JPH0224405A - Retaining apparatus for crossing gate - Google Patents

Abstract

PURPOSE:To permit an external force exerted on a crossing gate to escape by rotating motion thereof by mounting on a supporting post a cylindrical body composed of upper and lower cylindrical members having slant edges and fixing the lower cylindrical member on the supporting post while the upper cylindrical member equipped with the crossing gate is rotatably mounted thereon. CONSTITUTION:A cylindrical body being composed of upper and lower cylindrical members is rotatably mounted around a supporting post 1 on a road. The lower cylindrical member is formed as a retainer 6 for a crossing gate and has an upper slant edge which mates with a lower slant edge of the upper cylindrical member formed as a slidable member 7. The retainer 6 and the slidable member 7 are rotatably engaged relative to each other. The crossing gate 5 is fixedly retained by a fastening means on the outside portion of the slidable member 7 while the retainer 6 is fixed onto the supporting post 1. This construction allows the crossing gate 5 to be rotated together with the slibable member around the supporting post 1 upon collision of vehicles thereagainst so that a collision energy can be efficiently absorbed.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a holding device for a railroad crossing barrier or a barrier installed at a parking lot entrance.

<Prior art> Currently, there are various types of barriers installed at railroad crossings or parking lot entrances and exits, ranging from small to large.Most of them have an arm attached to the top of a column that opens and closes up and down to block the entry of vehicles, etc. is to be installed.

However, with this structure, there is a problem that a car may enter the barrier and catch the arm before the arm is fully opened, causing the arm to bend or the barrier itself to be damaged.

<The 5M's to be solved by the invention> The present invention solves the above-mentioned problems of the conventional art, is resistant to damage even when subjected to impact, and - even if the circuit breaker is turned in the other direction at times. It is an object of the present invention to provide a circuit breaker holding device that automatically returns to its original normal direction after that.

〈Means for solving problems〉 The above object of the present invention can be achieved by the following means.

In other words, the gist is that the upper end is cut obliquely by a belt-shaped or annular tensioning device that is tightened and fixed with fasteners such as bolts and nuts to a support that is erected at a railroad crossing or a parking lot entrance. A cylindrical split-shaped circuit breaker support member is attached, and a cylindrical split-shaped sliding member whose lower end is cut obliquely so as to be in close contact with the upper end of the breaker support member and is rotatable with respect to the column is provided. Attached loosely with the above-mentioned tensioning device,
A barrier holding device characterized in that a barrier is attached to the above-mentioned tensioning device, and a cylindrical shape or cylinder whose upper end is cut obliquely at the upper end of the lower support that is erected at railroad crossings, parking lot entrances, etc. A cylindrical or cylindrical upper column support member is attached to the lower end of the upper column, and a cylindrical or cylindrical upper column sliding member whose lower end is cut obliquely so as to be in close contact with the upper end surface of the upper column support member. In addition, the above-mentioned lower support,
Alternatively, a circuit breaker holding device in which a connecting cylindrical member is formed on the upper pillar side to loosely fit the upper pillar support member and the upper pillar sliding member, and a circuit breaker is attached to the upper pillar. Further, a coupling recess and a coupling protrusion are formed on the inclined surfaces of the upper column supporting member and the column sliding member so as to be fitted loosely into each other, and the upper column sliding member or , By providing a sliding part such as a bearing between the outer wall surface of the upper column sliding member and the inner wall surface of the cylindrical member [-1], it is possible to hold a large circuit breaker without any problem. It is something that can be done.

(Embodiments and Effects) The circuit breaker holding device according to the present invention will be described in detail below with reference to drawings showing embodiments thereof.

First, FIG. 1 is a perspective view of one embodiment of the present invention, in which (1) is a column, (2) is an annular fastener, and (3) is a Holt-Nand fastener. A circuit breaker (5) is attached to this tensioning tool (2) via a circuit breaker holding member (4). That is, as shown in FIG. 2, there is a divided circuit breaker support member (6) made of a material such as plastic and whose upper end is cut obliquely, and a diagonal surface of the circuit breaker support member (6). This figure shows a divided sliding member (7) whose lower end is cut obliquely so that they are in close contact with each other. and fasteners (3)
is installed by. The sliding member (7) has a diameter slightly larger than the diameter of the pillar (1) so that it can rotate freely relative to the pillar (1), and the breaker holding member (
4) is integrally fixed by a fastening tool (2) and a fastening tool (3). That is, the sliding member (
7) is rotatable with respect to the column (1), and is further equipped with a tensioning tool (
2) Due to the weight of the circuit breaker holding member (4), circuit breaker (5), etc., the sliding member (7) has a lower end surface formed in an oblique shape and an upper end surface of the circuit breaker support member (6). are kept in close contact with each other.

Because of this configuration, when the sliding member (7) is rotated approximately 90 degrees as shown in FIG. The circuit breaker support member (6) rotates while sliding against the end face, but immediately returns to its original position while sliding against the upper end face, and the upper end face is formed obliquely due to its own weight. Become.

That is, as shown in Fig. 4, the circuit breaker holding members (4), (4) are installed above and below the circuit breaker (5), and
4).

(4) Attach the auxiliary annular member (8) that is loosely fitted to the sliding member (7) and the column (1) using the tensioning tool (2) and the fastening tool (3).
When the circuit breaker (5) is rotated by an external force, the lower end surface of the sliding member (7) is attached by the weight of the circuit breaker (5) etc. to the circuit breaker support member ( 6) It slides against the upper end surface and then returns to its original position.

Note that the holding device having the above configuration is suitable for a relatively small-sized circuit breaker installed at an entrance/exit of a parking lot or the like.

Next, FIG. 5 is a perspective view showing another embodiment of the present invention, in which the upper end of the lower support column (1-1) has a cylindrical or cylindrical shape with the upper end cut obliquely. An upper strut (1-1) to which an upper strut support member (9) (in the example uses a cylindrical shape) is attached, and a circuit breaker (5) is further attached to the upper part.
'At the lower end, there is a cylindrical or cylindrical (cylindrical shape is used in this example) upper strut slide whose lower end is cut obliquely so as to be in close contact with the upper end surface of the upper strut support member (9). The moving member 00) is mounted, and the upper support is attached to either the lower support (1-1) or the upper support (1-1) (in this embodiment, the lower support (1-1)). A cylindrical member 01) that loosely fits around the support member (9) and the upper column sliding member 00) is attached.

That is, when the upper strut (1-1)' is rotated by an external force, the lower end surface of the upper strut sliding member 00) is rotated by the upper surface of the upper strut supporting member (9), as shown in FIG. The upper support (1-1) rotates while sliding against the
When the force acting on ' is in a no-load state, the upper strut (1-1) ' and the circuit breaker (5) attached to it slide again against the upper surface of the upper strut support member (9) due to their own weight. In this case, the cylindrical member OD connects the lower strut (1-1) and the upper strut (1-1)' while returning to the original position. This allows the force that sometimes occurs to be concentrated only to the force acting mutually between the upper column sliding member OI and the upper column supporting member (9), and at the same time, it also performs braking.

Furthermore, what is shown in FIG. 7 is that the upper column supporting member (9) and the upper column sliding member 0ω have a connecting protrusion 0 and a connecting recess 0'! J are loosely fitted to either side, so that when the upper column sliding member Ql rotates, its surfaces are separated from each other by the upper column supporting member (9). Even when the connecting convex part 021 and the connecting concave part surface
' When the upper column support member (9) and the upper column sliding member 00 are installed in It has a structure that is sufficiently durable.

Also, what is shown in FIG. 8 is a cylindrical member (sliding auxiliary member 04 such as a bearing attached to either the inner surface of 10 or the upper support support member (9) or the outer surface of the upper support column sliding member Gω), This structure is designed to minimize the sliding resistance that occurs when rotating or returning due to an external force, thereby increasing return efficiency.

Therefore, by reducing the sliding resistance, it becomes possible to minimize the force applied to the upper support column support member (9) and the cylindrical member (l) during rotation, and the connecting protrusion and In combination with the connecting recess, it is possible to create a holding device that can withstand even large-sized circuit breakers.

Note that the circuit breaker support member (6) used in the present invention, the sliding member (
7), Upper column support member (9) and upper column sliding member 0
The material of ω may be any material such as plastic, wood, or metal, but it can be selected depending on the purpose, such as plastic for small circuit breakers and metal with excellent strength for large circuit breakers. Furthermore, it is desirable to use a material that has as little sliding resistance as possible when returning from rotation.

<Effects of the Invention> As described above, according to the device of the present invention, even if an external force is applied to the arm of the circuit breaker due to contact with a vehicle, the circuit breaker itself can rotate to the left or right. Since the moving member or the upper column sliding member can rotate in the direction of the external force, external force can be absorbed and alleviated, and damage or breakage can be avoided simply by changing the direction of the arm of the circuit breaker. If the bending can be prevented, and the external force is removed, the self-weight of the circuit breaker will
By returning the sliding member or the upper column sliding member, the circuit breaker returns to its original correct direction and can maintain its function as a circuit breaker.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged explanatory view of the circuit breaker support member of the present invention, FIG. 3 is an explanatory view showing the operating state of the present invention, and FIG. FIG. 5 is a partially cutaway perspective view showing another embodiment of the invention; FIG.
The figure is an explanatory diagram showing the same working state, FIG. 7 is an explanatory diagram when the upper column support member and the upper column sliding member of the present invention are provided with connecting uneven parts, and FIG. 8 is the outer wall surface of the upper column support member. It is an explanatory view showing the case where an auxiliary member for sliding is provided in. In the figure, (1): Support column (2): Tension tool (3): Fastener (4): Circuit breaker holding member (5): Circuit breaker (6): Circuit breaker support member (crab sliding member (9) ) 8 Upper column support member OI: Upper column sliding member 01) Two-part member 07J: Connecting convex portion a3): Connecting recess (+4): Sliding auxiliary member

Claims (1)

[Scope of Claims] 1. The upper end is slanted by a belt-shaped or annular tensioning device that is tightened and fixed with fasteners such as bolts and nuts to a support that is erected at a railroad crossing or a parking lot entrance, etc. A divided cylindrical circuit breaker support member is attached to the circuit breaker support member, the lower end of which is cut obliquely so as to fit closely to the upper end of the circuit breaker support member, and the sliding member is rotatable relative to the pillar. A circuit breaker holding device characterized in that a movable member is loosely attached to the tensioning tool, and a circuit breaker is mounted to the tensioning tool. 2. A cylindrical or cylindrical upper support member with the upper end cut obliquely is attached to the upper end of the lower support support installed at a railroad crossing or a parking lot entrance, etc., and the above-mentioned upper support member is further attached to the lower end of the upper support. A cylindrical or cylindrical upper support sliding member whose lower end is obliquely cut so as to be in close contact with the upper end surface of the support member is attached, and the upper support support member is mounted on the lower support or upper support side. and a circuit breaker holding device, characterized in that a connecting cylindrical member is formed to loosely enclose the upper strut sliding member, and a circuit breaker is attached to the upper strut. 3. A connecting recess and a connecting convex part are formed on the slanted surfaces of the upper column supporting member and the upper column sliding member so as to be loosely fitted into each other, respectively. The circuit breaker holding device described. 4. Claim characterized in that a sliding member such as a bearing is provided between the outer wall surface of the upper column supporting member or the upper column sliding member and the inner wall surface of the cylindrical member. The circuit breaker holding device according to 2 or 3.