JP6469439B2 - Home fence - Google Patents

Description

  The present invention relates to a platform fence installed on a station platform such as a railway.

  2. Description of the Related Art There is known a home fence that is installed at a track side end of a station platform such as a railroad and that is opened and closed in accordance with the timing of getting on and off the vehicle. There are several types of home fences depending on how they are opened and closed. For example, Patent Literature 1 and Patent Literature 2 disclose an elevating type home fence that opens and closes a blocking bar (blocking bar) that prevents entry.

JP 2014-34309 A International Publication No. 2011/024612

  In the configuration of the lifting device disclosed in FIG. 7 of Patent Document 1, a lifting mechanism having a pulley, a belt, and an electric motor must be prepared for each blocking bar, which tends to increase the manufacturing cost. Further, in the configuration of the lifting device disclosed in FIGS. 5, 6 and 9, 10 of Patent Document 2, the lifting mechanism is further complicated, and in this case also, the manufacturing cost is likely to be high, and the control is complicated. To do.

  Although the number of elevating mechanisms can be reduced with the configuration disclosed in FIG. 8 of Patent Document 1, it is still necessary to mount a power source such as one electric motor on one home fence. Further, when the same lifting mechanism is mounted on each of the left and right support columns, a power source is further required.

  Further, in order to control the lifting and lowering of the blocking bar by providing individual power sources in the left and right struts, it is necessary to provide a sensor for monitoring the position of the blocking bar and control the left and right power sources to operate in synchronization. If synchronization is lost or one of the two fails, a load is applied to the other, leading to failure of the mechanism or power source or burning. In addition, breakage of the blocking bar may be caused.

  An object of this invention is to reduce the manufacturing cost of the raising / lowering type home fence which opens and closes a interruption | blocking part.

In a first invention for solving the above problem, a rope (for example, the belt 26 in FIG. 3) is driven by rotating a pulley, and a blocking portion (for example, FIG. 3) is driven by the driven rope. Elevating type home fence which has a plurality of support columns having built-in lifting mechanisms for moving the first blocking rods 11 and the second blocking rods 12) up and down and opens and closes the blocking units passed between the supporting columns. Because
A power unit that supplies power for rotating the pulley of the elevating mechanism unit is incorporated in any of the plurality of column units, and the column unit (hereinafter referred to as “built-in column unit”) that incorporates the power unit. For example, the power of the power unit passed between the right column 17 in FIG. 2 and a non-built-in column (hereinafter referred to as “non-built-in column”, for example, the central column 18 in FIG. 7) is transmitted. And a power transmission unit having a connecting shaft (for example, the first connecting shaft 62 in FIGS. 2 and 7).

  According to the first invention, power can be distributed and supplied from a single power source to a plurality of lifting mechanisms. Therefore, it is possible to reduce the manufacturing cost by reducing the number of power units mounted.

  The second invention is the home fence according to the first invention, wherein the connecting shaft is passed between the support columns at a predetermined position higher than the blocking portion in the fully opened state.

  According to the second invention, the power transmission unit can be provided without affecting the arrangement configuration of the blocking unit.

  According to a third aspect of the present invention, the power transmission unit includes the connecting shaft (for example, the first connecting shaft in FIG. 7) passed between the built-in support column and the non-built-in support column adjacent to the built-in support column. 62), the connecting shaft (for example, the second connecting shaft 65 in FIG. 7) passed between the adjacent non-built-in support columns, and the joint portion (for example, FIG. 7 or 6 universal shaft joints 66).

  According to the third invention, there are three or more struts to form a plurality of openings adjacent to each other, and a straight line connecting the adjacent struts (substantially a blocking portion when the home fence is viewed from above) (Straight line) is formed in a polygonal line shape. For example, it is suitable when a plurality of openings are provided adjacent to each other at a curved station platform. In addition, conventionally, when two conventional home fences are closely arranged in the longitudinal direction, four supporting columns are required. In the present invention, the supporting columns can be configured with three supporting columns. Can be reduced. Therefore, the reinforcement work of the station platform incidental to the installation of the platform fence can be reduced, and the construction cost can be reduced.

  According to a fourth aspect of the present invention, the pulley is a fixed pulley (for example, the fixed pulley 21 in FIG. 3) that rotates together with the connecting shaft, and the elevating mechanism portion moves up and down in the column portion in which the elevating mechanism portion is built. The movable body has a movable pulley (for example, the movable pulley 24 in FIG. 5), and the cord-like body is fixed at one end side in the support column containing the lifting mechanism and the other end is guided to the fixed pulley. The moving pulley is suspended between the one end side and the other end side, and the blocking portion has a first blocking portion (for example, the first blocking rod 11 in FIG. 3) connected to the moving pulley. A home fence according to any one of the first to third inventions.

  According to the fourth aspect of the invention, further cost reduction and weight reduction can be realized by using a lightweight lifting mechanism portion using a cord-like body and a pulley.

  According to a fifth aspect of the present invention, the blocking unit includes a second blocking unit (for example, the second blocking bar 12 in FIGS. 3 and 5) below the first blocking unit, and the first blocking unit is It is configured to move up and down together with the moving pulley via a linear motion part that is slidably supported up and down in the support column, and the second blocking part is in the same direction as the linear motion part of the cord-like body. It is a site | part which moves, Comprising: It is a home fence of 4th invention connected to the site | part of the predetermined | prescribed height position between the said 1st interruption | blocking part and the said movement pulley.

  According to the fifth aspect, it is possible to provide two blocking portions that move up and down in conjunction with each other. Since the upper and lower blocking sections start to move together, passengers waiting at the station platform can notice the movement. At that time, if your hand or belongings are likely to be pinched, you will be able to take avoidance action. Even if the avoidance action cannot be performed immediately, the distance between the two blocking parts gradually increases and the distance between the two blocking parts gradually decreases. Therefore, the passenger's hand and luggage located between the blocking parts are gradually lifted together with the blocking part. Will naturally leave the barrier. In the first place, the position where the upper and lower blocking portions are close enough to sandwich a hand or baggage is when the blocking unit is sufficiently high, and is a position where a passenger's hand or baggage is not easily pinched. Therefore, the risk of the passenger's hand and belongings being caught is extremely low.

  According to a sixth aspect of the present invention, the power unit is installed at a lower portion of the built-in support column, and the rotating shaft of the power unit and the connecting shaft are connected so as to rotate together with an endless belt. It is a home fence in any 5th invention.

  According to the sixth aspect of the present invention, the internal space of the built-in support column can be effectively used to reduce the size of the support column and reduce the cost and weight.

It is an external view of a raising / lowering platform fence, Comprising: (1) Top view of a fully closed state, (2) Front view seen from the station platform side of a fully closed state, (3) Front view of a fully open state. The top view internal structure figure which shows the structural example of the right support | pillar part of a raising / lowering platform fence. The front view internal structure figure which shows the structural example of the right support | pillar part of a raising / lowering type home fence. The left side internal structure figure which shows the structural example of the right support | pillar part of a raising / lowering platform fence. The right side internal structure figure which shows the structural example of the right support | pillar part of a raising / lowering platform fence. The top view internal structure figure which shows the structural example of the center support | pillar part of a raising / lowering type home fence. The front view internal structure figure which shows the structural example of the center support | pillar part of a raising / lowering platform fence. The front view internal structure figure which shows the structural example of the left support | pillar part of a raising / lowering type home fence. The front view internal structure figure which looked at the right support | pillar part in a full open state from the station platform side. The left side internal structure figure of the right support | pillar part in a full open state. The right side internal structure figure of the right support | pillar part in a full open state. The external appearance top view which shows the structural example of the raising / lowering type home fence which has three right and left openings, and a center. The top view internal structure figure which shows the structural example of the center support | pillar part which shows the modification of the structure difference of a joint part.

[First Embodiment]
FIG. 1 is an external view of a lifting platform fence according to the present embodiment, FIG. 1 (1) is a top view, FIG. 1 (2) is a front view of the fully closed state as viewed from the station platform side, FIG. 3) is a front view of the fully opened state.

  The elevating platform fence 10 of this embodiment is a gate device that permits / blocks entry / exit to / from a vehicle that has entered a station platform by raising and lowering a blocking portion (blocking material) to fully open / close the opening. . The elevating platform fence 10 has a right column part 17, a central column part 18, and a left column part 19 erected at predetermined intervals along the side edge of the station platform 2. A total of two openings are formed, one opening each between the support columns 18 and one between the center support column 18 and the left support column 19. In other words, if the liftable platform fence 10 is a conventional platform fence that forms one opening, it can play the role of two.

  The liftable platform fence 10 has a first blocking bar 11 and a second blocking bar 12 as a blocking part for a right opening when viewed from the front, and a third blocking bar 13 and a second blocking bar as a blocking part for a left opening. 4 blocking rods 14. That is, it has a total of four blocking bars. These four blocking bars are all moved up and down in conjunction with the power of the power unit built in the right column 17.

  Therefore, in the case where the power source is provided for each support column and the blocking rod is controlled to move up and down, not only the individual power source is required, but also a sensor for monitoring the position of the blocking rod is provided to control each power source synchronously. There is a need. In synchronous control, a failure of one power source among a plurality of power sources becomes a total failure, so that the failure rate remains high. In this embodiment, there is no such problem.

  The blocking portion is not limited to a bar (bar), and may be configured to employ a wire, rope, net, sheet, chain, board (plate), or the like. Moreover, the length (in other words, the space | interval of an adjacent support | pillar part) along the home longitudinal direction of a interruption | blocking part can be defined arbitrarily. For example, it may be the length of one vehicle or a length corresponding to one door opening of the vehicle.

  In addition, the liftable platform fence 10 is centered when viewed from the top so that each opening can be arranged close to the curved station platform end even when the track alignment is installed in a curved station platform. A layout in which the column portion 18 is bent into a “K” shape is possible.

Then, as a detailed description of the structure, first, the configuration of the right column portion 17 will be described.
FIG. 2 is a top view internal structure diagram showing a configuration example of the right column portion 17 of the elevating platform fence 10.
FIG. 3 is a front view of the internal structure of the AA cross section.
FIG. 4 is a left side internal structure diagram of the B-B cross section.
FIG. 5 is a right side internal structure diagram of the CC cross section.

As shown in FIGS.
1) an elevating mechanism 20 that moves the first blocking bar 11 and the second blocking bar 12 up and down;
2) a power unit 40 as a power source;
3) A power transmission unit 60 that supplies the power of the power unit 40 to the elevating mechanism unit 20 and transmits / distributes power to the other column units;
4) The control board 90 which is a control part which controls the operation | movement of the raising / lowering platform fence 10 by controlling the power part 40 is provided.

As shown in FIGS. 3 and 5, the lifting mechanism 20 of this embodiment is a lifting mechanism that employs a belt 26 and various pulleys.
In particular,
1) A fixed pulley 21 that rotates on an axis parallel to or substantially parallel to the first blocking bar 11 and the second blocking bar 12 at the upper part of the right column part 17;
2) a linear motion part 22 slidable up and down in the internal space of the right column part 17;
3) a moving pulley 24 connected to the lower part of the linear motion portion 22 lower than the fixed pulley 21;
4) A belt 26 which is an example of a cord-like body in which one end is fixed to the fixed pulley 21 and the other end is fixed to the right column portion 17 by the belt fixing tool 25, and the moving pulley 24 is suspended;
Is provided.

  The linear motion portion 22 is a slider that is slidable along guide rails 23 provided on the inner wall surface of the right column portion 17 on the home side and the track side.

  For example, a belt can be used as the belt 26, but other cords such as a chain, a cable, and a rope may be used.

The right ends of the first blocking bar 11 and the second blocking bar 12 pass through the insertion port 171 (see FIG. 3) provided on the left side surface of the right column portion 17 (the surface facing the central column portion 18). Housed in the department.
The right end of the first blocking bar 11 is connected to the upper part of the linear motion part 22.
The right end of the second blocking bar 12 is further inserted through the insertion port 221 (see FIG. 5) of the linear motion portion 22 and connected to the belt 26. More specifically, the belt 26 moves in the same direction as the linear motion portion 22 and is connected at a predetermined height position between the first blocking bar 11 and the moving pulley 24. Connected by the tool 27.

  The power unit 40 incorporates an electric motor that is driven and controlled by the control board 90, a speed reducer, a brake mechanism, an emergency battery, and the like (not shown), and is installed at the bottom of the right column 17. The power unit 40 is connected to the power transmission unit 60.

As shown in FIG. 3 to FIG.
1) a drive pulley 61 fixed to the output rotating shaft of the power unit 40;
2) a first connecting shaft 62 pivotally supported by the right support column 17 above the first blocking rod 11 and passed to the central support column 18 at a predetermined position higher than the fully opened first blocking rod 11;
3) a transmission pulley 63 attached to the first connecting shaft 62;
4) It has an endless belt 64 that spans a drive pulley 61 and a transmission pulley 63.

  The fixed pulley 21 of the elevating mechanism unit 20 is connected to one end of the first connecting shaft 62 (the right end in FIG. 3). That is, the rotational force by the power unit 40 is supplied to the elevating mechanism unit 20 through the power transmission unit 60.

Next, the structure of the center support | pillar part 18 is demonstrated.
FIG. 6 is a top view internal structure diagram showing a configuration example of the central column 18 of the liftable platform fence 10. FIG. 7 is a front view internal structure diagram of the DD cross section.

The central support 18 is
1) A right elevating mechanism portion 20MR for connecting the left ends of the first blocking rod 11 and the second blocking rod 12 for the right opening to raise and lower them,
2) A left lifting mechanism portion 20ML for connecting the right ends of the third blocking rod 13 and the fourth blocking rod 14 for the left opening and moving them up and down is incorporated.

  The right elevating mechanism unit 20MR and the left elevating mechanism unit 20ML are basically realized in the same manner as the elevating mechanism unit 20 built in the right column 17, so that the same reference numerals are given to the same components. Thus, duplicate explanations are omitted.

  The left end of the first connecting shaft 62 spanned across the central support column 18 and the right support column 17 is connected to the fixed pulley 21 of the right elevating mechanism unit 20MR. The left end of the first blocking bar 11 is fixed to the upper portion of the linear motion portion 22 of the right lifting mechanism portion 20MR through the insertion port 181 on the right side surface (the surface facing the right column portion 17) of the central column portion 18. ing. The left end of the second blocking bar 12 is also inserted through the insertion port 181 and connected to a portion that moves in the same direction as the linear motion portion 22 of the right lifting mechanism portion 20MR by the belt 26 of the right lifting mechanism portion 20MR. .

  On the other hand, the right end of the second connecting shaft 65 spanning the central support column 18 and the left support column 19 is connected to the fixed pulley 21 of the left lifting mechanism unit 20ML. The right end of the third blocking bar 13 is inserted through the insertion port 182 on the left side surface of the central support column 18 (the surface facing the left support column 19), and connected to the upper part of the linear motion unit 22 of the left lifting mechanism unit 20ML. It is fixed. The right end of the fourth blocking bar 14 is inserted into the insertion port 182 and moved to the site where the belt 26 of the left elevating mechanism unit 20ML moves in the same direction as the linear motion part 22 of the left elevating mechanism unit 20ML. They are connected by a connecting tool 27.

  The first connecting shaft 62 and the second connecting shaft 65 are connected by a universal shaft joint 66, and the second connecting shaft 65 and the universal shaft joint 66 together constitute a part of the power transmission unit 60.

  Note that one of the right elevating mechanism unit 20MR and the left elevating mechanism unit 20ML can be omitted. In other words, the left end of the first blocking bar 11 and the right end of the third blocking bar 13 are connected to the remaining linear motion part 22 of the other lifting mechanism unit, and the connecting device 27 connected to the left end of the second blocking bar 12. It can be set as the structure which connects the right end of the 4th block bar 14 to the other side.

Next, the structure of the left support | pillar part 19 is demonstrated.
FIG. 8 is a front view internal structure diagram showing a configuration example of the left column part 19 of the elevating platform fence 10.
The left column 19 includes a lifting mechanism 20L. Each of the left ends of the third blocking bar 13 and the fourth blocking bar 14 for the left opening is connected to the lifting mechanism 20L, and these can be lifted and lowered.

  The elevating mechanism 20L is basically realized in the same manner as the elevating mechanism 20 incorporated in the right column 17, and the same components are given the same reference numerals and redundant description is omitted. That is, the left end of the second connecting shaft 65 spanning the central support column 18 and the left support column 19 is fixed to the fixed pulley 21 of the elevating mechanism 20L. The left end of the third blocking bar 13 passes through the insertion port 191 on the right side surface (the surface facing the central column portion 18) of the left column portion 19 and is fixed to the upper portion of the linear motion portion 22 of the lifting mechanism portion 20L. Yes. The left end of the fourth blocking bar 14 is also inserted through the insertion port 191 and connected to a portion that moves in the same direction as the linear motion portion 22 of the lifting mechanism portion by the belt 26 of the lifting mechanism portion 20L.

Next, operation | movement of the raising / lowering type home fence 10 of this embodiment is demonstrated.
When the vehicle is not entering the station platform 2, the elevating platform fence 10 is in the fully closed state shown in FIGS. The first blocking bar 11 to the fourth blocking bar 14 are at low positions, respectively, and prevent passengers on the station platform 2 from entering the track side. The drive pulley 61 is prevented from moving by a brake built in the power unit 40 (see FIG. 3). Accordingly, since the transmission pulley 63 and the first connecting shaft 62 connected by the endless belt 64 do not move, the lifting mechanism 20 (see FIG. 5) of the right column 17 and the right lifting mechanism 20MR of the central column 18 do not move ( (See FIG. 7). Naturally, the second connecting shaft 65 connected by the first connecting shaft 62 and the universal shaft joint 66 also does not move, so that the left elevating mechanism portion 20ML (see FIG. 7) of the central supporting column portion 18 and the elevating mechanism portion of the left supporting column portion 19 are also provided. 20L does not move (see FIG. 8). That is, if a passenger tries to lift the first blocking bar 11 to the fourth blocking bar 14 upward, none of them will move.

  When a vehicle enters the station platform 2, a signal instructing to open the home fence is transmitted (input) to the control board 90 of the elevating platform fence 10 from the outside as the door of the vehicle is opened. When the signal is received, the control board 90 releases the brake of the power unit 40 and controls the operation of the power unit 40 so that the drive pulley 61 is rotated forward (counterclockwise in FIG. 5).

When the drive pulley 61 is rotated forward, the fixed pulley 21 of the elevating mechanism unit 20 connected via the power transmission unit 60 is also rotated forward (counterclockwise in FIG. 5).
When the fixed pulley 21 rotates in the forward direction, the belt 26 is wound around the fixed pulley 21, and a portion of the belt 26 between “fixed pulley 21 to moving pulley 24 to belt fixing tool 25” is shortened. As a result, the moving pulley 24 and the first blocking bar 11 connected to the moving pulley 24 via the linear motion portion 22 move upward.

  The same thing occurs in the right elevating mechanism 20MR of the central support column 18 to which power is transmitted through the first connecting shaft 62, and power is transmitted through the second connecting shaft 65 connected by the universal shaft joint 66. This also occurs in the left elevating mechanism portion 20ML of the central column portion 18. This also occurs in the lifting mechanism 20L of the left column 19. That is, the first blocking bar 11 to the fourth blocking bar 14 start to rise in conjunction with each other.

FIG. 9 is a front view internal structure diagram of the right column 17 in the fully opened state as viewed from the station platform side. FIG. 10 is an internal structural view of the left side view. FIG. 11 is an internal structure diagram of the same right side view.
In the fully opened state, the first blocking bar 11 to the fourth blocking bar 14 reach the highest position, and the first blocking bar 11 and the second blocking bar 12, and the third blocking bar 13 and the fourth blocking bar 14 are the most Proximity. Two left and right openings are opened widely between the three support columns (see FIG. 1 (3)), and the passenger can pass under the first blocking bar 11 to the fourth blocking bar 14 without lowering their heads. Thus, the control board 90 stops the power unit 40 and activates the brake.
The fully open state is detected by detecting the positions of the first blocking bar 11 to the fourth blocking bar 14 (for example, reaching the fully opened / fully closed position), or the positions of the moving pulley 24 and the linear motion unit 22. Or by detecting the rotation angle of the drive pulley 61, a sensor corresponding to the detection method may be appropriately disposed.

  When returning from the fully open state to the fully closed state, the control board 90 may operate the power unit 40 to rotate the drive pulley 61 in the reverse direction (counterclockwise in FIG. 10).

  Focusing on the movement amounts L1 and L2 (which may be read as speed) of the first blocking bar 11 and the second blocking bar 12 in the process from the fully closed state to the fully opened state, that is, in the process in which the two blocking bars rise. The moving amount L2 of the second blocking bar 12 is the same as the winding amount of the belt 26. On the other hand, if the moving pulley 24 is regarded as a moving pulley, the moving amount L1 of the first blocking bar 11 is half of the winding amount of the belt 26 according to the principle of the moving pulley. That is, the first blocking bar 11 and the second blocking bar 12 are interlocked with a speed ratio of “0.5: 1”. The same can be said for the movement amounts of the third blocking bar 13 and the fourth blocking bar 14.

  Each blocker starts to rise all at once. Therefore, the passenger can notice the operation. At that time, if your hand or belongings are likely to be pinched, you will be able to take avoidance action. Even if the avoidance action cannot be performed immediately, the distance between the first blocking bar 11 and the second blocking bar 12 and the distance between the third blocking bar 13 and the fourth blocking bar 14 are both gradually increased and narrowed. Passenger's hand and baggage that were located between the blocking bars will be gradually lifted along with the blocking bars, and will naturally move away from the blocking bars. In the first place, the position where the adjacent blocking bars are close enough to sandwich the hand or baggage is the position where the blocking bar is sufficiently high, and the passenger's hand or baggage is not easily pinched. Therefore, the risk of the passenger's hand and belongings being caught is extremely low.

  As described above, according to the present embodiment, a plurality of blocking bars can be lifted and lowered in conjunction with a simple configuration using one power unit 40. Since the number of power units 40 mounted can be greatly reduced as compared with a conventional configuration in which a power source is mounted for each support column, a significant cost cut is expected. Of course, it also reduces weight. By reducing the total weight of the liftable platform fence 10, it is possible to reduce incidental work (for example, reinforcement work for a station platform) accompanying installation.

  Moreover, in the conventional structure, it was necessary to arrange a conventional home fence for each opening. For example, to provide two left and right openings adjacent to each other, a total of two conventional home fences had to be installed for each opening. However, in this embodiment, the request can be met by installing one home fence. Looking at the installation work of the home fence as a whole, the cost-cutting effect and weight-reducing effect are significant.

[Modification]
As described above, the embodiment to which the present invention is applied has been described. However, the embodiment of the present invention is not limited to the above example, and components can be added, changed, or omitted as appropriate.

  For example, in the above embodiment, the transmission pulley 63 and the endless belt 64 of the power unit 40 and the power transmission unit 60 are built in the right column unit 17, but instead of the right column unit 17, any other column unit is used. A built-in configuration can be adopted.

Also, the number of openings can be added as appropriate.
For example, FIG. 12 is an external top view showing a configuration example of an elevating platform fence 10B having three openings, that is, left and right and the center. The raising / lowering platform fence 10B of the said structure has a total of four support | pillar parts of the right support | pillar part 17, the 1st center support | pillar part 18a, the 2nd center support | pillar part 18b, and the left support | pillar part 19, and each support | pillar part. Two sets of upper and lower blocking bars are moved up and down between the parts (first blocking bar 11 to fifth blocking bar 15 and sixth blocking bar 16). The 1st center support | pillar part 18a and the 2nd center support | pillar part 18b have the structure similar to the center support | pillar part 18 of 1st Embodiment. The third connecting shaft 68 is passed from the second central supporting column portion 18b to the left supporting column portion 19, one end of the third connecting shaft 68 is connected to the second connecting shaft 65 via the second universal shaft joint 67, and the left supporting column Power can be transmitted to the lifting mechanism portion 20L of the portion 19.
Of course, four or more openings may be provided.

  In the above-described embodiment, the universal shaft joint is used as the joint portion that links the connecting shafts in the power transmission unit 60, but other components can be substituted. For example, as shown in FIG. 13, the universal shaft coupling 66 can be replaced with a flexible shaft 69 (flexible connector).

  In addition, an additional blocking part may be provided as appropriate between the first blocking bar 11 and the second blocking bar 12. For example, a cloth-like body or a net-like body may be bridged between two blocking bars. In the fully closed state, the cloth or net spreads up and down between the upper and lower blocking bars, and a sign (printing, cutout characters, etc.) appears as “Dangerous. Since the interval between the shield bars is shortened, it is preferable that the cloth-like body or the net-like body is folded so that the sign cannot be seen. Furthermore, it is known that at least one of the first blocking bar 11 and the second blocking bar 12 automatically winds the cloth-like body or net-like body using the biasing force of the spring in the process of reaching the fully closed state. It is preferable to provide a winding mechanism.

DESCRIPTION OF SYMBOLS 10 ... Elevating type home fence 11 ... 1st blocking bar 12 ... 2nd blocking bar 13 ... 3rd blocking bar 14 ... 4th blocking bar 17 ... Right support | pillar part 18 ...・ Center support column 19 ... Left support column 20 ... Elevating mechanism unit 20L ... Elevating mechanism unit 20ML ... Left elevating mechanism unit 20MR ... Right elevating mechanism unit 21 ... Fixed pulley 22 ... -Linear motion part 23 ... Guide rail 24 ... Moving pulley 25 ... Belt fixing tool 26 ... Belt 27 ... Connection tool 40 ... Power part 60 ... Power transmission part 61 ... Drive pulley 62: first connecting shaft 63: transmission pulley 64 ... endless belt 65 ... second connecting shaft 66 ... universal shaft joint 67 ... second universal shaft joint 68 ..Third connecting shaft 69 ... Flexible shaft 90 ... Control board

Claims (5)

A cable body is driven by rotating the pulley, and a plurality of support columns having built-in lifting mechanisms that move the blocking unit up and down by the driven cable structure are provided. An elevating platform fence that opens and closes up and down,
A power unit that supplies power for rotating the pulley of the elevating mechanism unit is incorporated in any of the plurality of support columns,
A connecting shaft that transmits the power of the power unit that is passed between a column unit that incorporates the power unit (hereinafter referred to as “built-in column unit”) and a column unit that does not include the power unit (hereinafter referred to as “non-built-in column unit”). A power transmission unit having,
Equipped with a,
The pulley is a fixed pulley that rotates together with the connecting shaft,
The elevating mechanism part has a movable pulley that can move up and down in the column part in which the elevating mechanism part is incorporated,
One end side of the cord-like body is fixed in the support column that houses the lifting mechanism, the other end side is guided to the fixed pulley, and the movable pulley is suspended between the one end side and the other end side. ,
The blocking unit includes a first blocking unit connected to the moving pulley.
Home fence. The connecting shaft is passed between the support columns at a predetermined position higher than the blocking portion in the fully open state.
The home fence according to claim 1. The power transmission unit is
The connecting shaft passed between the built-in support column and the non-built-in support column adjacent to the built-in support column,
The connecting shaft passed between adjacent non-built-in struts;
A joint part that links the adjacent connecting shafts together;
Having
The home fence according to claim 1 or 2. The blocking part has a second blocking part below the first blocking part,
The first blocking portion is configured to move up and down together with the moving pulley via a linear motion portion slidably supported in the up and down direction within the support column,
The second blocking portion is a portion of the cord-like body that moves in the same direction as the linear motion portion, and is connected to a portion at a predetermined height position between the first blocking portion and the moving pulley. Being
The home fence as described in any one of Claims 1-3 . The power unit is installed at a lower part of the built-in support column,
The rotating shaft of the power unit and the connecting shaft are connected so as to rotate together with an endless belt,
The home fence as described in any one of Claims 1-4 .

Images