JP2888414B2 - Fence entrance / exit mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing mechanism of a fence entrance / exit which can be used as a temporary safety fence at a pasture fence, a racecourse fence, an event hall, etc., a security fence at a building entrance / exit, and a simple gate. The present invention relates to a fence opening / closing mechanism which is suitable as a fence or a racetrack fence and which improves safety and the like.

[0002]

2. Description of the Related Art A fence, particularly a fence or a racecourse fence, requires a relatively wide entrance for cattle and horses to enter and exit. Although a movable fence that opens and closes in a horizontal manner and a movable fence that opens and closes horizontally in the form of a door have been used, there have been problems in that opening and closing operations are troublesome and require a large operation area.

[0003] In order to solve the above-mentioned problems, the present applicant has formed fence members on both sides of the fence entrance and exit as hollow cylinders, and formed a cutout on the lower surface of one fence member. A movable fence that can be telescopically inserted into the fence member is supported by a roller that partially protrudes into the fence member through the cutout portion, and the movable fence member is mounted on the other fence member. (Japanese Utility Model Publication No. 61-480). According to this opening / closing mechanism, since the movable fence body is guided and supported by the roller, it is possible to obtain an effect that the opening / closing operation can be easily performed with one hand.

[0004]

However, in the opening / closing mechanism, since the bracket for mounting the roller is exposed outside the fence member, the design is low, and a horse or the like collides. When doing so, there is a risk of injury. In addition, since the cutout is formed in the fence member, the strength of the cutout is weak, and it is difficult to say that the durability is sufficient.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an opening / closing mechanism for an entrance / exit of a fence, which can improve safety, design, and durability.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, the fence members on both sides of the entrance and exit of the fence are formed as hollow cylinders, and a movable fence is provided in the fence member on one side. The movable fence body is inserted into the fence member on one side to open the doorway, and the tip of the movable fence body protrudes into the opening of the fence member on the other side to close the doorway. In the opening / closing mechanism for the entrance / exit of the fence, a guide rail portion is provided in a fence member on the side where the movable fence body is inserted, and is supported at least at a rear end portion of the movable fence body so as to be mounted on the guide rail portion. Characterized by being provided with wheels for moving.

According to a second aspect of the present invention, in the first aspect of the present invention, a stopper is provided in each of the two fence members for restricting the end of the retraction and retraction movement of the movable fence body. I do.

Further, the invention according to a third aspect is characterized in that, in the invention according to the first aspect, a plurality of movable fences that are stepped or arranged side by side are connected by a connecting member.

[0009]

According to the first aspect of the present invention, the guide rail portion is provided in the fence member on the side where the movable fence body is inserted,
Since the movable fence body is provided at least at the rear end with wheels that support the movable fence body and move on the guide rail part, the movable fence body can be easily opened and closed with a light force by holding the front end side of the movable fence body. It becomes possible and operability is improved. Particularly, since the structure is such that the wheels move at least on the rear end portion of the movable fence member and move on the guide rail portion in the fence member, unlike the conventional opening / closing mechanism, members or cutouts exposed to the outside of the fence member are provided. It is no longer necessary to provide the device, thereby improving the safety, the design, and the durability.

According to the second aspect of the present invention, since the stoppers for restricting the end of the movement of the movable fence and the intrusion of the movable fence are provided in the two fence members, the open / close position of the movable fence can be reliably determined. It can be regulated, and there is no possibility that the movable fence body enters the inner part of the fence member.

According to the third aspect of the invention, a plurality of movable fences that are stepped or arranged side by side can be opened and closed by one operation, so that more convenience is added.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a fence used as a pasture fence or the like. The fence 1 has a column 2 disposed at appropriate intervals along the longitudinal direction thereof, and a fence member laterally mounted on the column 2. 3 mainly. The strut 2 of this embodiment is formed in a pipe shape from, for example, an aluminum alloy, and has a lower end vertically buried in the ground as shown in FIG. It is formed to bend in the direction. Further, the fence member 3 is attached in a two-stage configuration to an upper end portion of the support column 2 and a substantially middle portion in the height direction.

More specifically, the fence member 3 is formed as a hollow cylinder (pipe) made of, for example, an aluminum alloy. In order to attach the fence member 3 to the upper end of the column 2, as shown in FIG. At the upper end of the column 2, a vertical tubular portion 4a of a T-shaped tubular joint member 4 is attached with screws or the like, and the fence member 3 is inserted into the horizontal tubular portion 4b of the joint member 4 with screws or the like. Fixed.

The fence members 3 may be sequentially added in the longitudinal direction via the joint members 4.
Further, in order to attach the fence member 3 to the middle part of the support 2, as shown in FIG. 4, the fence member 3 is provided with left and right support pieces 5 sandwiching the support, and both support pieces 5 are bolts 6 and nuts. At 7 it is attached to the column 2.

An entrance 8 is provided at a predetermined location of the fence 1 as shown in FIG. The entrance 8 is formed by not providing the fence member 3 between the adjacent columns 2. As a mechanism for opening and closing the entrance 8, a movable fence 9 is inserted into the fence 3 a on one side (the left side in FIG. 1) of the entrance 8, and the movable fence 9 is connected to the fence on one side. The entrance 8 is opened by being drawn into and accommodated in the inside 3a, and the front end of the movable fence body 9 is caused to protrude into the opening 10 at the end of the fence member 3b on the other side (the right side in FIG. 1). It is configured to close.

In order to smoothly open and close the movable fence body 9, a guide rail portion 11 is provided in the fence member 3a on the side where the movable fence body 9 is inserted, as shown in FIG. A wheel 12 that moves on the guide rail 11 is attached to the rear end of the movable fence 9.

As shown in FIG. 6, the guide rail portion 11 is integrally formed along the longitudinal direction on the lower surface of the inner wall of the fence member 3a, and a reinforcing bulge portion 11a is provided at a substantially middle portion in the height direction. Is formed, for example, by extrusion.
It is sufficient that the guide rail portion 11 is formed at least within the movable range of the movable fence member 9 in the fence member 3a, but may be formed over the entire length of all the fence members 3. The movable fence body 9 is formed, for example, of an aluminum alloy into a pipe shape having an outer diameter smaller than the inner diameter of the fence member 3a, and is formed longer than the width of the entrance 8 such as about 1 to 8 m. In addition, the movable fence body 9
A groove 13 for avoiding interference with the guide rail 11 is formed along the longitudinal direction on the lower surface of the device, and is manufactured by, for example, extrusion.

In order to mount the wheel 12 on the rear end of the movable fence 9, a pair of left and right support pieces 15 are provided at the rear end of the movable fence 9 via an end plate 14, as shown in FIG. Provided,
Wheels 12 made of, for example, a synthetic resin door roller are rotatably mounted between the two support pieces 15 via an axle 16.

FIG. 5 shows a front end of the movable fence body 9.
As shown in FIG. 7, a buffer 17 made of an elastic material such as rubber is provided.
A groove 18 for avoiding interference with the guide rail 11 is also formed on the lower surface of the buffer 17 similarly to the movable fence 9. The buffer body 17 is attached by fitting the base side into the distal end of the movable fence body 9 and tightening a screw from the outside to the contact plate 19 applied to the inner wall of the hollow portion. In addition, although the groove | channel part 18 is provided in the buffer 17 provided in the front-end | tip part of the said movable fence body 9, this groove part 18 does not necessarily need to be provided.

On the other hand, a stopper 20 for regulating the end of the retraction movement of the movable fence 9 is provided inside the fence member 3a on the side where the movable fence 9 is inserted. As shown in FIG. 8, the stopper 20 is constituted by a pin provided through the fence member 3a in the diameter direction. Also, a stopper 21 similar to the stopper 20 for regulating the end of the movement of the movable fence 9 into which the distal end of the movable fence 9 enters is also provided inside the fence member 3b on the side where the distal end of the movable fence 9 enters. (See FIG. 1).

In the opening / closing mechanism for the entrance / exit of the fence configured as described above, the fence member 3 on the side where the movable fence body 9 is inserted.
a guide rail 11 is provided in the movable fence body 9.
Since the rear end of the movable rail 9 is provided with wheels 12 that support it and move on the guide rail 11, the movable fence 9 can be easily opened and closed with a light force by holding the front end side thereof. Operability is improved. In particular, since the wheels 12 support at least the rear end of the movable fence member 9 and move on the guide rails 11 in the fence member 3a, unlike the conventional opening / closing mechanism, the wheels 12 are exposed to the fence member 3a. There is no need to provide a member that performs Therefore, even if a horse or the like collides with the fence member 3a, there is no risk of injury, and safety can be improved and design can be improved. Further, since it is not necessary to provide a cutout portion in the fence member 3a, the strength is high and the durability can be improved.

Further, since the wheel 12 provided at the rear end of the movable fence body 9 is guided and moved by the guide rail portion 11 provided in the fence member 3a as described above, it is always stable. Smooth operability can be maintained. Further, since the groove 13 is formed on the lower surface of the movable fence 9 to avoid interference with the guide rail 11, smooth operation of the movable fence 9 can be ensured. The outside diameter of the movable fence 9 can be made sufficiently large within the range of the inner diameter, and the movable fence 9 can be prevented from rotating around its axis. Furthermore, since the stoppers 20 and 21 are provided in the fence members 3a and 3b for restricting the end of the movement of the movable fence body 9 into and out, the open / close position of the movable fence body 9 is surely regulated. Therefore, there is no danger that the movable fence body 9 will enter deep inside the fence members 3a and 3b, and that the rear end of the movable fence body 9 will fall out of the fence member 3a.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and there are design changes and the like that do not depart from the gist of the present invention. Is also included in the present invention. For example, in the above embodiment, the wheels 12 are provided only at the rear end of the movable fence 9, but as shown in FIG. 9, the wheels 12 are provided at the rear end and the middle of the movable fence 9, respectively. It may be. In this case, it is preferable that the wheel 12 provided in the intermediate portion is provided at a position that does not go outside from the inside of the fence member 3a when the movable fence body 9 is closed. In the above embodiment, the upper and lower movable fences 3 are configured independently of each other. However, as shown in FIG. .
Thus, the upper and lower movable fences 3 can be simultaneously opened and closed.

In the above embodiment, the movable fence 9 and the fence member 3a for accommodating the movable fence 9 are formed in a circular cross section as a preferred embodiment as a fence, but the movable fence 9 and the fence member 3a are shown in FIG. As described above, the cross-sectional shape may be circular on both sides and flat on the upper and lower sides, or may be a cross-sectional shape such as an ellipse, an ellipse, a quadrangle, or a polygon depending on the application. The above pillar 2
As shown in FIGS. 12 (a) and 12 (b), a cylindrical joint member 23 is attached to a column with bolts 24 or the like, and the fence member 3 is mounted in the joint member 23 as shown in FIGS. The member 3 may be fitted and fixed with screws or the like. In the above embodiment, the fence member 3 has a two-stage configuration in the vertical direction, but may have a one-stage configuration or a configuration having three or more stages. The support column 2 may be a straight column instead of a curved column having a curved upper portion. Further, as shown in FIG. 13, the support 2 is branched right and left at the upper end, and the cylindrical portions 25a are provided at both ends.
The barrier member 3 may be attached in parallel via a branch joint member 25 having Further, an appropriate combination of these may be used.

[0026]

As is apparent from the above description, the following effects can be obtained by the opening / closing mechanism of the fence according to the present invention.

(1) According to the first aspect of the present invention, a guide rail is provided in the fence member on the side where the movable fence is inserted, and the guide rail is supported at least at the rear end of the movable fence. Because the wheels that move on the guide rails are provided, the movable fence body can be easily opened and closed with a light force by holding the front end side of the movable fence body. Since it is a structure that supports at least the rear end of the body and moves on the guide rail portion inside the fence member, unlike the conventional opening and closing mechanism, there is no need to provide a member or notch exposed to the outside on the fence member, Safety, design and durability can be improved.

(2) According to the second aspect of the present invention, in addition to the above-mentioned effects, a stopper is provided in both of the fence members for regulating the end of the retracting and rushing movement of the movable fence body. The open / close position of the movable fence body can be reliably regulated, and there is no possibility that the movable fence body will enter the inner part of the fence member.

(3) According to the third aspect of the invention, in addition to the effect of the above-mentioned invention, a plurality of movable fences can be operated by one operation, and the opening and closing operation can be performed more easily. be able to.

[Brief description of the drawings]

FIG. 1 is a front view of a fence showing an embodiment of the present invention.

FIG. 2 is a side view showing a pillar of a fence.

FIG. 3 is a front view showing an attachment structure of an upper fence member to a support.

FIG. 4 is a partial cross-sectional plan view showing a mounting structure of a lower fence member to a support.

FIG. 5 is a partial sectional side view of a movable fence inserted into the fence member.

FIG. 6 is a sectional view taken along line AA of FIG. 5;

FIG. 7 is a sectional view taken along line BB of FIG. 5;

FIG. 8 is a cross-sectional view showing a stopper provided on the fence member.

FIG. 9 is a side view of a movable fence showing another embodiment of the present invention.

FIG. 10 is a side view showing a modification in which upper and lower movable fences are connected.

FIG. 11 is a cross-sectional view showing a modification in which the cross-sectional shapes of the fence member and the movable fence body are changed.

12A and 12B are diagrams showing a modification of the mounting structure of the lower fence member to the support, where FIG. 12A is a side view and FIG. 12B is a front view.

FIG. 13 is a side view showing a modified example of a column.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fence 3a, 3b Fence member 8 Doorway 9 Movable fence body 10 Opening 11 Guide rail part 12 Wheel 20, 21 Stopper 22 Connecting member

Claims (3)

(57) [Claims] A fence member on both sides of an entrance of a fence is formed as a hollow cylinder, a movable fence body is inserted into one fence member, and the movable fence body is drawn into one side fence member. In the opening / closing mechanism of the fence in which the entrance is opened and the front end of the movable fence is made to protrude into the opening of the fence member on the other side so as to close the entrance, An opening / closing mechanism for an entrance / exit of a fence, comprising: a guide rail portion provided in a fence member; and a wheel that supports the movable fence body and moves on the guide rail portion at least at a rear end thereof. 2. An opening / closing mechanism for an entrance / exit of a fence according to claim 1, wherein a stopper is provided in each of said fence members for restricting the end of the movement of the movable fence body in and out. 3. An opening / closing mechanism for an entrance / exit of a fence according to claim 1, wherein a plurality of movable fences provided stepwise or side by side are connected by a connection member.