JPH0450771Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a safety cover that is used by being fitted over one of the pipe clamps in a cross clamp device in which two pipe clamps are joined in such a manner that their directions intersect. It is related to.

(Prior Art and its Problems) When assembling a temporary work scaffold or the like using steel pipes at a construction site or the like, the intersection portions of the steel pipes are joined together by the above-mentioned intersection clamp device. In this case, the tightening bolts of the two pipe clamps in the cross-clamping device are exposed, so the worker's clothes could get caught in the tightening bolts of the pipe clamp on the side the worker is passing through, causing an accident. There were inconveniences such as slag from falling concrete adhering to the concrete, making disassembly and reuse difficult.

In order to avoid such inconveniences, covers for pipe clamps have been devised, but conventional covers of this type have been developed, for example, in Japanese Utility Model Publication No. 61-32051 and Japanese Utility Model Application No. 32051.
As described in Publication No. 57-150148, the pipe clamp was constructed to cover only the fastening bolt part, so when a worker etc. touched the cover, it was relatively easy to remove the cover. There was a fear that it might fall off.

In addition, as described in Japanese Utility Model Application Publication No. 57-150148, a C-shaped catch part that fits onto the steel pipe is provided on both sides of the cover body that covers only the fastening bolt part of the pipe clamp. It has been considered to make it difficult for the cover to come off, but such a C-shaped catch part itself is easily deformed and cannot exert sufficient gripping force.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention provides a cross-clamp device in which two pipe clamps are connected in such a way that their directions intersect. The cover is made of an elastic material and has a U-shaped cross section and a C-shaped side surface, which is fitted onto the outside, and has an arcuate inner circumferential edge on both side walls that fits onto the steel pipe to be clamped, and the clamps on both ends. The anti-rotation abutment end abuts on the other steel pipe perpendicular to the steel pipe to which the steel pipe is attached, and the side wall edges between the anti-rotation abutment end and the arcuate inner circumferential edge have a side surface shape. The present invention proposes a safety cover for a cross-clamp device which is inclined in a V-shape.

(Embodiment) An embodiment of the present invention will be described below based on the attached illustrative drawings.
is a cross-clamp device in which two pipe clamps 2 and 3 are connected and integrated by a rivet 4 so as to be orthogonal to each other, and each pipe clamp 2 and 3 is connected to the base of an L-shaped base member 5. An arcuate holding member 7 is pivotally connected to the rising end of the member 5 with a support shaft 6 so as to be openable and closable, and a free end notch of the holding member 7 is pivotally connected to the other end of the base member 5 with a support shaft 8. Fastening bolt 1 that can be fitted into portion 9
0, and a fastening nut 11 that is screwed onto the bolt 10, which is conventionally known. 12
and 13 are temporary steel pipes that are connected perpendicularly to each other by the pipe clamps 2 and 3 of the crossing clamp device 1.

14 is a safety cover of the present invention molded from an elastic material and having a U-shaped cross section and a substantially C-shaped side surface; The open space 17 is located between the pipe clamps 2 and 3, as shown by imaginary lines in FIG.
It has a space capable of housing almost the entirety of any one pipe clamp, for example, the pipe clamp 2, except for the portion adjacent to the other pipe clamp 3.

Further, the safety cover 14 is provided on both side walls 15.
When the pipe clamp 2 is fitted onto the pipe clamp 2 by deforming it against elasticity, the pipe clamp 2
180 which abuts and fits on the circumferential surface of the steel pipe 12 to be fastened.
A steel pipe 13 is provided with an arc-shaped inner peripheral edge 17 that extends over 100 degrees, and has a steel pipe 13 at both ends to which the other pipe clamp 3 is fastened.
Anti-rotation abutting ends 18a and 18b are provided which abut against.

Further, the end edges 20a, 20b of the both side walls 15 between the anti-rotation abutting ends 18a, 18b and the arcuate inner circumferential edge 17 are inclined in a V-shape in side surface shape, and the cover 14 are configured in a symmetrical side shape with an axis of symmetry 22 passing through the center position of the arcuate inner circumferential edge 17 and the center of the opening 21 between the side wall edges 20a, 20b, and the fastening bolt The fitting direction of the cover 14 to the cover 10 does not have to be selected.

The safety cover 19 shown in FIG. 3 has a peripheral wall 16 formed in a U-shape with parallel sides, and is functionally the same as the safety cover 14 described above.

(Operations and Effects of the Invention) According to the safety cover for a cross-clamp device of the present invention, which can be implemented as described above, it is possible to cover not only the fastening bolt part of the pipe clamp but also almost the entire pipe clamp, and the work It can effectively prevent accidents caused by people coming into direct contact with pipe clamps or clothes getting caught in pipe clamps, and also prevent concrete slag from adhering to pipe clamps, making it possible to reuse pipe clamps. It is also possible to avoid situations where the product disappears.

Moreover, since the inner circumferential edges 17 of the side walls 15 rising perpendicularly to the steel tube fit into the steel pipe circumferential surface, a large acting force is required for the elastic deformation of the inner circumferential edges 17 in the expanding direction. Therefore, even if something else gets caught on the cover and is pulled, there is very little risk that the cover will come off the pipe clamp (steel pipe), and it can be used as a highly safe cover.

On the other hand, as described above, since the inner circumferential edges 17 of both side walls 15 rising perpendicularly to the steel pipe are fitted to the circumferential surface of the steel pipe, it is relatively difficult to attach the cover to the pipe clamp. However, according to the present invention, the end edges 20a and 20b of the side walls 15 are inclined in a V-shape to form a V-shaped opening 21. Abutting end 1 for preventing rotation of
By pressing the opening 21 against the steel pipe while applying force to open the covers 8a and 18b, the cover can be relatively easily opened and fitted onto the pipe clamp.

[Brief explanation of the drawing]

FIG. 1 is a side view, FIG. 2 is a cross-sectional plan view in use, and FIG. 3 is a perspective view showing a modified example. 1... Cross clamp device, 2, 3... Pipe clamp, 4... Rivet, 12, 13... Temporary steel pipe, 14, 19... Safety cover of the present invention, 15
...Both side walls, 16...Peripheral wall, 17...Circular inner peripheral edge, 18a, 18b...Abutment end for rotation prevention, 20
a, 20b...Both side wall edges, 21...Opening, 2
2...Axis of symmetry.

Claims (1)

[Scope of Claim for Utility Model Registration] A cross-clamp device in which two pipe clamps are joined in such a way that their directions intersect, and the product is made of elastic material and has a U-shaped cross section and a roughly C-shaped side surface that fits onto one of the pipe clamps. The cover has circular inner circumferential edges on both sides that fit around the steel pipe to be clamped, and anti-rotation abutments on both ends that abut against the other steel pipe orthogonal to the steel pipe to be clamped. 2. A safety cover for a cross clamp device, wherein the side wall edges between the anti-rotation abutting end and the arcuate inner circumferential edge are inclined in a V-shape in side surface shape. A utility model is claimed in which the cover is configured in a symmetrical side shape with an axis of symmetry passing through the center position of the arcuate inner peripheral edge and the center of the opening between the side wall edges. Safety cover for the described cross-clamp device.