JP3033419U - Locking device for stays on work scaffolds - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To firmly secure a stay and a folding member without rattling, thereby improving the safety of scaffolding. Also,
A wide space below the scaffold is provided to save labor and reduce costs. SOLUTION: A nut, a bolt member screwed to the nut, and a recess for fitting a lateral rod on a supporting side or a supported side are attached to the other end of a stay pivotally supported at one end by a hinge. If the bolts and nuts are installed in a direction that intersects the stay axial direction at an acute angle, and the bolts are deeply screwed into the nuts, the bolts will push the horizontal bar into the recess and lock it. There is.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a stay locking device for a work scaffold for holding a folded member such as a floor plate and legs in a foldable work scaffold.

[0002]

[Prior art]

 In the conventional foldable scaffolds, there were stays to stretch and support folding members such as floorboards and legs, but there was no lock to prevent them from rattling.

[0003]

[Problems to be solved by the invention]

 Therefore, if you stay on the scaffold in a stretched state, the stay and the folding members will rattle and become unstable.For example, if you have stretched your legs, you will need to use a different frame between your legs. There was a problem that the scaffold could not be used safely unless the auxiliary member of the above was stabilized.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a nut, a bolt member screwed to the nut, a support side or a supported side to the other end of a stay pivotally supported at one end by a hinge. A recess for fitting the horizontal bar on the side, and the mounting angle between the bolt and nut is set in a direction that intersects the axial direction of the stay at an acute angle. The material is to lock the horizontal bar by pressing it against the recess. In this way, the stay and the folding member are firmly fixed without rattling, and the safety of the scaffolding can be improved. In addition, it is not necessary to use an auxiliary member such as a foot of a scaffold to prevent the folding member from rattling, which can save the labor and cost. Can be fulfilled.

[0005]

[Embodiment of the invention]

 A stay locking device for a work scaffold according to the present invention is a stay locking device for a work scaffold for holding a floor plate and legs of a foldable work scaffold, and one end of which is hinged. A fixing portion is fixed to the other end of the stay that is rotatably supported, and the fixing portion is provided with a concave portion for locking / fitting a lateral bar on the supporting side or the supported side. In the vicinity, a nut for screwing with a bolt material for pressing and fixing the horizontal bar is fixed, and the mounting angle of the bolt material and the nut is provided in a direction intersecting with the axial direction of the stay at an acute angle. Further, the fixing portion may be composed of an end plate member having a channel-shaped cross section. Usually, when the bolt material is screwed into the nut shallowly, and when the folding member is expanded, the horizontal bar on the supporting side or supported side should be fitted in the recess and the bolt material should be deeply screwed. By pressing the front end of the bolt material against the horizontal bar, the horizontal bar is tightened in the recess so that it can be firmly fixed without rattling.

[0006]

【Example】

 The present invention will be described in detail below with reference to the exemplary drawings. FIG. 1 is a partial front view showing a state in which legs are stretched and fixed from a floor plate of a work scaffold with a stay having a locking device according to the present invention, and FIG. FIG. 3 is a partially enlarged front view showing the vicinity of the lock device, FIG. 3 is a front view of a fixing portion in which a nut is fixed, and FIG. 4 is a left side view of the same.

In the figure, (A) is a floor plate, (B) is a leg, (B1) is a horizontal bar, (X) is a stay, (1) is a locking device, (2) is a hinge, and (3) is a fixed part. End plate member, (4) is a recess, (5) is a nut, and (6) is a bolt material.

The stay (X) has one end rotatably supported on the floor plate (A) by a hinge (2), and has an end plate member (3) having a channel-shaped cross section, which is a fixing portion, fixed to the other end. . The end plate member (3) is provided on the opening side with a recess (4) for locking / fitting the horizontal bar (B1) of the supported leg (B), and other than the recess (4). A nut (5) screwed with a bolt member (6) for pressing and fixing the horizontal bar (B1) in the recess (4) is fixed to the end portion on the opening side of the bolt member (6) and the nut (5). The mounting angle of is set to a direction intersecting with the axial direction of the stay (X) at an acute angle. When the bolt member (6) is deeply screwed into the nut (5) from the outside, the tip of the bolt member (6) reaches the horizontal bar (B1) and presses the horizontal bar (B1) into the recess (4) to lock it. It is possible to

Usually, the lock device (1) is freed while the bolt member (6) is shallowly screwed into the nut (5), and the stay (X) is rotatably hung from the hinge (2). . When the leg (B), which is a folding member, is expanded, the stay (X) is rotated with the hinge (2) at the center, and is locked to the horizontal bar (B1) of the supported leg (B). By fitting the recess (4) of (1) and screwing the bolt material (6) deeply, the tip of the bolt material (6) is pressed against the horizontal bar (B1) and the horizontal bar (B1) is recessed (4). ) And firmly fix it without looseness.

When the leg portions (B) are spread and fixed from the floor plate (A) in this manner, there is no rattling, so that another auxiliary member such as a frame is not required. Therefore, a wide space is provided below the floorboard (A), and the existing desks and chairs in the room can be stored in this space. Therefore, when using it as a scaffolding for indoor construction, the existing desks and chairs can be installed. Even if you don't put it away, you can use it by straddling the scaffolding on top of it. In addition, if the stay (X 1) having the locking device (1) of the present invention is used to fix the folding member of the scaffold in an expanded state, a large space can be saved and the cost can be reduced.

[0011]

[Effect of the invention]

 The present invention is embodied in the form described above and has the following effects.

[0012] The scaffold can be kept in a firmly expanded state without rattling, which improves the safety of the scaffold. Since there is no need to use auxiliary members such as frames for the scaffolding and a wide space is provided, labor can be saved during construction, labor saving and cost reduction can be achieved.

[Brief description of the drawings]

FIG. 1 is a partial front view showing a state in which legs are stretched and fixed from a floor plate of a work scaffold by a stay having an embodiment of the present invention.

FIG. 2 is a partially enlarged front view showing the vicinity of the lock device of FIG.

FIG. 3 is a front view of a fixing portion to which a nut is fixed.

FIG. 4 is a left side view of the same.

[Explanation of symbols]

 1 Locking Device 2 Hinge 3 End Plate Member 4 Recess 5 Nut 6 Bolt Material A Floor Board B Leg B1 Horizontal Bar X Stay

Claims (2)

[Utility model registration claims] 1. A stay locking device for a work scaffold for holding a floor plate or leg of a foldable work scaffold in an expanded state, wherein a stay of which one end is pivotally supported by a hinge. The fixed part is fixed to the other end, and the fixed part is provided with a recess for locking / fitting the supporting side or supported side horizontal bar, and the horizontal bar is pressed / fixed in the vicinity of the concave part of the fixing part. A lock device for a stay in a work scaffold, characterized in that a nut that is screwed with a bolt material that is screwed is fixed, and an attachment angle of the bolt material and the nut is provided in a direction that intersects an acute angle with the axial direction of the stay. 2. The stay locking device for a work scaffold according to claim 1, wherein the fixing portion is constituted by an end plate member having a channel-shaped cross section.