JP3119606U - Assembly scaffold connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembling scaffold connecting device having good workability in assembling and disassembling, requiring no experience, and having higher safety.
An assembly scaffold is formed by engaging a connecting metal fitting 10b fixed to an end of a horizontal member 10a with a receiving metal fitting 2 that is fixed to a column and is inclined downward in a plan view. 10 is connected to the support column 1, and the connecting device is composed of a receiving bracket 2, a connecting bracket 10 b and a wedge 17.
The connecting metal fitting 10b is a latch 11 fixed to the end of the cross member 10a, and a latching claw 12c provided at the lower end thereof, which is rotatably supported by a horizontal support pin 16 in the bracket 11. The metal member 12 and a leaf spring 13 that urges the upper portion of the locking metal member 12 outward are configured. At the time of connection, the connecting metal fitting 10b is engaged with the receiving metal fitting 2, and the wedge 17 is engaged with the locking metal fitting 12 from above and driven. As a result, the locking claw 12 c is locked to the lower end of the metal fitting 2.
[Selection] Figure 1

Description

  The present invention relates to a connecting device for an assembly scaffold that is assembled by connecting a transverse member to a support.

  An assembly-type scaffold attached to a building is used repeatedly, and is generally assembled by connecting a transverse member to a steel pipe column. As a means for connecting the transverse member to the column, a clamp type and a wedge-tight type are known and put into practical use. For example, as shown in FIG. 5, the wedge-tightening type has a wedge-shaped engaging metal fitting 4 a in which a receiving metal fitting 2 that is U-shaped in a plan view and is inclined downward is fixed to a support column 1 and fixed to both ends of a lateral member 4. It is widely used to squeeze in and squeeze with a hammer from above.

  In addition, in the conventional wedge-tightened type, a wedge hole is provided in the upper part of the side of the support bracket of the support column, and the wedge fitting of the horizontal member is fitted to the support bracket, and then the wedge is horizontally inserted into the wedge hole. There is one that prevents the fitting fitting from coming off (for example, Patent Document 1).

Japanese Utility Model Publication No. 4-38039

The above-mentioned wedge-tightening type coupling device has a simple structure and high durability, but since the engaging metal fitting is fitted in a wedge shape to the receiving metal fitting, the amount of fitting is difficult to be constant, the scaffold is inclined, There are many things. For this reason, building a good scaffold requires considerable experience and takes time.
In addition, although the scaffold of Patent Document 1 is rarely inclined, it is tightly pressed by a hook with a fitting metal fitting, and the dimensional accuracy of the metal fitting, the wedge hole, and the fitting metal is not more than a certain level. Uniform binding is difficult. Thus, it cannot be said that the conventional wedge-tightening type coupling device is good in workability, requires experience for assembly, and is desired to be improved from the viewpoint of safety.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an assembling scaffold connection device that has good workability in assembly and disassembly, does not require experience, and has higher safety.

In order to achieve the above object, the connecting device for the assembly scaffold of the present invention employs the following means. That is, a coupling scaffold coupling device that engages a coupling bracket provided in a transverse member with a bracket that is inclined downward in a U-shape in a plan view provided in a support column, and inserts and connects a wedge from above, The connecting metal fitting is provided in the metal end 11 with a metal end 11 provided with an engaging recess 11h that is fixed to the end of the horizontal member and engages with the support metal fitting of the support in an inverted U shape in plan view. The locking fitting 12 is formed of an elastic member, and the locking fitting 12 is rotatably supported by a support pin in the horizontal direction. The elastic member is provided so as to urge the upper portion of the engagement fitting 12 outward.
In addition, although the code | symbol of drawing demonstrated by embodiment was attached | subjected to said structure, this is for understanding the content easily, and does not limit the technical scope of an invention to the thing of drawing.

This connecting device includes a support bracket for a support, a connecting bracket for a lateral member, and a wedge. The connecting bracket includes an end metal 11, a locking bracket 12, and an elastic member. In addition, the same metal fitting as the conventional one demonstrated in FIG. 5 is used.
The end metal 11 is preferably provided with a mounting hole for locking the bracing.
The locking metal 12 is engaged with the wedge 17 and rotated in the front-rear direction, and the shape of each other is selected so that the locking claw 12c is engaged with and disengaged from the receiving metal.

  The elastic member uses rubber or a spring. In the case of a spring, for example, a torsion coil spring may be attached to the support pin. However, as described in claim 2, a leaf spring is used, and the upper end and the lower end thereof are respectively locked to the horizontal pins. It is desirable to arrange on the back side of the locking metal fitting 12. It should be noted that urging the upper portion of the above-mentioned locking metal fitting 12 outward means that the portion above the support pin of the locking metal fitting 12 is urged toward the support column.

  In the assembling scaffold connecting device of the present invention, as described above, the connecting metal fitting is provided in the end metal 11 with the end metal 11 having the engagement recess 11h engaged with the receiving metal in an inverted U shape in plan view. The locking bracket 12 is supported by a horizontal support pin so as to be rotatable, and a locking claw 12c that locks the receiving bracket when the wedge is fitted is provided at the lower end. Since the elastic member is provided so as to urge the upper part of the locking metal member 12 outward, the workability is very good.

  That is, at the time of assembly, the engaging recess 11h is engaged with the bracket, and the wedge 17 is lightly driven from above, so that the locking claw 12c is engaged with the bracket, and at the time of disassembly, the wedge 17 is moved from below. It is possible to release the locking claw 12c by lightly driving, and it is not necessary to drive it so that the metal fitting is deformed as in the prior art, and nobody needs experience, and anyone can simply and reliably connect the same. In addition, after the connection, the end metal 11 is brought into close contact with the support post by the elastic member, so that safety is improved. In addition, since the conventional support can be used as it is, there is a practical effect that there is little economic burden to change to the present invention.

Furthermore, if the elastic member is a leaf spring, and the upper end and the lower end of the elastic member are respectively locked to the horizontal pins and arranged on the back side of the locking fitting 12 (Claim 2), the workability is good and the durability is high. Can be a thing.
Moreover, if the attachment hole for latching a brace is provided in the end metal 11 (Claim 3), it can attach more simply compared with the case where a brace is attached to a receiving metal fitting.

An embodiment of a connecting device for an assembly scaffold according to the present invention will be described with reference to FIGS.
The assembly scaffold is assembled by standing upright on the height adjustment jacks with the support posts 1 to which the support metal fittings 2 are fixed at predetermined intervals, and by connecting the transverse members 10 thereto.
The connecting device for the assembly scaffold is composed of the support fitting 2 of the support column 1, the connection fitting 10 b of the transverse member 10, and the wedge 17. In addition, the structure of the support | pillar 1 and the metal fitting 2 is the same as the conventional thing demonstrated in FIG.

The connection fitting 10b is fixed to both ends of the cross member 10a, and is used to attach the end metal 11, the engagement metal 12, the plate spring 13 as an elastic member, and the engagement metal 12 and the plate spring 13 to the end metal 11. It comprises a support pin 16 and pins 14 and 15.
The end metal 11 has an inverted U shape in a plan view and is provided with an engaging concave portion 11 h. In the end metal 11, a pin hole 11a of a pin 14 that supports the upper end of the leaf spring 13, a pin hole 11b of a pin 15 that supports the lower end of the leaf spring 13, and a locking fitting 12 are rotatably supported pins. 16 is provided with a pin hole 11c. The pin hole 11b is provided in a vertically long shape so that the pin 15 can move in the vertical direction.

The locking fitting 12 includes an arcuate engagement portion 12 b that engages with the wedge 17 at the top, and a locking claw 12 c that engages with the lower end of the receiving fitting 2 at the lower end. And the pin hole 12d is provided in the approximate center part of the latching metal fitting 12, and it is attached with the support pin 16 so that rotation in the front-back direction is possible.
Both ends of the leaf spring 13 are formed in a hook shape, bent in an arc shape toward the locking fitting 12 side, and locked to pins 14 and 15 inserted into the pin holes 11a and 11b.
The wedge 17 has a flat front part 17b, but the back part 17a is inclined so as to become gradually narrower downward, and a concave part 17c is provided in the intermediate part.

Next, the operation of the connecting device for the assembly scaffold constructed as described above will be described.
When connecting the horizontal member 10 to the upright support column 1, as shown in FIG. 3A, the engaging recess 11 h of the connection bracket 10 b is engaged with the receiving bracket 2 of the support column 1. At this time, the engaging recess 11 h is in contact with the upper end of the metal fitting 2. At this time, the upper side of the locking member 12 is pressed by the leaf spring 13 and is rotated counterclockwise with the support pin 16 as a fulcrum. At this time, the lower end of the leaf spring 13 is positioned above the pin hole 11b.

Next, the wedge 17 is inserted from the upper side with the front portion 17b facing forward to the distal end side of the end metal 11.
As shown in FIG. 3B, the wedge 17 falls by its own weight, and engages with and engages with the engagement portion 12b of the engagement fitting 12 at the recess 17c. In this state, when the hammer is driven from above, the leaf spring 13 is bent, the lower end moves below the pin hole 11b, the wedge 17 is pushed downward, and the locking member 12 is rotated clockwise. . Thereby, as shown in FIG. 1, the locking claw 12 c is locked to the lower end of the metal fitting 2.

  When disassembling the assembled scaffold, it is only necessary to hit the lower end of the wedge 17 upward with a hammer in FIG. As a result, the wedge 17 moves upward, and accordingly, the locking fitting 12 rotates clockwise, and the locking claw 12c is detached from the receiving fitting 2, resulting in the state shown in FIG. 3B. If the wedge 17 is extracted in this state, the transverse member 10 can be lifted off.

  In FIG. 4, the transverse member 10 is connected to the support 1 and the brace 20 is joined and reinforced, and one end of the brace 20 is connected to the pin hole 11 d of the end metal 11 of the transverse member 10 with a pin 15. . Further, the other end is engaged with the receiving metal fitting 2 and the locking member 21 is driven from above to be locked.

  In the above-described embodiment, the pins 14 and 15 are engaged with both ends of the leaf spring 13 and the pin hole 11b on the lower end side is a long hole. However, the pin hole 11b is the same round hole as the pin hole 11a. The lower end of the leaf spring 13 may be moved away from the pin 15 when a load is applied.

It is a side view which shows embodiment of the coupling device of the assembly scaffold of this invention. FIG. It is a side view which shows the state which connects a horizontal member to a support | pillar, (a) shows the state before connection, (b) shows the state in the middle of connection. It is a side view which shows the usage example which attached the bracing. It is a perspective view which shows an example of the connection device of the conventional assembly scaffold.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Receptacle 4 Cross member 4a End metal 10 Cross member 10a Cross member 10b Connecting metal 11 End metal 11a Pin hole 11b Pin hole 11c Pin hole 11d Pin hole 11e Front part 11h Engagement recessed part 12 Locking metal part 12a Back part 12b Engagement Joint portion 12c Locking claw 12d Pin hole 13 Leaf spring 14 Pin 15 Pin 16 Support pin 17 Wedge 17a Abutting surface 17b Front portion 17c Recess 20 Bracing

Claims (3)

  A connecting device for an assembly scaffold, in which a connecting bracket provided on a transverse member is engaged with a receiving bracket inclined downward in a U-shape in plan view provided on a support column, and a wedge is inserted from above and connected. The metal fitting is provided in the metal end 11, which is fixed to the end of the horizontal member and includes an engagement recess 11 h that is reversely U-shaped in plan view and engages with the support metal fitting of the column. The locking bracket 12 includes an elastic member, and the locking bracket 12 is rotatably supported by a horizontal support pin. The lower end includes a locking claw 12c that locks the receiving bracket when a wedge is inserted. The assembly scaffold coupling device, wherein the elastic member is provided so as to urge the upper portion of the locking member 12 outward.   The coupling of the assembly scaffold according to claim 1, wherein the elastic member is a leaf spring, and the upper end and the lower end of the elastic member are respectively engaged with horizontal pins and arranged on the back side of the engagement fitting 12. apparatus. The connecting device for an assembly scaffold according to claim 1, wherein the end metal has an attachment hole for locking the brace.

Images