KR20160117301A - A safety wheel rope assembly of a hoist drive apparatus and the cover used to the same, and the hoist apparatus using the same - Google Patents

Abstract

An objective of the present invention is to provide a drive wheel safety rope assembly of a hoist apparatus, a safety cover apparatus used in the same, and a hoist apparatus using the same which have low manufacturing costs and a simple structure, and safely store a rotary rope. The safety cover apparatus is used in a drive wheel safety rope assembly of a hoist drive apparatus comprising a rotary rope (3a) rotating a pulley of a wheel drive member driving a hoist rotary shaft, drives the pulley by an operation with the rotary rope, and comprises: a safety cover (70, 70) which is penetrated by a left and a right pulling unit of the rotary rope, drives the pulley while the pulling unit on one side of the rotary rope is pulled if the pulling unit on the other side is pulled, and returns to an original position if the pulling unit on the other side is released; and a support member (71, 71) mechanically connecting the safety cover (70, 70) to a cap member of the hoist drive apparatus. The safety cover (70, 70) comprises: a body (70a, 70a) having a through hole to be penetrated by the left and the right pulling unit of the rotary rope; a means which is disposed on an upper end of the body (70a, 70a) and guides the left and the right pulling unit of the rotary rope to the through hole of the body (70a, 70a); and a means which is disposed on a lower end of the body (70a, 70a), directs the safety cover (70, 70) downwards, and stops and prevents ends of the left and the right pulling unit of the rotary rope from completely escaping from the safety cover (70, 70).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety wheel assembly for a hoist drive device, a safety cover device used therefor, and a hoist device employing the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoist driving device such as a blind or a louver, and more particularly to a hoist driving device such as a screen rotating bar of a roll / comb / triple blind, a rotating bar of a Venetian / roman shade / honeycomb blind, (Hereinafter, referred to as " rotating shaft ") or a ball chain for manual driving that pulls the rotating body of the laundry drying table by hand and drives the rotating chain To a driving wheel safety line assembly of a hoist driving device for protecting children's safety, a safety cover device used therefor, and a hoist device employing the same.

Generally, a kind of small hoist device installed in a room or outdoor is installed in a window frame so that a mining and mining through a window can be selectively performed, and a long slat is arranged horizontally A venetian blind which vertically moves and vertically moves, a vertical blind which vertically arranges the slats, a vertical blind which selectively moves to the left and right, and a plurality of louvers arranged to rotate at a fixed position Such as a louver type and a horizontally arranged roll, a rolled blind that is rolled up and down to form selective light, and honeycomb and pleated blinds that light or shade by folding or spreading corrugated fabric Screen type.

Such an awl is usually provided with a winding member that is firmly fixed to an arbitrary fixing member such that the towing line or the screen itself can be wound or unwound so as to be rotatable on an arbitrary fixing member, and a weight member is formed or formed by any one of a supporting member, (Pulled) from the winding member by means of gravity, and the pulling line or screen is wound (wound) on the winding member by an electric or manual power such as a motor, and the slat or screen is moved to a specific intended height When the electric power or the manual power is not applied to the winding member, it is braked that the winding member is downwardly rotated by the weight of the weight, and at the same time, when the power is applied, A hoist drive device capable of turning driving Hereinafter referred to as "clutch") is essential.

As a kind of hoist machine installed in a room or outdoors, a laundry drying machine can also be used, which is similar to the above-described awnings. When the electric power or the manual power is not applied to the winding member, It is necessary to provide a hoist driving device which can brak down the rotation and enable the rotation of the winding member when the power is applied.

In addition, there are various hoist devices, but their configuration and operation relationship are quite different and the facts will be obvious to those skilled in the art, so further descriptions of other hoist devices will be omitted below.

Fig. 1 is an exploded perspective view showing a roll blind clutch, and Fig. 3 is a cross-sectional view showing a roll blind clutch. This is a state in which such a clutch is necessary As a representative example, it is selected in detail to explain its composition and operation relationship. The background art relating to the present invention will now be described.

First, as shown in FIG. 1 (a), a roll blind, which is one of conventional shovels, includes a head rail 1a fixedly installed on a window frame; A roll screen 2 disposed on the lower side of the head rail 1a and a wrap spring inserted into one end of the head rail 1a to enable rotation and braking of the roll screen 2 A spring clutch 4a; A cap 5a for closing the other end; As shown in Fig. 1 (b), the roll screen 2 includes a screen 2b provided with a fastening member 2b2 and a screen sheet 2b1; A protruding step is formed on the inner circumferential surface in the longitudinal direction and a hollow inside the screen sheet fastening hole 2a3 is integrally formed on the outer circumferential surface thereof and is provided with a round bar 2a1 for winding and winding the screen sheet 2b1, (2a); The spring clutch 4a is inserted into one end of the winding member 2a and the plug 5a is inserted into the other end of the winding member 2a and the weight of the elongated screen sheet 2b1 is taken into consideration, the round bar 2a1 may further include a deflection reinforcing member 2a2 inside the round bar 2a1 or may be formed integrally with the round bar 2a1 as shown in Fig. Solution), and thus it can be said that it has a very economical structure. The round bar manufacturing method is injection molding with aluminum or plastic material, but the inside is empty due to the manufacturing cost problem.

Such a roll blind is provided on one side of the spring clutch 4a so that the rotating rod 3 is manually operated by the user to rotate the round bar 2a1 as the winding member 2a, The screen 2b of the roll screen 2 is wound around the winding member 2a or wound around the winding member 2a by a method in which the round bar 2a1 as the winding member 2a is rotated by electric power It is recommended to enable selective shading and mining.

2, the spring clutch 4a includes a clutch member 4a2 provided with a wrap spring integrally formed with a latching portion 4a2 '; A stator 4a1 provided with a clutch member 4a2 inserted therein; A latching portion 4a2 'formed integrally on one end of a wrap spring which is a clutch member 4a2 and a swinging member 4a2a which is integrally formed on one end of the swinging member 3 is rotatable about the rotation axis 3, A drive wheel member 4a3 which is integrally formed on the other side and which is fitted to the outer circumferential surface of the stator 4a1 is provided with a drive circuit member 4a3b for releasing and rotating the frictional braking force between the stator 4a1 and the clutch member 4a2, ; A projecting step 4a41 is formed so that the outer circumferential surface thereof is fitted into the screen sheet fastening 2a3 of the round bar 2a1 and the inner circumferential surface thereof is engaged with the driving member 4a3 and the stator 4a1, (Not shown) for increasing the frictional braking force between the stator 4a1 and the clutch member 4a2 is formed in the pickup member 4a4; When the user rotates the rotary pulley 4a3a, which is a constituent of the driving member 4a3, by the pulling force of the rotary string 3 (in the direction of the solid arrow in Fig. 3) The frictional braking force between the stator 4a1 and the clutch member 4a2 is released by pushing the engaging portion 4a2 'of the clutch member 4a2 in the direction in which the wrap spring body is extended, The projecting step 4a41 formed on the outer circumferential surface pushes the screen sheet fastening hole 2a3 of the round bar 2a1 in the rotating direction to rotate the round bar 2a1 as the winding member 2a, When the user stops pulling the rotary string 3, a rotating force is applied to the round bar 2a1 as the wind-up member 2a according to the load of the screen sheet 2b1, and this rotary force eventually causes the pickup member 4a4 (Not shown) of the pick-up member 4a4 to the clutch member 4a2, Pushed in the direction in which the wrap spring body narrowed increase the frictional braking force between (dotted line arrow direction in FIG. 3), a stator (4a1) and the clutch member (4a2) sikimeuroseo rotate stop rod (2a1).

Such a spring clutch 4a allows one mechanical element integrally formed with a wrap spring to braking and driving at the same time, and is very easy to manufacture, and most of all, the value is very low, so that the kind of the awning, The pickup member 4a4 is different from that of the pickup member 4a4 provided to be connected thereto in order to apply it according to the kind of the hoist device, 4a3) also have various configurations and forms, depending on whether manual power or electric power is used, or another clutch type is added according to the driving characteristics.

On the other hand, another clutch applied to various hoist devices is a worm and a worm wheel that can be combined with both braking and driving. However, when the plastic material is used, the force can not be maintained. In the case of a metal material, It is difficult to manufacture worms (especially in laundry drying hobs and awnings) because of the difficulty in making the worms, and the manufacturing cost is high, so that the application of most of the shovels such as roll blinds and venetian blinds with relatively small loads and relatively low loads The present invention has been applied to a limited range of laundry hats and awnings which are relatively expensive and which require braking, lifting and lowering of a heavy load weight, and various other clutches are known. However, So that no other Hoi A detailed description of the braking and driving apparatus applied to the driving apparatus will be omitted.

However, in order to transmit a human force to a clutch applied to a manually operated hoist apparatus, it is inevitable to use a loop-shaped pulley integrally formed or coupled to the driving member and a loop-shaped rotating barrel of a predetermined length to be fitted thereto, Because the length of the rotary string to be pulled out due to the adoption of the speed reducer to reduce the lift distance or the power felt by the person is larger and diverse than the vertical distance of the lifting distance, the loop rotary string is a very cheap and rational power transmission means, It is used in hoist equipment.

Such a loop type rotating string is usually formed by connecting a straight type ball chain and the end of a cord string to a rotary string pulley for a ball chain having a gear characteristic or a suitable rotary string pulley for a cord string driven only by frictional force .

However, the loop loop has recently become a major cause of social problems because the loop loop is the main cause of accidents in the neck and throat of infants and young children. In order to solve this problem, It has been a fact that many efforts are continuously being made and the alternative which is not worthy to be presented yet.

In order to solve the problem of child suffocation caused by the loop-shaped rotary string, the applicant of the present invention has proposed a driving circuit of a driving wheel member (Sleeve, see Fig. 2, refer to Patent Document 10-1295684, 4a3b are separated from the drive wheel member and rotate together when the rotary pulley is rotated in one direction, but when it rotates itself in the opposite direction immediately after it is rotated together by the rotary pulley in one direction, A bi-directional drive clutch for causing the pulley to rotate independently of the hoist rotating shaft, and a reverse rotation means for reversely rotating the retainer constituting the bi-directional drive clutch when the user releases the rotation line to stop the manual operation, (See 4b in Fig. 4) has been proposed as a solution. The detailed construction and operation principle of the hoist driving apparatus A description will be given of a method for safely using a loop rotation string (see 3 in Fig. 1) on a hoist drive device (see 4b in Fig. 4) having the function of returning the drive wheel member It is to be understood by those skilled in the art from FIG. 4 that the reason for this is a background technique closely related to the present invention.

First, as shown in Fig. 4, a conventional rotary loop 3 (Fig. 1) is secured to prevent child suffocation by lifting up a loop rotation rod 3 of a typical length of about 1.5 meters. The upper rotary string 3a is about 50 cm to 70 cm in length with one pulling stroke length and the middle rotary string 3b is about 10 cm to 30 cm in length. The upper rotary string 3a and the intermediate rotary string 3b are extended so as not to be separated by using the two stoppers and the extension member 3d respectively and the intermediate rotary string 3b and the lower rotary A pair of two separated breaker devices 3e are provided on both sides of the string 3c to form a whole loop, and a safety loop 3 ' (Hereinafter referred to as "safety loop rotation line ") is inserted into a rotary pulley (not shown) , The height of the upper portion of the safety loop rotation rope 3 'above the both side separation means 3e and the portion of the upper rotation ribs 3a and 3b which are caught by the user (adult) It is possible to divide the child-catching part 3c and the adult-catching part 3a and 3b intentionally by dividing means 3e, When the child catches the lower rotation string 3c, the child is instantly separated and only the adult holds and pulls the upper end and the intermediate rotation rods 3a and 3b above the separation means 3e to drive the awning.

The reason why the safety loop rotating rod 3 'is configured as described above is that, in the case of the upper rotating rod 3a, the length of one stroke that the adult pulls is usually about 50 cm to 70 cm, Since the safety loop rotation rod 3 'is automatically returned immediately after the driving device 4b is pulled out so that the adult can always pull the upper and middle rotation rods 3a and 3b again only at that height, The reason for placing the intermediate rotation string 3b and the stopper combination extension member 3d is that the length of the intermediate rotation string 3b is replaced by a longer length in this case because the installation depths are different from each other, 3a and 3b is excessively pulled to 50 cm to 70 cm or more, the extension member 3d serving as the other stopper is prevented from entering the rotary pulley (not shown). At this time, the lower end of the intermediate swivel line (3b) can be placed only at an adult's hand height (about 170 cm) so as not to touch the hand of a child. In this state, that is, even when the lower rotary string 3c is not yet connected, the rotary string pulley can be repeatedly driven. In this case, however, the other rotary string 3a (3b) When you do not, you can twist the bottom. This is because the lower rotating string 3c is connected through the separating means 3e and is also aesthetically pleasing.

It should be noted that when the safety loop rotation rope 3 'is used in the hoist driving device 4b having the function of returning the driving wheel member, the nature of the separation means 3e constituting the safety loop rotation rope 3' There is a fundamental difference in characteristics as compared with the case of the separating means applied to the loop rotary string used with the conventional spring clutch 4a (see Fig. 2).

For example, when the safety loop rotation rope 3 'is applied to the spring clutch 4a (see Fig. 2), the separation means 3e intervene in the driving of the hoist device, so that the separation means 3e, It is necessary to solve the mutually contradictory situation that the mutual contradictory target must be separated at the same time, that is, not to be separated at the driving of the hoist device and easily separated at the time of catching by the child. However, When the safety loop rotating rope 3 'is applied to the hoist driving device 4b having the return function of the separating means 3e, the user drives and drives the rotating rods 3a and 3b above the separating means 3e, So that the separating means 3e can be prevented from falling off easily when the child catches it, and it is only necessary to be attached to the extent that it prevents the shaking motion, So that even if the loop is constituted as a whole, it is possible to constitute the rotation line very safely

This is a very useful invention that strategically distinguishes the loop rotation line between the position where an adult catches it and the position where a child catches it.

In addition, although not shown in the drawing, another prior application (Patent Application No. 2013-17174) of the present applicant has made it possible to manufacture hoisting devices on aesthetically or functionally arranged in various types of hoisting devices, If the code is dependent on the rotation of the rotating shaft, it is necessary to pre-wind one side of the rotating shaft to prevent the fine lagging phenomenon that occurs due to the inability to rotate the rotating shaft to the original position. The manual driving wheel of the hoist driving device driven by the system (the winding wire is further wound on the side of the rotating shaft) is presented and contributed to the safety of the child.

Nevertheless, the position of the upper rotary string 3a and the intermediate rotary string 3b is still lowered to 170 cm from the bottom, so that the children of the frigid are guided through the bed or the chair by the upper rotary string 3a and the intermediate rotary string 3b ), It is possible to avoid the risk of potential suffocation due to the rotating string at the position of 170 cm or more so as to be a safer solution for the use of the rotary string due to the possibility of the occurrence of a potential phos- phonic accident, A wheel safety line assembly and a safety cover member (patent application no. 2014-25119) used therein and a driving wheel safety line assembly (patent application no. 2014-25667) of a hoist driving device having a rolled knob have been additionally proposed (For a more detailed description of this, reference is made to the already filed prior art, so that further explanation will be omitted)

However, the prior application (patent application no. 2014-25667) is perfect for children's safety, but since the safety cover is installed in a new state, the appearance is not good and the two sides are used. Therefore, the manufacturing cost is very large and the assembly is very inconvenient. Patent Application No. 2014-25119) is also very safe because it completely encloses the rotating shaft from the outside, but it is not suitable for aesthetically long aesthetic due to its long length, and therefore it is expensive to manufacture, and a safety cover member, There is a problem that it is considerably inconvenient, and it has been necessary to improve such a problem.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a driving wheel safety wire assembly for a hoist machine which is low in manufacturing cost, A cover device, and a hoist device employing the cover device.

The safety cover device according to the first aspect of the present invention is used in a drive wheel safety line assembly of a hoist drive device including a rotary string (3a) for rotating a pulley of a wheel drive member that drives a hoist rotary shaft, And the other side pulling portion is pulled to drive the pulley when the one side pulling portion of the rotary string is pulled, and the one side pulling portion is driven to pull the other side pulling portion, A safety cover 70, 70 'which can be retracted when the part is released; And a support member (71, 71 ') for mechanically connecting the safety cover (70, 70') to the cap member of the hoist drive device; , Wherein the safety covers (70, 70 ') have bodies (70a, 70a') through which the right and left pulling portions of the rotary string penetrate into the inside; Means for guiding the left and right pulling portions of the rotary string to the through holes of the bodies 70a and 70a 'provided at the upper ends of the bodies 70a and 70a'; And each of the ends of the right and left pulling portions of the rotating shaft is provided completely from the safety covers 70 and 70 'while being disposed at the lower ends of the bodies 70a and 70a' and facing the safety covers 70 and 70 ' Means for stopping to avoid separation; And a control unit.

Preferably, the means for guiding is formed of a Y-shaped inlet guide 70c having two inlet holes spatially separated from each other on the upper side, .

Also, preferably, the body 70a has one through hole and is expandable and contractible in the longitudinal direction.

Also preferably, the means for stopping comprises two traction holes spaced apart from each other on the lower side, and a trailing weight 'Y' -shaped traction weight 70b which is gathered together at the body and the joints And a swelling portion of the right and left pulling portions of the rotary string is caught by the pulling hole so that stopping is performed.

Preferably, at least one of the body, the guiding means, and the body and the stopping means is coupled with the weight nuts 70b4 and 70c4.

Also, preferably, the body 70a 'has two through-holes separated by the partition, and the guide of the rotary bar is naturally formed on the partition wall of the through-holes.

More preferably, the stopping means also includes a hollow body cover member 70b3 'having two through holes separated by a partition wall so as to correspond to the body 70a', and the through holes of the hollow body cover member And the rotating string penetrates the inside thereof.

Most preferably, the tubular member further comprises a tube member (3e2) having two hollow tubes for sliding the inside of each through hole of the hollow body cover member with the movement of the rotary string through the right and left pulling portions of the rotating string .

Also, preferably, the body 70a 'has two through-holes separated by a partition wall, and the stopping means is configured such that the swelling portion of the right and left pulling portions of the rotating shaft is caught by the two through- .

More preferably, each of the hollow tubes of the tubular member 3e2 is non-elastic and has a length corresponding to the length of one stroke of the right and left pulling portions of the rotary string.

According to a second aspect of the present invention there is provided a drive wheel safety string assembly of a hoist drive device comprising at least one pick-up member for driving a direct hoist rotary shaft and a wheel drive member having a drive wheel, Pulleys; A rotating shaft (3a) drawn out to the outside for rotating the pulley and hanging downward by a predetermined length; And a safety cover device (7, 7 ') inserted into the upper end of the right and left pulling portions of the rotating shaft to penetrate to the lower end and cover the rotating shaft from the outside to prevent the rotating shaft from being exposed. And a drive wheel safety line assembly for driving the hoist drive device.

Advantageously, the swelling portion of the right and left pulling portions of the rotary string is a first stopper and extension members (3d, 3d ') extended by an additional rotary string to the rotary string and separated by an external force equal to or greater than a predetermined level.

The stick member 3e may further include a stick member 3e connected to the first and second stopper extension members 3d and 3d ' , 3d ", and a third stopper-use extension member 3e3 connected to an end of the third rotary string 3e1.

According to a third aspect of the present invention, there is provided a hoist apparatus comprising the drive wheel safety line assembly.

According to the present invention, there is provided a driving wheel safety wire assembly of a hoist device for protecting children, and a safety cover assembly used therefor, wherein the safety cover covers the rotating wire cord entirely so that the neck or body part of the infant is caught on the rotating wire, It is possible to provide a hoist device for preventing accidents, and it is possible to obtain a safe, quiet, and extremely low manufacturing cost.

Further objects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

Fig. 1 is an exploded perspective view and a roll sectional view of a conventional roll blind, which is a type of hoist machine,
2 is an exploded perspective view showing a conventional clutch for both rolls,
Fig. 3 is a cross-sectional view of the conventional roll-to-roll clutch and the rotary bar in the engaged state,
4 is a perspective view of a combination of a hoist drive device and a safety loop rotary bar having a return function of a drive wheel member according to the present invention,
5 is an assembled perspective view of the safety cover device according to the first embodiment of the present invention,
6 is an exploded perspective view and a cross-sectional view of the safety cover device according to the first embodiment of the present invention,
7 is a photograph of a mesh hose tube provided with a safety cover body of the safety cover apparatus according to the first embodiment of the present invention.
8 is an assembled perspective view of the safety cover apparatus according to the second embodiment of the present invention,
9 is an exploded perspective view of a safety cover device according to a second embodiment of the present invention,
10 is an assembled perspective view of a safety cover device according to a second embodiment of the present invention combined with a hoist drive device having a return function of a drive wheel member according to the present invention.
11 to 13 are photographs of a flexible synthetic resin hose provided as a safety cover body of the safety cover device according to the first embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, You will know.

It should be noted that reference numerals used in the drawings in the accompanying drawings use the same reference numerals whenever possible, in other drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. And certain features shown in the drawings are to be enlarged or reduced or simplified for ease of explanation, and the drawings and their components are not necessarily drawn to scale. Further, in terms of the orientation of the device or element, front, rear, left, top and bottom, top and bottom are intended to facilitate the description of the present invention and do not imply that the associated device or element should have a particular orientation. Furthermore, terms such as " first "and" second "are used for convenience of description and are not meant to imply a relative main cause or purpose or order in the detailed description and claims. Such details will be readily apparent to those skilled in the art.

(First Embodiment of Safety Cover Device)

5, 6 and 7, the safety cover device 7 according to the first embodiment of the present invention includes a rotary string 3a for rotating a pulley of a wheel drive member for driving a hoist rotary shaft Wherein the right and left pulling portions of the rotating shaft are pierced into the inside of the rotating shaft and the rotating shaft of the rotating shaft is connected to the rotating shaft of the hoisting machine, The safety cover 70 and the safety cover 70 are mechanically connected to the cap member of the hoist drive device so that when the one side pulling portion is pulled, the other pulling portion is pulled to drive the pulley, The support member 71 includes a support member.

At this time, the safety cover 70 includes a body 70a having a through hole formed therein so that the left and right pulling portions of the rotary string penetrate into the inside thereof, and a pair of right and left pulling portions of the rotary string, (70a); and a guide member (70) provided at a lower end of the body (70a), and each end of the right and left pulling portions of the rotary shaft Wherein the means for guiding includes two draw-in holes spatially separated from each other on the upper side, and a Y-shaped inlet guide (70c), the means for stopping having two traction holes spatially separated from each other on the lower side, and a trailing < RTI ID = 0.0 > Y- Made of a (70b), left and right addition swelling pull portion of the rotary bar stuck in the hole made traction stopping.

At least one of the body, the guiding means, and the body and the stopping means may include weight nuts 70b4 and 70c4, and the body 70a may have a through- Lt; / RTI >

5, 6, and 7, a safety cover 70 is installed to house the rotary string 3a and drive the rotary string pulley while enclosing the rotary string 3a, thereby preventing the child from accessing the rotary cover. And a support member (71) for preventing the safety cover (70) from falling off. .

The safety cover 70 is composed of a body 70a, a traction weight 70b and a lead-in guide 70c. The body 70a is a hollow body in which a part thereof is overlapped in multiple stages, On the contrary, a draw-in guide 70c having a hollow or two separate draw-in hollows (not shown) is formed integrally or integrally with the draw-in guide 70c A traction weight 3a and a traction weight 70b having a predetermined weight and a length and having two separate hollow traction holes 70b1 and 70b2 are inserted or formed in the other end thereof, It is open.

Both ends of the rotary string 3a inserted into the body 70a are passed through the respective traction holes 70b1 and 70b2 by a predetermined length and are passed through the rotary rods 3a, The body 70a is stretched downward due to the own weight of the traction weight 70b since the stopper and the extension member 3d each having a larger diameter than the traction holes 70b1, A state in which one end of the two rotary rods 3a that are limited by the predetermined length and which are engaged with the stopper and the extension member 3d combined at a position below the predetermined length of the rotary string 3a, (Or may hold the stopper-use extension member 3d), the rotary string 3a is pulled out from the inside of the body 70a by a predetermined length pulled out, and at the same time, While the other side is lifted, the stopper and the extending member 3d connected thereto And then the stopper supporting member 3d is pulled up by pulling the pulling weight 70b upward while pulling it upward (the diameter of the pulling holes 70b1 and 70b2 is larger than the diameter of the stopper and the extending member 3d) At the same time, the body 70a is formed in such a manner that a part thereof is stacked or shrunk or stretched outside the rotating string 3a without affecting the rising and falling of the rotating string 3a housed therein The pulling weight 70b can be lowered by its own weight or the part of the body 70a (not shown) can be driven by pulling the rotary string 3a of the lower end of the pulled- While pushing down and pulling down the extension member 3d serving as a stopper combined with the other rotary string 3a and then lowering the other rotary string 3a connected thereto while descending the rotary string 3a, Housed inside and wrapped around To drive the pulley.

The safety cover 70 has a hollow body having an elongated predetermined length with the upper end opened and the rotation rod 3a is inserted into the hollow through the draw-in guide 70c formed at the upper end, And at least a lower portion of the rotary string 3a is entirely enclosed. When an extension external force such as pulling a part including the upper and lower ends is applied, the predetermined length is partially or entirely extended. An elastic cover or a flexible cover or a multi-layered overlapping member in which the length thereof is totally or partially reduced when an external force is applied in the longitudinal direction so as to be stacked or shrunk or expanded or contracted, A pulling weight 70b formed with pull holes 70b1 and 70b2 so as to be pulled out can be coupled or integrally formed on the lower side, (70b1) and (70b2). In some cases, the extreme example may be an insertion guide (70c) and a traction weight (70c) without an elastic cover or flexible cover or multi- 70b, which will be described in detail with reference to a second embodiment of the present invention. In the first embodiment of the present invention, as a part of the body 70a, a flexible cover Respectively.

The body 70a of the safety cover 70 according to the first embodiment of the present invention is made to have a shape of a fiber material tube of a sieve and a wing and a predetermined diameter and a length, (See a, b, c, and d in Fig. 7), which are expanded and contracted with an increase in diameter when an external force is applied so as to overlap in the longitudinal direction.

The pulling weight 70b may have various shapes, but in the first embodiment of the present invention, the pulling weight 70b is a reverse Y shape as shown in FIG. 6, and is a hollow body. Two traction holes 70b1 and 70b2 are formed at the lower end of the traction weight 70b in the shape of a reverse 'Y', respectively. The diameter of each hole is larger than the cutting diameter of the rotary string 3a, And the stopper and the extension member 3d are formed so as not to pass through the stopper and the extension member 3d because they are smaller than the diameter of the cut surface in the transverse direction of the stopper and the extension member 3d. The other end of the inverted 'Y' -shaped traction weight 70b is formed with a male screw thread 70b3 on the outer circumferential surface thereof and a weight nut 70b4 with a female screw thread 70b4 formed on the inner circumferential surface thereof, The pulling weight 70b of the inverted 'Y' shape is provided with a plastic material injection molding so that a coupling hole 70b5 having a predetermined depth is formed at the center of the pulling weight 70b.

In the first embodiment of the present invention, the draw-in guide 70c can be formed in various shapes. However, in the first embodiment of the invention, the draw-out weight 70b has the same configuration and shape as the draw- The weight nut 70b4 and 70c4 constituting one of the pulling weight 70b and the pulling-in guide 70c are inserted into the both ends of the mesh hose pipe 70a and then the both sides of the mesh hose pipe 70b And the ends are fitted to the outer circumferential surfaces of the traction weight 70b and the male threads 70b3 and 70c3 of the lead-in guide 70c. Then, the previously fitted weight nuts 70b4 and 70c4 are advanced, And both end portions of the mesh hose tube inserted at this time are tightly coupled with each other as they function as a packing member for securing the screw connection.

The support member 71 may be various types of support members such as a buckle type and a ring type. However, in the first embodiment of the present invention, a '?' (Not shown) of the injected guide 70c, and is tightly screwed into the coupling hole (not shown).

5, the bolts are engaged with the lower end of the hoist drive device 4b having the function of returning the drive wheel member, and the rotary string 3a is connected to the stopper and the extension member 3d And then pulled out from the upper side of the lead-in guide 70c downward into the safety cover 7 and then the ends thereof are pulled out through the pull holes 70b1 and 70b2 of the pulling weight 70b The stopper and the extension member 3d are coupled to the intermediate position of the drawn-out portion while leaving about 10 cm. In this state, even if the body 70a of the safety cover 7 is extended, The body 70a is stretched according to the length of the rotary string 3a so that the body 70a has a predetermined diameter and the diameter thereof becomes smaller (See Fig. 7 (c)), as if it were an apparent strand The rotation bar (3a) to be wrapped while the inside safety cover 7 is bound to be hanging downwards, so that true self-rotation of the inner line in (3a) 2 strands are wrapped around state, it is safe for a child.

Even more advantageous is that even if a child holds the safety cover device 7 and pulls it downward in the unoperated state provided as described above, it is securely supported by the stopper-use extension member 3d, Even if only the safety cover device 7 is lifted upward to peel off the true rotation shaft 3a, the rotation shaft 3a is separated from the bottom end, so that it is clear that it is safe for a child. Therefore, the first embodiment of the present invention is very safe once a child is not driving.

Hereinafter, the operation of the safety cover device 7 according to the first embodiment of the present invention will be described.

First, the user identifies (ascends or descends) the rotary string 3a of the adult key height which has been drawn out of the safety cover device 7 by the naked eye, grasps the rotary string 3a corresponding to one stroke length The end string of the rotary string 3a is drawn out by a length that is pulled through the traction holes 70b1 and 70b2 of the traction weight 70b so that the rotary string 3a is engaged with the rotary string pulley (Not shown) of the hoist machine is rotated so that the other end of the rotary string 3a is simultaneously elevated. The other end stopper and the extension member 3d, 70b2 is smaller than the diameter of the cut surface of the stopper and the extending member 3d so that the other end stopper and the extension member 3d lift the traction weight 70b by the pulling force of the user, The body 70a of the safety cover 70 connected thereto The diameter of the mesh hose pipe increases while the diameter thereof increases and the length thereof becomes smaller (see FIG. 7B). At this time, the diameter of the mesh hose pipe increases, The child is still safe to the rotary string 3a because the rotary string 3a is shrunk in the longitudinal direction while being wrapped around the rotary string 3a. Thereafter, when the user stops pulling, the rotary string 3a pulled by the hoist driving device 4b having the function of returning the driving wheel member descends while reversing, and at the same time, the towed weight 70b, And this causes the other end stopper and the other end stopper member 3d to be lowered downwardly and then the diameter of the mesh hose pipe which is the body 70a of the safety cover 70 connected thereto is also reduced (See Fig. 7 (c), and the hoses of b and c are the same, which is different from the extension and contraction state).

Further, the operation is repeatedly carried out while holding the rotary string 3a, thereby completing the intended operation. In order to reverse the operation, in the same way, when the user is drawn out of the safety cover device 7 with the naked eye The identification of the swivel line 3a on the opposite side of the adult height (identification of the lift-up or drop-down operation) is grasped and operated in the same manner.

For reference, the rotating-line home position mechanism by the reverse rotation related to the hoist driving device having the function of returning the driving wheel member is disclosed in Korean Patent Application No. 10-1295684 and No. 10-1469910 of the present inventor.

For example, the safety cover device 7 of the first embodiment of the present invention is a safety cover device for a child safety hoist drive system in which a ball chain or a cord is wound around or tucked at both ends thereof, A roll blind which is very useful when used in an assembly and shields and light in a manner that one end of a screen having a predetermined width and height of a roll / combination / triple blind is wound up and lowered in a rod having a predetermined diameter as a winding member The upper end of the pull string is inserted into the upper slat by a hole formed in the plurality of slats so that the upper end of the upper end of the pull string is lifted up or lowered by the winding member to encourage lowering of the slat A Venetian blind that shades and minors by pulling it up or down, and a corrugated screen A honeycomb and a pleated blind that bundle the lower end of one side of the towing line with the support member provided at the end and wind up or collapse the folding screen in such a manner that the upper end of the upper end of the towing line is lifted up and lowered by the wind- Such as a clothes hoisting machine such as a clothes dryer for winding up or pulling a tow line for lifting or lowering laundry laid on a supporting member after bundling one side end of a tow line of a predetermined length to a supporting member and tying the other end to a winding member, It is very useful for child safety if it is used for braking the falling of the winding member due to the falling or the driving of the lifting or lowering of the heavy object.

In addition, the first embodiment of the present invention can be variously modified. The body 70a of the safety cover 70 may be manufactured by a hollow multi-lapped stretching and stretching rod method such as a folding type antenna or a pointer, Tubes of flexible fabric are available and combinations of them are possible. Hoses, honeycomb tubes, rubber tubes, folding slides, etc. with bellows tubes or springs are also available.

In another modification of the first embodiment of the present invention, the lower end of the rotary string 3a may further include a separating means 3e and a lower rotary string 3c (see FIG. 4) (Not shown) such as a rubber ring or a metal ring may be further included in the traction weight 70b to control the weight of the traction weight 70b So that the traction weight can be easily adjusted.

In addition, the pulling weight 70b may be formed integrally with the pulling weight 70b for a predetermined length downward, and may also include a hollow tube member to be coupled downward.

As a further modification of the first embodiment of the present invention, the body 70a of the safety cover 70 is a tube having various shapes of stretchable or stretchable tubes, such as a quadrilateral cross-sectionally cut rectangular tube, And the inside of the body can be doubled so that the lifting and lowering lines of the rotating shaft are accommodated in the body 70a and the inside of the body 70a between the pulling weight 70b and the pulling guide 70c And may further include any protective tubular member that surrounds the outside of the body 70a and may include any protective tubular member that surrounds the outside of the body 70a, It will be appreciated by those skilled in the art that various other modifications may be made.

11 to 13 are photographs of actual products of a modification using a flexible synthetic resin hose pipe as a safety cover body in the safety cover device according to the first embodiment of the present invention, FIG. 13 is a photograph of only the middle portion of the body 70a in which the rotary string 3a passes through the hollow. FIG. 13 is a photograph of the upper portion of the body 70a and the pull-in guide 70c.

(Second Embodiment of Safety Cover Device)

8, 9 and 10, the safety cover device 7 'according to the second embodiment of the present invention includes a rotary string 3a for rotating a pulley of a wheel drive member for driving a hoist rotary shaft, , Wherein the left and right pulling portions of the rotating shaft are pierced into the inside and the rotating shaft of the hoisting and driving mechanism The safety cover 70 'and the safety cover 70', which can be retracted when the one-side pulling portion is pulled and the other-side pulling portion is pulled to drive the pulley, And a support member 71 'for connecting the support member 71'

At this time, the safety cover 70 'includes a body 70a' formed with a through hole so that the left and right pulling portions of the rotary string penetrate into the inside thereof, and a pair of right and left pulling portions (70a ') and each end of the right and left pulling portions of the rotating shaft (70') is provided at a lower end of the body (70a '), (70a ') having two through-holes separated by a partition wall, the partition wall of the through-holes providing a guide for the rotary bar to be smoothly formed And the stopping means also includes a hollow body cover member 70b3 'having two through holes separated by the partition so as to correspond to the body 70a', and the inside of the through- The rotating string penetrates The swelling portions of the right and left pulling portions of the rotary string are caught by the two through holes separated by the partition wall, and the stopping is performed.

And a tube member 3e2 having two hollow tubes for sliding the inside of each through hole of the hollow body cover member together with the movement of the rotary bar while the left and right pulling members of the rotating string penetrate.

In the present embodiment, it is preferable that each of the hollow tubes of the tubular member 3e2 is irrelevant and has a length corresponding to the length of one stroke of the right and left pulling portions of the rotary string.

8, 9, and 10, the safety cover device 7 'of the second embodiment will be described in more detail. The safety cover device 7' A safety cover 70 'capable of preventing a child's approach from occurring; And a support member 71 'for preventing the safety cover 70' from falling off. .

However, unlike the first embodiment, an elastic cover or a flexible cover or a multi-layered overlapping member whose length is entirely or partially reduced when an external force is applied in the longitudinal direction so that a part thereof can be overlapped, shrunk or stretched, 70c1 'and the hollow drawing holes 70b1', 70b2 'are integrally formed so as to have a predetermined length and weight below the other side, A body 70a 'in which a traction weight 70b', which further includes a hollow body cover member 70b3 'and is tightly coupled through an engagement hole 70b4', is integrally formed or integrally formed with the body 70a ' Is passed through the inlet hollow 70c1 'and the traction holes 70b1', 70b2 ', and is rotated to a predetermined length position which is located at a predetermined position in the cover member 70b3' or the pulling weight 70b ' One on each end of the string 3a, A third rotating string 3e1 extended by a predetermined length to the stopper and the extending member 3d 'having a diameter larger than that of the drawing holes 70b1' and 70b2 '; A tube member 3e2 provided with a hollow tube 3e2a (3e2b) having a predetermined diameter to be laid on the outside thereof; A pair of sticks 3e 'and 3e', each of which is connected to the other end of the third rotary string 3e1 to which a third stopper and extension member 3e3 for blocking the escape of the tubes 3e2a and 3e2b are respectively coupled, A pair of sticks (not shown) each of which is formed with a predetermined length, or a stick (not shown) formed by joining an arbitrary rod having a predetermined length to each of the stopper and extension members 3d ' And each of the sticks 3e 'and 3e' 'is selected from a pair of sticks 3e' provided inside the pulling weight 70b 'to protrude outwardly. As shown in FIG.

Therefore, when pulling down the first stick 3e '(for convenience of explanation) out of the protruding sticks 3e', 3e "outward, The first stick 3e 'is pulled out by a predetermined length and then the rotary string 3a connected thereto is pulled to drive the rotary string pulley and at the same time the other rotary string 3a connected thereto is elevated, The second stick 3e "on the other side of the stick member 3e connected to the end ascends within the traction weight 70b ', and eventually the other second stopper and the extending member 3d & The pulling of the clogged stick 3e 'is stopped in the pull holes 70b1' and 70b2 'of the pulling weight 70b' so that the first stick 3e ' If the pulling of the pulled first stick 3e 'is stopped and released, on the contrary, The other second stick 3e "is pulled down by itself to a predetermined length inside the traction weight 70b '(at the same time as the reverse rotation of the rotary pulley), and at the same time, each stick 3e', 3e" The both side rotating shafts 3a are retracted into the stick member 3e and the traction weight 70b 'in such a manner that the first stick 3e' The drive pulley is driven so that the rotary string 3a is not always exposed to the outside, and thus the child can be prevented from approaching the dangerous rotary string 3a.

In the second embodiment, the pulling weight 70b 'further includes the hollow cover member 70b3' and is tightly coupled through the coupling hole 70b4 '; And a stick member 3e which is coupled to both end portions of the rotary string 3a and is coupled to the stopper and the extension member 3d 'having a larger diameter than the pull holes 70b1' and 70b2 '.

At this time, the stick member 3e is provided with a pair of first and second sticks 3e 'and 3e', and each of the sticks 3e 'and 3e' A third rotary string 3e1 formed integrally with and extending by a predetermined length; (3e2a) and (3e2b) having a predetermined diameter that covers the entire length of the third rotating string (3e1) from the outside so as to prevent the third rotating string (3e1) from being exposed to the outside, Member 3e2; And a third stopper and extension member 3e3 coupled to the other end of the third rotating string 3e1 to prevent the downward escape of the first and second hollow tubes 3e2a and 3e2b.

As the support member 71 ', there is provided a square bolt having a square closed shape for opening or closing the inlet by advancing / retreating the screw as shown in Figs. 8 to 10. As shown in Fig. 10, The supporting member 71 'is engaged with the coupling hole 70b4' of the driving wheel member 70b ', and the other end is hooked to the lower end of the hoist driving device 4b having the function of returning the driving wheel member.

At this time, the length of the hollow tube 3e2a (3e2b) to be wrapped between the stopper supporting member 3d 'and the third stopper supporting member 3e3 is longer than the length of the stick 3e2' drawn out of the traction weight 70b ' ) 3e "to hold the hollow tube 3e2a (3e2b) so that the third rotating strut 3e1 therein is not exposed, so that the third rotating strut 3e1 has the same length as the third rotating strut 3e1.

According to the second embodiment of the present invention, since the user can pull the driving pulley only by the length of the rotary string 3a that has entered the traction weight 70b ', the driving pulley can be driven Stroke should be taken into consideration. Normally, it is about 50 cm, for example, and it is preferable to suitably increase or decrease according to the installation height.

9, each of the pair of first and second sticks 3e 'and 3e "is formed with a predetermined length, which extends downward to a predetermined length in order to increase the grip of the user, And a fourth stopper and extension member 3e5 coupled to the lower end of the fourth stopper 3e4. The stopper and the stop member 3d generally include a stopper and a stop member 3d ' The third stopper-use extended member 3e3 and the fourth stopper-purpose extension member 3e5 can use the same common plastic injection connection connector, and since these injection connection connectors are well known to those skilled in the art, In the second embodiment, a conventional connecting connector is used, and a fourth rotary string 3e4 and a fourth stopper-use extension member 3e5 each having a length of about 15 cm or less are used. Further comprising The rain.

To explain the operation of the safety cover device 7 'according to the second embodiment of the present invention, first, the basic operation of the hoist drive device 4b having the return function of the drive wheel member, (3a) always rotates as far as it rotates ".

Now, when the user selects any one of the first and second sticks 3e 'and 3e' (for example, 3e ') protruding out of the cover member 70b3' constituting the traction weight 70b ' The portion of the stick 3e 'located inside the cover member 70b3' constituting the pulling weight 70b 'is pulled out and the rotary string 3a connected to the stick 3e' While the second stopper and the second stopper member 3d "lifts upward the inside of the cover member 70b3 'which is one component of the traction weight 70b' The first stick 3e 'is drawn out of the lower end of the cover member 70b3', which is a constituent of the traction weight 70b ', but is completely drawn out of the lower end of the cover member 70b3' It is not exposed to the outside of the cover member 70b3 'so that the rotary string 3a is not exposed at all when the child is driven. Of course, The length of the fourth swivel (3e4) is not related to the child's asphyxia because the exposed length is short.

If the user pulls or loosens the first stick 3e 'drawn out, the hoist driving device 4b having the function of returning the driving wheel member immediately rotates the driving pulley in the reverse direction, The retracted first stick 3e 'is retracted into the interior of the cover member 70b3' constituting the traction weight 70b 'to return it to the original position, and at the same time, Since the second stick 3e "itself receives gravity, the first rod 3e " pulls down the original rotating rod 3a downward and descends to the original position.

As described above, the user using the safety cover device 7 'according to the second embodiment of the present invention can selectively remove one of the pairs of sticks 3e' (3e ") 3e ' The safety cover device 7 'according to the second embodiment of the present invention always has a dangerous rotation (rotation) inside the hoist driving device 4b, It is wrapped around the line (3a), so it is very safe for children.

For example, unlike the body 70a (see Fig. 5) of the first embodiment, the second embodiment of the present invention differs from the body 70a of the first embodiment in that the length thereof is totally or partially reduced when an external force is applied in the longitudinal direction so as to overlap, It should be understood by those skilled in the art that extreme embodiments which can be configured without an elastic cover or a flexible cover or multi-layer overlapping element are explained to a person skilled in the art to which each of the first and second embodiments according to the invention can be individually constructed Of course, it is also possible for a person skilled in the art to easily understand that the two can be arranged in an appropriate length at the top and bottom according to the installation height of the hoist device.

Meanwhile, in a modification according to the second embodiment of the present invention, the hollow cover member 70b3 'can be manufactured by a hollow multi-lapped stretching and stretching method such as a folding type antenna or a pointer, A combination thereof, a hose having a bellows tube or a spring, a honeycomb tube, a rubber tube, and a foldable slide can all be used.

As another modification of the second embodiment of the present invention, a separate additional weight (not shown) is attached to the tubular member 3e2 to adjust the weight of the pair of first and second sticks 3e ', 3e " ), It is of course also possible to combine the weight so as to be easily adjustable.

As another modification of the hollow body cover member 70b3 'of the second embodiment of the present invention, various types of rigid and rigid hollow tubes such as a tube having a rectangular cross-sectional cut surface, and a rotary string 3a and a stick 3e ') 3e' 'pair or a pair of inner double plates so that both sides of the rotary bar 3a are individually accommodated, and further includes an arbitrary guide bar disposed therein And may include an optional protective tube member (also a soft tubular tube member) that surrounds the outside of the hollow body cover member 70b3 ', and may include any tubular member 70b3' inside the hollow body cover member 70b3 ' (A smooth tubular pipe member is also possible). When a soft tubular pipe member is further included, it has the effect of reducing noise during up-and-down motion of the rotating rod 3a and the stick member 3e, The transformation is It will be appreciated by those skilled in the art.

In addition, as another modified example, the pulling holes 70b1 'and 70b2' of the pulling weight 70b 'are passed through the sticking member 3e in such a manner as to restrict the pulling of the sticking member 3e according to the selection of the sticking member 3e However, an arbitrary stopper (not shown) for preventing entry into the drive pulley may be attached or connected to the rotary string 3a so that the upward and downward movement of the stick member 3e may be limited to be performed only inside the traction weight 70b ' , Which will be readily apparent to those skilled in the art.

(Embodiment of the driving wheel safety wire assembly of the hoist driving device)

According to another aspect of the present invention, there is provided a drive wheel safety line assembly of a hoist drive device including at least one pick-up member for driving a direct hoist rotation axis and a wheel drive member having a drive wheel, A pulley integrally formed with the pulley; A rotating shaft (3a) drawn out to the outside for rotating the pulley and hanging downward by a predetermined length; And a safety cover device (7, 7 ') inserted into the upper end of the right and left pulling portions of the rotating shaft to penetrate to the lower end and cover the rotating shaft from the outside to prevent the rotating shaft from being exposed. .

At this time, it is preferable that the swelled portion of the right and left pulling portions of the rotary string is formed by first stopper-forming extension members 3d and 3d 'which extend by an additional rotary string to the rotary string, Even if the lower ends of the right and left pulling portions of the rotary string are connected to each other to form an annular shape, if the body part of the infant or the child is caught by the hook, the stoppers and the extension members 3d and 3d 'are disassembled and the rotary string is separated , And child safety can be more certain.

The stick member 3e further includes a stick member 3e connected to the first stopper extending members 3d and 3d 'and the stick member 3e is connected to the first stopper extending members 3d, 3d', 3d ' And a third stopper and an extension member 3e3 connected to the end of the third rotary string 3e1. The first stopper 3e1 and the second stopper stop member 3e1 are connected to the first stopper- , 3d ', 3d'') and the third stopper-use extension member 3e3, the third rotary string 3e1 is inserted into the tube member, so that if the child pulls the rotary string and loses its center, This is because it is possible to further prevent a situation where a string is wound.

(Embodiment of Hoist Apparatus)

Finally, according to another aspect of the present invention, a hoist apparatus including the driving wheel safety line assembly can be provided, so that it is easy to operate, adds aesthetics to the appearance, A relatively simple hoist device such as a blind can be provided.

As described above, the embodiments of the present invention described above should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

3a: rotating rod 3d: stopper-combined extension member
4b: hoist drive device
7: Safety cover device 70: Safety cover
70a: body 70b: traction weight
71: Support member

Claims (14)

Which is used in a drive wheel safety line assembly of a hoist drive apparatus including a rotary string (3a) for rotating a pulley of a wheel drive member that drives a hoist rotary shaft, and which is capable of driving the pulley through operation with the rotary string As a cover device,
A safety cover (70, 70 ') which can be retracted when the one-side pulling part of the rotary string penetrates inside and drives the pulley by pulling the one-side pulling part of the rotary string; And
A support member (71, 71 ') for mechanically connecting the safety cover (70, 70') to the cap member of the hoist drive device;
/ RTI >
The safety covers 70 and 70 '
A body (70a, 70a ') in which a through hole is formed so that the left and right pulling portions of the rotary string penetrate into the inside;
Means for guiding the left and right pulling portions of the rotary string to the through holes of the bodies 70a and 70a 'provided at the upper ends of the bodies 70a and 70a'; And
Each of the ends of the right and left pulling portions of the rotary shaft is completely separated from the safety covers 70 and 70 'while being disposed at the lower ends of the bodies 70a and 70a' and facing the safety covers 70 and 70 ' Means for stopping the system;
Wherein the safety cover assembly comprises a plurality of guide rails. The method according to claim 1,
Characterized in that the means for guiding comprises two draw-in holes spatially separated from each other on the upper side, and a 'Y' -shaped draw-in guide (70c) Safety cover device used in assembly. The method according to claim 1,
Wherein the body (70a) has one through hole and is extendable and retractable in the longitudinal direction. The method according to claim 1,
The stopping means comprises two traction holes which are spatially separated from each other on the lower side, and a traction weight 70b in the reverse < RTI ID = 0.0 > Y & Wherein a swelling portion of the left and right pulling portions of the driving shaft is caught by the pulling hole to perform a stopping operation. The method according to claim 1,
Wherein at least one of the body, the guide means, and the body and the stopping means is coupled to the weight nut (70b4, 70c4). The method according to claim 1,
Wherein the body (70a ') has two through holes separated by a partition wall, and the guide of the rotary bar is naturally formed in the partition wall of the through holes. The method according to claim 6,
The stopping means also includes a hollow body cover member 70b3 'having two through holes separated by a partition so as to correspond to the body 70a', and the inside of the through- Wherein the safety cover includes a through hole. 8. The method of claim 7,
Further comprising a tube member (3e2) having two hollow tubes for sliding the inside of each through hole of the hollow body cover member together with the movement of the rotating string while the left and right pulling portions of the rotating string penetrate, Safety cover device used in safety line assembly. The method according to claim 1,
The body 70a 'has two through holes separated by a partition wall,
Wherein the stopping means is configured to stop the swelling portion of the right and left pulling portions of the rotary string by being caught by two through holes separated by the partition wall. 9. The method of claim 8,
Wherein each hollow tube of the tubular member (3e2) is non-flexible and has a length corresponding to a length of one stroke of the left and right pulling portions of the rotating string. At least one pick-up member for driving a direct hoist rotary shaft, and a wheel drive member having a drive wheel,
A pulley integrally formed with the wheel drive member;
A rotating shaft (3a) drawn out to the outside for rotating the pulley and hanging downward by a predetermined length; And
The safety cover device according to any one of claims 1 to 10, wherein the right and left pulling portions of the rotary string are inserted into the upper end of the rotary string to penetrate to the lower end thereof and cover the rotary string from the outside to prevent the rotary string from being exposed. (7, 7 ');
Wherein the drive wheel safety line assembly of the hoist drive device comprises: 12. The method of claim 11,
Characterized in that the swelled portion of the right and left pulling portions of the rotary string is a first stopper and a plurality of extension members (3d, 3d ') which extend an additional rotary string to the rotary string, Safety line assembly. 13. The method of claim 12,
, And a stick member (3e) connected to the first stopper-like extension members (3d, 3d '),
The stick member 3e includes a third rotary string 3e1 connected to the first stopper members 3d, 3d ', 3d "and a third stopper 3e1 connected to the end of the third rotary string 3e1, (3e3) extending in the axial direction of the hoist. A hoist apparatus comprising the drive wheel safety line assembly of claim 11.

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