, a movable locking piece having an upper projection and a lower projection is rotatably provided between the two side plates, so that the locked body is inserted into each downward groove of the fixture so that the locked body is inserted into the locked body. As the fixture is lowered, the upper protrusion of the movable locking piece that protrudes between the downward grooves hits the upper part of the locked body, and the movable locking piece rotates against the force of the spring, and the lower part The protrusion enters the side groove of the locked body. As a result, even if the fixture swings with respect to the locked body and is instantly lifted, the lower protrusion of the movable locking piece is locked in the side groove of the locked body, so that the mounting tool is locked. I can't get out of it. To remove this fixture from the locked body, lift the fixture slightly from the locked body and the lower protrusion of the movable locking piece will move upward in the side groove of the locked body. As the fixture is lifted, the locked body against which the upper part of the movable locking piece hits lowers relatively, so that the force of the spring causes the movable locking piece to rotate according to the relative lowering of the locked body. At the same time, the lower protrusion of the movable locking piece is disengaged from the side groove of the locked body. Therefore, the fixture can be lifted off the locked body.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the present invention, in which an upper mount 2 is provided on one side of the device 1 and a lower mount 3 is provided on the lower side of the device 1. In addition, a band 5 is provided above the outer periphery of the telephone pole 4 so that a locked body 6 having a substantially U-shaped horizontal cross section.
A frame-shaped locked body 8 having a substantially quadrangular horizontal cross section is provided by a band 7 at the lower part thereof, and the upper fixture 2 of the device 1 is mounted on the locked body 6 of the electric pole 4, The lower fixture 3 of the device 1 is attached to the frame-shaped locked body 8 of the electric pole 4 to attach the device 1 to the electric pole 4.

The upper fixture 2 is attached via a pedestal 9 provided on one side of the device 1. Two pedestals 10 are provided on the pedestal 9 at regular intervals, and at the tips of these side plates 10. Tip plate
I have set 11 together. Vertically downward grooves 12 are formed at the corresponding positions of the lower edges of the side plates 10, and the downward grooves 12 have a shape in which one lower side is widened. A bearing 13 having two side plates is projectingly provided on the pedestal 9 below each of the downward grooves 12, and a rotary locking piece 15 is pivotally supported on a shaft 14 provided on the bearing 13. Further, the rotation locking piece 15 has a narrow fan shape with an expanded upper portion, and a spring 16 wound around the shaft 14 always causes the rotation locking piece 15 shown in FIGS.
As shown in the figure, a rotation locking piece is provided between the lower ends of the downward grooves 12.
The rotation locking piece 15 is urged so that the upper portion of 15 projects.

Further, the lower fixture 3 has a supporting frame 18 protruding from the side wall of the device 1, and a cylindrical body 19 having a tapered lower portion is hung on the lower surface of the tip of the supporting frame 18, and the outer circumference of the cylindrical body 19 is lowered. A plurality of cuts 20 are made at appropriate intervals in parallel with the axial direction.

Then, in order to mount the device 1 of the first embodiment on the locked body 6 and the frame-shaped locked body 8 of the electric pole 4, the lower groove 12 of each of the two side plates 10 of the upper fixture 2 of the device 1 should be mounted. The upper fixture 2 is lowered onto the locked body 6 so that the locked body 6 is inserted. Then, as shown in FIG. 2, the upper part of the rotary locking piece 15 projects between the lower ends of the downward grooves 12, and the locking locking piece 15 hits the locked body 6. 1
As it is lowered, the rotation locking piece 15 rotates against the force of the spring 16, and as shown in FIG.
6 is disengaged from between the lower end portions of the
The locked body 6 can be inserted until the upper edge of the locked body 6 hits. When the locked bodies 6 enter the respective downward grooves 12 in this manner, the upper portion of the rotary locking piece 15 does not catch on the locked bodies 6 and the lower end portions of the downward grooves 12 due to the force of the spring 16. It projects in the middle, and its upper part abuts on the lower end of the locked body 6 and does not rotate any further.

As a result, as shown in FIG. 1, even if the rotation locking piece 15 is located at the lower end of the locked body 6 and the upper fixture 2 swings up with respect to the locked body 6, the rotation lock piece 15 does not rotate. The dynamic locking piece 15 catches on the locked body 6, does not lift, and does not come off. In this way, the upper fixture 2 is locked to the locked body 6.

When the upper fixture 2 is attached to the locked body 6, the lower fixture 3 press-fits the tubular body 19 of the lower fixture 3 into the frame of the frame-shaped locked body 8 of the electric pole 4.

As described above, the device 1 is attached to the locked body 6 and the frame-shaped locked body 8 of the telephone pole 4.

In order to remove the upper attachment 2 from the locked body 6, the rotary locking piece 15 is rotated against the force of the spring 16 to release it from the lower end of the locked body 6, and the locked state is obtained. In this state, the upper fixture 2 may be pulled up from the locked body 6, and the lower fixture 3 may simply pull up the tubular body 19 from within the frame of the frame-shaped locked body 8.

FIG. 4 shows an application example of the first embodiment, and each side plate
At the upper edge of each downward groove 12 of 10, in order to prevent thinning due to vibration, different kinds of wear-resistant metal 12a, for example, Evajour material,
It is made by embedding stainless steel material.

5 and 6 show a second embodiment of the present invention, which differs from the first embodiment only in the upper fitting.
The upper fixture 2'is attached via a pedestal 21 provided on one side of the device 1. Two pedestals 22 are projectingly provided on the pedestal 21 at regular intervals, and the tips of these side plates 22 are attached. The front end plate 23 is attached to one of the two. Each of these side plates
Vertically downward grooves 24 are formed at corresponding positions on the lower edge of the groove 22, and each of the downward grooves 24 has a shape in which one lower side is widened. A rotary locking piece 26 is pivotally supported on a shaft 25 provided between the two side plates 22 below each of the downward grooves 24. The rotation locking piece 26 has a narrow fan shape with an expanded upper portion, and a spring 27 wound around the shaft 25 always causes rotation between the lower ends of the downward grooves 24 as shown in FIG. The rotation locking piece 26 is biased so that the upper portion of the stopper piece 26 projects. Also, the two side plates on the side of each of the above-mentioned downward grooves 24
A movable pressing piece 29 is pivotally supported on a shaft 28 provided between the shafts 22. The movable pressing piece 29 has an upper protrusion 29a on one side and an lower protrusion 29b on the same one lower side. Then, the movable pressing piece 29 is always brought into contact with the tip plate 23 at the lower back edge thereof by the spring 30, the upper projection 29a is projected above between the downward grooves 24, and the lower projection 29b is retracted from the downward grooves 24. There is.

In the case of the second embodiment, in order to attach the upper fixture 2'of the device 1 to the locked body 6 of the electric pole 4, the lower groove 24 of each of the two side plates 22 of the upper fixture 2'of the device 1 should be fitted. The upper fixture 2'is lowered onto the locked body 6 so that the locked body 6 is inserted. Then, between the lower end portions of the downward grooves 24, there is a rotation locking piece.
The upper part of 26 is projected and hits the locked body 6, but when the device 1 is lowered together with the weight of the device 1, as shown in FIG. When the upper portion of the movable pressing piece 29 is rotated against the force of 27, the upper portion thereof is disengaged from the lower end portion of each downward groove 24, and the upper edge of the locked body 6 comes to the upper portion of each downward groove 24. The upper protrusion 29a contacts the locked body 6. Then, when the upper attachment 2'is further lowered, the movable pressing piece 29 rotates against the force of the spring 30, the lower protrusion 29b presses the lower side surface of the locked body 6, and the locked body 6 moves. As shown in FIG. 5, it is pressed against one side of each downward groove 24. In this way, the upper edge of each downward groove 24 contacts the upper edge of the locked body 6 to complete the attachment.

Also in the case of the second embodiment, similarly to the first embodiment, the rotary engaging piece 26 is caught on the engaged body 6 and the upper attachment 2 '.
Are locked to the locked body 6. And further movable pressing piece
29 presses the locked body 6, and the locked body 6 is pressed against one side of each downward groove 24, and the upper fixture 2 ′ is fixed to the locked body 6 and has no rattling.

7 to 9 show a third embodiment of the present invention, and this third embodiment also differs from the first embodiment only in the upper fitting.
The upper fixture 2 ″ is attached via a pedestal 31 provided on one side of the device 1, and two side plates 32 are provided on the pedestal 31 at regular intervals so as to project therefrom. The end plate 33 is attached to the unit integrally with each of these side plates.
Vertically downward grooves 34 are formed at corresponding positions on the lower edge of the lower edge 32, and each of the downward grooves 34 has a shape in which one lower side is widened. A movable locking piece 36 is pivotally supported on a shaft 35 provided between the two side plates 32 on the sides of each of the downward grooves 34. The movable locking piece 36 has an upper protrusion 36a on one side and an lower protrusion 36b on the same one side. The movable locking piece 36 is always in contact with the tip plate 33 at the lower back edge thereof by the spring 37 so that the upper protrusion 36a is projected above each of the downward grooves 34, and the lower protrusion 36b is moved between the downward grooves 34. I'm retracting. In addition, a gutter is formed in the lower inner side surface of the locked body 6.
I'm wearing 6a.

In the case of the third embodiment, in order to attach the upper fixture 2 ″ of the device 1 to the locked body 6 of the electric pole 4, as shown in FIG.
Each downward groove 34 of the two side plates 32 of the upper fixture 2 "of the device 1
The upper fixture 2 ″ is lowered with respect to the locked body 6 so that the locked body 6 is inserted in the lower groove.
When it enters the upper part of 34, the upper protrusion 36a of the movable locking piece 36
The movable locking piece 36 rotates against the force of the spring 37, which causes the lower protrusion 36b of the movable locking piece 36 to move.
, Enters the side groove 6a of the locked body 6 as shown in FIG. Then, further lowering the upper fixture 2 ″ in this state,
As shown in the figure, the upper edge of each downward groove 34 contacts the upper edge of the locked body 6. At that time, the movable locking piece 36 does not rotate and the lower protrusion
36b moves down a little in the side groove 6a of the locked body 6.

As a result, the upper attachment 2 ″ swings with respect to the locked body 6 and even if it is instantly lifted up, the lower protrusion 36 b of the movable locking piece 36.
Is loosely fitted in the side groove 6a of the locked body 6, so that it does not come off and the upper fixture 2 ″ is locked.

To remove the upper mount 2 ″ from the locked body 6, lift the upper mount 2 ″ slightly from the locked body 6 to the state shown in FIG. 9, and slowly lift the upper mount 2 ″. Then, the locked body 6 against which the upper protrusion 36a of the movable locking piece 36 hits is relatively lowered, and the force of the spring 37 causes the movable locking piece 36 to relatively lower the locked body 6. The lower protrusion 36b of the movable locking piece 36 is disengaged from the side groove 6a of the locked body 6 at the same time. Then, the upper attachment 2 ″ is lifted as it is and removed from the locked body 6. You can

FIG. 10 shows an upper attachment of a fourth embodiment of the present invention. The structure of the fourth embodiment is substantially the same as that of the third embodiment, except that the shaft 35 is made of a spring material. Shaft 35 ', with the spring 37 omitted. In the case of this embodiment, the tip of the upper protrusion 36a of the movable locking piece 36 always projects to the upper part between the respective downward grooves 34, and the locked body 6 is fixed to the downward grooves.
When inserted into 34, the upper protrusion 36a hits the upper portion of the locked body 6 and is pressed by several millimeters or more. This allows the shaft
35 'is deflected, stress is applied to the lower protrusion 36b, and the lower protrusion 3b
The tip of 6b presses the inner wall of the side groove 6a of the locked body 6, and the lower protrusion 36b of the movable locking piece 36 does not easily come off from the side groove 6a. Therefore, the locking by the movable locking piece 6 becomes stronger.

In these embodiments, the upper fixture and the lower fixture have different structures, but the upper fixture structure may be provided above and below. In short, if at least one fixture with the same structure as the upper fixture is used, the device will not unnecessarily disengage from the locked body. Further, in any of the above-mentioned embodiments, a locked body having a U-shaped horizontal cross section is provided on a support such as a utility pole, and a fixture having a downward groove is provided on the device. Even if the locking body is provided on the device and the fixture is provided on a support such as a utility pole, the same effect can be obtained.

(Effects of the Invention) The present invention is configured as described above, and in both the first and second aspects, a device having a U-shaped horizontal cross-section that is provided on a support such as a utility pole is used as a device. The attachment is automatically locked to the locked body only by hooking the attachment having the downward groove provided on the. Therefore, since the device can be attached to the support very easily and has the lock mechanism, the device does not come off from the support even if the support or the device receives an impact. Therefore, it is easy to install even in hot-line work using a hot stick or work using a robot, and is suitable for these works.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a sectional view showing a state in which the fixture of the first embodiment is attached to a support, and FIG. 2 is a view before attaching the fixture of the same embodiment to the support. FIG. 3 is a cross-sectional view showing a state, FIG. 3 is a cross-sectional view showing a state in which the upper attachment of the embodiment is about to be attached to a support, and FIG. 4 is an upper attachment of the application example of the embodiment attached to a support. FIG. 5 is a sectional view showing a state in which the upper attachment of the second embodiment is attached to a locked body of a support, and FIG. 6 is a sectional view showing the upper attachment of the same embodiment as a support. FIG. 7 is a cross-sectional view showing a state in which the upper fitting of the third embodiment is attached to a locked body of a support, FIG. 8 and FIG. 9
Each of the figures is a cross-sectional view showing a state in which the upper fixture of the same embodiment is about to be attached to the locked body of the support, and FIG. 10 is a cross-section showing the state of the upper fixture of the fourth embodiment attached to the support. FIG. 11 is a partial cross-sectional side view of a conventional fixture for a device. In the figure, 1 is a device, 2 is an upper fixture, 3 is a lower fixture,
4 is a telephone pole, 6 is a locked body, 8 is a frame-shaped locked body, 10 is a side plate, 12 is a downward groove, 14 is a shaft, 15 is a rotation locking piece, 16
Is a spring, 22 is a side plate, 24 is a downward groove, 25 is a shaft, 26 is a rotation locking piece, 27 is a spring, 29 is a movable pressing piece, 30 is a spring, 32
Is a side plate, 34 is a downward groove, 35 is a shaft, 36 is a movable locking piece, 36a is an upper protrusion, 36b is a lower protrusion, and 37 is a spring.

Claims (2)

[Claims] 1. A downward hook-shaped fixture is provided on a device, which is engageable with a locked body having a horizontal cross section that is substantially U-shaped and protruding from a support such as a utility pole. Two side plates are projected from the side wall at regular intervals, and the lower edge of each side plate is provided with a downward groove into which the locked body can be inserted at a corresponding position. A rotatable locking piece is provided between the two side plates on the lower side of the side, and the upper portion of the rotating locking piece is made to project between the lower ends of the downward grooves by the rotation. A fixture for a device, comprising a spring for urging a rotation locking piece so that the upper part of the stopper always projects between the lower ends of the downward grooves. 2. A downward hook-shaped fixture is provided on a device, which is capable of being locked to a locked body having a horizontal cross section that is substantially U-shaped and protruding from a support such as a telephone pole. Two side plates are projected from the side wall at regular intervals, and the lower edges of these side plates are provided with the downward grooves into which the locked bodies can be inserted, respectively, at the corresponding positions. Between the two side plates of the above, an upper protrusion that is pressed against the upper portion of the locked body inserted in each downward groove and a lower protrusion that loosely fits in the side groove provided on one side of the locked body in this state are provided. Each movable locking piece is rotatably provided, and the upper projection of the movable locking piece is allowed to project between the downward grooves by rotation, and the lower projection of the movable locking piece is always provided between the downward grooves. The feature is that a spring that biases the movable locking piece is provided so that the upper protrusion does not protrude and the upper protrusion protrudes between the downward grooves. To, the fixture of the equipment.