JP4401148B2 - Elevator tail cord steady rest device - Google Patents

Description

  The present invention relates to a tail cord steadying device for an elevator that avoids the influence of tail cord swinging caused by various factors such as shaking of a building due to an earthquake or wind, traveling speed, and the like.

  A conventional general elevator is configured as shown in FIG. (A) is a cross-sectional view of the hoistway, (b) is a cross-sectional view taken along the line C-C shown in (a), and (c) is a DD shown in (b). It is arrow sectional drawing.

  In this elevator, as shown in FIGS. 9A to 9C, a hoistway 51 is provided at a necessary place of a building, and a pair of guide rails 52, 52 are installed in the vertical direction inside the hoistway 51. Yes. The car 53 is movably provided by being engaged with guide rails 52 and 52 via guides 54 provided on both sides of the car.

  A tail cord 56 is suspended from the car 53 via a hitch 55. The tail cord 56 includes a plurality of signal lines that supply power to the car 53 and include signal lines for transmitting and receiving control signals to and from the elevator control panel.

  By the way, in an elevator that requires countermeasures against the tail cord 56 swinging due to the shaking of the building due to an earthquake or wind, or an outdoor type elevator without a hoistway wall, the building shakes or the outdoor wind due to the earthquake or wind described above is received. As a result, the tail cord 56 swings.

  Therefore, if the tail cord 56 suspended from the car 53 swings, problems such as being caught by other equipment and being damaged, or causing the tail cord itself to break, arise. A hoistway duct 57 for raising and lowering the tail cord 56 in the direction is formed, the hitch 55 protruding from the car 53 is guided to the hoistway duct 57 side, and the tail cord 56 is led from the tip side of the hitch 55 to the hoistway duct 57. It is configured to hang down.

  By the way, in the elevator system as described above, when the tail cord 56 swings violently due to an earthquake or wind, the tail cord 56 pops out from the gap 58 of the hoistway duct 57 and is caught by other equipment and damaged. The tail cord itself is damaged such as breaking. The swing of the tail cord 56 becomes more and more intense as the building becomes taller, and an appropriate swing suppression measure has been desired.

  The present invention has been made in view of the above circumstances, and even if the tail cord oscillates violently due to an earthquake or wind, the tail cord is reliably prevented from oscillating and the jump out of the hoistway duct is avoided in advance. An object of the present invention is to provide a tail cord steadying device for an elevator.

In order to solve the above-described problems, an elevator tail cord steadying apparatus according to the present invention includes a main rope that suspends the car due to an earthquake or a strong wind, and a compensator chain that is suspended below the car. A means for detecting the swing of the compen- sion rope, and a pivotable attachment to the wall surface of the hoistway perpendicular to the direction of the hitch protruding from the car. Is attached to the opposite surface side of the duct gap of the rope steady frame, and when the roll is turned by the rotation of the rope steady frame, the gap of the hoistway duct is reduced. By providing a cord stabilization frame that is set so as to straddle the horizontal state, the tail cord jumps out of the gap together with the main rope during an earthquake or strong wind Can be prevented at the same time, moreover parts in contact with the hitch is not required, it is possible to realize a tail code steadying device comfortable elevator with no vibration and noise.

  In the present invention, when a tail cord hung from a hitch protruding from a car through a gap in the hoistway duct is hung in the hoistway duct and lifted up and down, it always straddles the gap in the hoistway duct. Since a cord fixing member such as a bar is provided and the hitch can be passed without being restricted by the cord fixing member when the car passes, the tail cord can be lifted even if the tail cord swings greatly due to an earthquake or wind Jumping out from the gap between the road ducts can be avoided in advance.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a configuration diagram showing a first embodiment of an elevator tail cord steadying apparatus according to the present invention. 1A is a cross-sectional view of the hoistway, FIG. 1B is a cross-sectional view taken along the line A-A shown in FIG. 1A, and FIG. 1C is B shown in FIG. It is -B arrow sectional drawing.

  The tail cord steadying apparatus according to the present invention is applied not only to the general elevator described in the conventional example but also to various types and types of elevators. Here, for convenience of explanation, the elevator described in the conventional example is used. Will be described as an example.

  In the elevator, a hoistway 1 is provided at a necessary location of a building, and a pair of guide rails 2 and 2 are installed so as to face each other in the vertical direction inside the hoistway 1. The car 3 is engaged with the guide rails 2 and 2 via guides 4 provided on both sides of the car, and is movably provided along the guide rails 2 and 2.

  A tail cord 6 is suspended from the car 3 via a hitch 5, and the tail cord 6 is provided to hang down on a hoistway duct 7 formed in one side wall of the hoistway 1. The tail cord 6 is a line assembly including a power supply line that supplies electric power to the car 3, a signal line that controls transmission of a control signal to and from an elevator control panel (not shown), and the like.

  The hoistway duct 7 is formed with a gap 8 for allowing the hitch 5 to pass in the vertical direction of the duct so as to hold the tip end side of the hitch 5 protruding from the car 3 and raise and lower the tail cord 6 in the duct. Has been.

  Further, an L-shaped cord stopper bar 11 is disposed so as to straddle the gap 8 formed in the hoistway duct 7. The cord stop bar 11 is formed in an L shape by bending a portion relatively close to the rear end portion, and the bent portion is pivotally supported by a rotation fulcrum 12. A weight 13 having a required weight is suspended from the cord stop bar 11 via a link fulcrum 14.

  Further, the tip end side of the cord stopper bar 11 extends across the gap 8 in a state in which it can float freely on the other side portion side of the hoistway duct 7. In addition, the other end portion side of the hoistway duct 7 is formed with a bar tip accommodating recess 15 that can be immersed in a state in which the tip portion of the cord stopper bar 11 can be moved freely.

  The cord stop bar 11 is attached to at least one place in the vertical direction of the hoistway duct 7 and is attached to a plurality of places in consideration of the height of the building, the magnitude of the swing of the building due to wind, and the like.

  Therefore, in the tail cord steadying apparatus as described above, the weight of the weight 13 is always used, and the cord retaining bar 11 is kept horizontal across the gap 8. As a result, when the car 3 moves up and down, even if the tail cord 6 suspended from the car 3 is shaken and is likely to jump out of the gap 8, the tail cord 6 comes into contact with the cord stop bar 11 to contact the tail cord 6. Oscillation of the cord 6 can be suppressed, and jumping out from the gap 8 can be avoided in advance.

  When the car 3 passes through the attachment point of the cord stop bar 11, the hitch 5 protruding from the car 3 pushes up or pushes down the cord stop bar 11 with a pressing force against the weight of the weight 13. The stopper bar 11 has the rotation fulcrum 12 as a rotation axis, and the tip end side of the cord stopper bar 11 escapes in either the upper or lower direction, so that the hitch 5 can pass smoothly. Then, after passing the car 3, the weight of the weight 13 is used to return the cord stopper bar 11 to the original horizontal state.

  Therefore, according to the embodiment as described above, since the cord stopper bar 11 is almost always set across the gap 8 of the hoistway duct 7 except for a moment when the car 3 passes, the tail cord 6 However, even if it tries to jump out of the gap 8, it is suppressed by the cord stop bar 11, so that it can be prevented from jumping out of the gap 8 and a highly reliable cord steadying device can be realized.

  In the above-described embodiment, the horizontal state of the cord stopper bar 11 is maintained by the weight 13. However, for example, a tension spring is provided instead of the weight, and the horizontal state of the cord stopper bar 11 is set by the initial tension of the spring. The same effect can be obtained even in the configuration to be maintained. Further, the cord stop bar 11 is attached to one side of the hoistway duct 7 so as to straddle the gap 8. However, the cord stop bar 11 is attached so as to straddle the gap 8 from both sides of the hoistway duct 7. The structure may be different. Moreover, the cord stop bar 11 can be easily made using a generally available material such as metal or resin.

  Furthermore, in the said embodiment, although applied about the normal elevator with a hoistway wall, it can apply similarly, for example to an outdoor type elevator.

  Next, FIG. 2 is a block diagram showing another embodiment of the elevator tail cord steadying device according to the present invention.

  Since the basic configuration of the tail cord steadying apparatus is the same as that of FIG. 1, the details will be left to the description of FIG.

  That is, this tail cord steadying device is configured using the L-shaped cord retaining bar 11 in FIG. 1, but in this embodiment, a cord retaining bar 11a having a U-shaped distal end may be used.

  In the case of such a configuration using the U-shaped cord stop bar 11a, not only the area for closing the gap 8 formed in the hoistway duct 7 is increased, but the height dimension 16 is substantially increased. Therefore, the performance of preventing the tail cord 6 from jumping out is greatly improved as compared with FIG.

(Second Embodiment)
FIG. 3 is a block diagram showing a second embodiment of an elevator tail cord steadying apparatus according to the present invention.

  Since the basic configuration of this elevator tail cord steadying apparatus is the same as that of the embodiment shown in FIG. 1, details will be left to the description of FIG.

  In this embodiment, instead of the L-shaped cord stopper bar 11 or the U-shaped cord stopper bar 11a, for example, four pieces are provided on one side of the hoistway duct 7 with the gap 8 of the hoistway duct 7 interposed therebetween. A rotating wing 17 composed of a wing is rotatably supported by a rotating fulcrum 12 and is always freely rotatable. Each wing of the rotary wing 17 is formed to have a length that spans the gap 8 with a margin.

  According to such a tail cord steadying device, the rotary wing 17 is normally set such that any one of the plurality of wings straddles the gap 8. In this state, when the car 3 passes, the rotating wings 17 are pushed by the hitch 5 and rotate to pass the hitch 5. After passing the car 3, the other wings of the rotating wings 17 rest in a state of returning to the original state so as to straddle the gap 8.

  Therefore, according to this embodiment, in addition to the same effects as the first embodiment, there are few movable parts, the rotary blade 17 itself can be integrally formed, and the number of parts is also small, so it is reliable at low cost. A highly reliable tail cord steadying device can be realized.

  In the above embodiment, since the rotary wing 17 is mounted so as to be freely rotatable, one wing of the rotary wing 17 is completely set in the horizontal state in the gap 8 after passing the car 3. However, for example, if an adsorbing body 18 such as a magnet having a small attractive force is installed on one or both of the rotation fulcrum 12 as a central axis, after passing the car 3, Since it acts to adsorb one wing of the rotating wing 17, the other wing that is orthogonal to the wing can be set in a completely horizontal state in the gap 8. In this case, the rotary blade 17 needs to be made of a material that can be adsorbed by the adsorbent 18.

(Third embodiment)
FIG. 4 is a configuration diagram showing a third embodiment of an elevator tail cord steadying apparatus according to the present invention.

  Since the basic configuration of this elevator tail cord steadying device is the same as that of the embodiment shown in FIGS. 1 to 3, the details will be left to the description of FIGS. To do.

  In this embodiment, the hitch 5 comes into contact with the car 3 when the car 3 passes, the L-shaped cord retaining bar 11 shown in FIG. 1, the U-shaped cord retaining bar 11a shown in FIG. 2, the rotary feather 17 shown in FIG. The cushioning material 19 is attached to the contact surface.

  If the cushioning material 19 is attached to the contact surfaces of the cord stopper bars 11 and 11a, the rotary wings 17 and the like in this way, when the car 3 moves and approaches and the hitch 5 comes into contact with the bar 11 and the like, the generation factors of vibration and noise However, if the hitch 5 is brought into contact with the cushioning material 18, the impact at the time of bar contact can be reduced.

  Therefore, according to the embodiment as described above, in addition to the same effects as the above-described embodiments, the cushioning material 19 is provided on the contact surfaces of the cord stopper bars 11 and 11a, the rotary blade 17 and the like. The vibration and contact sound of the car 3 can be suppressed, and the elevator can be used in a comfortable state for the elevator user and the building user.

  In this embodiment, the cushioning material 19 is attached to the cord stopper bars 11, 11a, the rotary wings 17 and the like, but the same effect can be obtained even in the configuration attached to the hitch 5 side.

(Fourth embodiment)
FIG. 5 is a configuration diagram showing a fourth embodiment of an elevator tail cord steadying apparatus according to the present invention.

  Since the basic configuration of this elevator tail cord steadying device is the same as that of the embodiment shown in FIGS. 1 to 3, the details will be left to the description of FIGS. To do.

  In this embodiment, the L-shaped cord stopper bar 11 shown in FIG. 1, the U-shaped cord stopper bar 11a shown in FIG. 2, or the rotary blade 17 shown in FIG. It is the structure which provided the permanent magnet or electromagnet 20 and 21 which generate | occur | produces.

  Thus, if the cord retaining bars 11 and 11a, the rotating blades 17 and the hitch 5 are provided with the magnets 20 and 21 that repel each other, the cord retaining bars 11 and 11a and the rotating blades 17 straddle the gap 8 under normal conditions. Although the horizontal state is maintained, when the hitch 5 approaches when the car 3 passes, the magnets 20 attached to the bars 11, 11 a and the rotating blades 17 side rotate in a form to repel the hitch-side magnet 21. Since the bars 11, 11a, the rotary wings 17 and the like always rotate in the direction away from the hitch 5, the bars 11, 11a, the rotary wings 17 and the like escape in the direction of releasing the blockage of the gap 8, so that the hitch 5 is easily Can be passed. Then, after passing the car 3, it returns to the horizontal state across the gap 8 as before.

  According to this embodiment, the effects of the first and second embodiments described above are added, and the bars 11, 11a, the rotating blades 17 and the hitch 5 do not come into contact with each other. The tail cord steady rest device can be realized.

(Fifth embodiment)
FIG. 6 is a block diagram showing a fifth embodiment of an elevator tail cord steadying apparatus according to the present invention.

  Since the basic configuration of this elevator tail cord steadying device is the same as that of the embodiment shown in FIGS. 1 to 3, the details will be left to the description of FIGS. To do.

  In this embodiment, a drive control device 32 having a cord stop bar 31 that can move forward and backward is installed on one side of the hoistway duct 7 with the gap 8 interposed therebetween, and further, a position in the vicinity of the control device 32 in the vertical direction. Hitch approach detection sensors 33 and 34 are installed. The drive control device 32 always advances the cord stop bar 31 in the horizontal direction so as to straddle the gap 8, and when one of the proximity detection sensors, for example, 33 senses the hitch approach, By determining that it has passed and automatically retracting the cord stop bar 31, a state is created in which the hitch 5 can pass freely.

  After passing the car 3, when the other approach detection sensor 34 detects that the hitch has passed, the cord stop bar 31 is released from the retracted state and moved forward so as to straddle the gap 8 which is the original state. Move in the direction.

  Therefore, according to this embodiment, as in the fourth embodiment, the bars 11, 11a, the rotary wings 17 and the hitch 5 do not come into contact with each other. A stop device can be realized.

  Note that one sensor 33 or 34 senses hitch approach and retracts the cord stop bar 31, and the other sensor 33 or 34 senses hitch approach and releases the cord stop bar 31. For example, when a hitch approach is detected by each of the sensors 33 and 34, a hitch detection pulse is sent to the drive control device 32. The drive control device 32 automatically receives the hitch detection pulse and waits for a predetermined time after receiving the hitch detection pulse 31. The evacuation may be released.

  Further, the drive control device 32 may be configured to drive either the advancement or retraction of the cord stopper bar 31 and to drive the other retreat or advancement using a compression spring or an extension spring.

(Sixth embodiment)
FIG. 7 is a block diagram showing a sixth embodiment of an elevator tail cord steadying apparatus according to the present invention.

  Since the basic configuration of this elevator tail cord steadying device is the same as that of the embodiment shown in FIGS. 1 to 3, the details will be left to the description of FIGS. To do.

  In this embodiment, guide members 41 and 41 are provided at both ends of the gap 8 formed in the hoistway duct 7, respectively, and the L-shaped cord stopper bar 11 shown in FIG. 1 and the U-shape shown in FIG. In place of the cord stop bar 11a or the rotary wing 17 shown in FIG. 3, the folding shutters 42u and 42d are disposed so as to close the gap 8 in the vertical direction of the hitch 5 protruding from the car 3. And is adapted to expand and contract as the hitch 5 moves.

  The folding shutters 42u and 42d sandwiching the hitch 5 move in the upward direction when the car 3 is lifted, and with this movement, the lower folding shutter 42d is pulled by the hitch 5 and extends. On the other hand, the upper folding shutter 42u is pushed by the hitch 5 so as to be reduced, that is, folded. Therefore, the folding shutters 42u and 42d provided above and below the hitch 5 are alternately expanded and contracted as the car 3 moves up and down, so that the gap 8 always formed in the hoistway duct 7 by the shutters 42u and 42d. Therefore, the tail cord 6 that is about to jump out of the gap 8 can be completely sealed, and a highly reliable elevator tail cord steadying device can be realized.

(Seventh embodiment)
FIG. 8 is a block diagram showing a seventh embodiment of the tail cord steadying device for an elevator according to the present invention.

  Since the basic configuration of this elevator tail cord steadying device is the same as that of the embodiment shown in FIGS. 1 to 3, the details will be left to the description of FIGS. To do.

  In this embodiment, guide rails 2 and 2 are arranged so as to face each other in the hoistway 1, and one or more appropriate places on one wall surface of the hoistway 1 in a direction perpendicular to the line connecting the guide rails 2 and 2. Of a support rope 43 horizontally mounted on the main rope 44, a main rope 44 for suspending a car due to an earthquake or a strong wind, and a compen- sion rope (not shown) including a compen- sion chain suspended below the car. A swing detecting means for detecting the swing, and an H-shape whose one end is rotatably attached to the support body 43, and when the rope swing is detected by the swing detecting means, it is turned over to suppress the swing of the rope 44 and the like. The rope steady frame 45 is attached to the opposite side of the rope gap of the rope steady frame 45 and the gap 8 of the hoistway duct 7 is in a horizontal state when the rope steady frame 45 rolls over. A stopper frame 46 shake code is set so as to straddle is provided.

  As the swing detection means, for example, a light projecting / receiving element is installed on a hoistway horizontal line that is a predetermined distance away from both sides of the main rope 44. For example, when the main rope 44 swings beyond an allowable range, light is blocked. If the rope steadying frame 45 is turned over so as to be horizontal, for example, by rotating the support body 43, the rope steadying frame 45 and the steady resting of the main rope 44 and the like are detected. The attached cord steady frame 46 is also set so as to straddle the gap 8 of the hoistway duct 7.

  The tail cord steady rest device is stored in the hoistway 1 while standing on the support 43 so that the rope steady rest frame 45 does not come into contact with the car 3 at all times. When the detection means detects the swing of the rope or the like exceeding the allowable range, the rope steady frame 45 rolls over and expands horizontally, while the cord steady frame 46 straddles the gap 8 of the hoistway duct 7, so that the rope and tail Since the vibration of the cord can be suppressed at the same time, and the parts that come into contact with the hitch 5 are not required, a comfortable elevator cord stabilization device free from vibration and noise can be realized.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  Further, the embodiments can be implemented in combination as much as possible, and in that case, the effect of the combination can be obtained. Further, each of the above embodiments includes various higher-level and lower-level inventions, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, when an invention is extracted because some constituent elements can be omitted from all the constituent elements described in the means for solving the problem, the omitted part is used when the extracted invention is implemented. Is appropriately supplemented by well-known conventional techniques.

The block diagram which shows one Embodiment of the tail cord steadying apparatus of the elevator which concerns on this invention. The figure explaining the other example of the cord stop bar which comprises the tail cord steadying apparatus shown in FIG. The block diagram which used the rotary feather | wing as another example of embodiment of the tail cord steadying apparatus of the elevator which concerns on this invention. The block diagram which provided the shock absorbing material in the code | cord | chord stop bar and the rotary wing as other example of embodiment of the tail cord steadying apparatus of the elevator which concerns on this invention. The block diagram which used the magnet as another example of embodiment of the tail cord steadying apparatus of the elevator which concerns on this invention. The block diagram which provided the hitch approach detection sensor as further another embodiment of the tail cord steadying apparatus of the elevator which concerns on this invention. The block diagram which used the folding-type shutter as further another example of embodiment of the tail cord steadying apparatus of the elevator which concerns on this invention. The block diagram which shows other embodiment of the tail cord steadying apparatus of the elevator which concerns on this invention. The figure which shows the structure of the conventional general elevator.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Hoistway, 2 ... Guide rail, 3 ... Car basket, 4 ... Guide, 5 ... Hitch, 6 ... Tail cord, 7 ... Hoistway duct, 8 ... Gap, 11, 11a ... Cord stop bar, 12 ... Rotation fulcrum , 13 ... weight, 17 ... rotating blades, 19 ... cushioning material, 20, 21 ... magnet, 31 ... cord stop bar, 32 ... drive control device, 33, 34 ... hitch proximity sensor, 42u, 42d ... folding shutter, 43 ... support, 44 ... main rope, 45 ... rope steady frame, 46 ... cord steady frame.

Claims (1)

A hoistway duct for storing the tail cord is formed in the hoistway, and the tail cord hung from a hitch protruding from a car through the gap of the hoistway duct is suspended in the hoistway duct. In elevators that go up and down,
A main rope for suspending the car due to an earthquake or a strong wind, and a means for detecting swinging of the compen- sion rope including a compen- sion chain suspended below the car;
A rope steady rest attached to the wall of the hoistway perpendicular to the direction of the hitch protruding from the car and pivoting to prevent the rope from swinging when detecting the rope swing by the detecting means. Frame,
A cord steady frame attached to the opposite side of the duct gap of the rope steady frame and set to straddle the hoistway duct gap horizontally when the rope steady frame is turned over by rotation. A tail cord steadying device for an elevator, comprising:

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