WO2015160211A1 - Dispositif de descente - Google Patents

Dispositif de descente Download PDF

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Publication number
WO2015160211A1
WO2015160211A1 PCT/KR2015/003855 KR2015003855W WO2015160211A1 WO 2015160211 A1 WO2015160211 A1 WO 2015160211A1 KR 2015003855 W KR2015003855 W KR 2015003855W WO 2015160211 A1 WO2015160211 A1 WO 2015160211A1
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WO
WIPO (PCT)
Prior art keywords
roller
rope
deceleration
rotation
center
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Ceased
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PCT/KR2015/003855
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English (en)
Korean (ko)
Inventor
소연실
이영호
정기승
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Individual
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Individual
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Publication of WO2015160211A1 publication Critical patent/WO2015160211A1/fr
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/08—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
    • A62B1/10—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes

Definitions

  • 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.
  • 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.
  • FIG. 1 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. .
  • 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.
  • 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.
  • 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.
  • the steel bar 1 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.
  • 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.
  • 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.
  • 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.
  • 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. .
  • 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.
  • 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
  • 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.
  • the bending angle of the said rope is 100 degrees-160 degrees.
  • 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.
  • 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.
  • 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.
  • the deceleration member may be stably mounted on the seating portion. There is an effect.
  • 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.
  • the waning machine has an effect that it is possible to reduce the phenomenon that one end of the deceleration member is abrasion.
  • 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. .
  • 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.
  • 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 °.
  • 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.
  • 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.
  • 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.
  • FIG. 1 is a perspective view of a steel down device according to the prior art.
  • FIG. 2 is a plan view of the reduction wheel shown in FIG.
  • FIG. 3 is a cross-sectional view of a state in which the rope shown in FIG. 2 passes through a roll part.
  • FIG. 4 is a perspective view of the steel bar according to an embodiment of the present invention.
  • FIG. 5 is a plan view of the reduction wheel shown in FIG.
  • 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. 8 is an enlarged plan view of only the reduction cover illustrated in FIG. 4.
  • 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.
  • 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
  • FIG. 6 is a side view of FIG. 5.
  • 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.
  • 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.
  • 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.
  • 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).
  • 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.
  • 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
  • the helical gear, the rack gear, the bevel gear, the one gear, and the chain gear may have embodiments, but is not limited thereto.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the rope R bends by a predetermined angle ⁇ , and the angle ⁇ has a value of 110 ° to 160 °.
  • 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.
  • the distance D2 on the horizontal line segment H between one center of rotation C1 is 17.7 mm
  • Is 8.1 mm and the radius r1 of the first roller 161 is 14 mm.
  • the angle ⁇ has a value of 150 °.
  • 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.
  • the driven gear 131 geared to the drive gear 121 also rotates.
  • the revolutions per minute (rpm) of the reduction wheel 130 is the revolutions per minute (rpm) of the rope wheel 120 Relatively larger than
  • 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.
  • the deceleration member 140 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.
  • 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.
  • the waning machine 100 has the advantage that the phenomenon that the one end portion of the deceleration member 140 is abrasion is reduced.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 °. .
  • 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.
  • 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.
  • 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).
  • drive gear 1211 first outer ring portion
  • rotating plate 135 mounting portion
  • protrusion 145 the other side
  • roller portion 161 first 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

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Braking Arrangements (AREA)

Abstract

La présente invention concerne un dispositif de descente comprenant : un élément de base ; une poulie pour câble, qui est un élément combiné avec l'élément de base de façon à pouvoir tourner autour d'un premier arbre rotatif, et qui comporte une roue menante ainsi qu'une partie de blocage où un câble est enroulé et bloqué ; une poulie de décélération, qui est un élément combiné avec l'élément de base de façon à pouvoir tourner autour d'un second arbre rotatif placé à distance du premier arbre rotatif, et qui comporte une roue menée combinée tout en étant en prise avec la roue menante, ainsi qu'une plaque rotative combinée avec la roue menée de manière à ce qu'elles ne puissent pas tourner l'une par rapport à l'autre ; une partie de montage concave, formée sur la surface circonférentielle externe de la plaque rotative ; un élément de décélération, introduit dans la partie de montage, ayant une partie concave dont une surface latérale est dotée d'un creux ; et un couvercle de décélération, prévu pour générer une force de frottement lorsque sa surface circonférentielle interne est en contact avec l'autre surface latérale de l'élément de décélération. Selon la présente invention, il est possible de réduire l'utilisation du matériau de l'élément de décélération, et de réduire les coûts de fabrication du dispositif de descente. En outre, cette invention a pour effet de réduire le phénomène d'usure inégale d'une extrémité de l'élément de décélération, et de permettre au câble de monter à une vitesse constante qui est non seulement uniforme mais aussi plus rapide que dans un procédé classique, puisque la totalité de l'autre surface latérale de l'élément de décélération est uniformément en contact avec la surface circonférentielle interne d'une plaque latérale du couvercle de décélération, ce qui assure la génération uniforme de la force de frottement.
PCT/KR2015/003855 2014-04-17 2015-04-16 Dispositif de descente Ceased WO2015160211A1 (fr)

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CN108404306A (zh) * 2018-03-02 2018-08-17 台州市洛克赛工具有限公司 一种智能逃生背包
CN114198437A (zh) * 2020-09-18 2022-03-18 广东电网有限责任公司 一种离心转轮式防坠落自锁安全器

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KR101900487B1 (ko) * 2017-06-08 2018-09-19 주식회사 대성기계 피난기구용 완강기
KR101864205B1 (ko) * 2017-06-22 2018-06-04 신윤익 신발끈 조임 장치
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CN107376137A (zh) * 2017-08-29 2017-11-24 苏州烁耀电子材料有限公司 一种高层用消防缓降器
CN107376137B (zh) * 2017-08-29 2022-11-08 中巨建设有限公司 一种高层用消防缓降器
CN108404306A (zh) * 2018-03-02 2018-08-17 台州市洛克赛工具有限公司 一种智能逃生背包
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CN114198437B (zh) * 2020-09-18 2023-08-01 广东电网有限责任公司 一种离心转轮式防坠落自锁安全器

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