JPH0328114Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to a lifeline attachment device for attaching a lifeline for safely carrying out roof construction work, roof foundation work, etc.

[Background technology]

Traditionally, when constructing a prefabricated house or constructing a roof base, a lifeline has been used to ensure that the work can be carried out safely. However, the lifeline is attached by hooking a carabiner attached to one end of the lifeline directly to the flange hole of the roof beam, which makes it impossible to attach the lifeline in areas without flange holes, making it difficult to work safely. I had the problem of not being able to do it.

[Purpose of invention]

The purpose of this invention is to provide a lifeline attachment tool that allows a lifeline to be attached to any position along horizontal members such as roof beams.

[Disclosure of invention]

The lifeline attachment device of this invention involves threading a threaded rod through the web of the lip groove-shaped body, attaching a knob to one end of the threaded rod on the outside of the body, and pressing the other end of the threaded rod within the body groove. A member is attached, a support is provided protruding from the outer surface of the web of the main body, and a lifeline attachment portion is provided at the tip of the support.

An embodiment of this invention will be described with reference to FIGS. 1 to 7. In other words, this lifeline attachment A is
As shown in FIGS. 1 to 3, a support 2 is erected at the center of the outer surface of the web 1a of the lip groove-shaped main body 1, and a lifeline attachment hole 3 is bored at the tip of the support 2. Further, in the web 1a of the main body 1, a pair of threaded rod insertion holes 4 are bored on both sides of the support 2, a nut 5 is welded to the outside of the insertion hole 4, and a threaded rod 6 is screwed through the holes 4. A knob portion 7 is fixed to the upper end of this threaded rod 6. Further, a pressing member 8 is connected to the lower end of the threaded rod 6 so as to be rotatable around the axis of the threaded rod 6.

FIG. 4 shows a cross-sectional view of the connecting portion between the threaded rod 6 and the pressing member 8. That is, the threaded rod 6 has a disk-shaped outer collar 6a at its lower end. Moreover, the pressing member 8 is
As shown in FIGS. 5a and 5b, it is composed of a pressing member main body 8a and a pressing member 8b. The pressing member main body 8a is
On its upper surface, there is a large-diameter semicircular recess 8c having a radius approximately equal to the diameter of the outer flange 6a, and a radius larger than the radius of the threaded rod 6 and continuous with the edge of the large-diameter semicircular recess 8c and a radius of the outer flange 6a. Semicircular cutout 8 with smaller radius
d, and a semicircular groove 8e into which half of the outer collar 6a can be loosely fitted is formed in the inner wall of the semicircular notch 8d.
Further, a bolt insertion hole 8f is bored between the large-diameter semicircular recess 8c and the outer surface of the pressing member main body 9a. Furthermore, a buffer member 8g made of rubber is attached to the lower part of the pressing member main body 8a. On the other hand, the presser member 8b is
A semicircular notch 8h has a semicircular plate shape large enough to fit loosely into the large diameter semicircular recess 8c, and has a radius on one side edge larger than the radius of the threaded rod 6 and smaller than the radius of the outer collar 6a. At the same time, a semicircular notch 8h is formed with a semicircular notch recessed step 8i in which the outer collar 6a can be loosely fitted at the lower part of the edge of the semicircular notch 8h, and a screw hole 8j is provided on the other side. The threaded rod 6 and the pressing member 8 are connected by inserting the outer flange 6a into the large-diameter semicircular recess 8c, then fitting half of the threaded rod 6 into the semicircular notch 8d, and inserting the outer flange 6a into the semicircular groove. Insert into 8e. Next, by fitting the presser member 8b into the large-diameter semicircular recess 8c, the remaining half of the threaded rod 6 is fitted into the semicircular notch 8h, and the outer collar 6a is inserted into the semicircular notch step 8i. position. Then, by passing the fixing member 9 made of a bolt through the bolt insertion hole 8f and screwing it into the screw hole 8j to connect the presser member 8b to the pressing member main body 8a, the pressing member 8 is prevented from coming off from the threaded rod 6. , and is rotatably connected around the axis of the threaded rod 6.

On the other hand, on the inner peripheral surfaces of both lip pieces 1b of the main body 1,
A buffer member 10 made of rubber is fixed with screws 11.

This lifeline attachment A is used as follows. That is, first, the threaded rod 6 is rotated in a loosening direction using the knob 7 to bring the pressing member 8 into contact with the web 1a side of the main body 1. Next, while tilting the main body 1, insert the upper horizontal flange 12a of the roof beam 12 shown in FIGS. By returning to the upright position shown in the figure, the upper horizontal flange 12a of the roof beam 12 is positioned within the groove of the main body 1, and the vertical web 1
2b is positioned between both lip pieces 1b. Then,
By rotating the threaded rod 6 in the tightening direction using the knob 7 and pressing the upper surface of the horizontal flange 12a with the pressing member 8, the horizontal flange 12a is removed.
Press both sides of the lower surface of the lip piece 1b to the buffer member 10 on the lip piece 1b side. After the lifeline attachment A is fixed to the roof beam 12 in this manner, the carabiner 14, which is slidably engaged with the main rope 13, is hooked into the lifeline attachment hole 3 (FIG. 1). Then, the carabiner provided at one end of the child rope (not shown) is slidably engaged with the main rope 13, and the safety belt (not shown) provided at the other end of the child rope is wrapped around the worker's waist, and Perform construction work and roof foundation work. Removal of lifeline attachment A is performed in the reverse order of the above-mentioned installation procedure.

In this way, the pressing member 8 and the lip piece 1 of the main body 1
Since the lifeline attachment A is attached to the roof beam 12 by sandwiching the upper horizontal flange 12a with the upper horizontal flange 12a,
The lifeline attachment A can be attached to any position along the longitudinal direction of the roof beam 12, and therefore the lifelines such as the main rope 13 can be attached to any position along the roof beam 12, thereby improving the safety of roofing work. You can improve your sexuality.

The pressing member 8 is made up of a pressing member main body 8a and a presser member 8b, and the pressing member 8b is fitted into a large diameter semicircular recess 8c of the pressing member main body 8a, and the pressing member main body 8a is connected to the presser member using a fixing tool 9. By fixing the material 8b, it can be easily assembled. During this assembly, the threaded rod 6 is inserted into each of the semicircular notches 8d and 8h of the pressing member main body 8a and the holding member 8b, and the semicircular groove 8
The pressing member 8 can be easily fixed to the threaded rod 6 by fitting the outer flange 6a into the half-circumferential notched concave stepped portion 8i. In this way, the pressing member 8 can be easily assembled and the threaded rod 6 can be fixed.

[Effect of idea]

According to the lifeline attachment device of this invention, the lifeline can be attached to any position along the horizontal member, and the pressing member can be easily assembled and fixed to the threaded rod.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the invention, FIG. 2 is a bottom view thereof, FIG. 3 is a cross-sectional view of FIG. 1, and FIG. Fifth
Figures a and b are plan views of the main body and presser member constituting the pressing member, and Figures 6 and 7 are explanatory views of their use. 1... Main body, 1a... Web, 1b... Lip piece, 2... Support, 3... Lifeline attachment hole, 6... Threaded rod, 7... Knob portion, 8... Pressing member, 8a...
Pressing member main body, 8b... Pressing member, 8c... Large diameter semicircular recess, 8d, 8h... Semicircular notch, 8e... Half circumferential groove, 8i... Half circumferential notched recessed step, 9... Fixing tool,
12... Roof beam, 12a... Upper horizontal flange,
12b... Vertical web.

Claims (1)

[Scope of utility model registration request] A life line attachment device for attaching to a shaped steel horizontal frame member having a horizontal flange protruding from the upper end of a vertical web toward both sides, the lip groove type allowing the horizontal flange to be freely inserted into the groove by passing the vertical web between the lip pieces. a main body, a threaded rod that is screwed through the web of the main body so as to be freely advanced and retractable in a state perpendicular to the main body, and has a disc-shaped flange at the inner end of the groove of the main body; a knob that is attached to the flange of the threaded rod to move the threaded rod forward and backward; and a knob that is attached to the flange of the threaded rod and presses the upper surface of the horizontal flange as the threaded rod advances, so that both sides of the lower surface of the horizontal flange are attached to the inner periphery of the lip piece of the main body. It comprises a pressing member that is crimped onto the surface, and a support that protrudes from the outer surface of the web of the main body and has a lifeline attachment part at its tip, and the pressing member has a size that allows the collar to fit into the upper surface. A semicircular notch is formed continuously at the edge of the recess and is larger than the radius of the threaded rod and smaller than the radius of the flange, and half of the flange is loosely fitted into the inner wall of the semicircular notch. a pressing member main body formed with a possible semicircular groove, and a semicircular notch formed in a size that can be loosely fitted into the recess, and a semicircular notch larger than the radius of the threaded rod and smaller than the radius of the flange at the edge; A lifeline characterized by comprising a presser member having a semi-circumferential notch recessed step portion into which the collar can be loosely fitted at the lower part of the edge of the cutout portion, and a fixing device that fixes the presser member main body and the presser member. Mounting hardware.