JP6507463B1 - Rope pulling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small and space-saving rope pulling device. SOLUTION: An input shaft 7 capable of detachably connecting an output shaft of a rechargeable electric driver and an output shaft 8 coupled with a pulley 20 capable of detachably winding a rope are added to the input shaft 7. The differential reduction type reduction gear 5 that decelerates the rotation and transmits it to the output shaft 8 is mounted on the support 2. The support 2 is provided with an inlet portion 32 and an outlet portion 33 forming an inlet passage portion and an outlet passage portion of a rope wound around a pulley 20. The input shaft 7 of the reduction gear 5 is equipped with a ratchet mechanism that allows only normal rotation and prevents reverse rotation to restrict the entrance side of the rope from being pulled outward, and release means that releases the restriction of the ratchet mechanism. The support 2 is provided with an openable / closable pulley cover, rope hooking portions 80, 81, and rope attachment holes for attaching other ropes. [Selected figure] Figure 7

Description

  The present invention relates to a rope pulling apparatus, and more particularly to a rope pulling apparatus for pulling a rope by power.

  If you want to load or unload between the ground and the roof of the building, hang the hanging load on the lower end of the hanging rope hanging from the hanging tool installed on the roof parapet, and the other end of the hanging rope The hoisting and lowering is performed by a rope winding device such as a winch installed on the roof on the side to raise and lower the suspended load. However, since the conventional rope winding-up device was a large-scaled device provided with a motor drive unit and a winding-up drum, there were cases where installation on the roof was difficult. In addition, if there is no commercial power supply on the roof, there is the inconvenience that the rope winding device can not be used.

Japanese Patent Application Laid-Open No. 6-206698

  The present invention has been made in view of the problems of the prior art described above, and it is an object of the present invention to provide a small and space-saving rope pulling apparatus. Another object of the present invention is to make it possible to use in a place where there is no facility for commercial power.

In the invention according to claim 1,
It has an input shaft that can connect the output shaft of the rotary electric tool in a detachable manner, and an output shaft that is connected to a pulley that can be wound on a rope in a detachable manner, and reduces the rotation applied to the input shaft and outputs it Differential reduction type reduction means transmitting to the shaft,
A support on which the speed reducing means is mounted;
An inlet portion and an outlet portion provided on the support to form an inlet and an outlet of the rope wound around the pulley;
A separating part provided between the inlet and the outlet and the pulley for separating the inlet side rope and the outlet side rope;
Limiting means provided on the decelerating means or on the support to limit the entry side of the rope from being pulled out;
Equipped with
An inlet passage portion and an outlet passage portion are formed in the inlet portion and the outlet portion, and the inlet portion and the outlet portion are disposed opposite to each other at an interval so that the inlet passage portion and the outlet passage portion face each other.
It is formed so that the rope can be put in and out between the outside and the inlet passage part through the clearance between the inlet and the outlet part and the rope can be put in and out between the outside and the outlet passage part,
It is characterized by
In the invention according to claim 3 ,
That the separation part is loosely inserted in the groove around which the rope of the pulley is wound,
It is characterized in.
In the invention 請 Motomeko 4,
It has an input shaft that can connect the output shaft of the rotary electric tool in a detachable manner, and an output shaft that is connected to a pulley that can be wound on a rope in a detachable manner, and reduces the rotation applied to the input shaft and outputs it Differential reduction type reduction means transmitting to the shaft,
A support on which the speed reducing means is mounted;
An inlet portion and an outlet portion provided on the support to form an inlet and an outlet of the rope wound around the pulley;
Limiting means provided on the decelerating means or on the support to limit the entry side of the rope from being pulled out;
Equipped with
The limiting means is
A rope abutment disposed in a path through which the rope passes between the pulley and the outlet, and in which the rope abuts;
When the rope is going to move in a direction to be pulled out from the entrance, it bites into the rope in contact with the rope abutment to restrict movement, and when trying to move in the opposite direction, it moves away from the rope With a cam configured to allow
Biasing means for biasing the cam into the rope and
Releasing means for separating the cam from the rope and releasing the restriction;
Only including,
That the rope abutment is loosely inserted in the groove around which the rope of the pulley is wound,
It is characterized in.
In the invention 請 Motomeko 5, wherein,
A rope groove is formed on the outer surface of the rope contact portion on which the rope abuts,
It is characterized by
In the invention 請 Motomeko 6,
An inlet passage portion and an outlet passage portion are formed in the inlet portion and the outlet portion, and the inlet portion and the outlet portion are disposed opposite to each other at an interval so that the inlet passage portion and the outlet passage portion face each other.
The rope can be taken in and out between the outside and the inlet passage through the gap between the inlet and the outlet, and the rope can be taken in and out between the outside and the outlet passage,
It is characterized in.
In the invention 請 Motomeko 8, wherein,
During the inlet mouth and the outlet portion and the pulley is provided with a separating portion for separating the inlet side rope and outlet rope,
Having the rope contact portion integrated with the separation portion,
It is characterized in.
In the invention 請 Motomeko 9,
It has an input shaft that can connect the output shaft of the rotary electric tool in a detachable manner, and an output shaft that is connected to a pulley that can be wound on a rope in a detachable manner, and reduces the rotation applied to the input shaft and outputs it Differential reduction type reduction means transmitting to the shaft,
A support on which the speed reducing means is mounted;
An inlet portion and an outlet portion provided on the support to form an inlet and an outlet of the rope wound around the pulley;
Limiting means provided on the decelerating means or on the support to limit the entry side of the rope from being pulled out;
A separating part provided between the inlet and the outlet and the pulley for separating the inlet side rope and the outlet side rope;
A pulley cover provided on the support for freely opening and closing the front or the front and the side of the pulley;
Lock means for locking and unlocking the pulley cover in the closed state ;
An inlet passage portion and an outlet passage portion are formed in the inlet portion and the outlet portion, respectively, and the inlet portion and the outlet portion are disposed to face each other at an interval with the inlet passage portion and the outlet passage portion facing each other. Yes,
The rope can be taken in and out between the outside and the inlet passage through the gap between the inlet and the outlet, and the rope can be taken in and out between the outside and the outlet passage,
The pulley cover is capable of opening and closing the inlet and outlet sides with the side opposite to the inlet and outlet of the pulley as the opening and closing shaft.
The pulley cover being provided with a baffle which, when locked in the closed state, enters the gap between the inlet and outlet and prevents the rope from coming out of the inlet or outlet passage;
It is characterized in.
In the inventions described in claims 2, 7 and 10,
The inlet passage portion and the outlet passage portion formed in the inlet portion and the outlet portion are in the form of a half cylinder,
It is characterized by

According to the present invention, it is not necessary to incorporate a drive source into the device because the rope can be pulled using the rotary electric power tool as a drive source, and a winding drum is not required since the drive source is wound around the pulley and the device as a whole Can be made smaller. In addition, as the rotary electric power tool, an ordinary tool carried for work can be used, and it is not time and effort to prepare a special drive source. If the rotary electric power tool is made rechargeable, it will not be bothersome to draw the power cord, and it will be usable in places where commercial power is difficult, such as on the roof of a high-rise building. In addition, by using a differential reduction type reduction means having a small size and a large reduction ratio, it is possible to perform a laziness operation when pulling out the rope from the entrance side while reversing the pulley while releasing the restriction means. It can .
Also, since there is provided a separating portion for separating the inlet side rope and outlet rope between the inlet and outlet portions and the pulley, or the outlet side rope during forward rotation of the pulley is caught in the inlet side of the pulley, the pulley It is possible to prevent the entrance side rope from being caught on the exit side of the pulley at the time of reverse rotation .
Further, an inlet passage portion and an outlet passage portion are formed at the inlet portion and the outlet portion, and the inlet portion and the outlet portion are opposed to each other with the inlet passage portion and the outlet passage portion facing each other. Loading / unloading the rope from / to the pulley by allowing the rope to be taken in and out between the outside and the inlet passage through the spaced gap of the outlet and for taking the rope into and out between the outside and the outlet passage. Becomes easy.
Further, if provided with a pulley cover for covering the front or front and side of the pulley openably and flop Rikaba, rope inlet enters the gap between the inlet portion and the outlet portion when locked in the closed state or outlet is provided with the baffle portion of the baffle being detached from the parts, it is possible to prevent the inadvertent release the pool Rika bar rope off the inlet or outlet portion during use.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective view of the rope pulling apparatus based on one Example of this invention (Example 1). It is a front view of a rope pulling apparatus. It is a side view of the rope traction device. It is a plan elevational view of a rope traction device. It is a rear view of a rope pulling apparatus. It is the perspective view which abbreviate | omitted the pulley cover and hinge part of the rope pulling apparatus. It is the side view which abbreviate | omitted the pulley cover of the rope pulling apparatus. It is the perspective view which abbreviate | omitted the pulley cover and pulley of a rope pulling apparatus. (1) in FIG. 9 is a perspective view of the locking member diagram lock-pulleys cover (2) is a front view, (3) is a plan view, (4) is a side view. It is the rear view which abbreviate | omitted the outer cover of the rope pulling apparatus. It is the partially omitted enlarged view which shows the structure of a limitation means. It is operation | movement explanatory drawing of a limitation means. FIG. 13 (1) is an explanatory view of a rechargeable motor-driven driver for driving the rope pulling device, and (2) is a cross-sectional view taken along the line XIII-XIII 'of (1). FIG. 14 (1) is an explanatory view of a manual rotary tool for driving the rope pulling device, and (2) is a cross-sectional view taken along the line XIV-XIV 'of (1). It is explanatory drawing of the usage method of a rope pulling apparatus. It is explanatory drawing of the usage method of a rope pulling apparatus. It is explanatory drawing of the other usage method of a rope pulling apparatus. It is a front view which shows the modification of a rope pulling apparatus. It is a top view of the rope pulling apparatus of FIG. It is a front view which shows the other modification of a rope pulling apparatus. It is explanatory drawing of the usage method of the rope pulling apparatus of FIG. 20, and the pulley cover is abbreviate | omitted. It is explanatory drawing of the usage method of the rope pulling apparatus of FIG. It is the partially broken front view which shows the other modification of a rope pulling apparatus. It is the front view which abbreviate | omitted the pulley cover of the rope pulling apparatus of FIG. It is explanatory drawing of the usage method of the rope pulling apparatus of FIG. 23, and the pulley cover is abbreviate | omitted. It is explanatory drawing of the usage method of the rope pulling apparatus of FIG. 23, and the pulley cover is abbreviate | omitted.

  Hereinafter, the best mode of the present invention will be described based on examples.

Figure 1 is an external perspective view of a rope traction device according to an embodiment of the present invention, FIGS. 2 to 5 is a front view of the rope traction device, a side view, a flat view, rear view, FIG. 6 of the rope traction device omitted perspective view of the pulley cover and the hinge portion, FIG. 7 is a side view omitting the pulley cover rope traction device, FIG. 8 is a perspective view omitting the pulley cover and pulley rope traction device, FIG. 9 (1) of pulley (2) is a front view, (3) is a plan view, (4) is a side view, FIG. 10 is a block diagram of the limiting means in the rope pulling apparatus, and FIG. 11 is a limiting means FIG. 12 is an explanatory view of the operation of the limiting means.

In these figures, reference numeral 1 denotes a power type rope pulling device, which obtains driving force by a rechargeable electric driver carried by a worker and pulls a rope (here, a fiber rope; refer to reference numeral 110 in FIG . 15 and FIG. 16 ). It is possible. 2 of the rope pulling devices 1
Is a plate-shaped support made of aluminum, and has a circular opening 3 (see FIG. 8) near the center and a rope mounting hole 4 as a rope mounting portion on the lower side. 5 is a cylindrical (pancake type) decelerator mounted on the back side of the support 2, and a cylindrical (pancake type) decelerator with a differential decelerating mechanism having coaxial input and output shafts. A closed case 9 made of aluminum, which seals the main body 6 and the reduction gear main body 6 except the input shaft 7 and the output shaft 8, is mounted on the back side of the closed case 9 to limit reverse rotation of the input shaft 7 It includes a restriction means 10 for restricting retraction on the inlet side, and an aluminum dish-like outer lid 11 mounted on the peripheral end of the back surface of the sealing case 9 to seal the main part of the restriction means 10. The limiting means 10 will be described later. The input shaft 7 is exposed at an opening 12 formed at the center of the outer lid 11.

The input shaft 7 is provided with a key groove 14 in a cylindrical shaft hole 13. As shown in FIG. 13, a cylindrical shank 18 with a key groove 17 is provided on a chuck 16 as an output shaft of the rechargeable motor driver 15. The input shaft 7 can be rotated by inserting the shank 18 into the shaft hole 13 and connecting it while fitting the key 19 into the key grooves 14 and 17, and driving the rechargeable motor driver 15. The output shaft 8 projects from the opening 3 of the support 2 to the front side of the support 2 (see FIG. 8) , and a pulley described later is coupled to the end.

  The reduction gear main body 6 incorporates a differential reduction mechanism with a large reduction ratio by a cycloid reduction mechanism or a trochoid reduction mechanism, and decelerates the rotation of the input shaft 7 and transmits it to the output shaft 8. Here, as an example, the reduction gear main body 6 is of a type in which the input shaft 7 and the output shaft 8 rotate in opposite directions, and the input shaft 7 rotates clockwise when viewed from the front side of the rope pulling device 1. Let counterclockwise rotate in the normal direction. For the reduction gear main body 6, for example, a rolling ball type reduction gear, a pin type cyclo reduction gear, or the like in which the input and output shafts are coaxial can be used.

  An aluminum pulley 20 mounted on the front side of the support 2 is coupled to the output shaft 8 of the reduction gear 5. The pulley 20 has a large number of teeth 24, 24... Arranged radially on opposing inner surfaces 22, 23 of an H-shaped groove 21 in which a rope (here, a fiber rope) is wound as shown in FIGS. · And 25, 25 · · · are provided opposite to each other. The tooth-shaped projections 24 ··········· have cross sections in the shape of a mountain, and the height gradually decreases from the inner diameter toward the outer diameter (note that the height from the inner diameter toward the outer diameter The H-shaped groove may be replaced by a V-shaped groove).

  Reference numeral 30 denotes an aluminum rope guide mounted on the upper side of the pulley 20 on the front side of the support 2, and 31 of these is provided spaced above the pulley 20 and is less than a circle around the pulley 20 A rope inlet and outlet that forms an inlet and an outlet of a rope to be wound, and includes an inlet 32 and an outlet 33 that are symmetrically provided opposite to each other at intervals. The inlet portion 32 and the outlet portion 33 are provided so as to rise in an inverted L shape from the support 2, and an inlet passage portion 34 and an outlet passage portion 35 in the shape of a half column are formed inside. The inlet portion 32 and the outlet portion 33 close to the pulley 20 are formed thin in one step to form fitted portions 36 and 37 to which the upper end portion of a pulley cover described later can be fitted. Among these fitted parts 36, 37, on the front side (upper side in FIG. 6) of the inlet passage portion 34 and the outlet passage portion 35 and at the end close to the pulley 20, engagement of a locking member provided on a pulley cover described later. Engaging grooves 38 and 39 are formed in which engaging claws are detachably engaged.

In the rope guide 30, a separation portion provided between the rope inlet / outlet portion 31 and the pulley 20 separates the inlet side and the outlet side of the rope wound around the pulley 20. The separation portion 40 is formed in an L-shape in a side view, the left and right end surfaces of the upper half are inclined surfaces 41 and 42, and the brim portion 43 of the lower half is in the H-shaped groove 21 of the pulley 20. It has been loosely inserted. When loading the rope the rope traction device 1, and insert the inlet side of the rope inlet portion 32, the gap 44 between the outlet 33 to the inlet passage portion 3 4, around weak winding through the left of the separating portion 40 to the pulley 20 The exit side of the rope passes through the right side of the separation portion 40 and is inserted into the outlet passage portion 35 from the gap 44 between the inlet portion 32 and the outlet portion 33 (see FIG. 16).

  Reference numeral 50 denotes a plastic lid-type pulley cover that covers the front and side of the pulley 20 so as to open and close, and the lower end portion of the front side of the support 2 projects forwardly just below the pulley 20 in FIG. It is pivotally supported pivotally by the hinge part 51 provided. The upper end portion of the pulley cover 50 is a U-shaped fitting portion 52 extended upward in FIG. 2 and is detachably fitted on the outside of the fitting portions 36 and 37 of the rope entrance 31. Is possible.

Reference numeral 53 denotes a plastic lock member provided slidably on a back surface side of the fitting portion 52 of the pulley cover 50 in a predetermined range in the vertical direction of FIG. 2 (refer to the arrow A direction and B direction in FIG. The lock is always directed upward (locking toward the engagement grooves 38 and 39) by a pair of left and right compression springs 54 and 55 interposed between a spring seat (not shown) provided on the back side of the pulley cover 50 and the lock member 53. Direction). Long hole 56 near the top of the pulley cover 50 and is engraved, the outer tip portion is loosely fitted in the elongated hole 56 operation section 57 that projects forwardly from the lock member 53 is the outer surface of the pulley Rica bars 50 Projected into At an upper end portion of the lock member 53 in FIG. 9 (2), a locking claw 58 having a triangular cross section is formed. When the lock member 53 is moved downward in FIG. 2 against the spring force of the compression springs 54, 55, the locking claw 58 retracts downward from the lower ends of the fitted portions 3 6 , 3 7 in FIG. The pulley cover 50 can be opened and closed in the rotational directions of arrows C and D in FIG. When the lock member 53 is pushed downward in FIG. 2, the pulley cover 50 is closed, the fitting portion 52 is fitted to the fitted portions 36, 37, and when the lock member 53 is released, the compression spring 54, 55 is biased. The lock claw 58 engages with the engagement grooves 38, 39 and locks in the closed state.

  The limiting means 10 is coupled to the input shaft 7 of the reduction gear main body 6, as shown in FIGS. 10 and 11, in the direction in which the rope is pulled from the inlet 32 to the pulley 20 (see arrow E in FIG. 16). A ratchet mechanism 60 allowing rotation and restraining rotation in the opposite direction (see arrow F in FIG. 16) to restrict the rope from being pulled out from the inlet 32 and release releasing the restriction by the ratchet mechanism 60 Means 61. The ratchet mechanism 60 has a large diameter ratchet gear 62 fitted to the input shaft 7 on the back side of the case 9 and a rotating shaft 63 pivotally supported on the back of the case 9 so as to have a tip end Rotates in the direction of advancing and retracting with respect to the ratchet gear 62, and the rotation direction of the ratchet gear 62 is one direction (the direction in which the input shaft 7, the output shaft 8 and the pulley 20 rotate forwardly. A pawl 64 which permits rotation only in the counterclockwise direction and restricts the rotation in the opposite direction, and is interposed between the tip of the pawl 64 and a spring seat 65 mounted on the back of the case 9 And a compression coil spring 66 for urging the tip of the head in the direction of the ratchet gear 62 (note that the compression coil spring may be replaced by a plate spring).

On the other hand, the releasing means 61 has a pressed portion 67 formed at the rear end of the pawl 64, and a pivot shaft pivotally supported near the pressed portion 67 of the pawl 64 in the back surface of the case 9. It is attached to the tip of the rotating shaft 68 extended outside through the insertion member 70, which is made of plastic and is substantially in the form of a drop, and the insertion hole 70 formed in the outer lid 11 to release the rotation restriction. It includes a plastic operation knob 71 for operation (see FIG. 5). The pressing member 69 is formed so as to protrude like a hook from the vicinity of the rotation shaft 68 and moves closer to the pressed portion 67 by the rotation of the pressing member 69 to press or separate the pressed portion 67. Of the pressing portion 72 for releasing the pressure, the resiliently deformable partial annular portion 73 formed on the opposite side of the pressing portion 72 among the pressing members 69 as viewed from the turning shaft 68, and the middle of the outer periphery of the partial annular portion 73 An engagement protrusion 74 is provided to protrude radially outward in a chevron shape. On the back surface of the case 9, the engagement projection 74 is pivoted about the pivot shaft 68, and when engaged in the first and second two positions P1 and P2, two engagement recesses 75 and 76 are engaged. Is formed. When the engagement projection 74 abuts against the edge portions 77 and 78 of the engagement recess portions 75 and 76 by rotation, the partial annular portion 73 is elastically deformed in an elliptical shape and passes through the edge portions 77 and 78 to engage the engagement recess 75 , 76 and restore to their original shape.

When it is desired to restrict the rotational direction by the ratchet mechanism 60, when the operation knob 71 is turned to the first position P1, the pressing portion 72 separates from the pressed portion 67 and the engagement protrusion 74 engages with the engagement recess 75. Even when the operator releases the operation knob 71, the operation knob 71 and the pressing member 69 are fixed at the first position P1. The pawl 64 is urged by the compression coil spring 66 so that the tip end meshes with the ratchet gear 62, and only rotation of the input shaft 7 in the forward direction is permitted (see FIG. 11).
Conversely, when it is desired to release the restriction in the rotational direction by the ratchet mechanism 60, when the operation knob 71 is turned to the second position P2, the pressing portion 72 presses the pressed portion 67 and the engagement protrusion 74 engages the engagement recess 76. Even if the operation knob 71 is released, the operation knob 71 and the pressing member 69 are fixed at the second position P2. The tip end of the pawl 64 retracts from the ratchet gear 62, the rotation limitation of the input shaft 7 is released, and rotation is permitted in both forward and reverse directions (see arrows G and H in FIG. 12).

Reference numerals 80 and 81 denote aluminum hooks provided on the front and back of the upper right in FIG. 2 of the support 2, and the rope winding rods 82 and 83 vertically installed on the front and back of the support 2; A diamond shaped stopper 84, 85 is mounted on the tip of the hooking bar 82, 83 to prevent the rope from coming off the rope wrapping bar 82, 83.
In this embodiment, the support 2, the sealing case 9, the outer lid 11, the pulley 20, the rope guide 30, and the winding portions 80 and 81 are made of aluminum, but may be made of other metals such as stainless steel.

  The code | symbol 15 of FIG. 13 is a charge-type electric driver as a rotary-type electric tool for electrically rotationally driving the rope pulling apparatus 1, and attaches and uses the cylindrical shank 18 with the key groove 17 in the chuck 16. . The reference numeral 90 in FIG. 14 is a manual rotary tool for driving the rope pulling device 1 to rotate manually, and provided with a projection 91 which can be inserted in and removed from the shaft hole 13 of the input shaft 7 and fitted in the key groove 14 It comprises a rotating shaft 92 and an L-shaped handle 93 attached to the rotating shaft 92.

Next, how to use the above-described embodiment will be described.
For example, as shown in FIG. 15, when it is desired to lift the cargo basket 100 for unloading the load from the roof to the roof of the building 101, the operator on the roof side installs the hanging tool 103 on the parapet 102 and Two rope fixtures 105, 106 are installed on the parapet 104. Further, the rope pulling device 1 with the pulley cover 50 closed and the operation knob 71 fixed at the first position P1 and the hanging rope (here, fiber rope) 110 are prepared, and the lock member 53 of the rope pulling device 1 is shown in FIG. depressed downward (FIG. 9 (1) in the direction of arrow B), release the lock by separating the engagement claw 58 from the engaging groove 38 and 39, to open the pool Rica bar 50 in the arrow C direction in FIG. 3.

  One end side of the hanging rope 110 is inserted into the inlet passage portion 34 from the gap 44 between the inlet portion 32 and the outlet portion 33 of the rope pulling device 1, and slightly wound around the pulley 20 through the left side of the separating portion 40 After being inserted into the outlet passage 35 from the gap 44 between the inlet 32 and the outlet 33 through the right side of 40 (see FIG. 16), it is wound around the hooks 80 and 81 to be hooked. Then, the pulley cover 50 is closed while pushing the lock member 53 downward (in the direction of arrow B in FIG. 9 (1)) (see arrow D in FIG. 3), and the fitting portion 52 is engaged with the engaged portions 36, 37. To fit. When the lock member 53 is released from being pushed down, the lock member 53 is urged upward in FIG. 2 (the direction of arrow A in FIG. 9 (1)) by the compression springs 54 and 55, and the engagement claws 58 are engaged with the engagement grooves 38, Engage and lock in 39

  Two ropes (any of fiber ropes and wire ropes) 111 and 112 are stretched between the rope attachment hole 4 of the rope pulling apparatus 1 and the rope fixtures 105 and 106 to secure a fulcrum. The attachment of the ropes 111 and 112 to the rope attachment hole 4 is performed, for example, by hooking a hook at the end of the rope to a carabiner attached to the rope attachment portion 4. Then, the other end side of the hanging rope 110 is wound around the relay sheave 113 and the tip sheave 114 of the hanging tool 102 and dropped to the ground. The operator on the ground side suspends the cargo basket 100 at the lower end of the suspension rope 110. Even if a force in the ground direction is applied to the suspension rope 110 and the pulley 20 tries to rotate in the reverse direction, the tip of the pawl 64 of the ratchet mechanism 60 of the rope pulling device 1 engages with the ratchet gear 62 to input Since the rotation of the shaft 7 is limited, the pulley 20 does not rotate, and the entrance side of the hanging rope 110 is prevented from being pulled out.

  On the roof, the outlet rope 110a of the suspension rope 110 loaded in the rope pulling apparatus 1 is removed from the hooking portions 80, 81, and the operation knob 71 remains fixed at the first position P1. As shown in FIG. 13 (1), a cylindrical shank 18 with a key groove 17 is attached to the chuck 16 of the chargeable electric driver 15, and the key 19 is attached to the key grooves 14 and 17 of the input shaft 7 of the rope pulling device 1. While fitting, the shank 18 is inserted into the shaft hole 13 and connected, and the rechargeable motor-driven driver 15 is driven in the forward direction.

In the rope pulling apparatus 1, since the ratchet mechanism 60 permits the normal rotation of the input shaft 7, the input shaft 7 rotates forward, is decelerated by the reduction gear main body 6, transmitted to the output shaft 8, and coupled to the output shaft 8. The driven pulley 20 rotates counterclockwise in FIG. Thus, suspension inlet side of the rope 11 0 is drawn in the upper left portion of the pulley 20 through the left side of the inlet passage portion 34 and the separating portion 40, the right and the outlet of the separating portion 40 around around a little less than a right upper portion of the pulley 20 Go through the passage 35 to the outside. As a result, the cargo basket 100 rises from the ground.

When arriving on the roof, the driving of the rope pulling device 1 by the chargeable electric driver 15 is stopped. Then, although the inlet side ropes 110b hanging rope 110 is pulled to the parapet 10 in two directions under a load of cargo cage 100, the ratchet mechanism 60 limits the reverse rotation of the input shaft 7 are restrained reversal of pulley 20 The hanging rope 110 is prevented from being pulled outward from the inlet side of the rope pulling apparatus 1. Therefore, load basket 100 is in a state of being stopped at the outside of the parapet 10 2.

After loading a load (not shown) on the load basket 100, when it is desired to lower the load to the ground, the exit rope 110a of the suspension rope 110 is first wound around the hooking portions 80 and 81 so as not to be pulled back to the pulley.
Next, in order to release the rotation restriction by the ratchet mechanism 60 of the rope pulling apparatus 1, the operation knob 71 is turned to the second position P2 to engage and fix the engagement protrusion 74 to the engagement recess 76. Since the inlet rope 110b pulled strongly in the direction of the parapet 102 biases the pulley 20 clockwise, the ratchet gear 62 strongly presses the tip end of the pawl 64, so that the pawl 64 rotates. It is difficult to do.

Therefore, as shown in FIG. 14A, the rotary shaft portion 92 is inserted into the shaft hole 13 while fitting the projection 91 of the manual rotary tool 90 into the key groove 14 of the input shaft 7. Then, while loosening the pressing of the ratchet wheel 62 against pawl 64 by turning the handle 93 in the counterclockwise direction in FIG. 14 (1) (forward direction), the engagement projections by turning the operating knob 71 to the second position P2 74 is engaged with the engagement recess 76 and fixed. Thereby, the pawl 64 separates from the ratchet gear 62, and the rotation limitation of the input shaft 7 is released.

In this state, after grasping the outlet side rope 11 0 a by hand and removing it from the hook holding portions 80 and 81 of the rope pulling device 1, if the gripping force of the outlet side rope 110a is weakened, the pulling force of the inlet side rope 110b The pulley 20 rotates clockwise in FIG. 16 and the outlet rope 110a is pulled back to the inlet. At this time, since the differential reduction mechanism of the reduction gear main body 6 has a large load, the suspension rope 110 is slowly pulled out from the inlet 32.

  Thereby, the cargo basket 100 descends slowly. If the outlet rope 110a of the suspension rope 110 is pressed against the hooking portions 80, 81, it is possible to apply a friction brake and lower the brake more slowly. When it is desired to interrupt the descent, the outlet side rope 110a may be wound around the hooking portions 80, 81, and when it is desired to stop the cargo basket 100 safely, the operation knob 71 may be moved to the first position P1. .

Unlike this, as shown in FIG. 17, when worker A repairs the outer wall of building 101 by rope access technology, a box-type suspension curing device made of aluminum and having an open upper surface under worker A When it is desired to arrange 120 so that it can move up and down, hanging ropes (here, fiber ropes) 132 and 133 whose upper ends are fixed to the two hanging members 130 and 131 attached to the parapet 102 of the building 101 are dropped to the ground. , near the ground in loading the two rope 1 32,133 hung on a rope traction device 11, 12, two ropes (fiber rope the rope mounting hole 4 of one of the rope traction device 1-1 And the left side of the hanging type curing device 120 via the wire ropes 134 and 135, and two ropes are attached to the rope attaching hole 4 of the other rope pulling device 1-2. To hanging the right hanging curing device 120 via a flop 136 and 137.

  Attach the rope fixtures 138 and 139 to the parapet 104 on the roof of the building 101, and fix one end side of the safety ropes 140 and 141 on the main and backup sides for the operator A, and move the parapet 102 over the other end. Hang down to near the ground. A fall prevention device in which the lanyard on the main side of the safety belt worn by the operator A is hooked to a lifting device (not shown) attached to the safety rope 140 and the lanyard on the backup side is attached to the safety rope 141 It hangs on (not shown) and descends over the parapet 102 along the outer surface of the building 101 to the safety rope 140 and down to just above the pendant curing device 120.

  The operator A makes the hanging type curing device 120 bear no weight or almost no weight, and makes the lower sides of the safety ropes 140 and 141 hang down in the hanging type curing device 120 to check the outer surface of the building 101・ Carry out work such as repair. Pieces of repair members, walls, and the like generated in the work fall into the hanging type curing device 120, and scattering to the outside is prevented.

To building 101, if you want to go to the working range of the upper one of the time during work, the worker A is lifting device mounted on the safety rope 140 and 141, a little moved to ascent the position of the fall protection device upwards. And the operation knob 71 rotationally drives the input shaft 7 of the rope pulling apparatus 1-1 located at the first position P1 in the forward direction by the electric driver 150 carrying it, and suspends the left side of the hanging type curing device 120 Similarly, the control knob 71 rotationally drives the input shaft 7 of the rope pulling apparatus 1-2 at the first position P1 in the forward direction by the electric driver 150 carrying it. , Raise the right side of the hanging type curing device 120 a little along the hanging rope 133 and move it to the upper working range.

Before, during or after the movement, the worker A puts no weight or almost no weight on the hanging type curing device 120. When the elevation height is insufficient, the elevation of the worker A and the lifting of the suspension type curing device 120 are repeated several times. Then, work such as repair is performed on the upper side of the outer work of the building 101 at the time of the previous work.
Similarly, while repeating the work such as the repair to the outer surface of the building 101 and the elevation of the worker A and the lifting of the suspension type curing device 120, the work such as the repair to the outer surface of the building 101 is from the ground side I will go to

If it is desired to change the working position slightly lower on the building 101 halfway, the operator A moves the position of the lifting device attached to the safety ropes 140 and 141 and the fall preventing device slightly to the desired height. Descend to position
Then, the outlet side rope 132a of the rope pulling device 1-1 is wound around the hooking portions 80, 81 and hooked, and the input shaft 7 of the rope pulling device 1-1 is rotated forward using the manual rotary tool 90. The operation knob 71 is changed to the second position P2. Subsequently, after grasping the outlet side rope 132a by hand and removing it from the holding portions 80 and 81, when the gripping force of the outlet side rope 132a is weakened, the pulling force of the inlet side rope 132b causes the pulley 20 to rotate clockwise in FIG. The outlet side rope 132a is pulled back to the inlet side, and the left side of the hanging type curing device 120 is lowered. When the outlet rope 132a is lowered to the desired height, the outlet rope 132a is hooked to the hooking portions 80, 81, and the operation knob 71 is changed to the first position P1. The same operation is performed for the rope pulling device 1-2, and the right side of the hanging type curing device 120 is lowered to a desired height. If the descent height is insufficient, the descent of the worker A and the descent of the hanging type curing device 120 may be repeated several times.

  First, if the hanging type curing device 120 is raised to near the roof, the work such as repair to the outer surface of the building 101, the descent of the worker A and the descent of the hanging type curing device 120 are repeated. It is also possible to perform work such as repair on the outer surface of the building 101 from the roof side. In addition, when the repair work on the outer surface of the building is performed by two workers, the operation on the rope pulling devices 1-1 and 1-2 may be divided into two parts.

According to this embodiment, since the hanging rope 110 (1 32 , 1 33 ) can be pulled by using the rotary electric power tool as a drive source, there is no need to incorporate the drive source into the device, and winding around the pulley 20 is performed. Therefore, the take-up drum is unnecessary, and the device can be miniaturized as a whole. Further, as the rotary electric power tool, an ordinary tool carried for work such as the electric driver 15 can be used, and it is not time and effort to prepare a special drive source. If the rotary power tool is rechargeable, it will not be bothersome to draw the power cord, and it will be usable in places where commercial power is difficult, such as on the roof or outside of a building. In addition, by using the differential reduction type reduction gear main body 6 having a small reduction ratio and a large reduction ratio, the suspension rope 110 (1 32 , 1 33 ) can be inserted into the entrance while reversing the pulley 20 in the state where the limiting means 60 is released. When pulling out from the part 32, it is possible to perform a slow motion.
Also, to configure the rope inlet and outlet part 31 from the oppositely disposed inlet 32 and the outlet portion 3 3 at intervals, suspended between the inlet portion 32 and the outside and the inlet portion 32 through the gap 44 between the outlet portion 33 or out the rope 110 (1 32, 1 33), since the out movable around a lowering rope 110 hanging between the outside and the outlet portion 33, the ropes 110 suspended to a pulley 20 (1 32, 1 33) Easy to load and remove.
Further, the rope inlet / outlet portion 31 is provided at an interval from the pulley 20, and between the rope inlet / outlet portion 31 and the pulley 20, the inlet side rope 110b (1 32 b, 1 33 b) and the outlet side rope 110a (1 32 a, 1 32 a, Since the separation portion 40 for separating 1 33 a) is provided, the outlet side rope 110a (1 32 a, 1 33 a) is caught in the inlet side of the pulley 20 when the pulley 20 is rotated forward, or when the pulley 20 is reversed. It is possible to prevent the entrance side rope 110b (1 32 b, 1 33 b) from being caught in the exit side of the pulley 20.
Further, the support 2, suspended because with a rope 110 (1 32, 1 33) hooking portions 80, 81 to stop wound around the hanging tension on the inlet side of the rope 110 (1 32, 1 33) When it is desired to release the restriction by the restriction means 10 and move the hanging rope 110 (1 32 , 1 33 ) to the outside from the entrance portion 32 in a state where it is applied, the exit side rope 110a (1 32 a, 1 33 a) is wound around the hooking parts 80, 81 and the hooking line 110 (1 32 , 1 33 ) does not move in the reverse direction suddenly when the restriction means 10 is released by hooking and stopping It can be done. In addition, the friction brake can be applied by moving while making sliding contact with the hooking portions 80, 81.
When it is desired to release the restriction of the rope movement from the entrance 32 to the outside by the restriction means 10, the input shaft 7 of the reduction gear main body 6 is manually rotated forward using the manual rotary tool 90 to rotate the pulley 20. The release operation can be easily performed by performing the release operation with the operation knob 71 while slowly rotating forward.

In the embodiment described above, a rechargeable electric driver has been exemplified as the electric power tool, but the present invention is not limited to this, and may be another rotary electric power tool such as an electric drill. Also, a non-rechargeable power tool may be used.
In the above-described embodiment, there is a gap between the inlet and the outlet after loading the hanging rope, but as shown in the rope pulling apparatus 1A of FIGS. 18 and 19, fitting of the pulley cover 50A Extend upward to allow fitting up to the upper ends of the inlet 32A and the outlet 33A, and close the gap 44A between the inlet 32A and the outlet 33A on the back side of the upper extension of the pulley cover 50A. Or disturb the displacement of the entrance-side rope inserted into the entrance passage portion 34 of the entrance portion 32A into the gap 44A, or disturbing the exit-side rope inserted into the exit passage portion 35 of the exit portion 33A into the gap 44A It is also possible to project the disturbing portion 140. The baffling part 140, during use of the rope traction device, the hanging rope shift into the gap 44A of the inlet 32A and an outlet portion 33A, thus is carelessly opened collides with the upper end rear of the pool Rica bars 50A Can be prevented.
In the embodiment described above, the pawl is urged in the direction of the ratchet gear by the compression coil spring, but may be urged by a plate spring, a torsion spring or the like.
In the above embodiment, the limiting means for limiting the pulling-back of the loaded rope from the inlet side is provided on the input shaft side of the differential reduction gear main body as an example, but it is provided on the output shaft side You may do so.
Also, hang the hanging rope supported at the upper end side up and down, load the lower end side of this hanging rope into the rope pulling device, and attach the D ring of the harness worn by the operator and the rope mounting hole of the rope pulling device By connecting with a rope, it can be driven and raised by a portable rechargeable electric driver or the like.

  Furthermore, the restriction means replace the ratchet mechanism and bite into the rope as it tries to move in the direction where it is pulled out from the entrance and restricts the movement, and when trying to move in the opposite direction, it separates from the rope The cam may be configured to allow movement, biasing means for biasing the cam in a direction to bite the rope, and release means for separating the cam from the rope to release the restriction.

One specific example of the cam type limiting means is shown in FIG. In the rope pulling apparatus 1B of FIG. 20, the upper portion of the support 2B is extended upward, and the cam type limiting means 200 is mounted on the front side. Of the limiting means 200, 201 is a support plate mounted on the front side of the upper end of the support 2B, the left side is bent in a U-shape, and a rope insertion portion 202 as a rope contact portion is formed inside The right bent portion 203 is bent in a U-shape to form a bent portion 205 on which the rotation shaft 204 is rotatably mounted. The rope insertion portion 202 is disposed along the path on the inlet side of the rope loaded in the rope pulling apparatus 1B, and is linearly arranged with respect to the inlet passage portion 34 of the inlet portion 32. The proximal end portion of a cam 208 having a large number of teeth 207 projecting from the outer peripheral portion 206 is fitted to the rotating shaft 204. The cam 208 rotates in a direction (see arrow I in FIG. 20) and a direction (see arrow J in FIG. 20 ) approaching the rope inserted in the rope insertion portion 202 about the pivot shaft 204 as a rotation center . that has become possible. A spiral spring (not shown) is interposed between the pivot shaft 204 and the cam 208 so as to always bias the cam 208 in the clockwise direction in FIG.

A pivot shaft 209 is rotatably mounted near the center of the cam 208, and a proximal end of an L-shaped release operation member 210 is fitted to the pivot shaft 209. A cylindrical operation projection 211 protruding forward of the support 2B is attached to a corner of the release operation member 210, and the operation projection 211 is operated with a finger to release the operation member 210 around the pivot shaft 209. Are rotatable (see arrows K and L in FIG. 20). The distal end side of the release operation member 210 is bent in a J-shape to form an engagement portion 212 engageably engaged with the outside of the bent portion 205 of the support plate 201. Between the pivot shaft 209 and the releasing operation member 210, constantly releasing operation member 210, (not shown) biased to Ruze Nmaibane counterclockwise direction in FIG. 20 is interposed.

The method of loading the rope into the rope pulling apparatus 1B in FIG. 20 will be described. First, the operation projection 211 of the limiting means 200 is operated with a finger to rotate the cam 208 and rotate the release operation member 210 in parallel. As in FIG. 21, the engaging portion 212 is engaged with the outside of the bent portion 205. The pulley cover 50 is opened, and one end of the suspension rope 110 is inserted into the rope insertion portion 202 of the limiting means 200, and further inserted into the inlet passage portion 34 from the gap 44 between the inlet 32 and the outlet 33. After being slightly wound around the pulley 20 a little around through the left side of the 40 and inserted into the outlet passage portion 35 from the gap 44 of the inlet 32 and the outlet 33 through the right side of the separating portion 40 (see FIG. 21) Wrap and stop.

Then, the pulley cover 50 is closed, and the operation projection 211 of the release operation member 210 is operated with a finger to release the engagement of the engagement portion 212, and the rotation of the cam 208 and the rotation of the release operation member 210 are performed in parallel. , The cam 208 is made to approach suspension rope 110, and a finger is released. Cam 208 outer peripheral portion 20 6 is pressed against the rope 110 hanging is biased rope direction and is inserted into the rope insertion portion 202 by the spiral spring. When hanging rope 110 on the outlet side of the rope insertion portion 202 is pulled downward (see arrow R in FIG. 22), although an external force in the counterclockwise direction is applied to the cam 20 8, from the rope 110 hanging the outer peripheral portion 206 Since it is in the direction of separation, the cam 208 is easily pivoted counterclockwise to allow movement of the inlet side rope 110b in the pulley direction. Conversely, when the rope 110 hanging on the inlet side of the rope insertion portion 202 is pulled upwardly (see arrow S in FIG. 22), although an external force in the clockwise direction is applied to the cam 208, the outer peripheral portion 20 6 hanging ropes Since the cam approaches the direction 110, the cam 208 bites into the suspension rope 110 to restrict its movement (the suspension rope 110 is nipped by the rope insertion portion 202 and the cam 208).

When starting the pulling of the hanging rope 110, when the outlet side rope 110a is removed from the winding portions 80, 81 and the input shaft 7 is rotated forward by the chargeable electric driver 15, the pulley 20 rotates forward. The hanging rope 110 is pulled smoothly because the means 200 is in a direction that allows movement.
When it is desired to stop the pulling of the suspension rope 110, the driving of the input shaft 7 by the chargeable electric driver 15 is stopped. When the rope 110 hanging on the inlet side of the rope insertion portion 202 is pulled upward, but the external force in the clockwise direction is applied to the cam 208, the cam 208 of direction so to approach the rope 110 hanging outer peripheral portion 206 hanging rope 110 Bite into and limit movement. Therefore, the entrance rope 110b is not pulled back.
When it is desired to pull back in the direction in which the inlet side rope 110b is pulled upward in FIG. 22 in the pulled direction, the outlet side rope 110a is wound around the hooking portions 80 and 81 and hooked, and the input shaft 7 is manually operated. Type rotary tool 90 is connected and rotated in a normal direction, the biting of the cam 208 with respect to the suspension rope 110 is loosened, the operation projection 211 of the limiting means 200 is operated by And the engaging portion 212 is engaged with the outside of the bent portion 205 as shown in FIG. Then, when the holding force for holding the outlet side rope 110a removed from the holding portions 80 and 81 is reduced, the pulley 20 is reversely rotated by the pulling force of the inlet side rope 110b, and the outlet side rope 110a is pulled back to the inlet side. .

According to the modification of FIG. 20, it is possible to limit the pulling back of the entrance side rope 110b during towing or stopping of the hanging rope 110 without using the ratchet mechanism, and also based on the hanging rope 110 You can also release the restriction if you want to return. Further, since the rope insertion portion 202 of the limiting means 200 is disposed on the inlet side of the support portion 2B on the inlet side of the inlet portion 32, the rope passage on the inlet side becomes longer, and the suspension rope 110 is guided to the pulley 20 Can be done more smoothly.

  Other specific examples of the cam type limiting means are shown in FIGS. In the rope pulling apparatus 1C of FIGS. 23 and 24, a cam type limiting means 300 is mounted between the outlet 33, the pulley 20 and the hooking portion 80 at the front upper right of the support 2C. Among the limiting means 300, reference numeral 301 denotes a support plate mounted on the upper right portion on the front side of the support 2C, and a right side portion is bent in a U-shape and a turning shaft 304 is rotatably mounted inside It is part 305. A proximal end portion of a cam 308 having a large number of teeth 307 protruding from the outer peripheral portion 306 is fitted to the rotating shaft 304. The cam 308 is rotatable in a direction toward and away from the rope passed through a rope groove of a rope contact portion described later with the pivot shaft 304 as a pivot center (arrow M in FIG. 24). , N). Between the pivot shaft 304 and the cam 308, there is interposed a spring (not shown) that biases the cam 308 in the counterclockwise direction in FIGS. 23 and 24 at all times.

A pivot shaft 309 is rotatably mounted near the center of the cam 308, and a proximal end of an L-shaped release operation member 310 is fitted to the pivot shaft 309. A cylindrical operation projection 311 protruding forward of the support 2C is attached to a corner of the release operation member 310, and the operation projection 311 is operated with a finger to release the operation member 310 around the rotation shaft 309. Is rotatable (see arrows O and Q in FIG. 24). The distal end side of the release operation member 310 is bent in a J-shape to form an engaging portion 312 engageably engaged with the outside of the bending portion 305 of the support plate 301. Between the pivot shaft 309 and the releasing operation member 310, constantly releasing operation member 310, FIG. 23, (not shown) biased to Ruze Nmaibane clockwise in FIG. 24 is interposed.

  In the separating portion 40C, the right side in FIG. 23 and FIG. 24 extends obliquely downward in the form of a hook and forms a rope contact portion 45 loosely inserted in the H-shaped groove 21 of the pulley 20. A rope groove 46 having an arc-shaped cross section is formed on the outer surface side of the portion 45. The pulley cover 50C has an opening 400 formed on the side surface in the upper right portion of FIG. 23, so that it does not interfere with the pulley cover 50C even when the cam 308 and the release operation member 310 rotate.

The rope loading method to the rope pulling apparatus 1C configured as shown in FIGS. 23 and 24 will be described. First, the operation projection 311 of the limiting means 300 is operated with a finger to turn the cam 308 and turn the release operation member 310. And the engaging portion 312 is engaged with the outside of the bent portion 305 as shown in FIG. Pull the pulley cover 50C open and insert one end side of the hanging rope 110 into the inlet passage 34 through the gap 44 between the inlet 32 and the outlet 33, and wrap it slightly around the pulley 20 through the left side of the separator 40C. After fitting in the rope groove 46 of the rope guiding portion 45 of the portion 40C and inserting it into the outlet passage portion 35 from the gap 44 between the inlet portion 32 and the outlet portion 33 (see FIG. 25), it is wound around the hooking portions 80 and 81 and hooked stop.

Then, while closing the pulley cover 50C, the operation projection 311 of the release operation member 310 is operated with a finger to release the engagement of the engagement portion 312, and the rotation of the cam 308 and the rotation of the release operation member 310 are performed in parallel. , release the finger is brought closer to the rope 1 10 suspended cam 308. Cam 308 outer peripheral portion 30 6 is pressed against the lower rope 110 hanging is rotationally biased in the rope direction the rope abutment 45 by the spiral spring (see FIG. 26). When a force is applied to the suspension rope 110 in the direction from the vicinity of the rope outlet of the pulley 20 (near the inlet of the rope groove 46) to the outlet 33 (see arrow T in FIG. 26) applied, but the cam 308 of direction so that the outer peripheral portion 30 6 is separated from the suspension ropes 110 fitted in the rope groove 46 is easily rotated in the clockwise direction, the movement of the outlet portion 33 of the outlet side rope 110a outwardly Permissible. Conversely, when the force in a direction to pull the suspension rope 110 to the inlet portion 32 upward in FIG. 26 (see the arrow U in FIG. 26) is applied, although the external force in the counterclockwise direction is applied to the cam 308, the outer peripheral portion 30 6 There since the direction of approaching the hanging rope 1 10 fitted to the rope groove 46 cam 308 to limit the movement bite into ropes 1 10 hanging outer peripheral portion 30 6 (suspension rope 110 cam 308 and the rope abutment Nipped between parts 45).

When starting the pulling of the hanging rope 110, when the outlet side rope 110a is removed from the winding portions 80, 81 and the input shaft 7 is rotated forward by the chargeable electric driver 15, the pulley 20 rotates forward. since the direction that allows the movement of the lowering rope 110 hanging means 300, hanging rope 110 is smoothly traction.
When it is desired to stop the pulling of the suspension rope 110, the driving of the input shaft 7 by the chargeable electric driver 15 is stopped. When the inlet-side rope 110b is pulled upward of the inlet portion 32, the outlet-side rope 110a fitted in the rope groove 46 of the rope contact portion 45 is pulled toward the pulley 20 and an external force in the counterclockwise direction is applied to the cam 308 However, since the outer peripheral portion 307 approaches the suspension rope 110, the cam 308 bites into the suspension rope 110 to restrict its movement. Therefore, the hanging rope 110 is not pulled back.
When it is desired to return in the direction in which the inlet side rope 110b is pulled upward in FIG. 26 in the pulling direction, the outlet side rope 110a is wound around the hooking portions 80 and 81 and hooked, and the input shaft 7 is manually operated. Type rotary tool 90 is connected and rotated in a normal direction, the biting of the cam 308 on the suspension rope 110 is loosened, the operation projection 311 of the limiting means 300 is operated with a finger, the rotation of the cam 308 and the rotation of the release operation member 310 And the engaging portion 312 is engaged with the outside of the bent portion 305 as shown in FIG. Then, when the holding force for holding the outlet side rope 110a removed from the holding portions 80 and 81 is reduced, the pulley 20 is reversely rotated by the pulling force of the inlet side rope 110b, and the outlet side rope 110a is pulled back to the inlet side. .

23, without using the modification also ratchet mechanism of FIG. 24, hanging in the traction or during stopping of the rope 110 can limit the inlet side rope 110b is pulled back, or suspension based on the ropes 110 You can also release the restriction if you want to go back to. In addition, since the limiting means 300 is provided between the outlet 33, the pulley 20, and the hook 80 in the support 2C, the device does not have to be large. Further, since the hanging rope 110 is held between the rope contact portion 45 and the cam 308, the movement in the direction in which the hanging rope 110 is pulled back can be reliably restricted.
The limiting means 300 may be provided between the inlet 32 and the pulley 20 (in this case, the left side in FIG. 23 and FIG. Do it).

  The present invention is applicable to a rope pulling apparatus that pulls a rope to move an object or a person.

1 rope traction device 2 supports 4 rope mounting hole 5 reduction gear 6 reduction gear main body 7 an output shaft 10 limiting means 15 the input shaft 8 rechargeable electric power driver 20 pulley 31 the ropes entrance portion 32 inlet portion 33 outlet 34 inlet passage 35 outlet Passage portion 36, 37 Fitted portion 38, 39 Engaging groove 50 Pulley cover 51 Hinged portion 52 Fitted portion 53 Locking member 58 Engaging claw 60 Ratchet mechanism 61 Release means 90 Manual rotating tool
110 hanging rope

Claims (10)

It has an input shaft that can connect the output shaft of the rotary electric tool in a detachable manner, and an output shaft that is connected to a pulley that can be wound on a rope in a detachable manner, and reduces the rotation applied to the input shaft and outputs it Differential reduction type reduction means transmitting to the shaft,
A support on which the speed reducing means is mounted;
An inlet portion and an outlet portion provided on the support to form an inlet and an outlet of the rope wound around the pulley;
A separating part provided between the inlet and the outlet and the pulley for separating the inlet side rope and the outlet side rope;
Limiting means provided on the decelerating means or on the support to limit the entry side of the rope from being pulled out;
Equipped with
An inlet passage portion and an outlet passage portion are formed in the inlet portion and the outlet portion, and the inlet portion and the outlet portion are disposed opposite to each other at an interval so that the inlet passage portion and the outlet passage portion face each other.
It is formed so that the rope can be put in and out between the outside and the inlet passage part through the clearance between the inlet and the outlet part and the rope can be put in and out between the outside and the outlet passage part,
Rope traction device according to claim. The inlet passage portion and the outlet passage portion formed in the inlet portion and the outlet portion are in the form of a half cylinder,
The rope traction device according to claim 1, characterized in that That the separation part is loosely inserted in the groove around which the rope of the pulley is wound,
The rope pulling device according to claim 1 or 2, characterized by It has an input shaft that can connect the output shaft of the rotary electric tool in a detachable manner, and an output shaft that is connected to a pulley that can be wound on a rope in a detachable manner, and reduces the rotation applied to the input shaft and outputs it Differential reduction type reduction means transmitting to the shaft,
A support on which the speed reducing means is mounted;
An inlet portion and an outlet portion provided on the support to form an inlet and an outlet of the rope wound around the pulley;
Limiting means provided on the decelerating means or on the support to limit the entry side of the rope from being pulled out;
Equipped with
The limiting means is
A rope abutment disposed in a path through which the rope passes between the pulley and the outlet, and in which the rope abuts;
When the rope is going to move in a direction to be pulled out from the entrance, it bites into the rope in contact with the rope abutment to restrict movement, and when trying to move in the opposite direction, it moves away from the rope With a cam configured to allow
Biasing means for biasing the cam into the rope and
Releasing means for separating the cam from the rope and releasing the restriction;
Only including,
That the rope abutment is loosely inserted in the groove around which the rope of the pulley is wound,
Features and to Carlo-loop towing device. A rope groove is formed on the outer surface of the rope contact portion on which the rope abuts,
The rope traction device according to claim 4, characterized in that An inlet passage portion and an outlet passage portion are formed in the inlet portion and the outlet portion, and the inlet portion and the outlet portion are disposed opposite to each other at an interval so that the inlet passage portion and the outlet passage portion face each other.
The rope can be taken in and out between the outside and the inlet passage through the gap between the inlet and the outlet, and the rope can be taken in and out between the outside and the outlet passage,
The rope traction apparatus according to claim 4 or 5, characterized in that The inlet passage portion and the outlet passage portion formed in the inlet portion and the outlet portion are in the form of a half cylinder,
The rope traction device according to claim 6, characterized in that During the inlet mouth and the outlet portion and the pulley is provided with a separating portion for separating the inlet side rope and outlet rope,
Having the rope contact portion integrated with the separation portion,
A rope pulling apparatus according to any one of claims 4 to 7 , characterized in that It has an input shaft that can connect the output shaft of the rotary electric tool in a detachable manner, and an output shaft that is connected to a pulley that can be wound on a rope in a detachable manner, and reduces the rotation applied to the input shaft and outputs it Differential reduction type reduction means transmitting to the shaft,
A support on which the speed reducing means is mounted;
An inlet portion and an outlet portion provided on the support to form an inlet and an outlet of the rope wound around the pulley;
Limiting means provided on the decelerating means or on the support to limit the entry side of the rope from being pulled out;
A separating part provided between the inlet and the outlet and the pulley for separating the inlet side rope and the outlet side rope;
A pulley cover provided on the support for freely opening and closing the front or the front and the side of the pulley;
Lock means for locking and unlocking the pulley cover in the closed state ;
An inlet passage portion and an outlet passage portion are formed in the inlet portion and the outlet portion, and the inlet portion and the outlet portion are disposed opposite to each other at an interval so that the inlet passage portion and the outlet passage portion face each other.
The rope can be taken in and out between the outside and the inlet passage through the gap between the inlet and the outlet, and the rope can be taken in and out between the outside and the outlet passage,
The pulley cover is capable of opening and closing the inlet and outlet sides with the side opposite to the inlet and outlet of the pulley as the opening and closing shaft.
The pulley cover being provided with a baffle which, when locked in the closed state, enters the gap between the inlet and outlet and prevents the rope from coming out of the inlet or outlet passage;
Features and to Carlo-loop towing device. The inlet passage portion and the outlet passage portion formed in the inlet portion and the outlet portion are in the form of a half cylinder,
10. The rope traction device according to claim 9, characterized in that

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