JP2002155632A - Operating rod and method for stretching main rope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operating rod enabling a main rope to be stretched in such a manner as to straddle the roof of a low-rise dwelling house by operations from the ground. SOLUTION: Plural pipes P1-Pn different in diameter are telescoped, and a rope guide frame 6 is provided at the end of the pipe Pn having the smallest diameter. A guide roller 11 is rotatably mounted on the guide frame 6. The two operating rods 1 constituted as above are carried to a position wherein the ridge of the roof is located at the front, and a pilot rope is inserted into the guide frame 6 of each operating rod 1, which is extended long enough to go beyond the ridge of the roof. After that, an operator moves around the low-rise dwelling house while holding one operating rod 1, connects the main rope to one end of the pilot rope in such a state that the pilot rope straddles the roof, allows the pilot rope and the main rope to undergo displacement by pulling down the other end of the pilot rope, contracts each operating rod 1 in order to pull out the guide frame 6 from the end of the main rope, and fixes both ends of the main rope to the ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation rod used for extending a main rope so as to straddle a roof in a low-rise house, and a method of extending the main rope using the operation rod.

[0002]

2. Description of the Related Art In general, when performing repair work or the like on an inclined roof such as a gabled roof of a low-rise house, a main line is stretched across the roof ridge, and the main line and the body of the worker are stretched. The safety belt for working at heights wound around the part is connected with a belt wound by a winder with an emergency stop function, or an auxiliary rope equipped with a grip to ensure the safety of workers. ing.

[0003] Conventionally, when the parent rope is stretched as described above,
Hang the ladder on the eaves of the roof, climb the ladder with the tip of the main rope, move to the position beyond the roof ridge, drop the tip of the main rope to the opposite side of the roof, The method of fixing the part is adopted.

[0004]

However, in the above-described method of stretching the main rope, the safety when climbing a ladder or moving on a sloped roof is not ensured. There is a danger of falling if you step off or slip.

SUMMARY OF THE INVENTION An object of the present invention is to provide an operation rod capable of safely extending a main rope over a roof of a low-rise house by operation from the ground, and a method of extending the main rope using the operation rod. It is to be.

[0006]

In order to solve the above-mentioned problems, in an operating rod according to the present invention, a plurality of pipes having different diameters are connected to each other so as to be extendable and contractible, and a rope guide frame is attached to a tip end of a pipe having a minimum diameter. And a rope guide is provided on the rope guide frame to guide the movement of the rope.

When the main rope is stretched using the operation rods, the two operation rods are carried to a position facing the roof ridge in a low-rise house, and the pilot rope is inserted into the rope guide frame at the tip of each operation rod. Then, extend each operating rod to a position exceeding the height of the roof, hold one operating rod in the upright position, and hold the other operating rod and the tip of the pilot rope in the low-rise housing. Around
After carrying the other operation rod to the position where the pilot rope straddles the roof ridge, connect the master rope to one end of the pilot rope, lower the other end of the pilot rope, replace the pilot rope with the master rope, and A structure is adopted in which each operation rod is contracted while the master rope straddles the roof ridge, both ends of the master rope are pulled out from the rope guide frame, and both ends of the master rope are fixed on the ground.

As described above, by adopting the two operation rods, the master rope can be stretched over the roof ridge, and the stretching is performed from the ground. It can be installed safely.

If the length of the rope guide frame provided at the tip of the operating rod is such that the tip can be engaged with the upper part of the eaves of the roof, the operating rod is contracted, and the rope is attached to the upper part of the eaves. By engaging the leading end of the guide frame, the operation rod in the upright state can be stabilized, and the operation of pulling down the pilot rope and replacing the pilot rope with the master rope can be performed smoothly.

In this case, an eaves protection member extending long in a direction intersecting with the operation rod is provided at the tip of the operation rod, and the rear end of the roller guide frame is positioned on the eaves protection member. The rope guide frame is supported swingably in the up and down direction, and the rear end of the rope guide frame is urged by an elastic member. The guide frame automatically changes its inclination according to the slope of the roof, and the entire lower surface of the tip is supported by the eaves. Therefore, the operation rod in the upright state can be further stabilized, and compared to a case where only the tip of the roller guide frame is brought into contact with the upper surface of the eaves portion,
The pressure for pushing down the eaves tip is low, and damage to the eaves tip can be prevented.

Further, by providing the eaves protection member at the tip of the operation rod, the eaves of the roof and the rain gutter provided along the eaves can be protected.

[0012] When the operating rod is engaged such that the tip of the roller guide frame is engaged with the upper side of the eaves, the operating rod must be contracted after displacing the roller guide frame to the disengaged position.

When the roller guide frame is disengaged, the roller guide frame can be disengaged by pulling the operating rod in a direction in which the tip of the operation guide separates from the eaves. The main rope is inserted through the rope guide frame. Therefore, when the operation rod is pulled, the distal end portion is bent, and the engagement may not be released.

As described above, if the eaves protection member is provided at the tip of the operation rod, one end of the eaves protection member comes into contact with the eaves part by rotating the operation rod about the axis. Since the eaves protection member rotates about the position, the roller guide frame can be easily displaced to the disengaged position.

In the operating rod according to the present invention, when a rotatable guide roller having flanges at both ends is adopted as a roller guide provided on the roller guide frame, resistance at the time of movement of the pilot rope and the master rope is small, and the pilot rope and the master rope are connected. It is possible to smoothly replace the parent rope.

When the parent rope is stretched, the above-described invention uses
Although the operation rod is used, a master rope may be stretched across the roof using one operation rod and a climbing ladder having a rope guide frame at the tip. in this case,
A pilot who inserts a pilot rope into the rope guide frame provided at the tip of the ladder, places the pilot rope on the rope guide provided in the rope guide frame, leans the ladder against the eaves of the roof, and hangs down from the rope guide The tip of the rope is inserted into the rope guide frame at the tip of the operating rod, and extends to a position beyond the roof ridge with the operating rod standing. Thereafter, in the same manner as the parent rope tensioning method, after moving around the low-rise housing with the operation rod and the tip of the pilot rope, carrying the other operation rod to a position where the pilot rope straddles the roof ridge, A master rope is connected to one end of the pilot rope, the other end of the pilot rope is pulled down to replace the pilot rope with the master rope, and the operating rod is contracted while the master rope straddles the roof ridge to provide rope guidance. Pull out one end of the main rope from the frame and fix both ends of the main rope to the ground.

Here, the ladder may be expandable or contractible, or may not be expandable.

In the method of stretching the main rope using one operation rod and a ladder, the work of leaning the ladder after the main rope is stretched can be omitted, and the ladder can be moved by the main rope on the rope guide. Since falling down is prevented, it is possible to safely move up and down.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the operation rod 1 is telescopic by inserting a plurality of pipes P ₁ through P _n with different diameters small diameter pipe into the large diameter pipe in order, the remaining except for pipe P ₁ of maximum diameter the rear end portion of the pipe P ₂ to P _n, as shown in FIG. 3, an engaging pin 2 is movable in a radial direction of the pipe, the elastic member for pressing the engaging pin 2 outward 3 are provided.

On the other hand, an engagement hole 4 is formed at the tip of each of the remaining pipes P _{1 to} P _n-1 except for the minimum diameter pipe P _n ,
Each pipe is held in an extended state by the engagement of the engagement pin 2 with the engagement hole 4.

The extendable operation rod 1 is not limited to the above-mentioned structure. For example, a plurality of pipes having different diameters, which are slidably inserted, may be locked at an extended position.

As shown in FIG. 2, a longitudinal center of the eaves protection member 5 is fixed to the tip of the pipe _{Pn having} the minimum diameter of the operation rod 1. The eaves protection member 5 is a minimum diameter pipe P _n
The rope guide frame 6 extends rearward in the cross direction with respect to the length direction.

The rope guide frame 6 has a pair of side plates 6b on both sides of a bottom plate 6a. The rope guide frame 6 extends long in the crossing direction with respect to the eaves protection member 5, and has a rear end swingably supported in a direction in which the tip moves up and down.
The rope guide frame 6 has an eaves protection member 5 at its rear end.
Are urged by an elastic member 7 composed of a spring in the direction supported by.

In supporting the rope guide frame 6, here,
A pair of guide plates 8 are provided on the upper surface of the eaves protection member 5, a rear end of the eaves protection member 5 is fitted between the guide plates 8, and a rear end of a bottom plate 6 a provided on the rope guide frame 6. ,
Forming a hole 10 in which projecting shaft 9 of a small diameter provided at the distal end of the smallest diameter pipe P _n is inserted with a margin, the inner periphery of the hole 10 of the rope guide frame 6 in contact with a range on the outer periphery of the projecting shaft 9 The rope support frame 6 is pressed toward the eaves tip protection member 5 by an elastic member 7 made of a spring fitted to the protruding shaft 9 so as to freely swing.

A guide roller 11 as a rope guide is rotatably supported between the rear ends of the pair of side plates 6b of the rope guide frame 6. The guide roller 11 has flanges 11 a at both ends, and a part of the outer periphery of the guide roller 11 faces outside from the rear end of the roller guide frame 6.

The rope guide frame 6 has such a length that the tip can be engaged with the upper surface of the eaves of the roof of the low-rise house, and the tip of the rope guide frame 6 has a pad 12 that is in contact with the upper surface of the eaves.
Are supported so as to be swingable about the shaft 13.

The operating rod 1 is constructed as described above, and when the master rope is stretched using the operating rod 1, as shown in FIG. The operation rod 1 and the tripod 20 are carried in.

[0028] Here, the tripod 20, as shown in FIGS. 4 and 5, each upper end portion of the outer periphery three legs 22 of maximum diameter pipe P ₁ can be inserted a cylindrical body 21 of the operating rod 1 A bottomed cylinder 2 rotatably connected and provided below the cylinder 21
3 is connected to each leg 22 by a link 24, and each leg 22
And each of the links 24 is foldable.

A guide cylinder 25 is fixed to one of the three legs 22, and a set screw 27 for fixing an auxiliary leg 26 slidably inserted into the guide cylinder 25.
Are engaged with the guide cylinder 25 by screws.

Further, a bearing 28 is provided above the two legs 22.
, And the drum 29 is rotatably supported by the bearing 28. Pilot ropes L ₀ lightweight thin diameters are wound on the drum 29.

[0031] Pilot rope L ₀ is has a length reaching the earth both ends astride the roof R of the low-rise housing H shown in FIG.

As shown in FIG. 6, the tripod 20 having the above-mentioned structure is set up on the ground, and the cylinder 2 is placed from above the tripod 20.
One of the operation rods 1 is inserted into the operation rod 1, and the lower end thereof is supported by a bottomed cylindrical body 23 to hold the operation rod 1 in an upright state.

[0033] After holding the one of the operating rod 1, pull the pilot rope L ₀ from the drum 29, with inserting the distal end portion of the pilot rope L ₀ the rope guide frame 6,
It is also inserted into the rope guide frame 6 at the tip of the other operating rod 1.

After the insertion of the pilot rope L ₀ , each operating rod 1 is extended to extend beyond the height of the ridge a of the roof R in the low-rise house H, as shown in FIG. 1 and has a distal end portion of the pilot rope L ₀ moves around the low-rise housing H.

At this time, the pilot rope L ₀ is sequentially pulled out from the drum 29, and the weight of the rope is gradually increased by the pulling. However, since the pilot rope L ₀ is thin and lightweight as described above, the other operating rod is used. 1 can be carried relatively easily.

When the other operation rod 1 is carried to a position where it is almost halfway around the low-rise house H, the pilot rope L ₀ extending between the two operation rods 1 moves through the ridge a of the roof R as shown in FIG. It is in a state of straddling.

[0037] When the pilot rope L ₀ to reluctant extend over ridge a roof H, expands and contracts each operation rod 1 is provided with eaves protection member 5 provided at the tip portion along the eaves of the roof R or eaves, And the rope guide frame 6
As shown in FIG. 9, the operating rod 1 is stabilized by engaging the top end of the roof with the upper surface of the eaves of the roof R.

At this time, since the rope guide frame 6 is supported swingably about the rear end, when the tip is engaged with the upper surface of the eaves of the roof R, the rope guide frame 6 is
, And the entire lower surface of the tip portion comes into contact with the upper surface of the eaves portion.

Here, the tip of the rope guide frame 6 is
One of the operating rods 1 is tilted in a state of being engaged with the upper surface of the eaves, and one leg 22 of the tripod 20 supporting the operating rod 1
When the lower end rises above the ground, the auxiliary leg 26 is slid to the position where the lower end abuts on the ground and fixed by tightening the set screw 27 to stabilize the tripod 20 and one of the operation rods 1.

When the leading end of the rope guide frame 6 is engaged with the upper surface of the eaves tip, as shown in FIG.
Connect Shintsuna L ₁ at one end of the _0, pilot rope L ₀
Lowering of the other end, the lifeline L ₁ pulled on the roof R, as shown in FIG. 10, to replace the pilot rope L ₀ and Shintsuna L _1.

At this time, since the pilot rope L ₀ and the master rope L ₁ are guided by the guide rollers 11 as shown in FIG. 11, the movement resistance is extremely small and the replacement can be performed smoothly. Further, since it load in the direction pushed rope guide frame 6 by the tension imparted to the lifeline L ₁ is applied, the load is to be received by the entire contact surface of the tip and eaves portion upper surface of the rope guide frame 6, The load is dispersed, and there is no inconvenience of breaking the eaves.

[0042] As shown in FIG. 10, when the reluctant straddle the Shintsuna L ₁ in building a roof R, disconnect the pilot rope L _0, the engagement of the distal end portion of the rope guide frame 6 against the eaves section to release, contract each operation rod 1, pull out the rope guide frame 6 from the end of Shintsuna L _1.

When releasing the engagement of the rope guide frame 6, the operating rod 1 is rotated about the axis. By this rotation, as shown in FIG. 12, the eaves protection member 5 rotates around one end contacting the eaves portion, and the rope guide frame 6 can be disengaged very easily.

[0044] When pulling out the rope guide frame 6 from the end of the lifeline L ₁ as described above, as shown in FIG. 13, connects the end of the Shintsuna L ₁ to the anchor 30. Anchor 30
Here, a water tank with a lid made of a synthetic resin that is easy to carry is used. Connecting ring 31 is provided in the water tank, which connects the carabiner 33 of the grip 32 mounted on the connecting ring 31 and Shintsuna L _1, the work of laying is completed the lifeline L ₁ by the coupling .

In the work on the roof R, as shown in FIG. 14, a ladder 34 is put on the eaves to climb. At this time, the slide chuck 35 lifeline L ₁ is mounted, the slide chuck 35 to the connected hook 37 of the front end of the auxiliary rope 36 is tightened around the body of the worker aerial safety belt ring Connect to the body to ensure worker safety.

The climb to the roof R, as shown in FIG. 15, looped b to lifeline L ₁ in the vicinity of building a, in the loop b, for example, a carabiner 39 provided at one end of the moving rope 38 And the carabiner 41 of the grip 40 attached to the other end of the moving rope 38 is connected to the ring of the safety belt for working at height.
7 is disengaged to ensure the safety of the worker on the roof R.

Note that, instead of the moving rope 38, a belt winder having an emergency stop function may be used.

[0048] In the embodiment, by contracting the operating rod 1, and to perform the replacement of the pilot rope L ₀ and Shintsuna L ₁ in a state of engaging the distal end portion of the rope guide frame 6 on the upper surface of the eaves portion However, the replacement operation may be performed without contracting the operation rod 1.

[0049] In FIG. 6 to Zhang設方method lifeline L ₁ shown in FIG. 13, it has been to use a joystick 1 two, as shown in FIG. 16, for lifting one operating rod 1 and ladders 34 and may be stretched a lifeline L ₁ using.

The elevating ladder 34, which is not shown in detail in the drawing, is made extendable and contractable, and can extend beyond the height of the ridge a of the roof R. A rope guide frame 50 is attached to one end of the ladder 34. FIG.
As shown in the figure, the rope guide frame 50 has a pair of side plates 50a and 50b having different widths and lengths, and a ladder is formed by one side plate 50a having a short width and length and a clamp plate 51 disposed opposite to the side plate 50a. One of the columns 34a is sandwiched from both sides, and a plurality of bolts 52 penetrating both the side plate 50a and the clamp plate 51 and the nuts which are screw-engaged with the bolts 52 are used to clamp the column 34a so that the rope guide frame 5 is held.
0 is attached to the ladder 34.

A shaft 53 is passed between the pair of side plates 50a and 50b, and a guide roller 54 as a rope guide is rotatably supported by the shaft 53. Above the guide roller 54, a holding pin 55 for preventing a pilot rope or a master rope hung on the guide roller 54 from coming off the rope guide frame 50 is provided.

The holding pin 55 is slidably supported by the other side plate 50b, and is
The tip is pressed toward 4a, and the leading end extends between the other side plate 50b and the support 34a.

When the master rope is stretched using the ladder 34 and the operating rod 1 having the above-described configuration, the pilot rope is inserted into the rope guide frame 50 and hung on the guide roller 54.
The ladder 34 is extended and leans against the eaves of the roof R.

After the tip of the pilot rope hanging from the guide roller 54 is inserted into the rope guide frame 6 at the tip of the operating rod 1, the pilot rod is extended while the operating rod 1 is standing.

[0055] Thereafter, as shown in FIG. 7, around the periphery of the low-rise housing H has a leading end portion of the operating rod 1 and the pilot rope L _0, as in the case shown in FIG. 8, the pilot rope L ₀ roof When straddling the ridge a of R, the operation stick 1
To engage the rope guide frame 6 at the tip with the eaves tip.

[0056] Thereafter, by connecting the Shintsuna L ₁ to the end of the pilot rope L _0, to replace the pilot rope L ₀ and Shintsuna L ₁ as in the case shown in FIG. 10, engagement of the rope guide frame 6 contracting the operating rod 1 after release of engagement, pull the rope guide frame 6 from lifeline L _1, connected to the anchor 30 shown in FIG. 13 the opposite ends of the lifeline L _1.

[0057] In the above embodiment also, it is possible to safely stretched the lifeline L ₁ by the operation from the ground, in order to utilize the ladder 34, leaning against the ladder 34 in Zhang after casting lifeline L ₁ The work can be omitted, and the time required for the preparation work when performing the work on the roof can be reduced.

[0058] Incidentally, as shown in FIG. 14, when climbing on the roof R by attaching the slide chuck 35 lifeline L _1, since the slide chuck 35 to prevent the passage in contact with the retaining pin 55 shown in FIG. 17 In this case, the holding pin 55 is retracted, and after passing through the slide chuck 35, the spring 5
6 to move forward.

[0059]

As described above, according to the present invention, the main rope can be stretched so as to straddle the roof ridge by operating from the ground by using two extendable operation rods. .

[0060] Further, since the extension work is an operation from the ground, the master rope can be safely extended in a short time.

Even in the case of using one operation rod and a ladder, the main rope can be safely extended in a short time by the operation from the ground.

[Brief description of the drawings]

FIG. 1 is a front view of an operating rod according to the present invention.

FIG. 2 (I) is a longitudinal sectional front view of the rope guide frame at the tip of the operating rod shown in FIG. 1, and (II) is a partially cutaway side view.

FIG. 3 is a sectional view showing a part of the operating rod shown in FIG. 1;

FIG. 4 is a longitudinal sectional front view showing a tripod for supporting the operating rod shown in FIG. 1;

FIG. 5 is a plan view of FIG. 4;

FIG. 6 is a perspective view of a preparation state in which a pilot rope is straddled on a roof using an operation rod.

FIG. 7 is a perspective view showing a state where the operation rod shown in FIG. 6 is extended.

FIG. 8 is a front view of a state in which a pilot rope is straddled on a roof.

FIG. 9 is a front view showing a state before replacement of a pilot rope and a master rope.

FIG. 10 is a front view showing a state after replacement of a pilot rope and a master rope.

FIG. 11 is a sectional view showing a state in which a rope guide frame at the tip of an operating rod is engaged with an eaves portion of a roof.

FIG. 12 is a plan view showing a state in which the rope guide frame is disengaged from the eaves tip.

FIG. 13 is a front view showing a completed state of the extension of the parent rope.

FIG. 14 is a front view showing a state in which a worker climbs a roof;

FIG. 15 is a front view showing a working state on a roof.

FIG. 16 is a front view showing another embodiment of the parent rope stretching method.

FIG. 17 is a perspective view showing a part of the ladder shown in FIG. 16;

[Explanation of symbols]

1 operating rod P ₁ to P _n pipe 5 eaves protective member 6 Rope guide frame 7 elastic members 11 guide rollers 11a flange 34 ladders 50 Rope guide frame 54 guide rollers H low-rise housing a building

Continued on the front page (72) Inventor Kimio Shirato 3-2-14 Sakuragawa, Naniwa-ku, Osaka City Inside Midori Safety Co., Ltd. (72) Inventor Yoshiyuki Kamashi 1-17-14 Shindaka, Yodogawa-ku, Osaka Sanko Corporation Inside

Claims (7)

[Claims] 1. A plurality of pipes having different diameters are connected to each other in a stretchable manner, and a rope guide frame is attached to a tip end of the pipe having a minimum diameter.
An operation rod for laying a parent rope with a rope guide that guides the movement of the rope in the rope guide frame. 2. The operation rod according to claim 1, wherein the rope guide frame has a length capable of engaging a tip portion with an eaves portion of a roof. 3. An eaves protection member extending long in a direction intersecting the pipe is attached to a tip end of the pipe having the minimum diameter, and a rear end of the rope guide frame is positioned above the eaves protection member. 3. The operation according to claim 2, wherein the rope guide frame is supported by the elastic member in a direction in which the rope guide frame is supported by the eaves protection member. rod. 4. The operation rod according to claim 1, wherein the rope guide comprises a rotatable guide roller having flanges at both ends. 5. An operation rod that can be extended and retracted is carried to a position facing the roof ridge of a low-rise house, and a pilot rope is placed on the ground in a rope guide frame at the tip of each of the operation rods in a contracted state. After insertion, each operating rod is extended to a position exceeding the height of the roof, and one operating rod is held in an upright state. After turning around and carrying the other operating rod to the position where the pilot rope straddles the roof ridge, connect the master rope to one end of the pilot rope and pull down the other end of the pilot rope to connect the pilot rope and the master rope. Replacement, contracting each operating rod while the master rope straddles the roof ridge, pulling both ends of the master rope from the rope guide frame, and fixing both ends of the master rope to the ground Method. 6. The master rope according to claim 5, wherein each of the operation rods is contracted, and the pilot rope is replaced with the master rope in a state where the tip of the rope guide frame is engaged with the eaves of the roof. Stretching method. 7. A lifting ladder and an extendable operation rod are carried to a position facing the roof ridge in a low-rise house, and a pilot rope is inserted into a rope guide frame provided at a tip of the ladder. The ladder is leaned against the eaves of the roof, the tip of the pilot rope hanging from the rope guide frame is inserted into the rope guide frame provided at the tip of the operating rod, and the operating rod is raised with the operating rod upright. It extends to a position that exceeds the height of the wing, moves around the low-rise house with its operating rod and the tip of the pilot rope, and carries the other operating rod to the position where the pilot rope straddles the roof ridge. A main rope is connected to one end of the rope, and the other end of the pilot rope is pulled down to replace the pilot rope with the main rope. Is pulled out from the rope guide frame by pulling one end of the main rope, and both ends of the main rope are fixed on the ground.