JP2976101B2 - Side frame for temporary scaffold - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a temporary scaffold side frame used for a temporary scaffold at a construction site or the like.

[0002]

2. Description of the Related Art Usually, as a side frame for a temporary scaffold mainly used in a temporary scaffold, a brace-shaped side frame provided so as to cross a rod-shaped member made of, for example, two pipes is known. I have. In order to attach the side frame to the vertical support of the temporary scaffold, the engaging member provided on the vertical support is engaged with the engagement hole provided at each end of the brace-shaped pipe. .

[0003]

However, the side frame formed by the brace-shaped pipe has the following disadvantages. That is, since the side frames are formed in a cross shape, there is a risk that an operator may accidentally drop from the gap between the side frames during operation or the like. This is because when two pipes are connected to a temporary scaffold, the gap between the two pipes becomes wider as the two pipes move away from the central cross connection, and the gap becomes larger. This is because it is large enough to easily pass through, and there is a risk of falling from this gap.

The present invention has been developed to solve the problems of the conventional brace-shaped side frames described above.
The purpose is to allow the worker to work safely without danger of falling during the work, and that the temporary scaffold side frame is excellent in durability and that the side frame is attached. Another object of the present invention is to provide a temporary scaffold side frame that can be easily removed, has good workability, can be firmly mounted when the side frame is mounted, and can be manufactured at low cost.

[0005]

According to the present invention, at least one end of each of a pair of vertically arranged pipe members is provided so as to be extendable and contractible via a lock mechanism. At the same time, connection ends at both ends of the pipe member are formed in a concave arcuate surface which can abut against the connecting vertical support, and an elastic member such as rubber is provided at a position of the abutting surface of the arcuate surface.

A short cylinder is slidably provided at an end of the pipe member, and a lock hole provided in the pipe member and an appropriate number of adjustment holes provided in the short cylinder are overlapped with each other in an adjustable manner. It is preferable to lock a lock pin provided on the pipe member into both holes.

Further, the guide pin provided on the above-mentioned pipe member is engaged with a long hole provided on the short cylinder so as to be guided, and a pair of pipe members arranged in parallel on the upper and lower portions is connected by a vertical pipe. Constitute. Of the pair of pipe members, a locking piece is fixed near the left and right ends of the lower pipe member, and the locking piece is temporarily attached.
Either lock it on a horizontal support that forms a scaffold , or attach mounting members to the left and right vertical pipes that connect a pair of pipe members.
Is fixed to a vertical column forming a temporary scaffold .

In order to attach the side frame to the temporary scaffolding frame according to the present invention, both ends of a pair of pipe members are brought into contact with each other between the vertical columns and the short cylinder is extended and locked by the lock mechanism. Since the rubber is strongly pressed and fixed, the side frame is securely fixed to the column.

At the same time, when the locking piece is locked to the lateral support of the scaffold plate, the side frame does not drop out of control. Further, a mounting member for mounting the support may be mounted on the support. Furthermore, when the short cylinder is slid on the pipe member, the guide hole guides the long hole, so that the lock hole and the adjustment hole can be reliably overlapped, and the lock pin is inserted into the lock hole and the adjustment hole. By doing so, the short cylindrical body can be fixed.

In addition, the concave circular arc surface of the short cylindrical body can firmly fix the pipe member to the column by the elastic member pressed by the vertical column, and also absorbs vibration such as shaking generated on the scaffold.

When fixed to the connecting vertical support, the circular arc surface at the end of the short cylindrical body that presses the vertical support is pressed and firmly fixed by pressing the arc-shaped portion to the outer circumference of the pipe diameter when pressed. Is done. In addition, since the arc shape has a shape in which the arc end is slightly opened outward, not only the vertical post having the same arc diameter as the arc portion of the contact surface, but also the vertical post for connection. Even if there is some difference in the diameter of the pipe, it can be clamped.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the figure, a pair of upper and lower pipe members 1 and 2 arranged side by side are fixed vertically pipes 3 and 4 at positions near both ends, and further, pipe members 1 and 2 are positioned between the vertical pipes 3 and 4. Parallel to the horizontal pipe 5,
6 and 7 are fixed. These connection structures are optional in practice.

At both ends of the tubular pipe members 1 and 2, short cylinders 8 and 9 having a pipe diameter larger than the diameter of the pipes of the pipe members 1 and 2 are provided coaxially with the axis of the pipe members 1 and 2. Have been. In the length direction of the short cylinders 8 and 9,
1 and the pipe members 1 and 2
A guide pin 12 is fixed at a position corresponding to 0 and 11, and the guide pin 12 is engaged with the elongated holes 10 and 11 so as to be freely guided.

Further, a lock pin 13 formed by bending a rod-shaped member or the like and having a substantially U-shaped side surface is provided on the pipe members 1 and 2 so as to be slidable perpendicularly to the axis.
Adjustment holes 14 and 15 (in this example, 2
Are provided in the short cylinders 8 and 9, and lock holes 13 a that overlap with the adjustment holes 14 and 15 are formed in the pipe members 1 and 2.

As shown in FIGS. 4 and 5, when the short cylinders 8 and 9a are slidably provided on the pipe members 1 and 2,
Only one of the left and right ends can be slid,
At the other end, as shown in FIG. 5, the short cylindrical bodies 8, 9a and the pipe members 1, 2 are fixed by means such as welding. In this case, when the interval between the vertical columns 16 and 17 is different, for example, 18
Use for 00mm and 1829mm separately.

The arc surfaces 18 and 19 of the short cylinders 8 and 9 are formed in a substantially circular arc shape on the side so as to be equal to or slightly larger than the tube diameter of the vertical connecting posts 16 and 17. By slightly opening the front end portion outward and forming a large arc shape, it is possible to cope with the pipe diameters of the various vertical columns 16 and 17.

An arcuate surface 18, which is a tube end of the short cylinders 8, 9,
19, the entire end portion is covered with an elastic member 20 made of rubber or the like, and the short cylindrical bodies 8 and 9 and the elastic member 20 are fixed with an adhesive or the like.

Also, a pair of upper and lower pipe members 1, arranged in parallel,
2, the lower pipe member 2 is provided with a locking piece 22 for locking the horizontal support 21 from above and locking the side frame near substantially both ends, and the locking piece 22 is provided on one side. Has a locking groove 23 for locking to the horizontal support 21, and the other is fixed to the pipe members 1 and 2 by, for example, welding.

FIGS. 11 and 12 show another example, in which mounting members 25 for mounting to vertical columns 16 and 17 are attached to left and right vertical pipes 3 and 4 connecting a pair of pipe members 1 and 2. Is provided. As shown in FIG. 12, one end of the mounting member 25 is rotatably provided on the vertical pipes 3 and 4 via a rotary cylinder 26, and can be mounted by a pin 30 and the other end can be opened. Attachment piece 27 attaches vertical screws 16 and 17 to thumb screws 2
Fix through 8. In the figure, reference numeral 29 denotes a coil spring.

Next, the operation of the temporary scaffold side frame will be described. The U-shaped lock pin 13 provided near the ends of the pipe members 1 and 2 can slide at right angles to the sliding direction of the short cylinders 8 and 9, and first slide the lock pin 13 upward. To remove the adjustment holes 14 and 15 of the short cylinders 8 and 9 and the lock holes 13a of the pipe members 1 and 2 to make the short cylinders 8 and 9 slidable. The short cylinders 8 and 9 are slid.

Next, a vertical support 16 for connecting a temporary scaffold,
The position of the entire side frame is adjusted so that the short cylinders 8 and 9 at both ends of the side frame can be brought into contact with the position of the side frame 17. At this time, the locking pieces 22 provided near the left and right ends of the pipe member 2 at the lower portion of the side frame are locked to the horizontal columns 21 of the scaffold 24.

After deciding the position of the side frame with respect to the temporary scaffold, the short cylinders 8 and 9 are slid in the direction in which the entire side frame becomes longer, and the short cylinders 8 and 9 are connected to the connecting vertical posts 16 and 17. The end arc surfaces 18 and 19 of the 9 are located at positions where the elastic members 20 abut. The plurality of adjustment holes 1 drilled in the short cylinders 8 and 9
One of 4 and 15 is overlapped with the lock holes 13a of the pipe members 1 and 2, and then the lock pin 13 is slid downward to lock the adjustment holes 14 and 15 and the lock holes 13a to lock. Let it. In this case, when the distance between the vertical columns 16 and 17 is different, for example, for the case of 1800 mm and the case of 1829 mm, it can be selectively used.

By locking the adjustment holes 14, 15 and the lock holes 13a with the lock pins 13, the dimensions of the side frames are fixed, and the connecting vertical columns 1 at the ends of the short cylinders 8, 9 are fixed.
Since the arcuate surfaces 18 and 19, which are the contact surface positions with the members 6 and 17, are covered with an elastic member 20 made of rubber or the like that absorbs vibration from the outer periphery to the inner periphery, the short cylindrical members 8 and 9 are in contact. Elastic member 20 clamped between the surface and connecting vertical columns 16 and 17
However, it absorbs vibration such as shaking that occurs when an operator moves, and the vibration is reduced, so that the load applied to the side frame is reduced, and the durability of the side frame is also excellent.

When fixing the side frames to the vertical columns 16 and 17,
The end circular arc surfaces 18 and 19 are connected to the connecting vertical columns 16 and 17.
Since the shape of the arc is approximately the same as the diameter of the tube at the portion to be clamped, it is securely clamped at the time of connection, and is firmly fixed due to the large pressing area of the arcuate surfaces 16 and 17 at the ends. In addition, since the arc shape is not a true arc, but has a shape in which the arc end is slightly open outward, the vertical support 16 having a pipe diameter of the same arc as the arc portion of the contact surface,
It is possible to clamp not only the pipe 17 but also the pipes of the vertical columns 16 and 17 even if there is some difference.

Further, by covering the contact surface with the elastic member 20, the arcuate surfaces 18, 19 of the short cylindrical body and the vertical columns 16, 17 are brought into close contact with each other at the time of pressing, and the elastic member is provided at the time of work or movement. 20 absorbs the generated vibration, shaking, and the like, and is securely fixed to maintain the state.

The locking pieces 22 provided near the left and right ends of the lower pipe member 2 forming the side frame are locked on the horizontal columns 21 of the temporary scaffold. There is no risk of the frame being displaced, and stable work can be performed since the frame is mounted on the horizontal support 21.

Since the left and right vertical pipes 3 and 4 connecting the pair of pipe members 1 and 2 are provided with mounting members 25 for mounting on the vertical columns 16 and 17, the scaffold 24 is set in the middle as shown in FIG. In order to attach the side frames to the vertical supports 16 and 17, the mounting member 25 is attached to the vertical supports 16 and 17 with a mounting piece 27 whose other end can be expanded as shown in FIG.
Attach by fixing via 8.

[0028]

As described in detail above, according to the present invention, there is provided a temporary scaffold side frame which allows a worker to safely work without worrying about falling during the work.
This side frame is excellent in durability, reduces vibrations generated during work and walking, is easy to install and remove, has very good workability, and can be firmly attached at the time of installation,
There are also excellent effects such as inexpensive production.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a temporary scaffold side frame of the present invention.

FIG. 2 is an overall perspective view of the temporary scaffold side frame.

FIG. 3 is a partially enlarged perspective view of the temporary scaffold side frame.

FIG. 4 is a front view showing another embodiment of the temporary scaffold side frame.

FIG. 5 is a partially enlarged front view of the temporary scaffold side frame.

FIG. 6 is a partially enlarged sectional view showing a shape of a pressing surface of the temporary scaffold side frame.

FIG. 7 is a partially enlarged sectional view showing the structure of the pressing surface.

FIG. 8 is a partially enlarged front view showing a pressing procedure of the pressing surface.

FIG. 9 is a partially enlarged front view showing a pressing procedure of the pressing surface.

FIG. 10 is a partially enlarged perspective view of the above.

FIG. 11 is a partial perspective view showing another example of the temporary scaffold side frame of the present invention.

FIG. 12 is an enlarged perspective view of the mounting member shown in FIG.

[Explanation of symbols]

 1, 2 pipe member 3, 4 vertical pipe 8, 9, 9a short cylindrical body 10, 11 long hole 12 guide pin 13 lock pin 13a lock hole 14, 15 adjustment hole 16, 17 vertical support 18, 19 arc surface 20 elastic member 22 Locking piece 24 Scaffold 25 Mounting member 26 Rotating cylinder

Claims (6)

(57) [Claims] At least one end of each of both ends of a pair of pipe members vertically arranged in parallel with each other is provided so as to be extendable and contractable via a locking mechanism, and connection ends of both ends of each of the pipe members are vertically connected. A side frame for a temporary scaffold, wherein the side frame is formed on a concave circular arc surface which can contact with a support, and an elastic member such as rubber is provided at a position of a contact surface of the circular arc surface. 2. A short cylinder is slidably provided at an end of the pipe member, and a lock hole provided in the pipe member and an appropriate number of adjustment holes provided in the short cylinder are overlapped with each other in an adjustable manner. 2. The temporary scaffold side frame according to claim 1, wherein a lock pin provided on the pipe member is engaged with the holes. 3. A guide pin provided on said pipe member and an elongated hole provided on a short cylinder body is guided and engaged with said guide pin.
The side frame for the temporary scaffold described. 4. The temporary scaffold side frame according to claim 1, wherein a pair of pipe members arranged in parallel on the upper and lower portions are connected by a vertical pipe. 5. A locking piece is fixed to the lower pipe member in the vicinity of both left and right ends of the pair of pipe members .
The side frame for a temporary scaffold according to any one of claims 1 to 4, wherein the side frame is fixed to a horizontal support that forms a temporary scaffold. 6. A mounting member is attached to left and right vertical pipes connecting a pair of pipe members, and the mounting member is used to connect a temporary scaffold.
The side frame for a temporary scaffold according to any one of claims 1 to 4, which is fixed to a vertical support formed .