JPS6029599Y2 - Fence door opening/closing mechanism - Google Patents

Description

[Detailed description of the invention] For fences, especially pasture fences and racetrack fences, it is necessary to provide relatively wide entrances for cattle and horses to enter and exit. Conventionally, for example, a removable bolt was used as shown in Figure 1a. A horizontal member A, or a swinging member B shaped like a railroad crossing circuit breaker as shown in Figure 1.
B (sometimes only one rocking member on one side spans the entire width of the doorway), or a movable shelf C that can be opened laterally like a door is pivoted as shown in Figure 2. However, with the type shown in Figure 1 a and b, opening and closing operations for entry and exit are troublesome and take time and effort, so the type shown in Figure 2 In addition to taking up too much space to open and close, it also takes a lot of man-hours to install.
All of them had practical defects in that they were susceptible to deformation and damage.

This invention eliminates all the defects and inconveniences seen in the above-mentioned conventional examples, and also proposes an opening/closing mechanism for the entrance/exit of a fence that is aesthetically pleasing. Since the structural members can be used as they are and constructed in a form that is attached to them, material costs can be reduced.

Next, this invention will be explained according to the illustrated embodiment.

In FIGS. 3 and 4, a gate-shaped bracket 2 made of, for example, an aluminum alloy is attached to one shelf member 1 facing the entrance of an existing fence by means of bolting or the like. A plurality of rollers 3 are rotatably supported through shafts 4 at intervals within this bracket 2, which is preferably larger than the width of the entrance/exit. For example, a movable fence 5 made of a hollow aluminum alloy material is mounted on the bracket 2 so that it can be inserted into and removed from the bracket 2 at will.

A pin constituting a stopper 6 for regulating the end of the retracting movement of the movable fence 5 with respect to the bracket 2 is attached to the bracket 2 through the shelf member 1 as shown in FIG. The handle 7 attached to the side surface of the tip of the movable fence 5 is guided along a guide groove 8 provided in the bracket 2 along the direction of reciprocating movement of the movable fence 5, so that the handle 7 can be removed from the guide groove 8. Since the guide groove 8 is protruded in the opposite direction, the handle 7 can also be used as a stopper by abutting the handle 7 against the end of the guide groove 8.

On the other fence member 9 facing the entrance/exit of the fence, a gate-shaped receiver 11 having an opening 10 for receiving the tip of the movable fence 5 is installed, for example, for bolting to the shelf material 9. Mounted in any form.

The receiver is also provided with pin stoppers 12 in the same way as the stopper 6, and in order to reduce the impact when the movable fence body 5 hits these stoppers 6 and 12 at the end of its movement, the movable It is desirable to attach shock absorbers 13 made of an elastic material such as rubber to both ends of the fence body 5 (
(See Figure 7).

When closing the entrance/exit of the fence, it is sufficient to hold the handle 7 and move the movable fence body 5 toward the opening 10 in the member 11 as shown in FIG. Since transfer information is provided by 4, the movement is extremely easy.

In order to open the entrance/exit, contrary to what has been described above, it is sufficient to hold the handle 7 and move the movable fence 5 in the direction of pulling it into the bracket 2.

According to this invention, as described above, the opening and closing of the entrance and exit of the fence can be done with extremely little labor and lightness, and the structure can be made compact without taking up much space, and moreover, it can be easily attached to the existing fence. It is possible to do this without damaging the design, the rollers are protected, it is difficult to break down, and processing and assembly are easy, so this greatly contributes to reducing manufacturing costs.

[Brief explanation of the drawing]

Figures 1a and b are perspective views showing two conventional examples, Figure 2 is a perspective view showing another conventional example, Figure 3 is an elevational view of one embodiment of this invention, and Figure 4. 3 is an enlarged sectional view taken along the line ■-■ in FIG. 3, FIG. 5 is a perspective view of a main part, FIG. 6 is an enlarged sectional view of a portion, and FIG. 7 is an enlarged sectional view of another portion. In the figure, 1...one fence member, 2...
...Bracket, 3...Tara, 4...
...Axis, 5...Movable fence body, 6...Stopper, 7...Handle, 8...Guide groove, 9
......Other fence member, 10...Opening, 1
1...Bake is material, 12...Stopper, 1
3... It is a buffer body.

Claims (1)

[Claims for Utility Model Registration] 1. A gate-shaped bracket is attached to the shelf member on one side facing the entrance/exit of the fence, and a plurality of rollers are rotatably supported within this bracket at a distance from each other. A movable fence body is placed on the bracket so as to be inserted into and removed from the bracket while being guided by these rollers, and the tip of the movable fence body is received when the movable fence body is projected into the other shelf member facing the entrance/exit of the fence. The gate-shaped bridge that can be used is made of wood and serves as a closing mechanism for the entrance and exit of the fence. 2. The bracket and the receiver are provided with a stopper within the material for regulating the end of the retraction and thrusting movements of the movable fence body.
An opening/closing mechanism for an entrance/exit of a fence as set forth in claim 1 of the utility model registration.