JPH0647495U - Scaffolding board - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the operation of locking or unlocking the scaffolding plate mounting clamp. [Structure] The scaffolding plate mounting clamp body 4 is provided with a hook-shaped guide hole 7 which is cut out so that the upper portion is bent substantially horizontally, and a lock metal fitting 8 is freely rotatable near the center of the upper portion of the clamp body 4. The lock metal fitting 8 is provided with a long hole 13 which is inserted into the guide hole 7 when the lock metal fitting 8 is rotated. Then, the guide holes 7 and the lock fittings 8 of the pair of clamp bodies 4 and 4 fixed to both ends of the scaffolding plate 1 respectively.
The lock metal fitting operating shaft 14 is inserted into the elongated hole 13 and mounted. Thus, the lock fitting 8 can be rotated by grasping the lock fitting operating shaft 14 and moving it up and down, and the lock or unlock operation of the clamp can be easily performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a scaffolding board used as a temporary scaffolding for construction work, and more particularly to a scaffolding board having a clamp that facilitates attachment and detachment of the scaffolding board.

[0002]

[Prior art]

 Conventionally, scaffolding plates used as temporary scaffolds are locked to a pipe that is a horizontal member of a building frame that is framed around a building to form a scaffold, and a pipe for locking the pipe. A pair of clamp bodies with body locking holes that are recessed downward are fixed to both ends of the scaffolding plate, and a lock fitting with lock claws on this clamp body can be freely moved in and out of one side of the tube locking hole. It is attached so that the lock claw can be projected and retracted to lock the clamp on the pipe body and unlock the lock.

When removing the scaffolding plate from the building frame, the lock fittings at the four corners are operated one by one from below the scaffolding board to retract the lock claws of the lock fitting, and the lock fitting is hooked to a part of the clamp body. After that, the scaffolding plate is pushed up as gently as possible to remove it from the building frame.

[0004]

[Problems to be solved by the device]

 However, even if you try to gently lift the scaffolding plate after retracting the locking claws of the lock fittings and hanging them on the clamp body, the lock fittings will return to their original positions due to a slight vibration or imbalance. However, even if one of the four clamps at both ends of the scaffolding plate occurs, the scaffolding plate cannot be removed from the building frame, and removal of the scaffolding plate is troublesome.

In addition, recently, there are cases in which the scaffolding plate is moved up and down in tower type support work. At this time, it is necessary to remove the scaffolding plate of the work surface from the upper side and attach it to the building frame of the upper stage from the lower side. It is preferable that the clamp can be locked or unlocked from either the upper side or the lower side of the scaffolding plate, but with the conventional structure, the locking or unlocking operation is not exclusively from the bottom side of the scaffolding plate. It is an inconvenient structure that can not be done, and it was desired that the scaffolding plate could be operated to lock or unlock the clamp from either the lower side or the upper side.

In view of the above points, the present invention makes it easy to lock or unlock the scaffolding plate clamp, and the locking operation can be performed from either the upper side or the lower side of the scaffolding plate. The purpose is to provide a scaffolding board that can be performed.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention secures a pair of clamp main bodies having downwardly recessed tubular body locking holes for locking the tubular body to both ends of the scaffolding plate, and In a scaffolding plate that is locked at the lower part of one side by attaching a locking metal fitting that allows the locking pawl to be retracted and attached to the clamp body and moving the locking pawl of the locking metal fitting forward to lock it to the lower part of the pipe body, The upper end of the lock fitting is rotatably attached to the center of the upper part of the clamp body, and a hook-shaped guide hole is formed on the clamp body side so that the upper part is bent substantially horizontally. The metal fitting side has a long hole that always fits the guide hole when the lock metal fitting is rotated, and has a length approximately equal to the distance between the pair of clamp bodies fixed to the scaffold plate. Locking bracket operating shaft Insert it by inserting it through the guide hole of the main body of the clamp and the long hole of the lock fitting, and rotate the lock fitting by moving the lock fitting operating shaft up and down to attach the lock pawl to one side lower part of the tube locking hole of the clamp main body. It is configured so that it can appear and disappear freely.

[0008]

[Action]

 According to the present invention, the operation of locking or unlocking the pair of clamps at both ends of the scaffold plate can be simultaneously performed by simply moving the lock fitting operating shaft up and down.

To release the locked state of the scaffolding plate clamp, the locking metal fitting operating shaft that is hung between a pair of clamps at both ends of the scaffolding plate is lifted. As a result, the operating shaft of the lock fitting moves upward along the guide hole of the clamp body, and the lock fitting is also rotated so as to lift the lock fitting, and the lock claw retracts from the tube locking hole of the clamp body. , The lock can be released. Furthermore, if the lock metal fitting operating shaft is hooked on a substantially horizontal portion above the guide hole of the clamp body, the lock metal fitting is fixed and the unlocked state is maintained even when the hand is released. Therefore, when the lock fitting operating shaft is grasped and lifted, the clamp is unlocked and the scaffolding plate can be removed from the building frame and lifted up.

Further, when the scaffolding plate is attached to the building frame, the clamp can be locked simply by straddling the scaffolding plate between the building frames and depressing the lock metal fitting operating shaft.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 is a scaffolding board used as a temporary scaffolding for construction work, etc., where substantially U-shaped metal fittings 3 are attached to both ends of the tread 2, and a pair of clamp bodies are provided at both ends of the substantially U-shaped metal fitting 3. 4 is fixed by welding.

The clamp body 4 has almost the same shape as the outer peripheral shape of the tubular body 5, for example, a square tube in the case of a square tube, so that the clamp body 4 can be locked to the tubular body 5 which is a horizontal member of a building frame forming a scaffold. Further, in the case of a round pipe, the tubular body locking hole 6 is recessed downward in an arc shape. A guide hole 7 for inserting a lock metal fitting operating shaft, which will be described later, is formed above the side of the tube locking hole 6 of the clamp body 4, and the guide hole 7 is bent at an upper portion thereof substantially horizontally. It has a notched hook shape. It should be noted that the substantially horizontal portion of the guide hole 7 may be slightly inclined downward so that the lock metal operation shaft will not come off easily even if it is dropped and hooked.

Reference numeral 8 denotes a lock fitting for locking the clamp body 4 locked to the pipe body 5 so as not to come off. The upper portion of the lock fitting 8 is near the center of the upper portion of the clamp body 4 by the shaft body 9. The lock claw 10 at the lower end of the lock fitting 8 can be freely retracted and retracted from the lower part of one side of the tubular body locking hole 6 to lock or unlock the clamp. .

Further, a rotation width regulation hole 11 for regulating the rotation width of the lock fitting 8 is formed on the side of the lock claw 10, and the shaft body 12 fixed to the clamp body 4 is regulated in the rotation width. It is inserted into the hole 11 to regulate the rotation width.

Further, a long hole 13 into which a later-described lock fitting operating shaft is inserted is bored above the rotation width restricting hole 11, and the long fitting 13 has the lock fitting 8 centered on the shaft body 9. The guide hole 7 is formed in the clamp body 4 so that the guide body 7 is always inserted in the guide hole 7 when the clamp body 4 is rotated.

Reference numeral 14 denotes a lock metal fitting operating shaft for operating the lock or unlock of the clamp, which has a length approximately equal to the distance between the pair of clamp bodies 4 and 4 fixed to both ends of the scaffold plate 1. The lock fitting operating shaft 14 is inserted into the guide holes 7 of the pair of clamp bodies 4, 4 and the elongated hole 13 of the lock fitting 8 and the retaining rings 15 are attached to both ends thereof.

Then, if the lock fitting operating shaft 14 is lifted, the lock fitting operating shaft 14 can be moved along the guide hole 7, and accordingly, the lock fitting operating shaft 14 is moved to the long hole of the lock fitting 8. 13 Rotate the lock fitting 8 so that it abuts against the peripheral edge, and as shown in FIG. 3, the lock claw 10 is retracted from the tubular body locking hole 6 of the clamp body 4 so that the locked state can be released. Has become. Also, by locking the lock metal fitting operating shaft 14 to a substantially horizontal portion above the guide hole 7 of the clamp body 4, the lock metal fitting 8 can be fixed and the unlocked state can be maintained even if the hand is released. It

Further, when the lock fitting operating shaft 14 is pushed down along the guide hole 7, the lock fitting 8 is rotated downward so that the lock claw 10 is inserted into the tubular body locking hole 6 of the clamp body 4. Can be locked.

When the scaffolding plate 1 is bridged over the building frame, the lock metal fitting operating shaft 14 lies between the end of the scaffolding plate 1 and the tubular body 5 which is a horizontal member of the building frame. Therefore, the operator can reach from either the upper side or the lower side of the scaffolding plate 1 to lock or unlock the clamp.

When removing the scaffolding plate 1, simply by lifting the lock metal fitting operating shaft 14 hung between a pair of clamps at both ends of the scaffolding plate 1, the locking metal fitting 8 rotates upward as shown in FIG. The scaffolding plate 1 can be lifted as it is by moving the clamps unlocked. Further, if the lock metal fitting operating shaft 14 is lifted along the guide hole 7 and laterally moved to a substantially horizontal portion of the guide hole 7 so that the lock metal member operating shaft 14 is hooked and locked, the unlocked state can be maintained even if the hand is released.

When the scaffolding board 1 is attached to the building frame, the lock metal fitting operating shaft 14 is lifted and hung over the building frame, and the lock metal fitting operating shaft 14 is pushed down. 8 can be locked.

[0023]

[Effect of device]

 As described above, according to the present invention, the clamp body 4 fixed to the end portion of the scaffolding plate 1 is provided with the hook-shaped guide hole 7 whose upper portion is bent substantially horizontally, and is axially attached to the clamp body 4. The lock fitting 8 is provided with a long hole 13 that always fits in the guide hole 7 when turning, and has a length substantially equal to the distance between the pair of clamp bodies 4 at both ends of the scaffolding plate 1. The lock metal fitting operating shaft 14 having the above is inserted into the guide hole 7 and the elongated hole 13 and mounted, and if the lock metal fitting operating shaft 14 is lifted along the guide hole 7, the lock metal fitting 8 is rotated upward. When the lock state is released and the lock metal operating shaft 14 is dropped downward along the guide hole 7, the lock metal 8 is rotated downward to be in the lock state. Scaffolding by simply grasping the axis 14 and moving it up and down It can be carried out operation of the lock or unlock the pair of clamping of the end portion at both ends of the simultaneously and easily.

Further, if the scaffold plate is attached and detached by grasping the lock metal fitting operating shaft 14, it is very convenient because the scaffold plate can be attached and detached by one-touch without any unlocking operation of the clamp. Furthermore, since the locking metal fitting operating shaft 14 is located at a position accessible from either the upper side or the lower side of the scaffolding plate 1, it is very convenient to attach and detach the scaffolding plate.

[Brief description of drawings]

FIG. 1 is a front view of a clamp portion showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a view showing a state where the lock fitting of FIG. 1 is retracted.

[Explanation of symbols]

 1 ... Scaffolding plate 4 ... Clamp body 5 ... Tube 6 ... Tube locking hole 7 ... Guide hole 8 ... Lock fitting 10 ... Lock claw 13 ... Long hole 14 ... Lock fitting operating shaft

Claims (1)

[Scope of utility model registration request] 1. A pair of clamp main bodies having downwardly formed tubular body locking holes for locking the tubular body are fixed to both ends of the scaffolding plate, and locking claws are provided on one side lower part of the tubular body locking holes. In a scaffolding plate in which a locking metal fitting that can be retracted and attached is attached to a clamp body, and a locking claw of the locking metal fitting is advanced to engage with a lower portion of a pipe body to be in a locked state, the upper end of the locking metal fitting is clamped. The clamp body is rotatably mounted near the center of the upper part, and a hook-shaped guide hole is formed on the clamp body side so that the upper part is bent substantially horizontally. A long hole is formed so as to always fit through the guide hole when moved, and a pair of lock metal fitting operating shafts having a length approximately equal to the distance between the pair of clamp bodies fixed to the scaffold plate are provided. Clamp body guide hole and lock fitting It is configured to be inserted through the long hole of the lock fitting, and to rotate the lock fitting by the vertical movement operation of the lock fitting operation shaft so that the lock claw can be retracted into one lower part of the tubular body locking hole of the clamp body. Scaffolding board characterized by.