JP6213226B2 - Lifter - Google Patents

Description

The present invention relates to a structure of a lifter used when an electric device such as a unit mounted on a switchboard is inserted into or pulled out of the board.

In general, a lifter is composed of a carriage having front and rear wheels, a standing body vertically installed on the carriage, a support base that is movable up and down with respect to the standing body, and a horizontal support base. Fork-like mounting rods that are supported in the direction and have the same spacing as the rails on which the units in the switchboard are loaded, and adjusting means for finely adjusting the horizontal direction of the mounting rods. When a unit is inserted into a unit room, which is an electrical equipment room in the switchboard, using this lifter, the unit is first placed on the upper surface of the mounting rod, and the mounting rod is raised to the height of the unit chamber by the hoisting unit. Next, the left and right positions of the mounting rod are adjusted by the adjusting means, and finally the unit is inserted into the unit chamber by the operator's hand. When pulling the unit out of the switchboard, after adjusting the position of the mounting rod in the same way as the insertion procedure, the unit is pulled out of the unit chamber by the operator's hand and placed on the top surface of the mounting rod (for example, patent Reference 1).

Japanese Utility Model Publication No. 7-9009

As described above, the conventional lifter has a structure in which the unit is finally lifted and removed directly by the operator's own hand, so the unit should be installed especially when the unit room is located at a high position on the switchboard. Every time it is taken in and out, it is necessary for the operator to ascend and descend using a stepladder etc. to the height of the unit room, which deteriorates the work efficiency.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lifter that allows a unit to be taken in and out without being lifted by the operator's own hand.

A lifter according to the present invention includes: a carriage provided with wheels; a support column provided on the carriage; a lifting operation unit provided on a side surface of the support column; and a side surface of the support column provided with the lifting operation unit. and a support member provided vertically movably on the opposite side, wherein the support member Ri telescopically der the arrangement direction of said supporting member and said struts and said lifting operation section, the support member relative to said post The lifter is composed of two first arms that can be moved up and down and a second arm that is attached to the first arm so as to be movable forward and backward in the longitudinal direction of the two first arms. A lifter used for insertion or withdrawal of an electric device, wherein the second arm is provided with a protrusion for hooking the electric device, the electric device is housed in an electric device room, and the second arm is moved from the electric device room to the electric device. Equipment When issuing, it is characterized in that it comprises abutting bent portion on the front surface of the electrical device.

In the lifter according to the present invention, the arm provided with the protrusion that is hooked to the electric device expands and contracts toward the switchboard, so that the operator can insert or pull out the unit directly without lifting the unit.

It is a side view of the lifter of Embodiment 1 of this invention. It is a top view of the lifter of Embodiment 1 of this invention. It is an enlarged view of the arm part of the lifter of Embodiment 1 of this invention. It is an enlarged view of the arm part of the lifter of Embodiment 1 of this invention. It is an enlarged view of the arm front-end | tip of the lifter of Embodiment 1 of this invention. It is a front view of a switchboard. It is the front view of the unit chamber of Embodiment 1 of this invention, and the enlarged view of the A section. It is the front view of the unit of Embodiment 1 of this invention, and the enlarged view of the B section. It is a perspective view of the side rail guide of Embodiment 1 of the present invention. It is a side view of the lifter and switchboard of Embodiment 1 of this invention. It is the expansion perspective view at the time of unit insertion of Embodiment 1 of this invention, and the enlarged view of the C section. It is a side view of the lifter and switchboard of Embodiment 1 of this invention. It is the front view of the unit chamber which inserted the unit of Embodiment 1 of this invention, and the enlarged view of D section. It is a side view of the lifter and switchboard of Embodiment 1 of this invention. It is an enlarged view of the expansion-contraction arm which hooked the unit of Embodiment 1 of this invention. It is a rear view of the lifter in Embodiment 2 of this invention. It is a top view of the lifter in Embodiment 2 of this invention.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings. 1 is a side view of a lifter according to a first embodiment of the present invention, FIG. 2 is a plan view of the lifter, FIGS. 3 and 4 are enlarged views of an arm portion of the lifter, and FIG. 5 is an enlarged view of a tip end of a second arm. 6 is a front view of the switchboard, FIG. 7 is a front view of the unit chamber according to the first embodiment and an enlarged view of the dashed line A part, FIG. 8 is a front view of the unit and an enlarged view of the dashed line B part, and FIG. FIG. 10 is a side view of the lifter and the switchboard, FIG. 11 is an enlarged perspective view of the unit when inserted, and an enlarged view of the dashed line C part, FIG. 12 is a side view of the lifter and switchboard, and FIG. FIG. 14 is a side view of the lifter and the switchboard, and FIG. 15 is an enlarged view of the second arm on which the unit is hooked. In addition, the same code | symbol in a figure has shown the same or an equivalent part.

As shown in FIG. 1, the lifter 100 includes a horizontal carriage 1 having front wheels 1 a and rear wheels 1 b which are wheels, and a column 2 erected vertically on the carriage 1. A slide base 3 is provided in front of the column 2 so as to be movable up and down. The slide base 3 is connected to a wire rope (not shown) via a pulley (not shown), and is a crank-shaped operation unit that is an elevating operation unit for winding or unwinding the wire rope behind the support 2. A vertical movement handle 4 is provided. As shown in FIG. 2, two first arms 6 that are first support members are provided in front of the slide base 3 via a rotation shaft 5. Further, a morning glory-shaped left / right moving handle 7 which is a left / right moving means for adjusting the left / right position of the first arm 6 is provided on one side surface of the rotating shaft 5. As shown in FIGS. 3 and 4, second arms 8 as second support members that are movable in the longitudinal direction of the first arms 6 are provided inside the first arms 6, respectively. As shown, each second arm 8 includes a protrusion 8a and a protrusion 8b for hooking a unit which is an electric device described later. Further, a bent portion 8c is formed at the rear of each protrusion 8a of each second arm 8 by bending each second arm 8 inward. Each second arm 8 is connected to a front / rear moving member 9 provided so as to straddle each first arm 6, and the front / rear moving member 9 includes a side surface handle 9 a on both sides and an upper surface handle 9 b on the upper surface. ing. The first arm 6 is provided with a stopper 10 for fixing the longitudinal movement member 9.

A switchboard 200 shown in FIG. 6 is provided with a unit room 11 which is a plurality of electric equipment rooms by partitioning the inside thereof. As shown in FIG. 7, a guide rail 12 including an L-shaped portion 12 a that is a first engagement portion is provided on the upper portion of the side wall of the unit chamber 11. The unit 13 to be inserted into the unit chamber 11 includes side rails 14 on both sides as shown in FIG. As shown in FIG. 9, the side rail 14 is provided with an I-shaped portion 14 a that is a second engaging portion that engages with the L-shaped portion 12 a of the guide rail 12. Further, a first notch 14b is provided in which a protrusion 8a provided on the second arm 8 is hooked. The bent portion 8c of the second arm 8 is configured to be in contact with the front surface of the unit 13 at a position where the projection 8a of the second arm 8 is caught by the first notch 14b. Further, the side rail 14 is provided with a second notch 14c on which the convex portion 8b of the second arm is hooked.

Next, the operation when the unit 13 is inserted into the unit chamber 11 arranged at a high position of the switchboard 200 using the lifter 100 of the first embodiment will be described. First, the projection 8 a of the second arm 8 in a contracted state is hooked on the first notch 14 b of the side rail 14 of the unit 13, and the unit 13 is loaded on the second arm 8. At this time, the convex portion 8b of the second arm is caught by the second notch 14c. Next, the lifter 100 is moved to the front of the switchboard 200, and the vertical movement handle 4 is rotated, so that the I-shaped portion 14a of the side rail 14 is engaged with the L-shaped portion 12a of the guide rail 12 as shown in FIG. The first arm 6 is raised to the height. Next, the left / right moving handle 7 is rotated to adjust the left / right position of the first arm 6 so that the unit 13 can be inserted into the unit chamber 11. Next, the stopper 10 is released and the side surface handle 9a of the forward / backward moving member 9 is pushed forward, the second arm 8 is moved forward as shown in FIG. 11, and the L-shape is shown as shown in FIGS. The I-shaped portion 14a is engaged with the portion 12a, and the unit 13 is inserted until the front surface of the unit 13 and the side plate front surface of the unit chamber 11 are in the same position. Finally, the vertical movement handle 4 is rotated to lower the first arm 6 until the protrusion 8a of the second arm 8 is disengaged from the first notch 14b, and then the side surface handle 9a of the longitudinal movement member 9 is pulled backward. The two arms 8 are moved backward to complete.

Next, an operation when the unit 13 is pulled out from the unit chamber 11 arranged at a high position on the switchboard 200 will be described. First, the lifter 100 is moved to the front surface of the switchboard 200, the vertical movement handle 4 is rotated, and the first arm 6 is raised to a height at which the I-shaped portion 14a is engaged with the L-shaped portion 12a. Next, the left / right moving handle 7 is rotated to adjust the left / right position of the first arm 6 and the stopper 10 is released. Then, the side surface handle 9a of the front / rear moving member 9 is pushed forward, and the second arm 8 is moved forward until the bent portion 8c of the second arm 8 contacts the front surface of the unit 13. After inserting the second arm 8 into the unit chamber 11, the vertical movement handle 4 is rotated to raise the second arm 8. After visually confirming that the protrusion 8a of the second arm 8 is caught in the first notch 14b of the side rail 14, the unit 13 is pulled out from the unit chamber 11 by pulling the side surface handle 9a backward. After the unit 13 is pulled out, the front / rear moving member 9 is fixed by the stopper 10 so as not to move, and the lifter 100 is moved from the front surface of the switchboard 200.

As described above, the lifter according to the first embodiment is provided with the second arm that is movable forward and backward with respect to the first arm, and the front and rear moving member that allows the second arm to move forward and backward. Since the second arm is moved back and forth by operating the moving member so that the unit is inserted into or pulled out from the unit chamber, the operator can insert or pull out the unit without directly lifting the unit. . Furthermore, since the second arm can be moved rearward, the movement in the narrow electric chamber is facilitated when the unit is transported, resulting in improved work efficiency.

In the first embodiment, the second arm is provided on the inner side of the first arm. However, for example, the same effect can be obtained by providing the second arm on the outer side or the upper side. The forward / backward moving member may also be provided on the lower side instead of the upper side as long as it extends over each first arm. Moreover, although the 1st engagement part demonstrated the case where the 2nd engagement part was I-shaped, each engagement part does not necessarily need to be a combination of this shape, for example, I-shapes, Obviously, any shape that can be engaged with each other, such as L-shapes, is obvious. Furthermore, in the first embodiment, the vertical movement handle has a crank shape, and the left and right movement handle has a morning glory shape. However, for example, the same effect can be obtained even with a spoke type or solid type handle.

In the first embodiment, since the unit chamber 11 is arranged at a high position on the switchboard 200, the second arm 8 can be expanded and contracted by the side surface handle 9a of the longitudinally moving member 9 when the unit 13 is inserted or pulled out. It was. On the other hand, when the unit chamber 11 is arranged at a low position as shown in FIG. 14, the second arm 8 can be moved back and forth by moving the upper surface handle 9b back and forth, and the same effect can be obtained. Can do.

By the way, when the unit 13 is arranged at a high position on the switchboard 200, the visibility of the projection 9 provided on the second arm 8 is poor and it is determined whether the projection 9 is caught on the side rail 14 of the unit 13. Is difficult. Therefore, in order to improve the visibility, it is desirable to color the protrusion 9 with, for example, red as shown in FIG.

Embodiment 2. FIG.
Since the lifter according to the first embodiment is provided with a left / right moving handle for adjusting the left / right position of the first arm on one side surface of the rotating shaft, work efficiency can be obtained when there is not enough work space on the side where the left / right moving handle is located. Becomes lower. On the other hand, the lifter according to the second embodiment of the present invention is provided with left and right moving handles on both side surfaces of the rotating shaft. That is, the first embodiment and the second embodiment are different in the way of providing the left / right moving handle, and the other configurations and operations are the same.

FIG. 16 is a side view of the lifter according to Embodiment 2 of the present invention, and FIG. 17 is a plan view of the lifter. 16 and 17, the same reference numerals are given to the same or corresponding parts as in FIGS. 1 to 15. Hereinafter, a second embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 13 and 14, the lifter 300 includes a horizontal carriage 1 having a front wheel 1 a and a rear wheel 1 b, and a column 2 erected vertically on the carriage 1. A slide base 3 is provided in front of the column 2 so as to be movable up and down. The slide base 3 is connected to a wire rope (not shown) through a pulley (not shown), and a vertical movement handle 4 for winding or lowering the wire rope is provided behind the support 2. Yes. Two first arms 6 are provided in front of the slide base 3 via a rotating shaft 5, and left and right moving handles 15 for adjusting the left and right positions of the first arm 6 are provided on both side surfaces of the rotating shaft 5. It has been.

As described above, since the lifter according to the second embodiment is provided with the left and right moving handles for adjusting the left and right positions of the first arm on both side surfaces of the rotating shaft, the left and right moving handles can be used even in an environment where the work space is not sufficient. As a result, the work efficiency can be improved.

1 dolly, 1a front wheel, 1b rear wheel, 2 struts, 3 slide base,
4 Vertical movement handle, 5 Rotating shaft, 6 First arm, 7 Left / right movement handle,
8 Second arm, 8a Protrusion, 8b Protruding part, 8c Bending part, 9 Back and forth moving member,
9a Side handle, 9b Top handle, 10 Stopper, 11 Unit room,
12 guide rails, 12a L-shaped part, 13 units, 14 side rails,
14a I-shaped part, 14b 1st notch, 14c 2nd notch,
15 Left / right moving handle, 100 lifter, 200 switchboard, 300 lifter

Claims (3)

A carriage with wheels,
A support column erected on the carriage;
Elevating operation part provided on the side surface of the column,
A support member provided to be movable up and down on the side surface opposite to the side surface of the support column provided with the lifting operation unit,
Wherein the support member Ri telescopically der the arrangement direction of said supporting member and said struts and said lifting operation unit,
The support member includes two first arms provided so as to be movable up and down with respect to the support column.
A lifter composed of a second arm mounted on the first arm so as to be movable back and forth in the longitudinal direction of the two first arms;
The lifter is a lifter used for insertion or withdrawal of electrical equipment,
The second arm is provided with a protrusion for hooking the electric device,
The electrical equipment is stored in an electrical equipment room,
The lifter according to claim 1, wherein the second arm includes a bent portion that comes into contact with a front surface of the electric device when the electric device is pulled out from the electric device chamber .   The lifter according to claim 1, further comprising a left-right moving unit that adjusts a left-right position with respect to an arrangement direction of the support member. Lifter according to claim 1 or 2 wherein the projection is characterized in that it is distinguishable colored.

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