JP6468638B2 - Rope type home safety fence - Google Patents

Description

  The present invention relates to a rope-type home safety fence, and more particularly to a rope-type home safety fence that automatically adjusts the tension of a rope for a protective fence so as to always have an appropriate value.

  In recent years, rope-type home safety fences have been proposed for station platforms (Cited document 1). A rope-type home safety fence is a kind of home door using a lifting rope. Passing multiple ropes horizontally along the edge of the railway line of the station platform, raising and lowering the rope according to the movement and state of the train entering the railway line, and the passengers on the station platform with the rope placed at the lowered position To prevent the fall, etc., and to ensure its safety. In the rope type home safety fence, when the passenger leans against the rope stretched in the horizontal direction, a certain tension (tension) is applied to the rope so as not to jump out to the track side. ing. Conventionally, in order to give a certain tension to the rope, for example, a spring or the like is provided between the connecting portion provided in the support column and the restoring force of the spring is used. A configuration in which a weight is coupled to the end of the rope and tension is applied using the weight of the weight is also employed.

JP 2014-1111415 A

  In the conventional rope type home safety fence, a metal wire such as stainless steel used as a material for the core shaft of the rope has a characteristic of expanding and contracting according to a change in the ambient temperature. When the amount of expansion and contraction of the wire exceeds the amount of deformation of the spring, a mechanism for applying a necessary tension to the rope does not work, and a situation in which an appropriate tension cannot be applied to the rope occurs. When this happens, passengers on the station platform cannot be protected safely. As a technique for solving such a problem, it is conceivable to increase the amount of deformation of the spring and moderate the change in tension due to the expansion and contraction of the rope. However, in the case of such a method, it is necessary to increase the length of the spring, and there is usually a problem that it is extremely difficult to secure a space.

  In view of the above problems, an object of the present invention is to provide a rope-type home safety fence that detects a change in tension of a rope suspended as a safety fence and automatically adjusts the tension to an appropriate value. It is in.

  The rope-type home safety fence according to the present invention is configured as follows in order to achieve the above object.

The first rope-type home safety fence (corresponding to claim 1) spans at least one rope along the edge of the platform in a section between at least two columns installed on the station platform. The at least one rope is moved up and down by the provided lifting drive device, and a tension adjusting device that automatically adjusts the tension of at least one rope is provided in the moving mechanism section provided in the support column to adjust the tension. The device is configured to be movable up and down by a moving mechanism .

In the rope-type home safety fence described above, at least one rope is bridged along the edge of the platform in a section between at least two columns installed on the station platform, and the at least one elevator drive device provided on the column supports the at least one rope. One rope is provided so as to move up and down, and a tension adjusting device for automatically adjusting the tension of at least one rope is provided in the moving mechanism provided on the support column. When the tension of at least one rope stretched with a preset appropriate tension is changed from an appropriate value due to the environmental temperature, etc., the change in the tension is detected. The rope tension is automatically adjusted so that it becomes the proper value again. As a result, when the rope functions as a safety protection fence, the rope can always be held with an appropriate tension, so that the safety of the passenger can be reliably maintained. Furthermore, when an abnormality such as breakage or elongation occurs in the rope, it can be promptly and appropriately dealt with as a countermeasure against the abnormality.

  In the second rope type home safety fence (corresponding to claim 2), preferably, the tension adjusting device includes a tension measuring means (tension sensor 31) for measuring the tension of the rope, and a tension measuring means. The measurement signal to be output is input, the appropriateness of the tension is determined, and the control means (control unit 34) that outputs the adjustment signal when the tension is not appropriate, and the rope tension is determined based on the adjustment signal output from the control means. A drive mechanism (rope winding mechanism 32 and actuator 33) that adjusts appropriately is provided.

  The third rope type home safety fence (corresponding to claim 3) is preferably characterized in that, in the above configuration, the rope tension is increased when the measured rope tension is lower than an appropriate value.

  The fourth rope type home safety fence (corresponding to claim 4) is preferably characterized in that, in the above configuration, the rope tension is lowered when the measured rope tension is higher than an appropriate value.

  In the above configuration, the fifth rope type home safety fence (corresponding to claim 5) preferably issues an alarm and stops the operation of the control device when the measured rope tension is lower than the rope breakage value. It is characterized by being controlled by.

  According to the present invention, in the rope-type home safety fence, the tension adjusting device that automatically adjusts the tension of at least one rope is provided, and the tension of the rope is always automatically adjusted to an appropriate value and held. When the rope functions as a safety protection fence, even if the ambient temperature or the like changes, the rope can always be held with an appropriate tension, and the safety of the passenger can be reliably maintained. Further, it is not necessary to adjust the tension at the time of maintenance, and it is possible to respond promptly and appropriately when an abnormality such as breakage or elongation occurs in the rope.

BRIEF DESCRIPTION OF THE DRAWINGS The front view of the whole structure of the rope type home safety fence which concerns on this invention is shown, (A) is a front view which shows a rope fall state (closed state), (B) shows a rope raise state (open state). It is a front view. The side view of a rope type home safety fence is shown, (A) is a side view which shows a rope fall state, and (B) is a side view which shows a rope rise state. It is a figure explaining the principal part structure regarding the raising / lowering drive apparatus and tension | tensile_strength addition apparatus of a rope type home safety fence. It is a block diagram which shows the structure of the principal part regarding control of the rope tension | tensile_strength of a rope type home safety fence. It is a flowchart which shows the control content of the rope tension | tensile_strength of a rope type home safety fence.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments (examples) of the present invention will be described below with reference to the accompanying drawings.

  With reference to FIGS. 1-3, the whole structure of a rope type home safety fence is demonstrated notionally.

  In each of FIGS. 1 and 2, the state (A) shows a closed state where the rope descends and functions as a protective safety fence, and the state (B) shows the open state where the rope rises. When the rope descends and is in the closed state, when the train enters or stops, when the train departs, there is no train on the track (track), and the closed state causes the passenger to fall on the track. Or contact with the train. When the rope is raised and in the open state, the train is completely stopped at the station platform and passengers get on and off through the open vehicle door.

  In FIG. 1, the one part area | region of a rope type home safety fence is shown. The section is a section in which three columns (or posts) are arranged as an example. The distance between the columns is, for example, a distance according to the length of one vehicle of the train, but in the illustrated example of FIG. Is shown. The left part of the rope is also cut and omitted.

  In FIG. 1, as an example of a basic configuration, a rope-type home safety fence is composed of three columns (or posts). FIG. 1 shows a rope-type home safety fence viewed from the platform side toward the track (track) side. The rope-type home safety fence is a state in which a plurality of support columns (in the illustrated example, for example, three support columns 11A, 11B, and 11C) are erected at a predetermined interval along the entire edge of the station platform 12 on the track side. Provided. The number of columns is determined according to the length of the station platform, the length of the train, the length of one vehicle, and the like. In FIG. 1, a support column 11A located at the right end and two columns 11B and 11C continuing toward the left side of the support column 11A are shown. A plurality of support columns are arranged side by side on the left side of the leftmost support column 11C shown in FIG. 1, but the illustration in FIG. 1 is omitted. Of the three columns 11A, 11B, and 11C, 11A is a column positioned at the right end (hereinafter referred to as “right column”), and 11B and 11C are columns installed between columns at both ends (hereinafter “middle”). It is written as “post”. As described above, a required number of intermediate struts (for example, 11B and 11C) are provided according to the length of the station platform.

  Between the right end strut 11A and the left end strut (not shown), a plurality of ropes 13 are bridged based on the support of the rope by the rope support structure on the plurality of intermediate struts 11B and 11C. As shown in FIG. 2, the plurality of ropes 13 includes a home side rope unit 13 </ b> A and a line side rope unit 13 </ b> B as an example. The structure regarding the rope 13 is not limited to this. As shown in FIG. 2, the home side rope unit 13 </ b> A and the track side rope unit 13 </ b> B are arranged with their positions shifted in the front and rear directions. Each of the home side rope unit 13A and the track side rope unit 13B has a required number of plural ropes 13 spanned, for example, horizontally and at equal intervals. The number of ropes 13 in each of the home side rope unit 13A and the line side rope unit 13B is arbitrary, and for example, the number is preferably 14, but in this illustrated example, for the sake of convenience of explanation, five examples will be described. .

  FIG. 2 is a side view depicting the left side surface of the right end column 11A. In FIG. 2, the platform side rope unit 13 </ b> A is provided so as to be lifted and lowered at a position on the station platform 12 side, and the track side rope unit 13 </ b> B is provided so as to be lifted and lowered at a position on the track region 14 side. Each of the home-side rope unit 13A and the track-side unit 13B is provided so as to be lifted and lowered individually through the slit 15 formed in the vertical direction on each of the right end strut 11A and the intermediate struts 11B and 11C.

  In this rope-type home safety fence, as shown in FIG. 3, a lifting drive device 16 and a tension applying device 17 are individually provided for each of the home side rope unit 13A and the track side unit 13B. In the configuration of this embodiment, as will be described below, for example, the elevating drive device 16 is provided in the intermediate column 11B, and the tension applying device 17 is provided in the right end column 11A.

  The right end support 11 </ b> A includes the tension applying device 17 that pulls one end of each rope 13 and applies tension to the one end of the rope 13. The moving mechanism part 18 which enables a raising / lowering operation | movement smoothly is provided. The tension applying device 17 has a built-in mechanism for pulling the end of each rope 13 for appropriately adjusting the tension applied to the rope 13, and further, a tension for automatically adjusting the tension of each rope 13, as will be described later. Includes a regulator. The moving mechanism unit 18 includes an upper pulley 19, a lower pulley 20, and a belt 21 spanned between them. The tension applying device 17 is fixed to the belt 21 of the moving mechanism unit 18.

  The intermediate support 11 </ b> B includes a rope support lifting member 22 that supports each of the five ropes 13. The rope support raising / lowering member 22 is attached based on the structure movable in the up-down direction. That is, the raising / lowering drive device 16 is provided inside the intermediate column 11B. The elevating drive device 16 includes a drive motor 23 and a power transmission mechanism 24 that elevates and lowers the rope column elevating member 22 based on the rotational force of the drive motor 23. The power transmission mechanism 24 is constituted by, for example, a belt mechanism or a chain mechanism. When the drive motor 23 rotates appropriately based on a control signal provided from the control device 25, the rope support elevating member 22 moves up and down in the vertical direction D1 and moves the rope 13 up and down. The installation direction of the drive motor 23, the installation position of the power transmission mechanism 24, and the like are arbitrary.

  As an example, a height position detector 26 that detects the height position of the end of the rope 13 is provided inside the right end support 11 </ b> A. Specifically, for example, an optical position detector, a movement distance measurement counter, a rotary encoder, or the like is used as the height position detector 26. The position signal output from the height position detector 26 inside the right end support 11 </ b> A is input to the control device 25. In the control device 25, when controlling the lifting operation of the rope support lifting member 22 that moves up and down in the height direction in the intermediate strut 11B, the height position of the rope 13 in the intermediate strut 11B and the end of the rope 13 in the right end strut 11A The height position of the rope support elevating member 22 is controlled so that the height position of the portion matches.

  When the rope-type home safety fence according to the present embodiment is in the closed state (the state shown in FIGS. 1 and 2A), both the home-side rope unit 13A and the track-side rope unit 13B are lowered. Then, for example, the track side rope unit 13B is lowered to the lowest position, and the home side rope unit 13A is lowered intermediately. In this state, the platform-side rope unit 13A and the track-side rope unit 13B function as a protective fence, and maintain the safety of passengers in the station platform 12. When the rope-type home safety fence is in the open state (the state shown in FIGS. 1 and 2B), both the home-side rope unit 13A and the track-side rope unit 13B are lifted and moved to the highest position. As a result, the platform edge along the track area 14 of the station platform 12 is opened, and the passenger can get on and off the train.

  In addition, each said rope 13 is a rope which has required intensity | strength and has flexibility normally. However, in addition, it may be a wire rope or a long, elongated band similar to a rope. As a superordinate concept, it is a long member that prohibits, regulates, or restrains human behavior.

  Next, the tension adjusting device for the rope type home safety fence will be described with reference to FIGS. The tension adjusting device has a function of automatically adjusting the tension of the rope 13 to an appropriate value. The tension adjusting device is provided inside the tension applying device 17.

  FIG. 4 shows a configuration of a main part of a tension adjusting device provided at the right end of one rope 13 as an example. This rope 13 is preferably the top rope when the rope-type home safety fence is in the closed state (the state shown in FIG. 1 and FIG. 2A), that is, one of the home side rope unit 13A. This is the top rope 13. The tension adjusting device is provided inside the tension applying device 17.

  In the tension adjusting device, a tension sensor 31 is attached at an appropriate location near the right end of the rope 13. As the tension sensor 31, for example, a load cell configured to measure and detect strain by a change in electric resistance value is used. The tension sensor 31 measures and detects the tension of the rope 13 generated based on the force (load) applied to the rope 13. The right end of the rope 13 is connected to a rope winding mechanism 32. The rope winding mechanism 32 has, for example, a rotatable wheel-shaped member. The rope winding mechanism 32 is rotationally driven by a tension adjusting actuator 33. The actuator 33 is, for example, a motor. When the actuator 33 drives the rope winding mechanism 32 and rotates the rope winding mechanism 32 in the direction D2 (counterclockwise), the right end of the rope 13 is wound around the rope winding mechanism 32, and the rope The tension generated at 13 increases and increases. When the rope winding mechanism 32 is rotated in the direction opposite to the D2 direction (clockwise), the winding state of the right end of the rope 13 is returned, and the tension of the rope 13 is reduced and lowered. The operation of the actuator 33 is controlled by the control unit 34. The control unit 34 is a control processing unit configured by a computer. The control unit 34 receives the detection signal SIG1 related to the rope tension (T) output from the tension sensor 31, and provides the actuator 33 with a control signal SIG2 for controlling the rotation operation of the actuator 33 based on the detection signal SIG1. . Moreover, the control part 34 gives the alarm signal SIG3 to the monitoring apparatus 35 as needed.

  With reference to the flowchart of FIG. 5, the control content of tension adjustment of the control part 34 performed based on detection signal SIG1 is demonstrated.

  First, a variable (t: number) of tension adjustment times is set, and t = 0 is set for the tension adjustment number t (step S1).

  Next, the rope tension (T [N]) of the rope 13 is measured (step S2). In the tension measurement step S <b> 2, the control unit 34 takes in the detection signal S <b> 1 (rope tension T) output from the tension sensor 31. The controller 34 determines whether the acquired rope tension T is “smaller than T0” or “larger than T3” (determination step S3). “T0” is a tension value for determining that the rope 13 has been cut when the rope tension T becomes smaller than this value. “T3” is a tension value for determining that the rope tension is abnormal when the rope tension T becomes larger than this value. In the determination step S3, if YES, the process proceeds to an error output processing step (step S18), and if NO, the process proceeds to the next determination step S4.

  In determination step S4, it is determined whether or not the rope tension T satisfies the condition “T2 <T <T3”. Here, “T2” is the upper limit [N] of the normal tension value (appropriate value). As a condition for reducing the rope tension T of the rope 13 and automatically adjusting it to an appropriate value, it is necessary to satisfy the condition of “T2 <T <T3”. If YES in determination step S4, the rope tension T is greater than T2, so the process proceeds to determination step SS6 for adjustment to be smaller than T2, and if NO, the next determination step The process proceeds to S5.

  In the determination step S5, it is determined whether or not the rope tension T satisfies the condition “T0 <T <T1”. Here, “T1” is the lower limit [N] of the normal tension value (appropriate value). As a condition for increasing the rope tension T of the rope 13 and automatically adjusting it to an appropriate value, it is necessary to satisfy the condition of “T0 <T <T1”. If YES in the determination step S5, the rope tension T is smaller than T1, so the process proceeds to the determination step S14 for adjustment to be larger than T1, and if NO, the rope tension T is Since the condition of “T1 ≦ <T ≦ T2” is satisfied and the rope tension T is maintained at an appropriate tension, the tension control is terminated.

  The rope tension automatic adjustment control by the control unit 34 executed based on the detection signal SIG1 is executed so that the rope tension T of the rope 13 satisfies the condition of “T1 ≦ <T ≦ T2”. When the rope tension T becomes a value between the lower limit value T1 and the upper limit value T2 of the normal tension value, it is determined as an appropriate value.

  When the rope tension T satisfies the condition “T2 <T <T3” (YES in the determination step S4), it is determined in the determination step S6 whether the tension adjustment count t is greater than 5. If NO in determination step S6, that is, if the number of tension adjustments t is 5 or less, the amount of deviation between the rope tension T and the appropriate value is calculated (step S7), and the motor rotation angle is calculated according to this amount of deviation. (Step S8), the control signal SIG2 related to the motor rotation angle is output to drive the actuator 33, and the rope winding mechanism 32 is driven to rotate in the direction opposite to the D2 direction, thereby reducing the rope tension T of the rope 13. (Step S9). In this way, the rope tension T is lowered. Thereafter, the tension adjustment count t is incremented by 1 (step S10), and the process returns to step S2. If YES in determination step S6, that is, if the tension adjustment count t is greater than 5, an error signal is output as the automatic adjustment of the rope tension T is not properly performed (step S11), and the error signal is sent to the control unit 34. The control unit 34 provides the alarm signal SIG3 to the monitoring device 35 based on the error signal (step S13). Thus, the automatic adjustment control of the rope tension T is completed.

  When the rope tension T satisfies the condition “T0 <T <T1” (YES in the determination step S5), it is determined in the determination step S14 whether or not the tension adjustment count t is greater than 5. The If NO in determination step S14, that is, if the number of tension adjustments t is 5 or less, the amount of deviation between the rope tension T and the appropriate value is calculated (step S15), and the motor rotation angle is calculated according to this amount of deviation. (Step S16), the control signal SIG2 related to the motor rotation angle is output to drive the actuator 33, the rope winding mechanism 32 is rotated in the direction D2, and the rope tension T of the rope 13 is increased (Step S17). ). Thus, the rope tension T is increased. Thereafter, the tension adjustment count t is incremented by 1 (step S10), and the process returns to step S2. If YES in determination step S14, that is, if the tension adjustment count t is greater than 5, an error signal is output as the automatic adjustment of the rope tension T is not properly performed (step S11), and the error signal is sent to the control unit 34. The control unit 34 provides the alarm signal SIG3 to the monitoring device 35 based on the error signal (step S13). Thus, the automatic adjustment control of the rope tension T is completed.

  By repeating the steps S2 to S5, S6 to S9, S10, and S14 to S17, the rope tension T of the rope 13 is finally set in a plurality of stages so that the condition of “T1 ≦ <T ≦ T2” is satisfied. It is controlled separately. If automatic adjustment of the rope tension T cannot be adjusted to an appropriate value even after five attempts, the automatic adjustment control is terminated as an error.

  Next, in the case of YES in the determination step S3, the process proceeds to step S18 as described above. In step S18, an error signal is output as an abnormal state (breakage, elongation, etc.) has occurred in the rope 13 of the rope-type home safety fence, and then the error signal is transmitted to the control unit 34 (step S19). The controller 34 gives an alarm signal SIG3 to the monitoring device 35 based on the error signal (step S20). Then, operation | movement of the apparatus of the whole apparatus of a rope type home safety fence is stopped (step S21). In this way, by constantly monitoring the rope tension T of the rope 13, it is possible to quickly respond when an abnormality occurs in the rope 13.

  The tension adjustment control described above is applied to the top rope 13 of the home side rope unit 13A, but it can also be applied to other ropes.

  The configurations, shapes, sizes, and arrangement relationships described in the above embodiments are merely schematically shown to the extent that the present invention can be understood and implemented. Therefore, the present invention is not limited to the described embodiments, and can be variously modified without departing from the scope of the technical idea shown in the claims.

  The rope-type home safety fence according to the present invention secures passenger safety for a train entering or leaving a station platform using a rising and lowering rope, and maintaining the tension of the rope appropriately to ensure the safety of the passenger. It is used to maintain a reliable and maintenance-free mechanism.

11A strut (right end strut)
11B, 11C Strut (intermediate strut)
DESCRIPTION OF SYMBOLS 12 Station platform 13 Rope 13A Home side rope unit 13B Track side rope unit 14 Track area 15 Slit 16 Lifting drive device 17 Tension applying device 18 Moving mechanism part 22 Rope support lifting member 23 Drive motor 24 Power transmission mechanism 25 Control device 31 Tension sensor 32 Rope winding mechanism 33 Actuator 34 Control unit

Claims (5)

At least one rope is bridged along the edge of the platform in a section between at least two struts erected on the station platform, and the at least one rope is moved up and down by the lift driving device provided on the strut. provided, the tension adjusting device for automatically adjusting the tension of the at least one rope, comprising a moving mechanism provided in the strut, that the tensioning device is movable up and down by the moving mechanism Rope type home safety fence characterized by.   The tension adjusting device receives a tension measuring unit that measures the tension of the rope and a measurement signal output from the tension measuring unit, determines whether the tension is appropriate, and outputs an adjustment signal when the tension is inappropriate. The rope-type home safety fence according to claim 1, further comprising: a control unit; and a drive mechanism that appropriately adjusts the tension of the rope based on the adjustment signal output from the control unit.   The rope-type home safety fence according to claim 1 or 2, wherein when the measured tension of the rope is lower than an appropriate value, the tension of the rope is increased.   The rope-type home safety fence according to claim 1 or 2, wherein when the measured tension of the rope is higher than an appropriate value, the tension of the rope is lowered.   The rope type according to any one of claims 1 to 4, wherein when the measured tension of the rope is lower than a rope break value, an alarm is issued and control of the control device is stopped. Home safety fence.

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