WO2015160211A1 - Descending device - Google Patents

Abstract

The present invention relates to a descending device comprising: a base member; a rope wheel, which is a member combined with the base member to be rotatable around a first rotary shaft, including a driving gear and a locking part wherein a rope is wound and locked; a deceleration wheel, which is a member combined with the base member to be rotatable around a second rotary shaft arranged at a distance away from the first rotary shaft, including a driven gear combined while being engaged with the driving gear, and a rotary plate combined with the driven gear to not be relatively rotatable; a concavely dented mounting part, formed on the outer circumferential surface of the rotary plate; a deceleration member, inserted into the mounting part, having a concave part concavely dented in one side surface thereof; and a deceleration cover for generating frictional force as the inner circumferential surface is in contact with the other side surface of the deceleration member. According to the present invention, it is possible to reduce the use of the deceleration member material, and lower manufacturing costs of the descending device. In addition, the present invention has an effect of reducing the phenomenon that one end of the deceleration member is unevenly worn, and allowing the rope to lift at a constant speed which is not only uniform but also faster than a conventional method as the entire surface of the other side surface of the deceleration member is uniformly in contact with the inner circumferential surface of a lateral plate of the deceleration cover, thereby a frictional force is uniformly generated.

Description

Waning machine

The present invention relates to a stiffener, and more particularly, it is possible to reduce the material use of the deceleration member when manufacturing the stiffener, and to provide a uniform braking force so that the lifting and lowering of the rope can be made at a constant speed even faster than before. It is about a stiffener.

In general, stiffeners allow a distress person to quickly escape from a fire at a safe place in the event of a fire in a high-rise building (such as a building or apartment) (less than 11 stories), which is slowly decelerated by the load of the distress suspended in the loop. It is supposed to descend.

An example of such a conventional steel ball 1 is shown in FIG. 1, which is composed of a base member 2, a speed regulating mechanism disposed on the base member 2, and a lid (not shown) covering the speed regulating mechanism. . At the upper end of the base member 2, a hook hole 3 to which a hook is supported by a stiffener holder (not shown) is drilled, and at the lower end thereof, rollers 12 and 13 which raise and lower safely by preventing twisting of the rope R are provided. , 14) is installed.

In addition, one end of the first shaft 4 and the second shaft 5 is fixed to the base member 2 with a predetermined distance apart. The base member 2 and the cover (not shown) are screwed.

The operating part is composed of an inner ring portion 6 rotatably disposed on the first support shaft 4 and a drive gear 7 integrally formed with the inner ring portion 6. A rope is caught by the inner ring part 6, and the driving gear 7 having the same rotation shaft rotates as the rope moves up and down.

* The reduction unit is driven gear (8) meshing with the drive gear (7), reduction gear (9) integrally formed with the driven gear (8), a plurality of reduction member (10) mounted on the reduction wheel (9) And a deceleration cover 11 surrounding an upper portion of the deceleration wheel 9. The driven gear 8 and the reduction wheel 9 are rotatably disposed on the second support shaft 5. The pitch circle of the driven gear 8 is set smaller than the pitch circle of the drive gear 7 to increase the centrifugal force of the deceleration member 10. The deceleration member 10 is placed on the deceleration wheel 9 to be moved in the radial direction of the second support shaft 5, and the outer circumferential surface of the deceleration member 10 is driven by the centrifugal force due to the rotation of the driven gear 8. The lowering speed of the rope may be reduced by causing friction with the inner circumferential surface of the deceleration cover 11.

However, according to the prior art buckling machine 1, when the deceleration member 10 moves in the radial direction of the second axis axis 5 by the centrifugal force of the deceleration wheel 9, it does not guarantee that the translational movement, the deceleration member (10) As a result of uneven wear at one end and friction with the inner circumferential surface of the deceleration cover 11 is also uneven, there is a problem that the descending speed of the rope R is not constant.

In addition, the stiffener 1 according to the prior art, there is a problem that even in the process of mounting the deceleration member 10 is mounted on the deceleration wheel 9, the play is not possible to maintain a stable posture.

In addition, since the steel bar 1 according to the prior art uses the rollers 12, 13, and 14 having the same radius as shown in FIG. 3, it does not effectively provide a braking force by the rollers. When the descending speed is fast, the sliding phenomenon between the inner ring portion 6 and the rope (R) may be remarkable.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Republic of Korea Patent Publication No. 10-2004-0054886

The present invention has been made to solve the above problems, the object of which is to provide a constant friction and prevention of eccentricity of the reduction member, so that the lifting of the rope is made at a constant speed.

In order to achieve the above object, the steel bar according to the present invention includes a base member; A member coupled to the base member to be rotatable about a first rotational shaft, the rope wheel including a drive gear and a hook portion on which a rope is wound; A member coupled to the base member so as to be rotatable about a second rotational shaft spaced apart from the first rotational shaft, the driven gear being meshed with and coupled to the drive gear, and the relative rotation with the driven gear. A reduction wheel including a rotating plate which is impossible to be coupled; A recess formed in the outer circumferential surface of the rotating plate and recessed in a recess; A deceleration member inserted into the seating portion and having a recessed portion recessed in one side thereof; And a deceleration cover that generates a frictional force by contacting the inner circumferential surface with the other side of the deceleration member.

Here, it is preferable that the seating portion extends for a predetermined length along the circumference of the rotating plate and is recessed concave in the direction of the center of the second rotation axis.

Here, the deceleration member, the recess is formed by a predetermined length along the circumferential direction of the second rotation shaft, it is preferable to have a protrusion formed on each of both ends of the reduction member and protrudes toward the second rotation shaft. .

Here, the seating portion of the rotating plate, it is preferable to be provided with a convex portion projecting in the radial direction of the rotating plate and corresponding to the shape of the recess so that it can be inserted into the recessed portion of the deceleration member.

Here, the steel sheet is a roller that is in contact with the rope, further comprising a first roller, a second roller, a third roller rotatably coupled to the base member, the rotation of the second roller, the third roller The centers are spaced apart from each other by a predetermined distance, and the center of rotation of the first roller lies on an imaginary vertical line segment that intersects the imaginary horizontal line segment connecting the centers of rotation of the second roller and the third roller to each other. It is desirable to be

Here, the mild steel, the distance on the horizontal line segment between the rotation center of any one of the second roller or the third roller and the first roller rotation center, and the radius of any one of the second roller or the third roller The difference between the sum of the first roller radius and the first roller radius is smaller than the diameter of the rope, so that the rope is bent by a predetermined angle.

Here, it is preferable that the bending angle of the said rope is 100 degrees-160 degrees.

Here, it is preferable that the radius of a said 1st roller is larger than the radius of a said 2nd roller and a 3rd roller.

The deceleration cover may include a coupling hole into which a central axis of the rope wheel provided on the first rotation shaft is inserted, and a through hole for screwing, wherein the through hole is opposite to the coupling hole. .

Here, three through holes are provided, and the three through holes and the coupling holes are spaced at equal intervals by 90 ° with respect to the second rotation axis.

According to the gangbang of the present invention, the recess is formed in the outer peripheral surface of the rotating plate recessed; It is inserted into the seating portion, and one side includes the deceleration member is formed in the concave recessed recess, it is possible to reduce the rotation of the rope wheel, it is possible to reduce the use of the deceleration member material , There is an effect that can lower the manufacturing cost of the steel bar.

In addition, since the seating portion is extended by a predetermined length along a circumference of the rotating plate and recessed concave toward the center of the second rotation shaft, the deceleration member may be stably mounted on the seating portion. There is an effect.

In addition, the mild steel, the recess having a recess formed in the circumferential direction of the second rotation axis by a predetermined length, and the projections are formed on each of both ends of the reduction member and protruding toward the second rotation shaft It includes a reduction member. The deceleration member has a mass distributed equally at both ends, so that the rotational moment of inertia becomes large and cannot easily rotate. Accordingly, the movement of the deceleration member by the centrifugal force of the deceleration wheel is a translational movement in which both ends of the deceleration member move by the same distance in the radial direction of the second rotation axis.

Therefore, the waning machine has an effect that it is possible to reduce the phenomenon that one end of the deceleration member is abrasion. In addition, since the lower surface of the other side of the deceleration member is evenly in contact with the inner circumferential surface of the deceleration cover side plate, since the friction force is also generated, the lifting and lowering of the rope is faster than the conventional, but has an effect of having a uniform constant speed. .

In addition, the mild steel is provided with a convex portion protruding in the radial direction of the rotating plate and corresponding to the shape of the concave portion, in the seating portion of the rotating plate, the convex portion is inserted into the concave portion of the deceleration member and the projection of the deceleration member is It becomes a structure that can be inserted into the portion recessed to the sides of the convex portion. As a result, when the deceleration member is seated on the seating portion, there is an effect of maintaining a stable posture because the play is not large.

In addition, the steel sheet, the distance on the horizontal line segment between the center of rotation of any one of the second roller or the third roller and the center of rotation of the first roller, the radius of any one of the second roller or the third roller and The difference between the sum of the first roller radii is smaller than the diameter of the rope so that the rope is bent by an angle of 100 ° to 160 °.

Therefore, since the bending angle of the rope is less than 160 °, the frictional force between the rope and the roller is increased, and thus the moving speed of the rope is effectively reduced, thereby preventing slipping between the hook portion and the rope. Since the bending angle of the rope is more than 100 °, there is an effect that the fatigue applied to the rope can be reduced and the durability of the first roller can be maintained.

And since the descending machine uses the first roller to make the radius of the first roller greater than the radius of the second roller and the third roller, the first roller while increasing the contact surface of the rope to the first roller The frictional force between the roller and the rope is increased to prevent slippage between the hook portion and the rope, and the rope can be easily folded.

In addition, the decelerator, the deceleration cover, the driving hole is inserted into the coupling hole and the threaded coupling for the through hole, the through hole is disposed so that the opposite side of the coupling hole. Therefore, even if the deceleration wheel rotates at a high speed, the decelerator is reliably fixed so that the deceleration cover does not rotate or vibrate about a line segment perpendicular to the line segment connecting the center of the through-hole and the center of the coupling hole, and is perpendicular to the line segment. Therefore, it contributes to the perfect frictional contact between the inner peripheral surface of the reduction plate side plate and the reduction member, there is an advantage that can provide an effective braking force to the rope wheel.

1 is a perspective view of a steel down device according to the prior art.

2 is a plan view of the reduction wheel shown in FIG.

3 is a cross-sectional view of a state in which the rope shown in FIG. 2 passes through a roll part.

4 is a perspective view of the steel bar according to an embodiment of the present invention,

5 is a plan view of the reduction wheel shown in FIG.

6 is a side view of FIG. 4;

FIG. 7 is a cross-sectional view of the rope shown in FIG. 4 passing through a roller unit; FIG. And

FIG. 8 is an enlarged plan view of only the reduction cover illustrated in FIG. 4.

Hereinafter, with reference to the drawings will be described the present invention in more detail. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims.

The spatially relative terms "bottom", "top", "side", etc., as shown in the figures, may be used to easily describe the correlation of one member or component with another member or component. Spatially relative terms should be understood to include terms that differ in orientation of the device in use or operation in addition to the directions shown in the figures, for example, when inverting the elements shown in the figures, other elements. A member described as “top” of may be placed at the “bottom” of another member, thus, the exemplary term “top” may include both the up and down directions. And, accordingly, spatially relative terms may be interpreted according to orientation.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular encompasses the plural unless the context clearly indicates otherwise. In this specification, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and that one or more other features It is to be understood that the presence or addition of numbers, steps, operations, components, parts or combinations thereof is not excluded in advance.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. In addition, the terms defined in the commonly used dictionaries are not ideally or excessively interpreted unless they are specifically defined clearly.

In the drawings, the thickness or size of each part is exaggerated, omitted, or schematically illustrated for convenience and clarity of description. In addition, the size and area of each component does not necessarily reflect the actual size or area.

FIG. 4 is a perspective view of the steel sheet according to an embodiment of the present invention, FIG. 5 is a plan view of the reduction wheel shown in FIG. 4, and FIG. 6 is a side view of FIG. 5.

4 to 6, the stiffener 100 according to an embodiment of the present invention, the base member 110, rope wheel 120, deceleration wheel 130, deceleration member 140, deceleration cover ( 150, and a roller unit 160.

The base member 110 is a metal plate member having a predetermined thickness, and the rope wheel 120, the reduction wheel 130, and the roller unit 160 are coupled to each other.

As shown in FIG. 6, the left end of the base member 110 includes a first roller 161, a second roller 163, and a third roller 165 constituting the roller unit 160 described later. The first center of rotation C1, the second center of rotation C2, and the third center of rotation C3, which serve as the center of rotation, are disposed.

In addition, a first rotating shaft A1 is spaced apart to the right from the center of rotation (C1, C2, C3) of the roller to be the center of rotation of the rope wheel 120 is disposed, the right end of the base member 110 A second rotary shaft A2 is spaced apart from the first rotary shaft A1 and serves as a rotation center of the reduction wheel 130.

 On the base member 110, a first roller shaft (not shown) and a second roller shaft (not shown) are formed to protrude vertically from the base member 110 along the rotation centers C1, C2, C3 of the roller. A third roller shaft (not shown) is provided, and a driving shaft 111 is formed to protrude vertically from the base member 110 along the first rotation shaft A1, and the second rotation shaft ( A driven shaft 113 is formed to protrude vertically from the base member 110 along A2).

In addition, the hook member 115 is disposed on the base member 110 as a hook portion (not shown) provided in the stiffener holder (not shown).

 The rope wheel 120 is a member coupled to the base member 110 to be rotatable about the drive shaft 111 and includes a drive gear 121 and a hook portion 123.

The drive gear 121 is a portion for transmitting power to the driven gear 131, and is composed of a first outer ring portion 1211 and a second outer ring portion 1213 coaxially formed with each other.

The first outer ring portion 1211 and the second outer ring portion 1213 have a diameter of a predetermined length and are spaced apart from each other, and a tooth portion is formed on the outer surface.

In the present embodiment, as shown in Figure 4, the shape of the gear portion formed in the first outer ring portion 1211 and the second outer ring portion 1213 is in the form of a spur gear, but the shape of the gear according to the present invention is a spur gear In addition, the helical gear, the rack gear, the bevel gear, the one gear, and the chain gear may have embodiments, but is not limited thereto.

On the other hand, in the present embodiment, the first outer ring portion 1211 and the second outer ring portion 1213 is configured to have the same diameter and the same tooth so as to be geared at the same time as one driven gear 131 to be described later. Here, the same tooth portion means that the pitch and size of each tooth constituting the tooth portion are the same, and the arrangement relationship corresponds.

The hook portion 123 is a cylindrical portion in which the rope R is wound, and is disposed between the first outer ring portion 1211 and the second outer ring portion 1213, and the first outer ring portion 1211 and The second outer ring part 1213 is spaced apart from each other, and is formed coaxially with the first outer ring part 1211 and the second outer ring part 1213.

The hook portion 123 is formed to have a smaller diameter than the first outer ring portion 1211 and the second outer ring portion 1213. Accordingly, when the rope wheel 120 according to the present embodiment is viewed from the side, the hook portion 123 is disposed between the first outer ring portion 120 and the second outer ring portion 140 having a large diameter, such as an H shape. The shape appears.

On the outer surface of the hook portion 123, a projecting three-dimensional protrusion protruding in the radial direction of the first rotation axis is formed.

The projecting three-dimensional, when the rope (R) is wound around the hook portion 123, the lifting force using the lifting device 100 according to the present invention by increasing the friction force between the rope (R) and the hook portion 123 And the like can be more safely and easily achieved. In this case, a plurality of protruding solids may be formed and have a predetermined spaced interval from each other, and the number and width thereof are not limited.

On the other hand, the coupling between the drive gear 121 and the hook portion 123 may be detachably coupled to each other, or may be integrally formed through a predetermined molding, but is not limited thereto.

At the center of the rope wheel 120, a first shaft hole 25 formed along the coaxial of the drive gear 121 and the hook portion 123 is provided.

The rope wheel 120 is rotatably coupled to the base member 110 by inserting the drive shaft 111 into the first shaft hole (25).

The deceleration wheel 130 is a member provided to decelerate the rotation of the rope wheel 120. The deceleration wheel 130 is coupled to the base member 110 to be rotatable about the driven shaft 113. 131 and the rotating plate 133 are provided.

The driven gear 121 is a member that receives power from the drive gear 131, and a gear part connected to the drive gear 121 in gear is formed on an outer surface thereof. The diameter of the driven gear 131 is smaller than the diameter of the drive gear 121.

The rotating plate 133 is a disk-shaped member that transmits a centrifugal force to the deceleration member 140, and is disposed on the driven gear 131 and is coupled to the driven gear 131 in a non-rotative manner, and is seated. A portion 135 is included.

The seating part 135 is a part providing a surface on which the deceleration member 140 can be inserted, and is recessed in the center of the second rotation shaft A2 on the outer circumferential surface of the rotating plate 133. Is formed.

In the present embodiment, the seating portions 135 are formed to extend in a circumferential direction of the rotary plate 133 by a predetermined length, and four are spaced apart at regular intervals.

On the other hand, the mounting portion 135 of the rotating plate 133, protrudes in the radial direction of the rotating plate 133 so as to be inserted into the recessed portion of the reduction member 140 to be described later corresponding to the shape of the recess The convex part 1351 is provided.

The deceleration member 140 is a member that provides a braking force to decelerate the rotation of the rope wheel 120, and includes a recess 141 and a protrusion 143.

The concave portion 141 is a portion formed on one side of the deceleration member 140 facing the center direction of the second rotation axis A2, and is recessed and formed.

In addition, the concave portion 141 is formed in the central portion of one side of the deceleration member 140 along a circumferential direction of the second rotating shaft A2 by a predetermined length.

The protrusion 143 protrudes toward the second rotation shaft A2, and is formed at each of both ends of the deceleration member 140, thereby providing a pair.

In the present embodiment, the material of the deceleration member 40 is brass, but the material of the deceleration member 40 according to the present invention is not limited thereto. If frictional force can be provided, other metal also reduces the speed of the member 40. It can be a material.

At the center of the reduction wheel 130, a second shaft hole 137 is formed along the coaxial of the driven gear 131 and the rotating plate 133 is provided.

The deceleration wheel 130 is rotatably coupled to the base member 110 by inserting a driven shaft 113 into the second shaft hole 137.

 The deceleration cover 150 is a member that provides a braking force to decelerate the rotation of the rope wheel 120 and includes a main body 151 and a fastening part 55.

The main body 151 is a portion capable of accommodating the deceleration wheel 130 and forms a circular lid shape.

The rope wheel is caused by frictional contact of the other side surface 145 of the deceleration member 140 in the radial direction of the second rotation axis A2 to the inner circumferential surface of the side plate 1513 having a circular band shape of the main body 151. A braking force is generated to slow down the rotation of 120.

On the outer circumferential surface of the disc-shaped upper plate 1511 of the main body 151, a plurality of heat dissipation holes may be released so that heat generated when friction between the inner circumferential surface of the side plate 1513 of the main body 151 and the deceleration member 140 is released. 1515 is formed.

The fastening part 55 is a portion that allows the reduction cover 150 to be fixed on the base member 110, and is provided on an outer circumferential surface of the main body 151.

In this embodiment, the fastening portion 55 is composed of four, one of the fastening portion 55 has a coupling hole (1531) into which the drive shaft 111 is inserted, the remaining three fastening portion 55 ) Has a through hole 1533 for screwing.

The three through holes 1533 and the coupling holes 1531 are spaced apart from each other by 90 ° at equal intervals with respect to the second rotation axis A2.

The roller part 160 is a part for guiding the rope R to prevent the rope R from being twisted, and is disposed on the left side of the rope wheel 120 as shown in FIG. It consists of the roller 161, the 2nd roller 163, and the 3rd roller 165. As shown in FIG.

The first roller 161, the second roller 163, and the third roller 165 are members that can contact the rope R, and the first roller shaft (not shown) on the base member 110 is provided. , The second roller shaft (not shown) and the third roller shaft (not shown) are respectively rotatably coupled.

Longitudinal sections of the rollers 161, 162, and 163 are each formed in a circular shape having predetermined radiuses r1, r2, and r3.

The second roller 163 and the third roller 165 are spaced apart such that the distance L1 between the second center of rotation C2 and the third center of rotation C3 is a predetermined distance.

The first roller 161 intersects the imaginary horizontal line segment H connecting the second center of rotation C2 and the third center of rotation C3 to each other and half the horizontal line segment H. On the imaginary vertical line segment V, the first center of rotation C1 is disposed.

In addition, the first roller 161 is a distance D1 on the horizontal line segment H between the second center of rotation C2 and the first center of rotation C1, and the second roller 163. ) The difference D1- (r1 + r2) between the sum of the radius r2 and the radius r1 of the first roller 161 is arranged to be smaller than the diameter d of the rope.

In addition, the first roller 161 is a distance (D2) on the horizontal line segment (H) between the third center of rotation (C3) and the first center of rotation (C1), and the third roller (165) ) The difference D2- (r1 + r3) between the sum of the radius r3 and the radius r1 of the first roller 161 is arranged to be smaller than the diameter d of the rope.

Meanwhile, the radius r2 of the second roller 163 and the radius r3 of the third roller 165 are the same, and the radius r1 of the first roller 161 is the second roller 163. ) Is larger than the radius r2 and the radius r3 of the third roller 165.

Thereby, it is appropriate that the rope R bends by a predetermined angle α, and the angle α has a value of 110 ° to 160 °.

In this case, when the angle α is less than 110 °, the bending curvature of the rope R is excessively increased by the roller part 160, so that the fatigue degree of the rope R increases and a part of the load that needs to be raised and lowered is the first portion. It is applied to the roller 161 has a disadvantage in that the durability is weakened. In addition, if the angle α exceeds 160 °, the moving speed of the rope R may be too high, so that the lifting is not stable, and the hook part 123 may cause slippage of the rope R. There is this.

In this embodiment, the distance (L1) between the second center of rotation (C2) and the third center of rotation (C3) is 35 mm, any one of the second center of rotation (C2) or the third center of rotation (C3) The distance L2 on the virtual vertical line segment V between the and the first center of rotation C1 is 16.8 mm.

Further, in the present embodiment, the distance D1 on the horizontal line segment H and the third rotation center C3 and the third rotation center between the second rotation center C2 and the first rotation center C1. The distance D2 on the horizontal line segment H between one center of rotation C1 is 17.7 mm, the radius r2 of the second roller 163 and the radius r3 of the third roller 165. Is 8.1 mm and the radius r1 of the first roller 161 is 14 mm. According to the configuration of the present embodiment, the angle α has a value of 150 °.

Hereinafter, an example of the method of using the damper 100 of the above-mentioned structure is demonstrated.

First, the rope (R) is wound around the hook portion 123 of the rope wheel 120, both ends of the rope (R) between the second roller 163 and the first roller 161 and Passes between the third roller 165 and the first roller 161. `

As the rope R moves up and down, the rope wheel 120 rotates around the drive shaft 111.

As the rope wheel 120 rotates, the driven gear 131 geared to the drive gear 121 also rotates.

Here, as the diameter of the driven gear 131 is smaller than the diameter of the drive gear 121, the revolutions per minute (rpm) of the reduction wheel 130 is the revolutions per minute (rpm) of the rope wheel 120 Relatively larger than

Accordingly, the deceleration member 140 inserted into the seating part 135 of the rotating plate 133 is moved in the radial direction of the second rotation shaft A2 by centrifugal force due to the rotation of the deceleration wheel 130. It is moved, and is in contact with the inner circumferential surface of the main body 151 side plate 1513 of the deceleration cover 150.

The other side of the reduction member 140 is in rotational contact with the inner circumferential surface of the body 151 side plate 1513 of the reduction cover 150, thereby providing a braking force to reduce the rotation of the rope wheel 120 by friction occurs. It is possible to reduce the lifting speed of the rope (R).

The sturdy device 100 of the above-described configuration includes: a seating portion 135 formed on an outer circumferential surface of the rotating plate 133 and recessed concave; The deceleration member 140 is inserted into the seating part 135 and includes the deceleration member 140 formed with the concave portion 141 recessed on one side thereof, thereby reducing material use of the deceleration member 140. And, there is an advantage that can lower the manufacturing cost of the steel bar (100).

In addition, since the seating portion 100 extends by a predetermined length along the circumference of the rotating plate 133 and is recessed in the center direction of the second rotating shaft A2, The deceleration member 140 has an advantage that it can be stably mounted to the seating portion 135.

In addition, the mild steel 100 is formed in each of the concave portion 141 and the both ends of the deceleration member 140 formed in the circumferential direction of the second rotation axis (A2) by a predetermined length, the second It includes the deceleration member 140 having the protrusion 143 protruding toward the rotation axis (A2). The deceleration member 140 has a mass distributed equally at both ends thereof, so that the rotational moment of inertia becomes large and cannot easily rotate. Accordingly, the movement of the deceleration member 140 by the centrifugal force of the deceleration wheel 130 is a translational movement in which both ends of the deceleration member 140 move by the same distance in the radial direction of the second rotation axis A2. Will be

Therefore, the waning machine 100 has the advantage that the phenomenon that the one end portion of the deceleration member 140 is abrasion is reduced. In addition, since the lower body 100, the front surface of the other side 145 of the deceleration member 140 evenly contacts the inner circumferential surface of the side plate 1513 of the deceleration cover 150, the friction force is also generated as a constant, the rope ( R) has the advantage of having a uniform constant speed.

In addition, the mild steel 100 is provided with a convex portion 1351 protruding in a radial direction of the rotating plate 133 and corresponding to the shape of the concave portion 141 on the seating portion 135 of the rotating plate 133. The convex portion 1351 is inserted into the concave portion 141 of the deceleration member 140, and the protrusions 143 of the deceleration member 140 are recessed to both sides of the convex portion 1351. It becomes a structure that can be inserted. Thus, when the deceleration member 140 is seated on the seating portion 135, there is an advantage that the play is not large and maintain a stable posture.

In addition, the stub 100 is the horizontal between the rotation center (C2, C3) of any one of the second roller 163 or the third roller 165 and the rotation center (C1) of the first roller 161. Distances D1 and D2 on the direction line segment H, the radiuses r2 and r3 of any of the second roller 163 or the third roller 165 and the radius r1 of the first roller 161. The difference between the sum of ((D1- (r1 + r2), D2- (r1 + r3)) is made smaller than the diameter d of the rope so that the rope is bent by an angle of 100 ° to 160 °. .

Therefore, since the bending angle α of the rope R becomes less than 160 °, friction force between the rope R and the rollers 161, 162, and 163 is increased, so that the rope R has the rope R By effectively reducing the moving speed of the), it is possible to prevent the slip between the hook portion 123 and the rope (R), and the bending angle (α) of the rope (R) is more than 100 ° because The fatigue applied to the rope R may be reduced, and the durability of the first roller 161 may be maintained.

The first and second rollers 100 have a radius r1 of the first roller 161 larger than the radiuses r2 and r3 of the second roller 163 and the third roller 165. Since 161 is used, the frictional force between the first roller 161 and the rope R is increased while the contact surface of the rope R with respect to the first roller 161 is increased so that the hook part 123 is used. And there is an advantage that can prevent the slip between the rope and the rope (R) is an advantage that can easily implement the structure to be folded.

In addition, the mild steel 100, the deceleration cover 150, the through hole 551 for screwing the coupling hole (1531) that can be inserted into the drive shaft 111, the through hole 551 ) Is disposed to be opposite to the coupling hole 1531. Therefore, the stiffener 100, even if the deceleration wheel 130 rotates at a high speed, the deceleration cover 150, the line segment connecting the center of the through-hole 1533 and the center of the coupling hole (1531) Since it is fixed so as not to rotate or vibrate about half and perpendicular to the line segment A3, it contributes to the perfect frictional contact between the inner peripheral surface of the reduction plate 150 side plate 1513 and the reduction member 140, and the rope wheel There is an advantage that can provide an effective braking force to (120).

While the above has been shown and described with respect to preferred embodiments and applications of the present invention, the present invention is not limited to the specific embodiments and applications described above, the invention without departing from the gist of the invention claimed in the claims Modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical idea or the prospect of the present invention.

[Description of the code]

Explanation of symbols on major parts of drawing

100: strong steel 110: base member

111: drive shaft 113: driven shaft

115: hook hole 120: rope wheel

121: drive gear 1211: first outer ring portion

1213: second outer ring portion 123: hook portion

1231: projecting solid 25: first shaft hole

130: deceleration wheel 131: driven gear

133: rotating plate 135: mounting portion

1351: convex portion 137: second shaft hole

140: reduction member 141: recess

143: protrusion 145: the other side

150: reduction cover 151: main body

1511: top plate 1513: side plate

1515: heat release hole 153: fastening portion

1531: coupling hole 1533: through hole

160: roller portion 161: first roller

163: second roller 165: third roller

A1: first axis of rotation A2: second axis of rotation

A3: Half line segment perpendicular to the line connecting the center of the through hole and the center of the coupling hole

C1: first center of rotation C2: second center of rotation

C3: third rotation center

α: angle of bending of rope

r1: radius of the first roller

r2: radius of the second roller

r3: radius of the third roller

L1: distance between the second rotation center and the third rotation center

L2: distance on the imaginary vertical line between the centers of rotation of the second and third rollers and the first roller

D1: distance on the imaginary horizontal line between the second roller and the center of rotation of the first roller

D2: distance on an imaginary horizontal line between the third roller and the center of rotation of the first roller

Claims (10)

A base member; A member coupled to the base member to be rotatable about a first rotational shaft, the rope wheel including a drive gear and a hook portion on which a rope is wound; A member coupled to the base member so as to be rotatable about a second rotational shaft spaced apart from the first rotational shaft, the driven gear being meshed with and coupled to the drive gear, and the relative rotation with the driven gear. A reduction wheel including a rotating plate which is impossible to be coupled; A recess formed in the outer circumferential surface of the rotating plate and recessed in a recess; A deceleration member inserted into the seating portion and having a recessed portion recessed in one side thereof; And And a deceleration cover which generates a frictional force by causing an inner circumferential surface to contact the other side of the deceleration member. The method of claim 1, The seating portion is extended as long as a predetermined length along the circumference of the rotating plate, and the stiffener, characterized in that recessed concave in the direction of the center of the second rotation axis. The method of claim 1, The deceleration member is characterized in that the recess is formed by a predetermined length along the circumferential direction of the second rotary shaft, and has a projection formed on each of both ends of the reduction member and protruding toward the second rotary shaft . The method of claim 1, The seating portion of the rotary plate, characterized in that the protrusion provided in the radial direction of the rotary plate and the convex portion corresponding to the shape of the recess so that the recess can be inserted into the recess. The method of claim 1, A roller contactable with the rope, further comprising a first roller, a second roller, and a third roller rotatably coupled to the base member, The rotation centers of the second roller and the third roller are spaced apart from each other by a predetermined distance, and the rotation center of the first roller and the virtual horizontal line segment connecting the rotation centers of the second roller and the third roller to each other. A stubborn body lying on an intersecting imaginary vertical line segment. The method of claim 5, The distance on the horizontal line segment between the center of rotation of either the second roller or the third roller and the center of rotation of the first roller, the radius of any one of the second roller or the third roller, and the first roller radius As the difference between the sum of, is formed smaller than the diameter of the rope, the rope is characterized in that the rope is bent by a predetermined angle. The method of claim 6, The angle of bending of the rope, characterized in that the stub is 100 ° to 160 °. The method of claim 5, The radius of the said 1st roller is strong, characterized in that larger than the radius of the second roller and the third roller. The method of claim 1, The deceleration cover includes a coupling hole into which the central axis of the rope wheel provided on the first rotation shaft is inserted, and a through hole for screwing. And the through hole is opposite to the coupling hole. The method of claim 9, The through hole is provided with three, characterized in that the three through holes and the coupling hole is spaced apart at equal intervals by 90 ° with respect to the second axis of rotation.

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