JP3143014B2 - Temporary structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary structure constructed on a civil engineering / construction site such as a bridge for temporarily supporting a bridge.

[0002]

2. Description of the Related Art Conventionally, in a temporary structure such as a shoring for temporary support of a bridge, which is constructed on a civil engineering site or a construction site, pillars which are erected at a plurality of positions (for example, positions of vertexes of a rectangle). When connecting vertically, for example, the lower end of the upper column is inserted into the joint protruding from the upper end of the lower column, and a pin is inserted through the upper column and the joint, or the joint is connected to the lower column. A structure is used in which the pin is inserted into both the upper column and the joint, and the pin is inserted between the lower column and the joint, and the pin is inserted between the upper column and the joint.

[0003] At each of the upper and lower ends of each support, a horizontal connection and a brace connecting diagonally are connected at the same height position as the adjacent support. At the connection point, a connection fitting having two upper and lower pin insertion holes is provided,
At both ends of the horizontal joint and both ends of the brace, connection fittings each having one pin insertion hole are provided.

[0004]

The pillar of this conventional temporary structure is provided with a connecting bracket having a pin hole for vertical connection and two pin insertion holes at only the lower end or at both upper and lower ends. Therefore, the configuration is complicated.

Further, when extending the temporary structure upward, it is necessary to align the pin insertion hole of the joint with the pin insertion hole of the column. However, the column is inserted with the pin insertion hole of the joint hidden by the column. It is necessary to perform positioning while rotating, which is disadvantageous in improving the workability of the construction work.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a temporary structure capable of simplifying a connection structure of columns and improving workability of construction and disassembly. It is assumed that.

[0007]

The temporary structure according to the present invention comprises:
In order to achieve the above-mentioned object, in a temporary structure having a horizontal connection and a brace connecting the plurality of columns and the plurality of columns arranged horizontally, a pin insertion hole for horizontal connection is provided at an upper end and a lower end of the column. A connecting metal fitting is provided, and has two upper and lower pin insertion holes corresponding to the pin insertion holes of the lower column and the upper column of the columns vertically connected to both ends of each horizontal joint. A connection fitting is provided.

[0008]

According to the above construction, as shown in FIG. 1, the pillars 2 which are vertically connected to each other (in FIG. 1, the base jacks 1 are provided on the ground instead of the lower pillars).
For example, the lower end of the upper column 2 is inserted into a joint 17 protruding from the upper end of the lower column 2 (base jack 1), and the lower pin insertion hole 18 and the lower pin insertion hole 18 of the horizontal joint 3 are connected. The lock pin 9 is inserted into the upper pin insertion hole 7 of the connection fitting 8 provided at the upper end of the support (base jack 1), and the upper pin insertion hole 18 of the connection fitting 19 of the horizontal joint 3 and the upper support 2 are connected. The lock pins 9 are inserted into the lower pin insertion holes 7 provided at the lower ends of the connection fittings 8 provided at the lower ends of the first and second connectors, respectively.

Therefore, between the upper and lower struts 2 (or the struts 2 and the base jack 1), which is conventionally required.
(Pin) A pin hole and a pin inserted in the radial direction to prevent mutual removal can be omitted.

[0010] Further, according to the above configuration, one horizontal joint 3 is connected to the upper and lower columns 2 (four columns in total) at both left and right ends, so that the structural strength is improved. .

Further, in the present invention, when the lock pin 9 inserted into the pin insertion hole 7 of the support column 2 is supported so as to be rotatable and to be able to protrude and retract from the pin insertion hole 7, the worker can use the lock pin. 9 is not required to be carried, which is advantageous in enhancing the safety of the construction work of the temporary structure. In addition, since the lock pin 9 is previously positioned in the pin insertion hole 7 of the connecting fitting 8 of the support 2, the support By simply aligning the pin insertion holes 18 of the horizontal joint 3 with the pin insertion holes 7 and pushing the lock pins 9 in, the support 2 and the horizontal joint 3 can be easily connected.

Conversely, as shown in FIG. 4, the same operation as described above can be obtained even if the pins 20 having the above functions are provided in the connecting metal 19 of the horizontal joint 3. Therefore, in any of the above cases, in this case, the worker does not need to carry the lock pin 9 (20) at the time of construction and disassembly, which is advantageous in improving safety and workability.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A temporary structure according to an embodiment of the present invention will be described in detail with reference to the drawings.

In a temporary structure according to an embodiment of the present invention shown in the perspective view of FIG. 3, four base jacks 1 are arranged at vertices of a substantially square in plan view, and each base jack 1
Are formed in order, and four columns are formed by sequentially connecting the columns 2 upward, and are adjacent to the connection surface between the base jack 1 and the columns 2 and the connection surface of the columns 2 at positions corresponding to the sides of the square. The base jacks 1 or the columns 2 are connected by horizontal joints 3, and the middle part of each horizontal joint 3 and the lower end of each base jack 1 or column 2 are connected by elastic braces 4 or fixed length braces 6. The horizontal jacks 5 connect the base jacks 1 or the struts 2 located at the opposite corners of the square.

As shown in the perspective view of FIG. 2, the upper end of the base jack 1 is provided with two upper and lower pin insertion holes 7 for connecting horizontal joints and connecting braces in four directions at intervals of 90 ° from each other. A connection metal fitting 8 having a U-shaped cross section is provided, and a lock pin 9 inserted into the pin insertion hole 7 of each port is rotatable on each of the metal fittings 8 and is supported so as to be able to protrude and retract into the pin insertion hole 7. Is done.

Each lock pin 9 is formed with two circumferential grooves 10 at an appropriate distance in the axial direction thereof.
A vertical groove 11 perpendicular to both circumferential grooves 10 is formed, and a locking pin 13 fixedly supported on one surface of each connection fitting 8 via a ring 12 is inserted into the vertical groove 11 to thereby lock the lock pin 9.
Can be advanced and retracted between an insertion position at which the pin is inserted into the pin insertion hole 7 and a retreat position withdrawn from the pin insertion hole 7. Further, the lock pin 9 is rotated about its axis at the insertion position or the retraction position, and the locking pin 13 is selectively inserted into one of the peripheral grooves 10 so that the lock pin 9 is inserted or retracted. It can be held in position.

Each lock pin 9 is provided with a handle 14 to facilitate its operation. A flange-like connecting plate 16 extending in the horizontal direction is fixed to the lower side of the connecting bracket 8, and a pin insertion hole for connecting the horizontal brace 5 (see FIG. 3) to the connecting plate 16. 15

As shown in the exploded front view of FIG.
At the lower end of the base, connecting bracket 8 is connected to base jack 1 upside down
Further, the connecting plate 16 is fixed, and the connecting fitting 8 and the connecting plate 16 are fixed to the upper end of each support column 2 in the same manner as the base jack 1. However, the connecting plate 16 at either the upper end or the lower end of each column 2 may be omitted.

Further, the base jack 1 and each support 2
A joint 17 is provided at the upper end so as to protrude upward from the upper end. As shown in FIG. 1, a plate-shaped connection metal fitting having two upper and lower pin insertion holes 18 corresponding to the respective upright and lower columns 2 or the respective pin insertion holes 7 of the base jack 1 at both ends of each horizontal joint 3. After the lock pin 9 is located at the retreat position, the lower pin insertion hole 18 of the connection fitting 19 is inserted into the base jack 1.
The horizontal joint 3 is connected to the base jack 1 by aligning it with the pin insertion hole 7 on the upper side of the connection fitting 8 and pushing the lock pin 9 into the insertion position.

Thereafter, the lock pin 9 on the lower side of the connection fitting 8 at the lower end of the column 2 is positioned at the retracted position, and then the lower end of the column 2 is inserted into the joint 17 and the column 2
The upper part of the connecting fitting 19 of the horizontal joint 3 is inserted into the connecting fitting 8 of the column 2 by aligning the position of the connecting fitting 8 of the horizontal joint 3 with the position of the connecting fitting 19 of the horizontal joint 3.

What is important here is that the connecting fittings 8 of the support 2 and the connecting fittings 19 of the horizontal joint 3 are both visible, so that the positioning of the support 2 around the axis is performed by the two connecting fittings 8 and 19. Can be done very easily and quickly by
Thereby, workability in constructing the temporary structure is significantly improved.

After the alignment, the connecting bracket 8 of the column 2 is
After the upper part of the connecting fitting 19 of the horizontal joint 3 is inserted into the connector, the lower locking pin 9 of the connecting fitting 8 at the lower end of the column 2 is moved to the insertion position.
And the support 2 are connected.

Similarly, the upper column 2 can be further added to the column 2. In this way, by previously holding the lock pin 9 on the connecting metal member 8 arranged on the column 2, for example, This eliminates the need for the operator to carry the lock pin 9, which is advantageous in improving safety, particularly in work at high places.

Further, it is not necessary for the operator to take out the lock pin 9 from the bag and insert it into the connecting fittings 8 and 19. Moreover, the lock pin 9 is rotated and pushed by a simple operation. Since it can be inserted into the connection fittings 8 and 19, workability is significantly improved.

Further, one horizontal tether 3 is provided at each of the left and right ends thereof with a lower support 2 and an upper support 2 or, as shown, a base jack 1 and a support 2 connected to the upper part thereof (total). Since it is connected to the four columns or the base jack 1), the structural strength is improved.

Needless to say, it is not necessary to form a pin insertion hole for inserting a pin for connecting the base jack 1, the column 2 or the joint 17 fixed thereto, and the pin insertion hole is omitted. By
The structure of the base jack 1 and the support 2 can be simplified, and their strength can be increased.

In this embodiment, the elastic brace 4 or the brace 6 and the horizontal joint 3, the elastic brace 4 and the lower part of the base jack 1, the fixed-length brace 6 and the lower part of the column 2, the connecting plate 16 and the horizontal brace 5 are respectively provided. Pin or bolt
Although the connection is made by using nuts, since these connection structures are not directly related to the present invention, detailed description thereof is omitted here.

The procedure for adding the support 2 to the upper side is not limited to the above-described procedure. For example, the lower end of the support 2 is first inserted into the joint 17 of the base jack 1 and the connecting fitting 8
After the alignment, the horizontal joint 3 is connected to the connecting metal fittings 8 of the two.
The lock jack 9 may be used to connect the base jack 1, the support 2, and the horizontal joint 3. In this case, the connection fitting 8 of the base jack 1 and the connection fitting 8 of the support column 2 are aligned. Since this positioning can be performed while viewing both the connection fittings 8, simply as described above, And it can be performed quickly.

Further, at the time of dismantling work, there is no need to remove and collect the lock pin 9 from the connection fitting 8, so that the workability and safety of the dismantling work can be improved. In the embodiment shown in FIGS. 1 to 3, the connecting bracket 8 having a U-shaped cross section is disposed on the side of the column 2, while the connecting bracket 8 having the U-shaped section is provided at both ends of the horizontal joint 3. Although the matching plate-shaped connection fittings 19 are arranged, the arrangement may be reversed.

That is, FIG. 4 is a perspective view of a main part of another embodiment according to the present invention. In the configuration shown in FIG. 4, the connecting fitting 8 provided on the column 2 in the above-described embodiment is connected to the horizontal joint 3. On the other hand, plate-like connecting metal members 19 provided at both ends of the horizontal joint 3 are protruded at equal intervals around four positions around the column 2. A temporary structure can be constructed in a similar operation procedure.

FIG. 5 is a perspective view of another embodiment according to the present invention. In this embodiment, a wedge 91 is arranged on the connection fitting 8 of the column 2 in place of the lock pin 9. By strongly pushing the wedge 91 over the pin insertion hole 7 of the connection fitting 8 and the pin insertion hole 18 of the connection fitting 19 of the horizontal joint 3, the column 2 and the horizontal joint 3 are connected. A projection 91a is provided at the tip of the wedge 91, and the wedge 91 is connected to the connection fitting 8 at the standby position.
I try to prevent it from falling off more.

[0032]

As described above, according to the present invention, the upper and lower columns are connected to each other via the horizontal connecting metal fittings, and the joint for connecting the upper and lower columns and the upper and lower ends of the column are conventionally used. By omitting the pin holes formed in one or both of the above, the configuration of the column can be simplified and the strength of the column can be increased.

When connecting the upper and lower struts, it is necessary to adjust the position of the upper bracket connecting bracket with respect to the lower pillar and the horizontal connecting bracket around the axis.
This alignment can be performed easily and quickly while visually checking both the connection fittings of the horizontal connection and the connection fittings of the upper column, so that workability can be improved.

Further, since the upper and lower columns are directly connected to the horizontal link, the strength of the connection between the horizontal link and the upper and lower columns can be increased. In the present invention, when a pin inserted into the pin insertion hole of each port is rotatably supported by the connection fitting of the above-mentioned column and is supported so as to be able to protrude and retract into the pin insertion hole, the operator can put the pin into a bag or the like. Since it is not necessary to carry the device in the column, it is advantageous for enhancing the safety of work.In addition, since the pin is positioned in advance with respect to the pin insertion hole of the column connecting bracket, a horizontal connecting Just adjust the position of the connection bracket and push in the pin,
The support and the horizontal joint can be easily and quickly connected, and the workability of the construction work can be further enhanced.

Further, in this case, it is not necessary for the operator to collect the pins at the time of disassembly, so that the safety and workability of the disassembling operation can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded front view of an embodiment of the present invention.

FIG. 2 is a perspective view of one embodiment of the present invention.

FIG. 3 is a perspective view of a main part of one embodiment of the present invention.

FIG. 4 is a perspective view of another embodiment of the present invention.

FIG. 5 is a perspective view of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base jack 2 Prop 3 Horizontal connection 7 Pin insertion hole 8 Connection metal fitting 9 Lock pin 18 Pin insertion hole 19 Connection metal fitting

Claims (3)

(57) [Claims] 1. A temporary structure having a plurality of vertical pillars and a horizontal tether for connecting a plurality of horizontally aligned pillars, wherein a pin insertion hole for horizontal tether connection is provided at an upper end and a lower end of the pillar. Provide a connection bracket, pin insertion hole of the lower pillar of the pillars connected vertically at both ends of each horizontal joint,
A temporary structure having a connection fitting having upper and lower two pin insertion holes corresponding to a pin insertion hole of an upper support. 2. The lock according to claim 1, wherein a lock pin inserted into the pin insertion hole is rotatably supported by the connection fitting of the support post so as to be able to protrude and retract from the pin insertion hole. Temporary structure. 3. The lock pin according to claim 1, wherein a lock pin inserted into the pin insertion hole is rotatably supported by the horizontal connection connection fitting so as to be able to protrude and retract from the pin insertion hole. Temporary structure.