JPH0524764Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention can be used to support floor forms when pouring concrete into floor slabs, or to support formwork for forming slopes at breakwaters, etc. In particular, in order to easily connect and fix and separate the side beams and main beams, the main beam supporting the formwork should be able to slide freely in the longitudinal direction of the main beam, and The present invention relates to a shoring structure in which a length-adjustable side beam is attached to the main beam so that it can be inserted and removed from above, and the side beam is connected and fixed to the main beam via a fixing mechanism.

(Prior Art) A conventional shoring of this type was constructed as shown in FIG. 10. FIG. 10 is an overall exploded perspective view of a conventional shoring structure, in which 01 is a main beam, 02 and 02 are side beams, and these side beams 02 and 02 are attached to both ends of the main beam 01, respectively. It is attached to be slidably displaceable in the longitudinal direction and to be inserted and removed from above, and is connected and fixed via a fixing mechanism 03.

The fixing mechanism 03 includes a wedge 04 attached to the main beam 01, wedge holes 05 formed at two locations at a predetermined interval in the longitudinal direction of the main beam 01 and into which the wedge 04 is inserted, and side beams 02, 02. Wedges 04 are inserted into the wedge holes 05 at predetermined intervals in the respective longitudinal directions.
When the side beam 02 is inserted into the main beam 01 and positioned at a predetermined length position, the opposite wedge hole 0 is inserted into the main beam 01.
By driving the wedge 04 across the long hole 06 and the long hole 06, and forcibly driving the wedge 04 into the long hole 06 to connect and integrate the side beam 02, each of the side beams 02 and 02 becomes a main beam. It is configured to be connected and fixed to 01.

(Problem to be solved by the invention) However, in the case of the conventional example having such a configuration, the side beam 02 is replaced by the main beam 0.
1, it is necessary to insert the wedge 04 while aligning the relative positions of both the elongated hole 06 formed in the side beam 02 and the wedge hole 05 formed in the main beam 01, Wedge 0
There was a drawback that it required time and effort to insert No. 4.

In addition, the long hole 06 formed in the side beam 02
The wedge 04 and the side beam 02 are integrated by pushing and expanding them in a direction perpendicular to their longitudinal direction, thereby connecting and fixing both beams 01 and 02. Therefore, the longitudinal direction of the elongated hole 06 It is not possible to increase the length, and for strength reasons, the long hole 06 has to be formed in two separate locations as described above.
For example, when shoring that has been delivered in a shortened state is extended and used at the site, the wedge 04 must be replaced in order to use a different elongated hole 06, and the shoring must be adjusted to a predetermined length. There was a drawback that it required time and effort.

The present invention was developed in view of the above circumstances, and it is possible to easily attach a connecting device such as a wedge to easily connect and fix the side beam, regardless of the amount of expansion and contraction of the side beam with respect to the main beam. The purpose is to make it possible.

(Means for solving the problem) In order to achieve this purpose, the present invention
In the shoring described at the beginning, a fixing mechanism is attached to one connected member attached to the side beam so as to be freely displaceable in the longitudinal direction thereof, and the fixing mechanism is attached to the main beam, and the fixing mechanism is attached to the main beam so that the side beam is inserted into the main beam. a locking part that prevents displacement of the connected member in the longitudinal direction of the side beam in the state of and a connector that connects and fixes the connector by pressing it from above.

(Function) According to the above configuration, the side beam is inserted and mounted from above the main beam, and the wedge-fitting member or the member to be connected, such as a bolt, is engaged with the plate-shaped wedge-hole-formed plate attached to the side beam. Attach to the stop part and position the connected member below the point where the connecting tool such as a wedge or nut contacts the main beam, or temporarily fix the connecting tool to the connected member. In this state, the side beam can be adjusted to the desired length by sliding it against the main beam, and then connected and fixed by pressing the side beam against the main beam from above by driving a wedge or tightening a nut. can.

(Example) Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

FIG. 1 is an overall exploded perspective view of an embodiment of the present invention, and FIG. 2 is a side view of essential parts showing a state in which both beams are connected. In these figures, 1 is a main beam, 2 is a side beam, and this side beam 2 is attached to each end of the main beam 1 so that it can be slidably displaced in the longitudinal direction, and can be inserted and removed from above. , are connected and fixed via a fixing mechanism 3. Note that in FIG. 1, only one side beam 2 is shown.

Grooves 4 and 5 with upward openings are formed on the upper surface of each of the main beam 1 and the side beam 2, and as will be described later, when a veneer 6 as a floor formwork is directly received without using a joist. A thick corner is inserted across the grooves 4, 5, and 5, and the veneer 6 can be fixed to the thick corner by nailing.

A steel rod 8 bent into a truss shape is integrally connected to each side of the groove forming member 7 forming the groove 4 of the main beam 1 by welding.
A flat support plate 9 is integrally connected to the support plate 9 by welding through the support plate 9, and the support plate 9 allows the entire shoring to be stably placed in an upright position during storage or when placed on a truck bed for transportation. It is constructed so that it can be easily placed and handled.

Further, on each of both sides of the main beam 1 in the longitudinal direction, an intermediate support member 10 is provided between the groove forming member 7 and the support plate 9, extending over the steel bars 8, 8.
are connected together by welding. The intermediate support members 10, 10 are also configured to serve as a receiving portion of a forklift.

Each of the intermediate support members 10 and 10 is formed by bending a sheet metal in a concave shape, and the intermediate support member 1
Locking portions 13 are formed at predetermined locations on both end sides of each of the main beams 1 and 10 to prevent displacement of the main beam 1 in the longitudinal direction beyond a predetermined value by inserting a wedge fitting member 12 having a wedge hole 11 therethrough. There is.

Each of the side beams 2, 2 has the groove 5.
A guide member 16 to which the wedge fitting member 12 is attached is integrally connected to the lower part of the groove forming member 14 by welding via a single steel rod 15 bent into a truss shape.

As shown in the cross-sectional view of FIG. 3, the guide member 16 is formed by bending a sheet metal into a rectangular tube shape, and has a gap 17 formed on its downward surface so that the wedge-fitting member 12 projects downward. .

The wedge fitting member 12 is formed in a T-shape, and the upper locking piece portion 12a is fitted into the guide member 16, and the wedge fitting member 12 is inserted along the longitudinal direction of the guide member 16 along the gap 17. It is configured so that it can be displaced in the direction.

With the above configuration, the side beam 2,
2 are inserted from above and placed and supported on the main beam 1, and both side beams 2, 2 are slid in the longitudinal direction of the main beam 1 to match the span at the location where the shoring is used, and the overall length is is adjusted to a predetermined length, and in that state, drive the wedge 18 into the wedge hole 11, and make the contact point a reaction force point by contacting with the downward surface of the intermediate support member 10,
The side beams 2, 2 are inserted through the wedge fitting member 12.
Press down the side beams 2, 2 to the main beam 1 from above to connect the side beams 2, 2.
can be connected and fixed to main beam 1.

The wedge 18 is attached to the intermediate support member 10 of the main beam 1 via a chain 19.

The one wedge fitting member 12, the locking portion 13 formed on the main beam 1, and the wedge 18
Accordingly, the fixing mechanism 3 for connecting and fixing the side beam 2 to the main beam 1 is configured.

At one end in the longitudinal direction of each of the side beams 2, 2, as shown in the enlarged side view of the main part in FIG. Receiving metal fitting 21 equipped with 21a
is detachably attached via a connecting pin 22, and the attachment height can be changed.

That is, as shown in the cross-sectional view in FIG. Five fitting portions 24 are formed at predetermined intervals in the vertical direction, and on the other hand,
A connecting frame body 25, which is a sheet metal bent into a convex shape, is integrally connected to the receiving metal fitting 21 by welding, and the fitting portions 24 are fitted into each of five places in the vertical direction of the connecting frame body 25. A convex portion 26 is formed.

As a result, the convex portion 2 is connected to the fitting portion 24...
By changing the position where 6... is fitted inside, it can be adapted to various construction forms.

That is, as shown in the side view of FIG. 6, the formwork locking part 21a is positioned higher than the upper surface of the side beam 2, and the plywood 6 serving as the floor formwork is received and supported via the joists 27. , as shown in the side view of the main part in FIG. In the case where the plywood 6 is directly received and supported by nailing the plywood 6 to the crosspieces fitted into the crosspieces 5 and 5, as shown in the side view of the main part in FIG. 21a is positioned lower than the upper surface of the side beam 2 to directly receive and support the veneer 6 while forming a beam haunch (slab haunch).

FIG. 9 is a sectional view of the main parts of another embodiment of the fixing mechanism 20, in which a bolt 28 is used in place of the wedge fitting member 12, a nut 29 is used in place of the wedge 18, and the bolt 28 is used in place of the wedge fitting member 12. By fitting the head portion of the nut 29 into the guide member 16 and tightening the nut 29, the nut 29 is brought into contact with the downward surface of the intermediate support member 10, and by using the contact point as a reaction force point, the side beam 2 is attached to the main beam 1. The side beam 2 is connected and fixed to the main beam 1 by pressure contact with the main beam 1 from above.

As for the configuration in which the wedge fitting member 12 of the above embodiment is attached to the side beam 2 so as to be freely displaceable in the longitudinal direction, the wedge fitting member 12 is attached to the side beam 2 in the T position as described above.
The guide member 16 of the side beam 2 is configured in a letter shape.
For example, the guide member 1 is not limited to the one that fits inside the guide member 1.
On the other hand, the wedge fitting member 12 is made of a flat plate, and a downward fold is formed on the upper end side, and the folded part is fitted into the folded part on the guide member 16 side. Various modifications are possible, such as configuring
Items that can be attached to the side beam 2 so as to be freely displaceable in the longitudinal direction in order to connect and fix the side beam 2 to the main beam 1, such as the wedge fitting members 12 of various configurations as described above and the bolts 28 of the other embodiments described above. These are collectively referred to as connected members 12 and 28.

In addition, a wedge 18 or a nut 29 is attached to the connected members 12 and 28 as described above to press the side beam 2 to the main beam 1 from above.
These are collectively referred to as connectors 18 and 29.

(Effects) As described above, according to the present invention, a connecting tool is attached to one connected member that is slidably attached to a side beam and is locked to a locking part of a main beam. The fixing mechanism is configured to connect and fix both beams by simply scanning the connector, using the point of contact with the main beam as a reaction force point, and pressing the side beam against the main beam via the connected member. Therefore, by sliding the side beam while the connected member is locked in the locking part, the length can be adjusted to any desired length.
Both beams can be connected and fixed simply by operating the connecting tool for each member to be connected, and regardless of the amount of expansion and contraction of the side beam with respect to the main beam, connecting devices such as wedges can be easily attached and the connecting and securing operation can be performed. It became easy to do.

Furthermore, even if the shortened state at the time of delivery or removal is extended to a longer length for use on site, replacing the wedge eliminates the need to separate the connecting tool from the connected members, making it easier to connect the connected members. It can be extended for a long time while still attached, making it extremely easy to perform a series of operations from sliding the side beams to expand and contract them to connecting and fixing them to the main beam.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing a shoring structure according to an embodiment of the present invention, Fig. 2 is a side view of main parts showing a connected state, Fig. 3 is a sectional view taken along the line - The figure is an enlarged side view of the main part of Fig. 2, and Fig. 5 is an enlarged side view of the main part of Fig. 4.
6 is an overall side view showing the construction example, FIGS. 7 and 8 are side views showing the main parts of the construction example, and FIG. 9 is the fixing mechanism. FIG. 10 is a side view of main parts showing another embodiment, and is an overall perspective view showing a conventional shoring structure. 1...Main beam, 2...Side beam, 6
...Plywood as formwork, 12...Wedge insertion member as connected member, 13...Locking portion, 18...
...Wedge as a connecting tool, 20...Fixing mechanism, 2
8... Bolt as a member to be connected, 29... Nut as a connecting tool.

Claims (1)

[Claims for Utility Model Registration] A side beam for adjusting the length is attached to the main beam supporting the formwork so as to be slidable in its longitudinal direction and can be inserted and removed from above, A shoring structure in which side beams are connected and fixed via a fixing mechanism, the fixing mechanism being provided on one connected member attached to the side beam so as to be freely displaceable in the longitudinal direction thereof, and on the main beam, a locking part that prevents displacement of the connected member in the longitudinal direction of the side beam when the side beam is inserted and placed on the main beam; A shoring structure comprising: a connector for connecting and fixing the side beam to the main beam by pressing the side beam into contact with the main beam from above using the contact point as a reaction force point.