JP2013035315A - Passage blocking bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passage blocking bar having high visibility and coherency and properly kept in rigidity while the passage blocking bar is made of a rod-shaped body hard to receive wind pressure.SOLUTION: The passage blocking bar 50 which is made of a solid or hollow rod-shaped member, is held at one end 50a or both ends 50a and 50d and is used to open/close a crossing road 4, is formed into repeatedly bent shapes on a plane, looks like a straight object when viewed along the plane, and looks like a meandering object when viewed toward the plane. In a blocking state for closing the crossing road 4, downward opening widths U and V become narrower than a baby carriage and narrower than a shoulder width of a child, a height HL at an extremely small portion becomes lower than the baby carriage when a backrest is leaned backward and becomes lower than a height through which a child can easily pass, and heights of a reversing bend 50b and a reversing bend 50c which become maximum are made to alternately repeat high and low.

Description

  The present invention relates to a traffic blocking bar that is composed of a rod-like member and is used to open and close passages, passageways, and other passages in order to allow or prevent passage of a moving body such as a person or a vehicle. In addition to showing physical and mechanical stopping power at the time of blocking traffic, the traffic blocking bar also exerts a psychological blocking effect at the time of blocking traffic by appealing to visual and tactile sensations.

  The swing-type railroad crossing barrier 10 whose front view is shown in FIG. 6 (a) is a straight-line one-stage type, and only one straight barrier bar 12 is cantilevered by the swing-type holding member 11. It is held in a state (see, for example, Patent Document 1). Then, by rotating the swinging holding member 11 bi-directionally by about 90 ° to swing the blocking bar 12, the blocking bar 12 is brought into a vertical state in the open state B that allows passage of the railroad crossing 4. Although the railroad crossing 4 is opened, in the interception state A where it is desired to prevent passage of the railroad crossing 4, the railroad crossing 4 is closed with the barrier 12 being in a horizontal state. In this blocking state A, the height H of the blocking bar 12 from the railroad crossing 4 is 0.8 m.

  The swing-type rail crossing breaker 20 whose front view is shown in FIG. 6 (b) is of a straight two-stage type, and has two straight barriers with a swing-type holding member 21 that also serves as a connecting member. Both 22 and 23 are held in a cantilever state. Then, like the above-described railroad crossing barrier 10, the barrier rods 22 and 23 are swung to take the cutoff state A or the open state B. The blocking bar 22 on the lower side in the blocking state A has a height H of 0.8 m from the railroad crossing 4 like the blocking bar 12 described above, but the blocking bar 23 on the upper side in the blocking state A is It is about 1 m away from the blocking bar 22 and parallel to the blocking bar 22. The blocking bar 23 is for increasing the visibility in the blocking state A, and plays a role of increasing the visibility from a high driver seat of a large automobile in particular.

  The home door device 30 whose front view is shown in FIG. 6 (c) is also a straight two-stage type and is equipped with two straight blocking rods 33 and 34. It is a liftable type, and the blocking rods 33 and 34 are held at both ends. The platform door device 30 is divided into left and right sides of the entrance / exit passage at the edge of the platform 6 to open and close the entrance / exit passage between the partition walls 8 installed on the edge of the platform 6. There are provided two struts 31, 31 erected at the end, and a pair of elevating holding members 32, 32 that are housed in the struts 31, 31 and are simultaneously raised and lowered. Both ends of the blocking rods 33 and 34 are held by the liftable holding members 32 and 32 and are lifted and lowered simultaneously in a horizontal and parallel posture. In the blocking state A, the blocking rods 33 and 34 are lowered to near the upper surface of the platform 6, and the open state B Then, it rises to a position higher than the door of the vehicle. The gap G between the upper blocking bar 33 and the lower blocking bar 34 is less than 1 m.

JP 2005-112151 A

As the passage blocking member that opens and closes the passage and the entrance and exit, doors and doors made of plate-like bodies are the most common, but the plate-like shape is easily affected by wind pressure, so it becomes heavy if it is constructed to withstand it This leads to an increase in the size and cost of the drive mechanism.
On the other hand, in an application field where the use of such a member is inconvenient, a passage blocking bar made of a rod-like body instead of a plate-like body is used as a passage blocking member that opens and closes a passage of a moving body.

In other words, the passage blocking bar is a rod-shaped body, so that it is less affected by wind pressure and is relatively lightweight, but it can be moved by driving through the holding end. It is necessary to have the properties of a rigid body suitable for
Also, depending on the application purpose, there are things that should be stiffened as much as possible and should be absolutely blocked at the time of traffic blockage, flexible or soft that can be deformed by force to break through in an emergency or emergency In some cases, it is desirable to have a rigidity having moderate properties.

  Conventionally, as described above, a straight bar-like body has been used as a traffic blocking bar having such characteristics. A straight passage blocking bar is a hollow bamboo material that can be rocked in a cantilevered manner and can be bent to some extent by human power in an emergency, etc., or a solid hard material that does not easily deform Made from etc. In addition, straight traffic blocking bars used for level crossing fences, etc. are conspicuous in alternating colors of black and yellow to increase visibility, which is a source of psychological blocking effect It is also done.

However, in the case of a straight passage blocking bar, it is difficult to improve the visibility to a level comparable to a plate-like body by providing only one or two bars. In addition, the front end of a baby carriage whose backrest has been tilted down because of the wide clearance (however, not a box type, but a so-called stroller that can be tilted deeply to fit the baby's sleeping posture; the same applies hereinafter) Jumps over the passage blocking bar, and the child may be able to get through the passage blocking bar relatively easily by bending slightly, so that the interference due to contact does not reach the plate-like body. However, if a large number of passage blocking bars are densely arranged to improve visibility and interference, costs such as material costs and management costs may be higher than those of the plate-like body.
Therefore, it is a technical problem to realize a passage blocking bar that is made of a rod-like body that is not easily subjected to wind pressure, yet has high visibility and interference, and has a moderate rigidity.

  The traffic blocking bar of the present invention (Solution means 1) was devised to solve such a problem, and is composed of a solid or hollow bar-shaped member and is held at one end or both ends, and the moving body In a traffic blocking bar used for opening and closing a traffic location, it has a shape that is repeatedly bent on one plane and looks straight when viewed along the plane, but it looks like a serpentine shape when viewed toward the plane. It is characterized by being visible.

  Further, the traffic blocking bar of the present invention is (the solution means 2), which is the traffic blocking bar of the above solution means 1, and the lateral width of the opening which is placed in the blocking state where the passage portion is closed and which faces downward is the baby carriage. It is characterized by being 0.2 m or less, which is narrower and narrower than a child's shoulder width.

  Further, the passage blocking bar of the present invention (Solution means 3) is the passage blocking bar of the above solution means 1 and 2, and the height of the portion that is minimized by being placed in the blocking state where the passage portion is closed is However, it is characterized in that the height is 0.4 m or less, which is lower than the baby carriage with the backrest defeated, and which is a height at which the child cannot easily dive.

  Further, the traffic blocking bar of the present invention (Solution means 4) is the traffic blocking bar of Solution means 1 to 3 described above, and the heights of the parts that are maximized by being placed in a blocking state where the passing part is closed are alternately set. In addition, it is characterized by repeating high and low.

In such a passage blocking bar of the present invention (Solution 1), even a rod-like body has a shape that is repeatedly bent on one plane, and is straight like a flat plate when viewed along the plane. Although it looks like a flat object, it looks like a meandering object when viewed from the plane, and reaches various places in the occupied area of the flat plate. Therefore, both visibility and interference are increased to those close to that of the flat plate. In particular, since the pattern appears to change at the bent portion, the vertical portion can be seen from each direction at the time of blocking, and thus visibility is often higher than that of the flat plate.
Moreover, by meandering, it is easy to cause elongation deformation and bending deformation like a spring, and it is easy to ensure sufficient flexibility and flexibility, but easily by changing the thickness Since the rigidity can be increased, it is easy to secure the necessary rigidity.
Therefore, according to the present invention, it is possible to realize a passage blocking bar that is made of a rod-like body that is not easily subjected to wind pressure, and that has high visibility and interference, and that is moderately rigid.

  Further, in the traffic blocking bar of the present invention (Solution means 2 and 3), the horizontal width of the downward opening facing downward at the time of blocking is narrowed, and the height of the lower part coming down at the time of blocking is reduced. Thus, the visibility and interference of the lower part at the time of blocking can be increased, and the occurrence of a situation in which the baby carriage or the child passes unconsciously can be prevented in advance.

  Furthermore, in the passage blocking bar of the present invention (Solution means 4), the portion coming up at the time of blocking is made uneven so that the visibility from a high place is further enhanced.

Example 1 of the present invention shows the structure and usage of a traffic blocking bar, (a) is a plan view and a front view of the traffic blocking bar of the present invention, (b) is a book instead of a straight single-stage blocking bar. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a closed state of a swinging level crossing barrier equipped with a traffic blocking bar of the invention, and FIG. 3C is a front view showing an open state of the level crossing barrier. It is a front view which shows the closed state of the rocking | fluctuation type level crossing barrier which mounted the passage blocking bar of this invention about Example 2 of this invention instead of the straight 2 stage | paragraph interruption | blocking rod. It is a front view of the raising / lowering type platform door apparatus which mounted the passage | blocking blocking bar of this invention instead of the direct two-stage | paragraph interruption | blocking rod about Example 3 of this invention. Example 4 of the present invention shows an elevating type platform door device equipped with the passage blocking bar of the present invention and improved in the column part, etc., (a) is a plan view, and (b) is a front view seen from the platform side. FIG. 4C is a left side view, FIG. 4D is a perspective view of the left column portion viewed from the right front side, and FIG. 4E is a right side view of the platform door device. It is the perspective view which looked at the raising / lowering platform door apparatus which concerns on Example 4 of this invention from the platform side. Fig. 2 shows a conventional traffic blocking bar, (a) is a front view of a swinging level crossing barrier equipped with a straight-line one-stage blocking bar, and (b) is a swinging type mounted with a straight-line two-stage blocking bar. A front view of a level crossing breaker, (c) is a front view of an elevating type platform door device equipped with a straight two-stage breaker.

About the traffic blocking bar of this invention, the specific form for implementing this is demonstrated by the following Examples 1-4. The embodiment 1 shown in FIG. 1 is a realization of the above-described solving means 1 to 4 (claims 1 to 4 at the beginning of the application). The embodiment 2 shown in FIG. The illustrated embodiment 3 and the embodiment 4 shown in FIGS. 4 to 5 are modifications thereof.
In these drawings, for the sake of simplification, a fastener such as a bolt, a drive source such as an electric motor, a transmission member such as a timing belt, an electric circuit such as a motor driver, and an electronic circuit such as a controller are illustrated. In the figure, the elements necessary for explaining the invention and the related ones are mainly illustrated. In addition, since the same reference numerals are given to the same components as those in the prior art in the illustration, the repeated description will be omitted, and the following description will focus on differences from the prior art.

  A specific configuration of the traffic blocking bar according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1A is a plan view and a front view of the traffic blocking bar 50.

  Although it is not impossible to make the passage blocking bar 50 in a desired meandering state directly by press molding or the like, it is more practical to make a straight bar-shaped member that is mass-produced and easily available. Is. The rod-shaped member used as the material is a hollow, round tube like a kite that allows rainwater collected by eaves to flow to the ground, and is made of thermoplastics with excellent weather resistance, such as polyvinyl chloride. It is easy to process and has a long life. For bending, an existing bender used for plastic piping work etc. may be used, and the part to be bent is heated while sending compressed air into the hollow of the tube to prevent the bent part from becoming flat. And done.

  Although the outer diameter of the traffic blocking bar 50 is smaller than that of the blocking bar 12 in view of weight saving when the road blocking bar 50 is mounted on the level crossing barrier 10 instead of the road bar 12, the crossing barrier 10 is illustrated. It may be thicker than the blocking bar 12 as long as it can be swung. However, only one end portion 50a attached to the swinging holding member 11 of the railroad crossing barrier 10 has the same thickness as the barrier rod 12 for compatibility, and is thick or solid for ensuring strength. Except for the one end 50a, most of the passage blocking bar 50 is composed of a light and uniform tube everywhere, and is repeatedly bent on one virtual plane. When viewed along the virtual plane, that is, when viewed from a direction parallel to the virtual plane, it looks straight (see the plan view of FIG. 1A), but when viewed toward the virtual plane, it is virtual. When viewed from the direction passing through the plane, it looks like a meandering object (see the front view of FIG. 1A).

  Of the many inverted bent portions of the passage blocking bar 50, the lower inverted bent portion has substantially the same height and the lower virtual envelope is substantially straight, but when the upper portion is viewed, the inverted bent portion 50b Since the direction is slightly higher than the inverted bent portion 50c by about 0.1 m, for example, the upper virtual envelope becomes uneven. When the upper vertices of the inverted bent portion 50b and the inverted bent portion 50c are placed in a blocking state in which the passage is closed, that is, when the passage blocking bar 50 is turned sideways on the railroad crossing 4 (FIG. 1A). (See the front view of FIG. 5 and (b)), each of which is a portion that becomes a maximum, and therefore, the passage blocking bar 50 is such that the height of the portion that becomes a maximum repeats the height alternately.

  Further, the downward opening below the inverted bent portion 50b and the downward opening below the inverted bent portion 50c (see the front view of FIG. 1 (a)) are placed in a blocking state where the passage is closed, that is, the passage blocking bar. When 50 is turned sideways on the railroad crossing 4 (see FIG. 1 (b)), both of the openings are downwards, but the width U of the downward opening below the inverted bent part 50b is also the inverted bent part. The width V of the downward opening below 50c is also about 0.2 m, which is narrower than the width of the small baby carriage 0.28 m and narrower than the width of the narrow child's shoulder 0.25 m.

Further, as described above, the lower inverted bent portion of the passage blocking bar 50 has substantially the same height, and the lower virtual envelope is substantially straight. Is placed in a blocking state that closes the passage portion, that is, when the passage blocking bar 50 is turned sideways on the railroad crossing 4 (see FIG. 1B), it is a portion that becomes minimal. The heights HL of these minimum parts are both 0.4 m, which is lower than the height 0.45 m of the front of the lower baby carriage whose backrest has been tilted, and can be easily penetrated by children. It is lower than that.
Further, the bending amplitude W, which is the difference between the lowest minimum portion and the highest maximum portion, is about 0.8 m (see the front view of FIG. 1A).

  The use mode and operation of the traffic blocking bar 50 according to the first embodiment will be described with reference to the drawings. 1 (b) and 1 (c) are front views of a swinging level crossing barrier 10 equipped with a passage blocking bar 50 of the present invention in place of a straight-line one-stage blocking rod 12, and FIG. The closed state is shown, and (c) shows the open state.

  In order to attach the traffic blocking bar 50 to the level crossing barrier 10 instead of the blocking bar 12, the swing holding member 11 may hold the one end 50a of the traffic blocking bar 50 in the same manner as the one end of the blocking bar 12. However, in this case, the swinging holding member 11 is swung to the blocking side in advance, and the mounting position of the passage blocking bar 50 is adjusted so that the inverted bent portion 50b and the inverted bent portion 50c are set to the upper side. Is fixed (see FIG. 1B). Then, the lower limit setting of the swinging range of the swinging holding member 11 is adjusted so that the minimum part height HL is set to 0.4 m.

Then, since the passage blocking bar 50 is bent up and down with the bending amplitude W of 0.8 m described above, the maximum height HH is 1.2 m.
Thus, in the blocking state (see FIG. 1 (b)), the passing blocking bar 50 meanders through the airspace from the minimum part height HL to the maximum height HH above the railroad crossing 4, and the railroad crossing 4 is fenced. Partitioned by a formula.
And since not only children with low eyes but also adults with high eyes will see the traffic blocking bar 50 in front of them, the visibility will be increased compared to the conventional case where the straight blocking rod 12 was used, and the psychological blocking effect at the time of traffic blocking will be enhanced. .

In addition, since the downward opening widths U and V are narrow (see the front view of FIG. 1 (a)) and the minimal part height HL is low (see FIG. 1 (b)), the backrest as well as the adult has been tilted. Even a baby carriage or a small child can not be scraped through without touching the passage blocking bar 50 in a normal comfortable posture, so the physical / mechanical at the time of blocking the passage than before using the straight blocking bar 12 The stopping power increases.
Nonetheless, the passage blocking bar 50 has greatly increased stretchability in the longitudinal direction (left and right in FIGS. 1 (a) and 1 (b)) and is easily deformed torsion, so that the absolute blocking force is rather suppressed. because in that, if you want to really break through for such emergency emergency evacuation, entrust a strong push or body by hand if or multiplied by the body weight, can pass through.

  The passage blocking bar 50 having such moderate flexibility / softness is also rigid enough to swing with a cantilever support, and is the weight not much different from that of the blocking rod 12? Since it is lighter than that and can be swung by the driving force of the crossing barrier 10, the swinging holding member 11 is rotated about 90 ° (see FIG. 1 (c)). ), Going above the railroad crossing barrier 10 and opening above the railroad crossing 4 to allow people and vehicles to pass through the railroad crossing 4.

  A specific configuration of the traffic blocking bar according to the second embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a front view of the swing-type crossing barrier 20 equipped with the passage blocking bar 50 of the present invention instead of the straight two-stage blocking rods 22 and 23, and shows a closed state.

  The passage blocking bar 50 is different from that of the first embodiment described above in that the bending amplitude W is expanded from 0.8 m to 1.4 m, and accordingly the maximum height HH is increased to 1.8 m. Is a point. As the bending amplitude W is increased, a single passage blocking bar 50 covers a wider area than the two conventional parallel blocking bars 22 and 23 described above, and a crossing instead of the blocking bars 22 and 23. It is attached to the swing type holding member 21 of the circuit breaker 20. Then, when attaching the passage blocking bar 50 to the railroad crossing barrier 20, the one end portion 50 a of the passage blocking bar 50 is held by the holding portion of the lower blocking bar 22 in the swing holding member 21, and the swing holding member 21. A holding auxiliary tool 51 is attached to the holding portion of the upper blocking bar 23 and the middle of the passage blocking bar 50 is supported by the holding auxiliary tool 51.

  When such a passage blocking bar 50 is placed in a blocking state where the passage is closed, that is, when the passage blocking bar 50 is turned sideways on the railroad crossing 4 (see FIG. 2), it is comparable to the blocking bar 23 that was on the upper side. The inverted bent portion 50b and the inverted bent portion 50c that come to the upper side at the height to be bent are easy to be noticed, and the heights of the upper bent vertex 50b and the inverted bent portion 50c that are maximized are alternately alternated. Because it repeats high and low and becomes even more visible, it looks good even when viewed from a high position such as the driver's seat of a large car and immediately notices it. A detailed description that will be repeated is omitted, but high coherence and appropriate rigidity are the same as described above.

A specific configuration of the traffic blocking bar according to the third embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a front view of an elevating type platform door apparatus 30 equipped with the passage blocking bar 50 of the present invention instead of the straight two-stage type blocking bar 33, 34, and shows a state in the middle of the lifting.
The passage blocking bar 50 is different from those of the first and second embodiments described above in that not only the one end portion 50a but also the other end portion 50d has a shape suitable for the holding portion of the liftable holding member 32 for holding both ends. It is a point.

  A single passage blocking bar 50 covers a wider range than the conventional two parallel blocking rods 33 and 34 described above, and the raising / lowering holding member 32 of the platform door device 30 replaces the blocking rods 33 and 34. When the passage blocking bar 50 is attached to the platform door device 30, one end 50a of the passage blocking bar 50 or the like is attached to the holding portion of the lower blocking bar 34 in the liftable holding member 32. An end 50d is held, and a holding auxiliary tool 51 is attached to the holding portion of the upper blocking bar 33 in the liftable holding member 32, and the holding auxiliary tool 51 supports the passage blocking bar 50 in the middle. This is the same as in the second embodiment.

  Such a passage blocking bar 50 is held at both ends 50a and 50d by the lifting / lowering holding member 32 and keeps a horizontal posture on the platform 6, and is lifted / lowered as the lifting / lowering holding member 32 is lifted / lowered. However, when it descends to just above the platform 6, the passage portion located between the left and right support columns 31 on the upper surface of the platform 6 is closed and placed in a blocked state. Since the rigidity and the coherence are high and the rigidity is moderately maintained and the flexibility and flexibility are increased, the function of the platform door device 30 is improved.

A specific configuration of the traffic blocking bar according to the fourth embodiment of the present invention will be described with reference to the drawings. FIG. 4 shows an elevating type home door device 60 in which the passage blocking bar 50 of the present invention is mounted as a door and the supporting column and the like are improved. FIG. 4A is a plan view, and FIG. 4B is a front view from the home side. FIG. 4C is a left side view, FIG. 4D is a perspective view of the left frame 62 viewed from the right front side, and FIG. 4E is a right side view of the platform door device 60.
FIG. 5 is an external perspective view of the platform door device 60 viewed from the platform side.

  The passage blocking bar 50 is different from those of the first to third embodiments described above in that it is not used alone but is combined with the blocking bar 61. The blocking bar 61 is a straight round bar, but it may be a square bar, a solid bar, or a hollow bar. Moreover, although it is connected with the passage blocking bar 50 at multiple points, the connection is divided by dividing the passage blocking bar 50 into a number of U-shaped members and fastening the ends of the individual U-shaped members by fastening or welding. It may be joined, or a number of holes may be drilled in a single rod body, and the end of the U-shaped member may be fitted into each hole. The rod 50 may be sandwiched and then fixed by fastening or the like. In short, the straight blocking rod 61 and the ninety-nine-folded passage blocking rod 50 are integrated while repeatedly intersecting so-called rod-shaped door 50 + 61. It only has to be configured.

  In such a rod door 50 + 61 formed of a combined body of the passage blocking bar 50 and the blocking bar 61, the left end is held by the elevating member 66 and the right end is held by the elevating member 67. Is held horizontally between the frame 62 and the frame 63 which is the right support column, and opens and closes the passage at the time of getting on and off between the frames 62 and 63. The passage blocking bar 50 has the downward opening widths U and V of 0.2 m as in the above example, the bending amplitude W that is the distance between the minimum portion and the maximum maximum portion is 1.2 m, and the minimum portion. And the center X of the shield 61 is 0.6 to 0.7 m, the distance Y between the minimal part and the non-maximum maximal part is 1.0 m, and the height HL of the minimal part is 0 when fully lowered. .05 to 0.1 m.

  Each of the left and right frames 62 and 63 is made of a hollow member and is erected on the platform, and is straight and vertical from the lower part to the middle part, but the upper part is gently curved toward the track side. The elevating members 66 and 67 are accommodated in the hollows of the frames 62 and 63, respectively, and the elevating members 66 and 67 are driven by the driving members 64 and 66, respectively, so that the bar door 50 + 61 is raised and lowered. ing. Since the elevating members 66 and 67 are in the shape of a rectangular parallelepiped, and the posture is restricted by the frames 62 and 63, the bar doors 50 + 61 are vertically lowered when they are lowered to close the passage when getting on and off, but are lifted. When the alighting passage is opened, it tilts toward the top of the vehicle door. Further, since the elevating members 66 and 67 have a rectangular parallelepiped shape, even if the passenger gets on the bar door 50 + 61 by hand or presses the body against the bar door 50 + 61, the bar door 50 + 61 is undesired. There is no worry of rotating.

  The frames 62 and 63 are large so that the end portions of the bar doors 50 + 61 move from the lower end to the upper end, and the upper curved portions expose the heads of the elevating members 66 and 67. Notches 62a and 63a are formed. Correspondingly, the lower and lower members 66 and 67 have their lower ends tapered and tapered at their lower ends, so that when descending, the curved portions at the upper portions of the frames 62 and 63 are changed to straight portions at the intermediate portions. Even when moving, it can be smoothly lowered.

[Others]
In the above embodiment, the passage blocking bar 50 is made of a round tube, that is, a round hollow rod member. However, the passage blocking bar 50 may be made of a hollow rod member having a square cross section, and is a solid rod member. It may consist of. Further, when the passage blocking bar 50 is applied to a home door, even if the passage block is closed by the passage blocking bar 50, an emergency passage or evacuation site can be secured separately from the passage portion. Since it may be more convenient that the rigidity of 50 is high, the passage blocking bar 50 may be made of metal or thickened at that time.

  In the second and third embodiments, when the passage blocking bar 50 is held by the swingable holding member 21 or when the passage blocking bar 50 is held by the elevating type holding member 32, the one end portion 50 a is placed on the lower side. However, the present invention is not limited to this, but the one end 50a is on the upper side, and the holding auxiliary tool 51 is disposed on the lower side of the one end 50a. You may do it.

  The traffic blocking bar of the present invention includes a blocking rod that is attached to a railroad crossing barrier and opens and closes a railroad crossing road, and a barrier rod that is mounted on a platform door device on a platform and opens and closes a passage when entering and exiting a train. The present invention is not limited to the railway field, and can be applied to various passages and opening / closing members such as an opening / closing member for an entrance / exit of a parking lot and an opening / closing member for an ETC toll gate.

4 ... Railroad crossing, 6 ... Platform (passage when getting on and off), 8 ... Partition wall,
DESCRIPTION OF SYMBOLS 10 ... Railroad crossing barrier, 11 ... Swing type holding member, 12 ... Barrier
20 ... Railroad crossing barrier, 21 ... Oscillating holding member, 22, 23 ... Barrier,
30 ... Home door device, 31 ... Stand part, 32 ... Elevating type holding member, 33,34 ... Interrupting rod,
50 ... Traffic blocking bar,
50a ... One end, 50b, 50c ... Inverted bent portion, 50d ... Other end, 51 ... Holding aid,
60 ... Home door device,
61: Blocking cage, 62, 63 ... Frame (support)
62a, 63a ... notch, 64, 65 ... drive member, 66, 67 ... elevating member

Claims (4)

  In a passage blocking bar made of a solid or hollow rod-shaped member and used for opening and closing a passage of a moving body with one end or both ends being held, the shape is repeatedly bent on one plane, A traffic blocking bar, which looks straight when viewed along, but looks like a serpentine object when viewed toward the plane.   The lateral width of the downward opening that is placed in a blocking state that closes the passage portion is 0.2 m or less, which is narrower than the baby carriage and narrower than the shoulder width of the child. 1. The traffic blocking bar according to 1.   The height of the portion that is minimized by being placed in a blocking state that closes the passage portion is lower than 0.4 m, which is lower than the baby carriage that has collapsed the backrest and that the child cannot easily dive through. The passage blocking bar according to claim 1 or 2, wherein the passage blocking bar is provided.   The passage according to any one of claims 1 to 3, wherein the height of the portion that is maximized when the passage is closed is alternately repeated. Blocking bar.

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