JPH0828037A - Connection structure of pipe-made member constituting temporary scaffolding - Google Patents

Abstract

PURPOSE:To make it possible to simplify pipe-made members which constitute a temporary scaffolding, and what is more, to connect the members positively and remove them as well. CONSTITUTION:When round pipe-made members 11, 12, 21 and 22, which constitute a temporary scaffolding, are fitted in and connected to each other removably, a specified number of pin holes 13, 14, 23 and 24 are formed in a communicating manner on a connection part of each of the round pipe-made members 11, 21, and 22 while each of engageable engagement pins 15 and 25 is mounted to each of the pin holes 13, 14, 23 and 24 by way of energizing members 16 and 22. Guide slopes 12 and 27 are formed in a notched manner on the outer peripheral surface of each of the engagement pins 15 and 25 so that the round pipe-made members 11, 12, 21 and 22 may be twisted and removed from the specified pin holes 12 and 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for detachably connecting pipe members constituting a temporary scaffold.

[0002]

2. Description of the Related Art Conventionally, for example, a pillar constituting a required temporary scaffold is formed of a round pipe material at a required height, and pin holes are formed in both sides of a lower end portion thereof in a communicating manner. It is known that an end portion is provided with a connecting insertion pipe having communicating pin holes on both sides. Then, when constructing the required temporary scaffolding, the pillars are erected upright through the base metal fittings, and the insertion pipes of the pillars are inserted into the lower ends of the other pillars to be connected and fitted together, While matching the pin holes so as to communicate with each other, an engaging pin having a required length is manually inserted into and locked in the pin holes so that they are sequentially connected upward. On the contrary, when the connection between the columns is released, the engaging pin is pulled out from the pin hole by hand to release the locking.

Similarly, a column composed of a round pipe main pipe having communicating pin holes and a round pipe inserting pipe having a plurality of communicating length adjusting pin holes at predetermined intervals. Also for braces for use, the insertion pipe is inserted into the main pipe to be fitted, and the engaging pin is inserted and locked into the corresponding corresponding pin hole by hand from the outside so that it is connected to the predetermined length. It is said that.

[0004]

By the way, as described above, the structural members such as the pillars which constitute the temporary scaffold are fitted through the insertion pipes, and the engaging pins are inserted into the pin holes by one hand from the outside. Since it is configured to be connected by inserting and locking and to be removed by removing the engaging pin, the connecting work and the removing work are very troublesome and troublesome, and the work efficiency is extremely poor. Was there.

The present invention solves the conventional problems all at once, and makes it extremely easy to form a pipe member constituting a temporary scaffold,
Moreover, it is an object of the present invention to provide a connection structure that can be surely connected and detached.

[0006]

That is, according to the present invention, the required round pipe members 11, 12, and 21 that form a temporary scaffolding are provided.
When the 22 are fitted and are detachably connected, the required number of pin holes 13, 14, 23, 24 are connected to the connecting portions of the respective round pipe members 11, 12, 21, 22. While being formed, each round pipe member 11, 12, 21 ...
One of the pin 22 has an engaging pin 15/2 which is engageable with each of the pin holes 13, 14, 23, 24 via a biasing member 16, 26.
5 is attached to each of the engaging pins 15 and 25, and the outer peripheral surface of each of the engaging pins 15 and 25 is a guide slope for screwing the round pipe members 11, 12, 21 and 22 into and out of the predetermined pin holes 14 and 24. 17 and 27 have a notch-formed structure.

[0007]

Operation: While pressing the engagement pins 15 and 25 against the biasing members 16 and 26 in a predetermined direction, the round pipe member 11.1
Round pipe member 11.1 by fitting 2.21, 22
2.21.22 are twisted to engage and engage the respective engaging pins 15.25 with the corresponding pin holes 14.24. On the contrary, when releasing the connection, the round pipe members 11, 12, 21 ...
While twisting 22 in a predetermined direction, the pin holes 13.
The four edges are slid from the base end portions of the guide slopes 17 and 27 toward the tip end portions, and the engaging pins 15 and 25 are pressed in the anti-engaging direction against the biasing members 16 and 26.
Release the engagement with 4 ・ 24 to release the connection.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. 1 to 6 show a first embodiment of the present invention. In the figure, 11 is a round pipe strut having a required height which constitutes a temporary scaffold, and 12 is a connection attached to the tip of the strut 11. Insert pipe made of round pipe for use, 13 is a pin hole formed on both sides of the front end of the insert pipe 12 so as to face each other,
14 are pin holes formed on both sides of the lower end of the column 11 so as to correspond to the pin holes 13. 15 is each pin hole 13
An engaging pin 17 is attached to the inner peripheral surface of the insertion pipe 12 via an urging member 16 such as a leaf spring material so as to be engaged with 14, and 17 is left on the outer peripheral surface of the engaging pin 15. The guide slope is a notch formed in a substantially conical shape, and the base end of the guide slope 17 is located at substantially the same level as the edge of the pin hole 13 of the insertion pipe 12.

Then, when constructing a required temporary scaffold, the column 11 is erected by means of a base metal fitting (not shown), and the engagement pin 15 is resisted from the outward bias of the bias member 16. Then, while pushing inward, the insertion pipe 12 of the column 11 is inserted into and fitted into the lower end of another column 11 to be connected (see FIGS. 1 to 4). Then, the support column 11 is twisted in a predetermined direction to urge the engagement pin 15 outward by the biasing member 16 while engaging with the insertion pipe 12 and the pin holes 13 and 14 of the support column 11 for connection (FIG. 5 and FIG.
reference). On the contrary, when the connection between the columns 11 is released, the columns 11 are twisted in the direction shown by the arrow in FIG. Then, the edge of the pin hole 13 of the insertion pipe 12 comes into contact with the guide slope 17 of the engagement pin 15 and slides from the base end portion toward the tip end portion, and gradually the engagement pin 15 is resisted against the biasing member 16. Then, the support 11 is pressed inward to release the engagement of the pin 11 with the pin hole 14 and release the connection (see FIGS. 3 and 4). Then, when the engagement of the engagement pin 15 is released, the column 11 may be pulled out upward and removed.

FIGS. 7 to 9 show a second embodiment of the present invention, in which 21 is a round pipe-made main bracing pipe which constitutes a temporary scaffold, and 23 is both ends of the main pipe 21. The formed pin holes, 22 are insertion pipes made of a round pipe which are inserted into the main pipe 21 and can be fitted freely, and 24 are provided at predetermined intervals on both sides of the lower end portion of the insertion pipes 22 corresponding to the pin holes 23. And a plurality of length adjusting pin holes are formed. Reference numeral 28 is a collar fitted to the tip of the main pipe 21, 29 is a pin hole formed on the outer peripheral surface of the collar 28 so as to correspond to each pin hole 23, 24, and 25 is a respective pin hole 23, 24. An engaging pin mounted on the outer peripheral surface of the collar 28 via a biasing member 16 such as a leaf spring material so as to be engaged with 29, and 27 is left on the outer peripheral surface of each engaging pin 25. The guide slope 27 is formed as a substantially conical cutout, and the base end of the guide slope 27 is located at substantially the same level as the edge of the pin hole 23 of the main pipe 21.

When the insertion pipe 22 is connected to the main pipe 21 to form a brace, the engagement pin 25 is pressed outward against the inward urging of the urging member 26 while the main pipe is being urged. Two
1. Insert the insertion tube 22 into 1 and fit it into the insertion tube 22.
Is engaged in a predetermined direction by engaging the engaging pin 25 with the predetermined pin holes 23, 24, 29 (see FIGS. 7 and 8). Further, when adjusting the length of the braces, the insertion pipe 22 is twisted in the direction shown by the arrow in FIG. 9, and the edge of the pin hole 24 of the insertion pipe 22 is slid along the guide slope 27 having a substantially spiral shape. It is preferable that the engaging pin 25 is pushed outward while being pressed to release the engagement of the insertion tube 22 with the pin hole 23, and then the engagement pin 25 is engaged with a required pin hole to be connected.

Although the above-mentioned embodiment shows the structure for connecting the pillar 11 and the main brace main pipe 21 and the insertion pipe 22 constituting the brace, the present invention is not limited to this, and other temporary scaffolds are provided. It can also be applied to the connection of round pipe members constituting the above.

[0013]

EFFECTS OF THE INVENTION According to the present invention, the required round pipe members 11, 12, 21, which form the temporary scaffold, are constructed as described above.
When the round pipe members 11, 12, 21, 22 are fitted with 22 and are detachably connected, a required number of pin holes 13, 14, 23, 24 are formed in communication with the connecting portions of the round pipe members 11, 12, 21, 22. Each round pipe member 11, 12, 21, 2
An engaging pin 15/25 that can be engaged with one of the pin holes 13/14/23/24 via an urging member 16/26.
, And the guide slopes 1 for screwing round pipe members 11, 12, 21, 22 on the outer peripheral surfaces of the engaging pins 15, 25 so as to engage and disengage with the predetermined pin holes 14, 24.
Since 7 · 27 is formed as a notch, the engagement pin 15 ·
25 is pressed against the urging members 16 and 26 in a predetermined direction, the round pipe members 11, 12, 21, and 22 are fitted, and the round pipe members 11, 12, 21, and 22 are twisted to each other. Engage the engaging pins 15 and 25 with the corresponding pin holes 14 and 24 to connect them, and conversely, to release the connection, twist the round pipe members 11, 12, 21 and 22 in a predetermined direction. Meanwhile, the edges of the pin holes 13 and 24 are guided to the slopes 17 and 27
The engagement pin 15/25 is pushed in the anti-engagement direction against the urging members 16/26 to release the engagement with the pin hole 14/24. ,
With an extremely simple operation to release the connection,
The pipe members 11, 12, 21, and 22 can be extremely easily
Moreover, it can be securely connected and removed.

[Brief description of drawings]

FIG. 1 is a fragmentary sectional view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a crushing sectional view showing the connected operation state.

4 is a cross-sectional view taken along the line BB of FIG.

FIG. 5 is a fragmentary sectional view showing the same connected state.

6 is a sectional view taken along the line CC of FIG.

FIG. 7 is a side view showing a second embodiment of the present invention.

8 is a cross-sectional view taken along the line DD of FIG.

FIG. 9 is an enlarged cross-sectional view of an essential part showing the connection release state.

[Explanation of symbols]

 11 Struts 12 Insertion Pipes 13,14,23,24 Pin Holes 15/25 Engaging Pins 16/26 Biasing Members 17/27 Guide Slopes 21 Main Bracing Pipes 22 Bracing Insert Pipes

Claims (1)

[Claims] 1. When the required round pipe members 11, 12, 21, 22 constituting a temporary scaffold are fitted and detachably connected, the respective round pipe members 11, 12, 21, 2 are attached.
2 has a required number of pin holes 13, 14, 23,
24 are formed in communication with each other, and each round pipe member 1
Each of the pin holes 13 and 14 is provided on one of 1, 12, 21 and 22.
Engaging pins 15 and 25 which can be engaged with 23 and 24 via biasing members 16 and 26 respectively, and a round pipe member 11 on the outer peripheral surface of each engaging pin 15 and 25. 12.
A connecting structure of pipe members constituting a temporary scaffold, characterized in that guide slopes 17 and 27 are formed by notches so as to be engaged with and disengaged from predetermined pin holes 14 and 24 by screwing 21 and 22.