JPH0712541Y2 - Scaffolding equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a scaffolding device that is used by being attached to a steel column in a construction site of a steel frame structure or a steel frame reinforced concrete structure.

[Conventional technology]

When performing welding work or bolt connection work by connecting steel columns to each other or connecting steel columns to beam steel frames, install a work machine such as an automatic welding machine or a scaffold to secure a work space for workers. Is required. As such a scaffold, the stationary type shown in Japanese Utility Model Laid-Open No. 59-8442 and Japanese Utility Model Laid-Open No. 61-71643 is used, but such a conventional one is complicated to mount and remove and has a heavy weight. However, since this scaffold is usually formed to be wider than the steel column, if it is directly attached to the steel column of the curtain wall construction portion, it will largely project from the outer peripheral surface.
As a result, when the curtain wall is installed, it is necessary to hang the panel member with a crane so that it does not come into contact with the scaffolding. is there.

If the scaffolding is removed during the construction of the curtain wall, this kind of inconvenience will not occur, but in order to do so, the work of connecting the steel frame and the construction of the curtain wall must be completely separated, and both can proceed simultaneously. It is inefficient because it cannot be done.

Therefore, in Japanese Utility Model Laid-Open No. 59-74235 and Japanese Utility Model Laid-Open No. 59-28148, a scaffolding plate is pivotally supported by a hinge structure on the side of a steel column, and the scaffolding plate is placed around the working position around this pivotal support. There is shown a rotary type which is capable of rotating and displacing.

According to this, the scaffolding plate is displaced to the outside opposite to the floor side of the pillar to be welded so as not to interfere with the welding work between the pillars and the mounting work of the outer wall (including the curtain wall) to the pillar. can do.

However, this rotary type is heavy because the hinge part has a large structure in terms of load characteristics, and since it has to be rotated every time according to the work place except the curtain wall construction part, it works compared to the stationary type. Inferior in nature. For this reason, there is a disadvantage that the stationary type and the rotary type must be used together at the work site.

[Problems to be solved by the device]

The object of the present invention is to solve the inconvenience that the stationary type and the rotary type of the conventional example must be used in combination, the mounting position of the scaffolding can be easily changed, and the mounting and dismounting of the scaffolding are easy and lightweight. It is to provide a scaffolding device that is easy to handle.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a ridge on one side in the longitudinal direction of the scaffolding plate to form the entire length of the side end as a locking portion, while the ridge of the scaffolding plate is formed on the outer periphery of the steel column. A support part is formed by the downward opening into which the scaffold plate is inserted and the support part on which the lower surface of the scaffold plate side end is placed immediately below, and the scaffold plate is horizontally slidably engaged with the steel column using this support part as a guide. However, the handrails provided so as to surround the outer periphery of the scaffolding plate other than the side that engages with the steel columns are formed by arranging a suitable number of unit handrails that are detachable and / or retractable. Is the gist.

[Action]

According to the present invention, the support is first attached to the steel column, and the protrusion on the side surface on the side of the scaffold is inserted into the downward opening of this support and pressed in parallel so that the scaffold is immediately below. The bottom surface of the plate-side end rests on the supporting portion, and the ridges of the scaffolding plate can engage the scaffolding plate horizontally and slidably with respect to the steel column using the supporting portion as a guide.

In this way, the scaffolding plate is slidably engaged with the steel column, and a large linear movement distance can be obtained. Can be moved. In this case, since the handrails provided on the scaffolding plate are formed by a suitable number of unit handrails that are detachable and / or retractable, when moving the scaffolding plate, if the handrails come into contact with the steel beams, etc. Can be removed or evacuated.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external perspective view showing an embodiment of the scaffolding device of the present invention, in which 1 is a steel column such as a prism or a column, and 2 is a scaffolding plate attached to the steel column 1.

First, the scaffolding plate 2 will be described. As shown in FIGS. 3 to 5, one end in the longitudinal direction of the frame member 3 formed by combining aluminum alloy angle members and channel members in a lattice shape. The outer side surface of the member 3a is projected upward to form a ridge 4, and the left and right ends of the end member 3a are close to each other.
Also, upper and lower through holes 5 are provided at three central locations.

As shown in FIG. 5, a hollow box member having a reinforcing partition is used for this end member 3a so as to have a certain level of strength. Formed.

Further, the frame member 3 is provided with a series of or a series of double handrail sockets 6 made of short cylinders at the joints of the horizontal members and the vertical members at the four corners and the intermediate position. The sockets 6 are provided on the outer circumference so as to mainly go out to the outside except the side where the end member 3a is located, and two end members 3a are provided inside.

On this frame member 3, a checker plate 7 having a skirting board 7a is placed by raising the peripheral edge at a right angle, leaving only one side in the longitudinal direction. The plate 7 has the same size as the frame member 3 and the width. The side without the tree 7a is aligned with the end member 3a, and the hole 7b provided in the plate 7 is located on the socket 6 provided in the end member 3a. The frame member 3 and the checker plate 7 in the scaffolding plate 2 are connected to each other by bolting the plate 7 to the vertical member of the frame member 3 with an eyebolt 8 so that they can be separated from each other as necessary. In the figure, 7c indicates a drain hole.

FIG. 10 shows a handrail 23 which is erected by inserting the lower end into the socket 6 and has an inverted U shape, and the lower end serves as an insertion portion 23a, and the through hole 2 is provided there.
3b is provided, and a horizontal rail 23c is attached in the middle.

Through holes 27 are also formed in the socket 6, and the holes 23b, 27
As shown in FIGS. 11 and 12, the joining pin 24 provided at the end of the chain 28
To be able to insert. The joint pin 24 has a bent portion 24a formed by pin-joining the tip thereof.

Further, a plurality of handrails 23 are provided on the side opposite to the end member 3a in the longitudinal direction of the scaffolding plate 2 in relation to the socket 6 (three in this embodiment).
Mount in parallel, and mount one on the end member 3a side and side (lateral direction).

Fig. 2 shows a mounting bracket as a bearing that is attached to the steel column 1 side.
In FIG. 10, a reinforcing bracket is provided with an angle member 13 so that a downward opening is formed in a mounting substrate 12 (two vertical type members in the figure) that are fixed to the steel column 1 with bolts 11a and nuts 11b.
The angle member 13 forms a horizontal groove portion 15 of a downward opening into which the ridge 4 of the scaffolding plate 2 is inserted, as an upper support portion.

Similarly, the mounting substrate 12 is provided with a short side portion of the unequal side angle member under the mounting substrate 12 so as to face the angle member 13.
The horizontal bracket 16 on the long side to support bracket 14b.
The horizontal plate 16 serves as a lower support member for supporting the lower surface of the end 3a, which is the side end of the scaffolding plate 2, for a required length, and the horizontal groove portion 15 and the horizontal portion 17 are provided. In combination with the above, the support portion of the scaffolding plate 2 was formed on the outer circumference of the steel column 1.

The horizontal portion 17 projects more than the opening width of the horizontal groove portion 15, that is, the horizontal plate 16 is wider than the angle member 13, but a flange 18 is attached to the outside of the angle member 13, and the flange 18 and the horizontal plate A vertical through hole 19 is formed at 16 and.

In the figure, 20 is inserted into the through hole 19 and the screw part at the tip is the screw hole 19
It is a rod screwed to a, and a small small hole is formed on the upper surface of the angle member 13, and a nut can be attached to this small hole to form a screw hole 21 into which a set screw 22 protruding inward can be screwed. To do so.

Next, the usage will be described.

As shown in FIGS. 2 and 6, bolts are provided on the outer circumference of the steel column 1.
The mounting bracket 10 is provided in advance with 11a and a nut 11b. In this case, the bolt 11a is welded to the steel column 1.

With respect to such a mounting bracket 10, the end member 3a of the scaffolding plate 2 is slanted as shown by the chain line in FIG. 7 so that the ridges 4 can be inserted into the horizontal groove portion 15 first, and then the whole is vertical. In other words, if it is installed so as to raise a shoji screen, the lower surface of the end member 3a can be entirely placed on the horizontal portion 17. In this example, the horizontal groove 15 is formed by the angle member 13, but it may be a channel member. Further, the horizontal support portion 17 is also formed of the angle member 13, but as described above, if the member 3a is installed so as to raise a shoji, a channel material may be applied and an upward opening may be used instead of the horizontal portion. Incidentally, according to the shoji construction method of this example, it is convenient to attach and detach the scaffolding plate from the front of the mounting bracket 10, but instead of the horizontal plate 16 an upward opening is formed and the lower end member of the scaffolding plate is made into this upward opening. The scaffolding plate can be attached from the side of the mounting member so as to be engaged.

As a result, the scaffolding plate 2 is supported so that the end member 3a which is the side end thereof is vertically sandwiched between the angle member 13 of the mounting member 10 and the horizontal plate 16.

The lower part of the end member is pressed against the mounting member 12 by the weight of the scaffolding plate, and the angle member 13 supports the upward force applied to the upper part. Therefore, when the mounting substrate 12 is vertical, the end member 3a does not come off from the mounting bracket 10, but as shown in FIG. 8, the through hole 5 of the end member 3a and the through hole 19 on the mounting bracket 10 side are aligned with each other. Then, the rod 20 is inserted into these through holes 5 and 19, and the lower end is screwed into the screw hole 19, so that the scaffold plate 2 is fixed to the mounting member 10. The rod may be fixed by forming a keyhole instead of the screw hole 19, and providing a projection at the tip of the rod that can be inserted through the keyhole and winding a spring above the rod. By doing so, the rod can be fixed and released by pressing and rotating the rod, which facilitates the operation. If necessary, the set screw 22 holds the head of the ridge 4 to prevent rattling.

Insert the end of a horizontal U-shaped handrail 23 as shown in FIG. 10 into the socket 6 to the scaffolding plate 2, and fix one end with a pin 24 fixed to the scaffolding plate with a chain and set up several handrails 23 side by side. .

An insertion portion 23a of a handrail 23 is inserted into the socket 6 of the scaffolding plate 2 and several handrails 23 are arranged side by side. This handrail 23 has a through hole 23
It is possible to prevent slipping out by aligning b and 27 and penetrating the joining pin 24 therethrough, and projecting the bent end portion 24a of the pin 24 at a right angle.

Further, the scaffolding plate 2 is attached so as to face each other with the steel column 1 in the middle, and the length thereof is larger than the width of the steel column 1 and the end portion thereof protrudes larger than the steel column 1. The transfer plate 25 is detachably hung between the parts.

In this way, as shown in FIG. 9, the scaffolding plate 2 including the bridge plate 25 around the steel column 1 is provided in a U-shape to perform the work.

Then, when welding work such as connecting the steel columns 1 to each other or connecting the steel beams 26 to the steel columns 1 is completed and the curtain wall or the like is to be attached to the outer surface of the frame, the bridge plate 25 is removed and the scaffold plate 2 is attached. It is slid horizontally with respect to the steel column 1 so that it can be retracted inside the skeleton.

For this moving work, the rod 20 may be removed, and the end member 3a may be slid on the horizontal plate 16. At this time, the angle member 13 may move the ridge 4
By engaging with, it acts as a guide during the movement. If the handrails are obstructed due to the construction of steel beams during the movement of the scaffolding plate, the handrails must be removed in this embodiment, but the work becomes easier if the handrails can be raised and lowered.

After the slide is completed, the through hole 5 of the mounting member 10 is aligned with the through hole 5 at the end of the end member 3a. Therefore, the rod 20 is attached and fixed again.

After the slide is completed, the through hole 5 of the mounting member 10 is aligned with the through hole 5 of the end member 3a. Therefore, the fixing rod 20 is inserted again and fixed.

By the way, in the case where only the steel columns 1 are joined together and the steel beams 26 need not be taken into consideration at all, three handrails 23 are erected in parallel on the side opposite to the end member 3a of the scaffold plate 2. .

On the other hand, when the steel beam 26 and the steel column 1 are joined, and when the steel beams 26 are also joined to each other, the handrail 23 at the portion where the steel beam 26 is located is removed and the beam 26 is removed. Let it pass. At this time, the removed portion of the handrail 23 closes the opening by hanging a chain between the remaining handrails 23 as shown in FIG.

In addition, a handrail is attached to the steel beam 26 to slide the scaffolding plate 2.
If it hits the handrail 23, the handrail 23 should be temporarily removed, and then reattached after the movement.

Although the handrail 23 in this example is attachable to and detachable from the socket 6, it may be movable up and down with respect to the scaffolding plate, or may be a tilting type that falls down with respect to the outside of the scaffolding plate. Also, these eclectic types may be used.

Note that the relationship between the scaffolding plate 2 and the steel column 1 is determined by which position of the end member 3a is used to fix the scaffolding plate 2, but the scaffolding plate 2 can be freely slid in either the left or right direction. It is also possible to increase the number of the through holes 5 and lock them in multiple stages.

[Effect of device]

As described above, the scaffolding device of the present invention can exhibit the conventional stationary type and rotary type functions by itself. Further, the scaffolding plate can be easily coupled by a method of inserting a shoji into the support part on the side of the steel frame. Moreover, since the scaffolding plate is supported by only one mounting bracket serving as the support part, it is a large scale. In addition, it is easy to attach and remove and easy to handle.

In this way, since the scaffolding plate slides with respect to the steel columns, a large movement can be obtained, and even if there is a steel beam during this movement, it is possible to deal with it by appropriately removing the handrail, and only joining the steel columns together. It can also be used for joining steel columns and steel beams.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a scaffolding device of the present invention, FIG. 2 is a perspective view of a mounting bracket for a scaffolding plate, FIG. 3 is a partially cutaway plan view of the scaffolding plate, and FIG. 5, FIG. 5 is a vertical side view of the same as above, FIG. 6 is a front view of a mounting bracket, FIG. 7 is a vertical sectional view taken along the line aa of FIG. 6, and FIG. 8 is a vertical sectional view taken along the line bb of the same.
FIG. 9 is a plan explanatory view showing the installation state of the scaffolding device of the present invention, FIG. 10 is a front view of a handrail, FIG. 11 is a plan view in which a joint pin of the handrail is partially cut away, and FIG. It is a figure. 1 …… Steel column, 2 …… Scaffolding plate 3 …… Frame material, 3a …… End member 4 …… Slits, 5 …… Through hole 6 …… Socket, 7 …… Checker plate 7a …… Baseboard, 7b …… Hole 7c …… Drain hole, 8 …… Eye bolt 9 …… Projection, 10 …… Mounting bracket 11a …… Bolt, 11b …… Nut 12 …… Mounting board, 13 …… Angle material 14a, 14b …… Bracket , 15 Horizontal groove 16 Horizontal plate, 17 Horizontal plate 18 Flange, 19 Through hole 20 Fixing rod, 21 Screw hole 22 Set screw, 23 Handrail 23a …… Insertion part, 23b …… Through hole 23c …… Horizontal bar, 24 …… Joining pin 24a …… Bent part, 25 …… Transfer plate 26 …… Steel beam, 27 …… Through hole 28 …… Chain

Claims (1)

[Scope of utility model registration request] In the longitudinal direction of the scaffolding plate, a ridge is provided on one side surface to form the entire length of the side end as a locking portion, while downwardly inserting the ridge of the scaffolding plate to the outer periphery of the steel column. A support part is formed by the opening and a support part on which the lower surface of the scaffold plate side is placed immediately below, and the scaffold plate is slidably engaged horizontally with the steel column using the support part as a guide. Scaffolding formed by arranging an appropriate number of unit handrails that are detachable and / or retractable and that are provided so as to surround the outer periphery other than the side that engages with the steel column apparatus.