JP2002356989A - Device for attaching handrail to prefabricated scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for attaching a handrail to a prefabricated scaffold being easily and smoothly attachable to or removable from a building frame consisting of vertical and horizontal members, enabling free positioning without being limited by installation space, being easy to transport and store, and being made lightweight. SOLUTION: A plurality of building frames 3 each consisting of vertical members 1 and horizontal members 2 are erected transversely and scaffold plates 4 are stretched between the horizontal members; one or plural scaffold frames 8 each having a handrail 7 constructed of a vertical column 5 and a horizontal handrail frame 6 and stretched between the vertical members are vertically arranged in steps to form the framed scaffold. The column includes a first attaching member A for attaching to the horizontal or vertical member, a second attaching member B for attaching to the vertical member, and a third attaching member C for attaching an end of the handrail frame to the column. The column is attached to the building frame via the first and second attaching members and the handrail frame is attached to the column via the third attaching member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding device used in a construction site or a civil engineering work site, or a handrail mounting device in a framed scaffold as a supporter.

[0002]

2. Description of the Related Art Generally, a frame scaffold used as a scaffolding device or a shoring is installed at a building construction site or a civil engineering construction site.

In this framework scaffold, a plurality of building frames composed of building materials and horizontal members are erected in the horizontal direction, a scaffold plate is erected between adjacent horizontal members, and a vertical support and a horizontal handrail frame are similarly provided between the building materials. One or a plurality of sets of scaffold frames on which handrails are provided are vertically arranged. In this case, for example, Japanese Patent Application No. 7-279 discloses a framed scaffold using a handrail as a connection between building materials.
No. 402 has been developed.

The handrail includes vertical rods on both sides, a horizontal handrail rod connecting the upper ends of the two vertical rods, a horizontal handrail rod connecting the middle of the two vertical rods, and mounting brackets provided at the upper and lower positions of the vertical rods. Are integrally formed, and the handrail is connected to a building material via a mounting bracket.

[0005]

According to the above-mentioned conventional scaffold, safety is ensured because handrails are provided between building materials corresponding to the scaffold plates, but there are the following disadvantages.

First, since both vertical rods and the upper and lower handrail rods are integrally formed, the weight is heavy, and it is difficult to install the handrail between building materials, it is troublesome, and the installation work is performed by one person. May not be possible, and the workability of attaching and detaching is significantly reduced.

Second, the handrail itself becomes large and bulky, so that it is inconvenient to transport and store it, and the storage space is limited.

Third, when a large handrail is integrally attached to the building material after the building material has been assembled, the handrail cannot be turned in various directions due to the limited space between the building materials. Difficult and cumbersome.

Therefore, an object of the present invention is to easily and smoothly attach or detach a building frame composed of a building material and a cross member, to allow free alignment without being restricted by an installation space, and to realize transportation and transportation. An object of the present invention is to provide a handrail mounting device on a framework scaffold that can be easily stored and reduced in weight.

[0010]

Means for Solving the Problems In order to achieve the above object, a means of the present invention is to erect a plurality of building frames composed of building materials and cross members in the horizontal direction, and to provide a scaffold plate between the cross members. In a scaffold frame in which one or a plurality of vertical scaffold frames each having a vertical handrail and a horizontal handrail frame interposed between each building material are vertically erected, the above-mentioned struts are used as horizontal members or building materials. A first mounting member for mounting, a second mounting member for mounting on the building material, and a third mounting member for mounting the end of the handrail frame to the support;
The support is attached to the building frame via the second attachment member, and then the handrail frame is attached to the support via the third attachment member.

In this case, the first mounting member is a bracket formed by bending a plate material in a substantially U-shape fixed to a column, a holding groove formed at the lower end of the bracket and engaging with the outer surface of the building material, and a holding groove for holding the first mounting member. It is preferable that the projection is formed of a projection facing the groove and an engagement groove formed at the lower end of the bracket and fitted to the upper surface of the cross member. Then, a locking pin or a long hole for attaching the baseboard to the outer surface of the bracket and a stopper for restricting the baseboard from coming off may be provided.

In the above means, the first mounting member may include a support plate laterally connected to the support, a holding groove formed on a side portion of the support plate and engaging with an outer surface of the building material, A locking plate coupled to an outer end of the plate and having an engagement groove engaged with the upper surface of the cross member; a guide provided on the locking plate; and a wedge inserted into the guide and facing the engagement groove And may be provided.

[0013] Similarly, the first mounting member is composed of a support rod connected to the middle of the support column in the lateral direction, and a hook provided downward at the end of the support rod and fitted to the socket on the building material side. It may be.

Similarly, as the second mounting member, a plate-like bracket mounted on the column in the lateral direction, a holding groove formed on the outer surface of the bracket and engaging with the outer surface of the building material, Preferably, the guide includes a guide provided and a wedge inserted into the guide and facing the holding groove. Similarly,
The second mounting member includes a support rod connected to a lower portion of the support column in a lateral direction, and a hook provided downward at an end of the support rod and fitted to a socket on the building material side.

Further, it is preferable that the third mounting member is provided on the support column in the lateral direction, and is constituted by a locking pin that fits into an elongated hole formed at the end of the handrail frame. Similarly, the third
The attachment member may be a ring provided at the upper end of the column to insert a rope constituting a handrail frame or a semicircular joint ring.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

Embodiments according to the present invention are shown in FIGS.
The first pattern shown in FIG. 17 and the second pattern shown in FIGS.
And the third pattern shown in FIG.

The basic configuration of the handrail mounting device according to each embodiment is, as shown in FIGS. 1, 16, 17 and 21, respectively, a building comprising a building material 1 and a cross member 2. A plurality of frames 3 are erected in the horizontal direction, a scaffold plate 4 is erected between the horizontal members 2, and a handrail 7 including a vertical support 5 and a horizontal handrail frame 6 is erected between the building materials 3, 3. 8 is used for a framed scaffold consisting of one or a plurality of columns in the vertical direction, and the vertical support 5 is a first mounting member A to be mounted on the cross member 2 or the building material 1.
A second mounting member B for mounting the lower part of the building material 1 and a third mounting member C for mounting the end of the handrail frame 6 to the vertical support 5
And attaching the vertical support 5 to the building frame 3 via the first and second mounting members A and B, and then mounting the handrail frame 6 to the vertical support 5 via the third mounting member C. It is characterized by the following.

Hereinafter, each embodiment will be described in more detail with reference to the drawings.

As is well known, the building frame 3 comprises a pair of front and rear building materials 1, 1 standing upright, a building material 1, 1 and a horizontal member 2 horizontally connected between the building materials 1, 1. As shown in FIG. 16, the scaffold plate 4 is provided on the cross member 2 via hooks 9 in the left and right lateral directions. Further, a handrail 7 is erected in the lateral direction between the left and right building materials 1 in each building frame 3.
Is composed of a pair of left and right vertical supports 5,5 and a horizontal handrail frame 6 detachably mounted between the vertical supports 5,5. A scaffolding frame 8 is constituted by the building frame 3, the scaffolding plate 4, and the handrail 7, and the scaffolding frame 8 is arranged in one or more stages in the horizontal and vertical directions and arranged on a building scaffold or a civil engineering work site. Or it constitutes a framework scaffold used as a shoring.

In the above-mentioned scaffolding scaffolds, the handrails 7 are provided to secure safety. However, it is preferable to provide a baseboard 10 for closing a gap formed on one or both sides of the scaffold plate 4. For example, as shown in FIG. 16, the skirting board 10 is composed of a board-like skirting body 11 standing upright in the vertical direction and a gap closing plate 12 provided at the lower part of the skirting body 11 in the horizontal direction. Is connected to the vertical support 5 of the handrail 7 and the cross member 2 of the building frame 3 via a first mounting member A, which will be described later, whereby the gap closing plate 12 is connected to the scaffold plate 4. Is in contact with the upper surface of the

In this case, the first mounting member includes a locking pin 13 and a stopper S, as will be described later, and the baseboard 10 includes an elongated hole 14 formed at an end of the baseboard body 11. By lowering the baseboard body 11 while fitting the pins 13 into the slots 14, the baseboard 10 is attached by the locking pins 13 and the slots 14, and the baseboard 10 comes out upward by the stopper S. Is prevented.

Next, an embodiment of the handrail mounting device according to the first pattern shown in FIGS. 1 to 16 will be described in detail.

As shown in FIGS. 1, 9 and 10, a single handrail 7 according to this embodiment has a pair of left and right vertical supports 5,5 and a horizontal support between the vertical supports 5,5. And a lateral handrail frame 6 detachably connected in the direction. The handrail frame 6 may be composed of a single support, but it is vertically installed between the upper and lower two supports 6a, 6b and the support 6a, 6b so that the ends are rotatably supported. T-shaped long holes 15 are formed at both ends of each of the columns 6. On the other hand, a pair of upper and lower locking pins 16, 16 is projected from the vertical support 5, and the long hole 15 and the locking pin 16
And a third mounting member C.

Further, a first mounting member A and a lower second mounting member B are provided substantially in the middle of the vertical support 5, and the vertical support 5 holds the building material 1 on the horizontal member 2 while holding the building material 1. Mounting member A
The lower part of the vertical support 5 is also connected to the building material 1 via the second mounting member B.

The handrail frame 6 and the pair of vertical support columns 5 and 5 are separated in advance, and when connecting the two, first, the long hole 15 is fitted to the locking pin 16 with one of the columns 5. Then, one side of the handrail frame 6 is joined from an oblique direction, and the other end of the handrail frame 6 is fixed to the other support 5 while rotating the handrail frame 6 with the locking pin 16 as a fulcrum. 16 and an elongated hole 15.

As shown in FIGS. 9 to 11, the first mounting member A is formed on a bracket 17 which is fixed to the vertical support 5 by welding or the like and is formed by bending a plate material into a substantially U-shape, and the lower end of the bracket 17. A holding groove 18 that engages with the outer surface of the building material 1, an engaging groove 19 that is also formed at the lower end of the bracket 17 and fits on the upper surface of the cross member 2, It is composed of a holding groove 18 and a projection 20 facing the same. The bracket 17 holds the building material 1 and the holding groove 1.
The building material 1 is sandwiched between the projections 8 and the projections 20 to prevent backlash. Similarly, the bracket 17 is fitted to the cross member 2 via the engagement groove 19 to prevent the bracket 17 from moving downward.

A locking pin 13 for attaching the baseboard 10 to the outer surface of the bracket 17 and a stopper S for restricting the baseboard 10 from slipping upward are provided. Lock pin 13 is baseboard 1
The bracket 17 may be provided with an elongated hole into which the locking pin 13 is fitted.

The stopper S includes two upper and lower guide pieces 21 and 21 standing on the surface of the bracket 17 and guide pieces 21 and 21.
A guide rod 22 inserted vertically and rotatably into the housing 21;
And a stop pin 2 protruding below the guide rod 22.
As shown in FIG. 16, when the skirting board 10 is mounted via the locking pin 13, the locking piece 23 is rotated to be coupled to the upper end of the skirting board body 11 of the skirting board 10. . Thus, when the baseboard 10 moves upward by an external force, the locking pin 24 engages with the lower guide piece 21 to prevent the baseboard 10 from slipping upward.

The projection 20 provided on the bracket 17 is formed by partially notching the bracket 17 and bending the notch piece inward, but the projection members may be joined by welding or the like. As shown in FIG. 12, a second mounting member B provided at a lower portion of the vertical support 5 is formed on a plate-like bracket 24 which is mounted on the vertical support 5 in a lateral direction by welding or the like, and on an outer surface of the bracket 24. Holding groove 25 engaging with the outer surface of building material 1
A guide 26 provided at the outer end of the bracket 24;
6 and a wedge opposed to the holding groove 25. Thus, the bracket 24 is applied to the building material 1 through the holding groove 25, and the wedge 27 is driven into the building material 1. The wedge 27 and the holding groove 25 sandwich the building material 1, and the vertical support 5 is moved along the building material 1. It is to be combined.

As described above, the third mounting member C
Consists of a locking pin 16 and a long hole 15, but is preferably formed in a structure shown in FIGS.

The locking pin 16 shown in FIGS. 13 and 14 is a pin body 16a and a flange 1 fixed to an end of the pin body 16a.
6b and a nut 16c. In this case, the flange 16b is formed in a rectangular shape, and is set so as to be inclined by 45 degrees with respect to the axis of the vertical support 5. The long hole 15 is substantially equal in width to the flange 16b, and has a deep groove 15a having a U-shaped cross section or a long groove 15b in the lateral direction.
It is composed of The locking pin 16 inserts the flange 16b through the deep groove 15a, and thereafter moves the pin main body 16a to the long groove 15b so as not to come off.

By the way, when inserting the flange 16b into the long hole 15, the handrail frame 6 is inclined by 45 degrees, and the angle of the long hole 15 is adjusted to the angle of the flange 16b. And a long hole 15
When the handrail frame 6 is rotated after the flange 16b is inserted therein, the handrail frame 6 does not come off from the flange 16b. Further, as shown in another embodiment of FIG.
The nut 16c and the nut 16c may be detachably connected to the pin body 16a. In this case, the flange 16b and the nut 16c are detached after the handrail 7 is assembled, and the handrail frame 6 can be detached independently.

Next, a frame scaffolding, particularly a handrail mounting process using the handrail mounting device according to the first pattern will be described with reference to FIGS.

FIGS. 1 and 2 show an initial state in which the lower scaffold frame 8 has already been assembled, and another upper scaffold frame 8 is assembled above the scaffold frame 8. In this state, the operator connects one vertical support 5 of the handrail 7 on the scaffold plate 4 to the building material 1 via the first and second attachment devices A and B.

Next, as shown in FIG. 3, the left side of the handrail frame 6 is hooked to the locking pin 16 of the left column 5 via the elongated hole 15 and joined.

Next, as shown in FIG. 4, the right side of the handrail frame 6 on the scaffold
5 and 6, and further, as shown in FIG. 5 and FIG.
Then, the handrail frame 6 is rotated upward with the fulcrum as a fulcrum, and then the right vertical support 5 is fixed to the building material 1 via the first and second mounting members A and B. Further, as shown in FIG. 7, the upper scaffold plate 4 is lifted on the lower scaffold plate 4, and this scaffold plate 4 is hooked on the cross member 2 of the building frame 3 and mounted. In FIG. 7, the framed scaffolding is configured in the vertical direction. However, the large framed scaffold shown in FIG. 8 can be configured by assembling the scaffolding frames 8 in the vertical and horizontal directions in the same manner as described above. .

When the handrails 7 are assembled as described above, since the vertical support 5 and the handrail frame 6 are separated, they can be individually and sequentially assembled one by one. Transport is easy, and workability is improved. Further vertical support 5
The handrail frame 8 can be easily turned even if the space between the columns 1 and 1 is narrow, and can be mounted without being restricted by the work space.

Next, in the framework scaffolds shown in FIGS. 17 to 20, the scaffolding frame 8 is the same as the case of FIG. 1 in that it comprises the building frame 3, the handrail 7 and the scaffold plate 4, but the handrail frame constituting the handrail 7 Figure 20
Is constructed as a parent rope 30 shown in FIG. Further, the first, second, and third attachment members for attaching these handrails 7 are changed.

As shown in FIGS. 17 and 18, a first mounting member A used for the handrail 7 shown in FIG. 17 is composed of a support plate 31 joined to the vertical support 5 in the horizontal direction, and a side of the support plate 31. A retaining groove 32 formed in a portion and engaging with the outer surface of the building material 1, a locking plate 34 having an engaging groove 33 coupled to the outer end of the support plate 31 and engaging with the upper surface of the cross member 2, A guide 35 provided on a locking plate 34;
And a wedge 36 opposed to. Thereby, the holding groove 32 is fitted to the outer surface of the building material 1, the horizontal member 2 is sandwiched between the engaging groove 33 and the wedge 36 from above and below, and the vertical column 5 is connected to the building frame 3 via the support plate 31. Is what you do.

Similarly, a first mounting member A used for the handrail 7 shown in FIG. 21 has a support rod 37 connected to the middle of the vertical support 5 in the horizontal direction, and a lower end on the end of the support rod 37. A hook 39 provided and fitted to the socket 38 on the building material 1 side
It consists of: And hook 39 to socket 3
The vertical support 5 of the handrail 7 is erected along the building material 1 by fitting into the inside 8.

Further, as shown in FIG. 19, a second mounting member B used for the handrail 7 shown in FIG. 17 includes a plate-shaped bracket 40 mounted on the vertical support 5 in the horizontal direction, and a bracket 40.
Holding groove 41 formed on the outer surface of the building material and engaged with the outer surface of the building material 1
And a wedge 43 inserted into the guide 42 and opposed to the holding groove 41. Thereby, the holding groove 41 and the wedge 43
Thus, the column 5 is held by the bracket 40, and the column 5 is held through the bracket 40, thereby preventing the vertical column 5 from falling and rattling.

Similarly, a second mounting member B used for the handrail 7 in FIG. 21 is provided with a support rod 44 connected to the lower part of the support column in the lateral direction and a downward end at the end of the support rod 44. And a hook 46 fitted to the socket 45 on the building material 1 side. The hook 46 is fitted into the socket 45 to prevent the vertical support 5 from falling and rattling.

Similarly, the third mounting member C used for the handrail 7 shown in FIGS. 17 and 21 is a ring or a half which is provided at the upper end of the vertical support 5 and inserts a main rope 30 made of a rope constituting the handrail frame 6. It is composed of a circular joint ring 44.

The handrail 7 shown in FIGS. 17 and 12 is also similar to the above-mentioned case, in which the vertical support 5 is connected to the building material 1 and then the master rope 30 is mounted on the support 5.

[0046]

According to the present invention, the following effects can be obtained.

(1) According to the invention of each claim, since the handrail is composed of the support and the handrail frame independently, the support can be attached to the building frame independently, and the handrail frame can be provided later. Can be attached to the support. At this time, since the supporting column and the handrail frame are independent of each other, the weight can be reduced, so that the mounting and dismounting operations of the respective columns are easy, and the speed-up can be achieved.

(2) Similarly, since transport and storage can be performed independently, it is not bulky, can be stored compactly, and is not restricted by installation space. Similarly, the direction can be freely changed even in a narrow space, and the handrail frame can be easily attached to the vertical support even if the space between the building materials is narrow.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a framework scaffold using a handrail mounting device according to an embodiment of the present invention.

FIG. 2 is a front view of a framework scaffold showing a handrail attaching process.

FIG. 3 is a front view of a framework scaffold showing a handrail attaching process.

FIG. 4 is a front view of the framework scaffold showing a handrail attaching process.

FIG. 5 is a front view of the framework scaffold showing a handrail attaching process.

FIG. 6 is a front view of the framework scaffold showing a handrail attaching process.

FIG. 7 is a front view of the framework scaffold showing a handrail attaching process.

FIG. 8 is a front view of the framework scaffold showing a handrail attaching process.

FIG. 9 is an enlarged front view of a handrail support.

FIG. 10 is an enlarged side view of the column.

FIG. 11 is an enlarged perspective view of a first mounting member.

FIG. 12 is a perspective view of a second attachment member.

FIG. 13 is a perspective view of a third attachment member.

FIG. 14 is a front view of FIG.

FIG. 15 is a perspective view of another second mounting member.

FIG. 16 is a perspective view showing a state in which a baseboard is attached to a first attachment member.

FIG. 17 is a schematic side view of a handrail according to another embodiment.

18 is an enlarged perspective view of a first attachment member of the handrail of FIG.

FIG. 19 is an enlarged perspective view of the second attachment member.

FIG. 20 is an enlarged perspective view of the third attachment member.

FIG. 21 is a perspective view of a handrail according to another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 building material 2 horizontal member 3 building frame 4 scaffold plate 5 vertical support 6 handrail frame 7 handrail 8 scaffold frame 10 baseboard 13 locking pin 17 bracket 18 holding groove 19 engaging groove 20 projection A first mounting member B first Second mounting member C Third mounting member S Stopper

Claims (9)

[Claims] 1. A plurality of building frames comprising a building material and a horizontal member are erected in the horizontal direction, a scaffold plate is erected between the horizontal members, and a handrail comprising a vertical support and a horizontal railing frame is provided between the building materials. In a framed scaffold in which one or more sets of erected scaffolding frames are vertically set, a plurality of the struts are attached to a horizontal member or a building material, and a second attachment member is attached to the building material. A third mounting member for mounting the end of the handrail frame to the support, mounting the support to the building frame via the first and second mounting members, and then attaching the handrail frame to the support via the third mounting member. A device for attaching a handrail to a framework scaffold, wherein the device is attached. 2. A first mounting member comprising a bracket formed by bending a plate material in a substantially U-shape fixed to a column, a holding groove formed at a lower end of the bracket and engaging with an outer surface of a building material, and the holding groove. The handrail mounting device for a scaffolding scaffold according to claim 1, wherein the device comprises a projection opposed to the handrail and an engagement groove formed at the lower end of the bracket and fitted to the upper surface of the cross member. 3. The handrail mounting device according to claim 2, wherein a locking pin or a long hole for attaching the baseboard to an outer surface of the bracket and a stopper for restricting the baseboard from coming off are provided. 4. A first mounting member comprising a support plate laterally coupled to a support, a holding groove formed on a side of the support plate and engaging with an outer surface of a building material, and an outer end of the support plate. A locking plate having an engaging groove engaged with the upper surface of the cross member, a guide provided on the locking plate, and a wedge inserted into the guide and facing the engaging groove. The handrail mounting device for a framework scaffold according to claim 1. 5. A first mounting member comprising: a support rod connected to a middle of a support column in a lateral direction; and a hook provided downward at an end of the support rod and fitted to a socket on the building material side. The handrail mounting device for a framework scaffold according to claim 1. 6. A second mounting member, a plate-like bracket mounted laterally to a support, a holding groove formed on an outer surface of the bracket and engaging with an outer surface of a building material, and a second mounting member provided at an outer end of the bracket. 2. The handrail mounting device for a framework scaffold according to claim 1, comprising a guide, and a wedge inserted into the guide and facing the holding groove. 7. A second mounting member comprising: a support rod connected to a lower portion of a support column in a lateral direction; and a hook provided downward at an end of the support rod and fitted to a socket on the building material side. The handrail mounting device for a framework scaffold according to claim 1. 8. The scaffold according to claim 1, wherein the third mounting member is provided on the column in a lateral direction, and is constituted by a locking pin fitted into an elongated hole formed at an end of the handrail frame. Handrail mounting device. 9. The handrail mounting device according to claim 1, wherein the third mounting member is provided at an upper end of the support column and includes a ring into which a rope forming a handrail frame is inserted or a semicircular abutment ring.