JPH0134486Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an operating device for a control center that allows a unit to be pushed in and pulled out by rotating a handle.

2. Description of the Related Art In general, a control center has a plurality of unit chambers 2 formed in multiple stages within a housing 1, and each unit chamber 2 is arranged in front of the housing 1, as shown in FIGS. A plurality of closed doors 3 are attached to be openable and closable, and a vertical bus bar 4 is installed inside the housing 1.
A unit 5, which can be freely approached and separated, is housed in each unit room 2 so as to be able to come in and out. In addition, 6 is unit room 2
A rail on the lower surface, 7 is a wheel attached to the bottom of each unit 5 and moves along the rail 6, 8 is a control device attached to each unit 5, 9 is attached to the back of each unit 5 and is connected to the vertical bus bar 4. Power is supplied to the control device 5 of each unit 5 from the vertical bus bar 4 via the plug 9.

Incidentally, the units 5 stored in each unit room 2 are pulled out and pushed in when maintenance inspections or parts replacements are performed on the control equipment 8, etc. However, if the units 5 are heavy, they may be pulled out directly by hand. A control center operating device has been proposed that cannot be pulled out and performs these operations using a mechanical mechanism (see Japanese Utility Model Application Publication No. 176007/1983).

This device will be explained based on FIGS. 9 to 12. FIG. 9 is a perspective view of the attachment/detachment tool 10 of the control center operating device. In the figure, 17 is a U-shaped base, and 18 is a base 17.
19 is a push-in engagement plate formed at both ends of the
20 is a drawer locking plate, 21 is a locking pin, 22 is a support fixed to the front surface of the central part of the base 17, 22a is a female thread formed at the bottom of the support 22, and 23 is a male thread 23a connected to a female thread 22a. 25 is an operating body attached to the tip of the handle 23; 28 and 29 are nuts fixed to the handle 23 by welding or the like; 26 and 27 are push bodies rotatable with respect to the handle 23, and a drawer. The body, 30, 31 is a reinforcing plate rotatable with respect to the handle 23, 32,
33 is a sliding ring. In order to use this attachment/detachment tool 10, the housing 1 and unit 5 are constructed as follows. As shown in FIG. 10, supports 15 having a U-shaped cross section (see FIG. 12) are attached to both front surfaces of the casing 1, and cutouts 16 are formed on both opposing surfaces. On the other hand, a locking piece 34 is attached to the front surface of the unit 5, and a notch 34a into which the handle 23 is fitted is provided in the center of the locking piece 34.
is formed.

Next, the operation of the above embodiment will be explained.

First, two locking pins 21 are fitted into the notches 16 of both supports 15 provided on the casing 1, and both locking parts 18 of the base body 17 are locked to both supports 15, and the unit is assembled. 5, and press the pusher body 2 between them.
6. By arranging the drawer body 27, the operating body 25
is engaged with the engagement piece 34, and the handle 23 is engaged with the notch 34a of the engagement piece 34.

To push in the unit 5, rotate the handle 23 to the right. Then, the handle 23 becomes the first
The movement of the handle 23 linearly moves to the left in Figure 1, and the nut 28, sliding ring 32, reinforcing plate 3
0, transmitted to the engaging piece 34 via the pushing body 26,
Unit 5 is pushed to the left. On the other hand, in order to pull out the unit 5, it is sufficient to rotate the handle 23 to the left.

Problems to be Solved by the Invention However, it is necessary to attach an engaging piece for engaging a large operating body to the front side of the unit, which has the disadvantage that the unit becomes smaller accordingly.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an operating device for a control center that eliminates these drawbacks.

Means for Solving the Problems The present invention has a structure in which a main body having a rotatable pivot shaft is detachably attached to a housing, and an engaging portion is provided at the end of a moving shaft that is screwed to the pivot shaft. While forming
When the engaging portion of the moving shaft is engaged, an engaged hole is formed in the unit to prevent rotation of the moving shaft and separation of the moving shaft and the unit, and by rotating the rotating shaft via the handle, the housing is closed. This allows the unit to be pushed into or pulled out of the body.

Operation After attaching the main body to the housing at the storage position of the unit to be pushed or pulled out, insert the engaging part of the moving shaft into the engaged hole of the unit and use the handle to rotate the rotating shaft. make it move. Then, the engaging portion engages with the engaged hole to prevent rotation of the moving shaft, so that the moving shaft screwed to the rotating shaft moves in the axial direction. When the moving axis moves in the direction of pushing the unit, the unit is pushed into the housing, and when the moving axis moves away from the unit, the moving axis and the unit are prevented from separating, so the unit is not pulled out of the housing. It will be done.

Embodiments Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

Fig. 1 is a front view of the control center operating device with the attachment/detachment tool attached to the housing, Fig. 2 is a view taken along the line A-A in Fig. 1, and Figs. 3 a, b, and c are front views of the unit. The left side view, the bottom view, and FIG. 4 are explanatory diagrams showing the engagement state of the attachment/detachment tool and the unit. FIG. 5 is a sectional view taken along the line B-B in FIG. 4. FIG.
-C is a sectional view taken along the arrow.

As shown in FIG. 1, a rail 37 is provided within the housing 36, and a unit 39 having wheels 38 is placed on the rail 37. the inner surface of the housing 36;
Two L-shaped steels 36a, 3 forming the tab housing 36
Pins 40 serving as fitting portions are welded to each of the pins 6b so as to face each other.

41 is an attachment/detachment tool that can be detachably attached to the housing 36 using the pin 40.

The attachment/detachment tool 41 has the following structure. At both ends of the main body 42 with a length corresponding to the width of the casing 36,
A sliding member 43 is fitted into the main body 42 so as to be slidable along the longitudinal direction. That is, sliding members 43 formed by closing both ends of the square pipe are inserted inside both ends of the square pipe-shaped main body 42 . A hole 44 is formed in the sliding member 43 as a fitting portion into which the pin 40 is fitted. Furthermore, elongated holes 45 extending in the longitudinal direction of the main body 42 are formed at both ends of the main body 42, and rods 46 are formed in the sliding member 43, and when the rods 46 are inserted into the elongated holes 45, the sliding member The sliding amount of 43 is limited.

A rotation shaft 47 is provided approximately at the center of the main body 42 and is substantially perpendicular to the main body 42 . The rotation shaft 47 is the main body 42
It is rotatably supported by bearing plates 49 and 50 which are fixed to the main body 42 via bolts 48 (see FIG. 4). At one end of the rotation shaft 47,
A notch 47a is formed for connecting a handle (not shown) to rotate the rotation shaft 47, and a female thread (right-hand thread) 47b is formed at the other end. A moving shaft 51 is screwed to the rotation shaft 47.
That is, the male thread (right-hand thread) that is screwed into the female thread 47b.
51a is formed at one end of the moving shaft 51. An engaging portion is formed at the other end of the moving shaft 51. In order to form an engaging portion, in this embodiment, a pin 51b is passed through and fixed to the moving shaft 51 in a direction perpendicular to its axis.

On the other hand, the unit 39 is composed of two steel members 52 having a U-shaped cross-section and two steel members 53 having an L-shaped cross-section. is equipped with two positioning pins 54. And unit 39
The front part of the unit 39 engages with the pin 51b of the moving shaft 51 to rotate the moving shaft 51 and connect the moving shaft 51 and the unit 39.
An engaged hole 55 is formed to prevent separation from the contact hole 55. The engaged hole 55 has the following structure. A through hole 56 through which the moving shaft 51 can be inserted together with the pin 51b is bored approximately in the center of the steel material 52,
Plate materials 5 are installed inside the steel material 52 on both sides of the through hole 56.
7 and 58 are welded together, and a stopper 59 is welded between the plates 57 and 58. A notch 58a is formed at the lower part of the front end of the plate 58, and a notch 57a is formed at the upper part of the front end of the plate 57.

Next, the operation of such a control center operating device will be explained.

When pushing the unit 39 into the housing 36,
First, by moving the rod 46 within the elongated hole 45, the sliding member 43 is slid and the pin 40 is fitted into the hole 44, thereby attaching the attachment/detachment tool 41 to the housing 36. Next, while holding down the moving shaft 51 by hand so that it does not rotate, a handle (not shown) connected to the rotating shaft 47 is rotated to the left. Then, the moving shaft 51 moves toward the unit 39, guiding the pin 51b to enter the through hole 56. The pin 51b enters the through hole 56, and the end of the moving shaft 51 stops at the stopper 59.
If the handle is rotated to the left after contacting the unit 39, the unit 39 is pushed by the moving shaft 51 and pushed into the housing 36. At this time, the positioning pin 54
hits the casing 36, and the unit 39 is positioned. When detaching the attachment/detachment tool 41 from the housing 36, the hole 44 and the pin 40 are disengaged from each other by reversing the procedure described above. When rotating the handle to the left, the rotation axis 47 and the movement axis 5
1, the moving shaft 51 also tries to rotate to the left due to friction with the plate members 57 and 58, but
Due to the relationship between the positions of pins a and 58a, the rotational position of the pin 51b of the movable rod 51 is the same as when it was inserted, and therefore the movable rod 51 can be removed from the through hole 56 by pulling it as it is.

On the other hand, when pulling out the unit 39 from the casing 36, after attaching the attachment/detachment tool 41 to the casing 36 as described above, hold down the moving shaft 51 so that it does not rotate while rotating the handle counterclockwise, so that the pin 51b is inserted into the through hole. Guide you to enter 56. The moving shaft 51 moves toward the unit 39, and when the end of the moving shaft 51 hits the stopper 59, the handle is rotated clockwise.
Then, the moving shaft 51 also rotates clockwise due to the frictional force with the rotating shaft 47, and the notches 57a, 5 of the plates 57, 58
8a, the pin 51 comes into contact with the upper surface of the steel material 52, and the rotation of the moving shaft 51 stops. If you continue to rotate the handle to the right, the movement axis 5
1 moves toward the rotation axis 47, and the pin 5
1 hits the steel material 52, the unit 39 is pulled out from the housing 36. After the unit 39 is pulled out, the handle is slightly rotated to the left to align the pin 51b with the position when inserted into the through hole 56, and then the attachment/detachment tool 41 is removed from the housing 36 by reversing the procedure described above.

In this way, the attachment/detachment tool 41 is attached to the position where the unit 39 is to be pushed in or pulled out, and the pushing or pulling operation is performed.

Effects of the invention As explained above, according to the present invention, the main body of the attachment/detachment tool is made detachable from the casing, so there is no need to provide an attachment/detachment tool for each unit housed in the casing, resulting in low manufacturing costs. . Further, since it is only necessary to form an engaged hole in the unit and there is no need to attach a member that engages with the moving shaft to the outside of the unit, there is no problem of having to make the unit smaller as in the prior art.

[Brief explanation of the drawing]

1 to 6 relate to the control center operating device according to the present invention, in which FIG. 1 is a front view of the attaching/detaching tool attached to the housing, FIG. 2 is a view taken along arrow A-A in FIG. Figures 3a, b, and c are a front view, left side view, and bottom view of the unit, Figure 4 is an explanatory diagram showing the engagement state of the attachment/detachment tool and the unit, and Figure 5 is taken along the arrow B-B in Figure 4. The perspective view, FIG. 6 is the CC arrow view of FIG. 5, FIG. 7,
Figure 8 relates to a general control center, Figure 7 is a perspective view, Figure 8 is a cross-sectional structural diagram, Figures 9 to 12 relate to the conventional control center operating device, and Figure 9 is a detachable FIG. 10 is a plan view showing how the attaching/detaching tool is attached to the housing, FIG. 11 is an explanatory diagram illustrating the operation of the control center operating device, and FIG. 12 is a perspective view of the support. be. 36...Casing, 39...Unit, 40...Pin, 41...Attachment/detaching tool, 42...Main body, 43...Sliding member, 44...Hole, 47...Rotation shaft, 47b...
...Female thread, 51...Movement axis, 51a...Male thread,
51b...Pin, 55...Engaged hole.

Claims (1)

[Scope of utility model registration request] A fitting portion formed to face the inner surface of the casing in which the unit is housed, a main body having a length corresponding to the width of the casing, and a sliding portion on both ends of the main body along the longitudinal direction of the main body. a sliding member that is movably provided and has a fitted portion for fitting with the fitting portion; a rotatable pivot shaft that is provided approximately at the center of the main body and substantially perpendicular to the main body; , a handle connected to the rotating shaft; a moving shaft having one end screwed to the rotating shaft and an engaging portion formed at the other end; and a moving shaft formed on the unit and connected to the engaging portion of the moving shaft. An operating device for a control center, comprising an engaged hole that engages to prevent rotation of the moving shaft and separation of the moving shaft and the unit.