JPH11336376A - Opening/closing fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing fence which has a structure applicable to a wide frontage and is operated simply by stretching a blockade rope between stanchions, by pulling down the stanchions by a weight in opening to be stored in a storage groove, and by erecting the stanchions by a winch in cutting off. SOLUTION: A support member 3 of C-shaped cross section having a storage groove 5 opened upward is buried in the ground, a plurality of stanchions 1 are pivoted to support shafts 4 provided in the groove bottom at prescribed intervals, and a blockade rope 2 is stretched between the stanchions 1. A winch 7 with a drive source is provided in the left end of the support member 3 and a rope 8 is connected to the top part of the left-end stanchion 1. A rope 9 is connected to the tip part of the right-end stanchion 1 and a weight 10 is connected to the other end via a sheave. In an opened state, the stanchion 1 is pulled down by the weight of the weight 10 to be stored in the storage groove 5 along with the blockade rope 2. In a cutoff state, the rope 8 is wound up by the winch 7 so as to erect the stanchion 1 and cut off the passing by the blockade rope 2. It has a simple structure without using a cantilever rod so as to be applicable to a wide frontage, can be opened/closed by a simple operation, and can be easily installed and removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to various types of vehicles such as temporary crossing barriers for construction, gates for various construction sites, gates for opening and closing parking lots, protection fences for train platforms, and fences for preventing vehicles from entering vehicles in parks and condominiums. The present invention relates to an open / close fence applicable to a fence that blocks human intrusion.

[0002]

2. Description of the Related Art A temporary crossing breaker for construction uses a blocking rod system similar to a general railroad crossing breaker, in which a crossing bar supporting one side is vertically and horizontally rocked to block a railroad crossing. This structure allows railroad crossings to be opened by swinging from horizontal to vertical.

[0003] In the above-mentioned shut-off system of the shut-off rod type,
In addition to the problem that it takes a lot of trouble and time for installation and removal, if the frontage of the railroad crossing is as large as tens of mails (the limit length of the blocking pole is 8 m), the cantilever blocking rod may bend, and If there is an existing obstacle, there is a disadvantage that it cannot be installed.

[0004] Further, in the case of a vehicle or fence-preventing fence of a park or condominium constructed by connecting a chain between the tops of columns that can be raised and lowered, it is necessary to dig a hole in which the column can be buried or to fix it with concrete. There are drawbacks in that not only is it troublesome to install, but also every time the fence is opened and closed, the operation of lifting and lowering each column is forced. Especially if there is a key at the bottom of the column to prevent the fence from opening and closing freely,
Opening and closing operations are even more troublesome.

The present invention has been made in view of the above points, and an object of the present invention is to provide the following openable fence. Opening and closing fence that is easy to install and remove. An open / close fence that can be easily opened and closed. Low-cost open / close fence. Opening / closing fence that can be opened and closed at high speed. Opening / closing fence with excellent response in case of power failure or failure.

[0006]

The invention according to claim 1 is
In an opening / closing fence that blocks and opens a passage, a plurality of pillars that can be raised and lowered at predetermined intervals, a blocking rope connected between the pillars, and a pillar that raises all pillars vertically and lays them horizontally. An opening / closing fence characterized by comprising a falling means. According to a second aspect of the present invention, in the opening / closing fence according to the first aspect, a lower portion of each of the columns is pivotably supported on a groove bottom of a support member having an accommodation groove capable of accommodating the columns. It is an open / close fence that is a feature. Claim 3
In the opening and closing fence according to claim 1 or 2, the rope is connected to one of the outermost supports so that the rope can be pulled and extended, and the weight is connected to the other outermost support via the rope. The open / close fence is characterized in that it is connected, and all the columns are vertically raised by pulling the rope, and all the columns are tilted horizontally by the weight of the weight. According to a fourth aspect of the present invention, there is provided the open / close fence according to any one of the first to third aspects, wherein both ends of the link are connected to an intermediate portion of each support by pins.

[0007]

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<A> Configuration of the open / close fence FIGS. 1 to 4 show an example of the open / close fence. The opening / closing fence is provided with a plurality of pillars 1 which are arranged to be able to fall at predetermined intervals, a blocking rope 2 connected between the pillars 1, and a means for raising and lowering all the pillars 1 vertically or horizontally. And Hereinafter, details of each unit will be described.

<B> Support The support 1 is a member for extending the shielding rope 2 horizontally, and the lower part thereof is rotatably supported by a support shaft 4 at the bottom of the groove of the support member 3 as shown in FIG. The support member 3 is formed of a steel material or the like and has a C-shaped cross section, and has an accommodation groove 5 whose upper part is open over the entire length thereof. The support member 3 is buried in the ground 6. The opening width of the accommodation groove 5 is set to a dimension that can accommodate and store the column 1. At the free end of the column 1, a blocking rope 2 such as a rope material or a chain of various materials can be connected 3.

<C> Inverting Means In FIG. 1, a winch 7 with a drive source is installed at the left end of the support member 3. The middle of the rope 8 extending from the winch 7 is engaged with a plurality of pulleys, and the end thereof is connected to the upper part of the left column 1. By the operation of winding the rope 8 by the winch 7, the entire column group 1 can be pulled up in the vertical direction and can be raised.

Further, a separate rope 9 is provided above the right column 1.
Is connected to the other end of the rope 9 and the weight 10
Is connected. The middle of the rope 9 is engaged with a plurality of pulleys, and the weight of the weight 10 is transmitted to the upper part of the right end column 1 through the rope 9, and always acts as a force in the direction of horizontally tilting all the columns 1. . Normally, the column is horizontally inclined due to the weight of the weight 10. The above-mentioned means for raising and lowering the column 1 is merely an example, and it is a matter of course that other known traction means can be adopted.

[0012]

Next, the operation of the open / close fence will be described.

<A> Assembling of the open fence The support 1 is assembled in advance in a factory or the like, and the support member 3 having a length that can be transported is carried into the site, and the support member 3 is welded or bolted at the site to a predetermined position. Length. Install this on site. Then, the blocking rope 2 is connected between the columns 1, and the ropes 8, 9 are connected to the outermost columns 1, 1 via a shackle or the like. Since the open / close fence according to the present invention does not use a cantilever type rod, the total length of the fence is not restricted.

<B> Opening FIGS. 3 and 4 show the opening of the open / close fence. At this time, the winch 7 is in a non-operating state, and all the columns 1 are horizontal due to the weight of the right weight 10. All the columns 1 and the blocking ropes 2 are hidden in the accommodation grooves 5 so as not to obstruct the passage of vehicles and people.

<C> When shutting off When the winch 7 is operated to start winding the rope 8, this winding force is transmitted to the shutting rope 2 and the right rope 9, and all the columns 1 are lifted while the weight 10 floats. Rotates around the support shaft 4 and is exposed together with the blocking rope 2 from the housing groove 5. Further, the winding of the rope 8 is continued, and all the columns 1 are erected vertically. A blocking rope 2 connected between the free ends of the columns 1 standing upright is stretched horizontally to prevent traffic of vehicles and people.

[0016]

[Embodiment 2] As shown in FIG. 1, a moving pulley is hung in the middle of a left rope 8 and an auxiliary weight 11 is provided on the moving pulley, and a right rope 9 and a right support 1 are provided. Is configured to be separable with a shackle or the like, the entire rope 1 can be raised vertically by the weight of only the auxiliary weight 11 by separating the right rope 9 from the right pole 1. This example has an advantage that, when a power failure or any trouble occurs in the winch 7, the opening / closing fence can be manually shut off regardless of the winch 7.

[0017]

Third Embodiment FIGS. 5 and 6 show an embodiment in which the column 1 is held in a vertical state. In this example, a pair of support brackets 12, 12 for pivotally supporting the lower part of the column 1, and a connecting plate 1 below the column 1 inserted between the support brackets 12, 12
Concave portion 14 and convex portion 1 that can be fitted to a part of the opposing surfaces of
5 are provided. When the column 1 is positioned horizontally, the concave portion 14 and the convex portion 15 do not fit, allowing free rotation of the column 1, and when the column 1 reaches vertical, the concave portion 14
And the convex portion 15 are fitted so that the vertical state of the column 1 can be maintained. The number of the concave portions 14 and the convex portions 15 is not particularly limited.

[0018]

[Embodiment 4] When the opening width is wide, each column 1
When a link plate (not shown) is connected with a pin between the intermediate parts of
Since the lifting force of each column 1 can be transmitted via the link, the operation of raising and lowering each column 1 can be performed smoothly and reliably.

[0019]

[Fifth Embodiment] In the above-described embodiment, the case where the column 1 is attached to the support member 3 has been described. However, the column 1 may be directly attached to an existing installation surface.

[0020]

According to the present invention, the following effects can be obtained. <B> Installation and removal at the site are easy. <B> By simply raising and lowering the columns at the same time, it is possible to shut off and open the passage space, making opening and closing operations easy. <C> Since the structure and movement are simple, there are few failures and the cost can be reduced. <D> Since the tilting force applied to some of the columns can be transmitted to all the columns through the blocking rope, the passage opening / closing operation can be performed at a high speed. <E> In the event of a power outage or breakdown, the pillar can be manually moved up and down.

[Brief description of the drawings]

FIG. 1 is a side view of an opening / closing fence according to Embodiment 1 of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a side view of the open / close fence when the fence is opened.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is an explanatory view according to a third embodiment of the present invention, and is an enlarged view of a pivot portion of a column.

6 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 support 2 blocking rope 3 support member 4 support shaft 5 accommodation groove 6 ground 7 winch 8,9 rope 10 weight 11 auxiliary weight 12,12 support bracket 14 recess 15 protrusion

Claims (4)

[Claims] Claims: 1. An open / close fence for blocking and opening a passage, comprising: a plurality of pillars arranged so as to be able to fall at predetermined intervals; a breaking rope connected between the pillars; And an opening / closing fence characterized by comprising a means for raising and lowering horizontally. 2. The open / close fence according to claim 1, wherein a lower portion of each of the columns is pivotally supported on a bottom of a support member having an accommodation groove capable of accommodating the columns. ,
Opening fence. 3. The opening / closing fence according to claim 1, wherein a rope is connected to one of the outermost struts so as to be pulled and extended, and a weight is connected to the other outermost strut via the rope. An open / close fence, wherein all the columns are vertically raised by pulling the rope, and the columns are horizontally tilted by the weight of the weight. 4. The open / close fence according to claim 1, wherein both ends of the link are connected to an intermediate portion of each support by pins.