JPH06133661A - Opening and closing mechanism for outlet gate of stall - Google Patents

Abstract

PURPOSE:To dispense with a locking mechanism and to enable the installation of a gate door at a low-ceiled place by using a link mechanism to enable the opening and closure of a casement door by the sliding motion of a linear guide and inhibit the opening of the door even by simply pushing the door. CONSTITUTION:Casement doors 9a, 9b are installed at the outlet part of a stall 4 partitioned with a combination of vertical pipes and horizontal pipes 2. The link mechanism of the outlet part is constructed of a rail pipe 6, a linear guide 7 sliding on the pipe 6, a fixed link 14 connected to a rotary shaft 12 and a link 18. When the casement door is closed by pulling the linear guide toward the worker, the angle between the rail pipe and the link becomes an acute angle and the angle between the link and the fixed link becomes an obtuse angle to lock the door. The retreatment of cattle can be carried out simply by slightly raising the gate 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a stall for a milking parlor for milking cows so that the exit gate can be opened and closed smoothly, and even when it is closed, it is mechanically locked. The present invention relates to a mechanism for opening and closing the stall exit gate.

[0002]

In the conventional flat burn stall,
It is known that a gate is installed slidably up and down, the gate is connected to a rope, and the gate is connected to a counterweight via a pulley. In this method, since the gate and the counterweight are in an equilibrium state, the gate can be raised and lowered with a relatively small force. Then, in order to keep the gate raised or lowered, the rope was tied and locked.

[0003]

However, in such a conventional stall, since the rope is tensioned for balancing, the weight is gradually extended due to the weight or the weight of the gate, and the rope is gradually unbalanced. is there. Further, since the gate is moved up and down, it is necessary to lift the gate considerably in order to leave the cow, which is not suitable for a cow house with a low ceiling. Therefore, the present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide an exit gate that can be used even in a place with a low ceiling and that can lock a door without binding a rope.

[0004]

That is, according to the present invention, in a stall divided by combining a vertical pipe, a horizontal pipe, and the like, a gannon door provided at an exit portion and a guannon door connected to open and close In a stall including a link mechanism, a track in which the link mechanism of the outlet portion extends toward the exit passage above the stall, a linear guide that slides on the track, a rotary shaft of the two gannon doors, and a gannon door And two fixed links vertically connected to the rotary shaft, and a link rotatably attached to the fixed link and the linear guide. The link and the fixed link pull the linear guide toward you. The opening and closing mechanism of the stall exit gate is adjusted so that the angle between the track and the link when the gate is closed is sharp and the angle between the fixed link and the link is obtuse. To achieve the purpose.

[0005]

In the exit gate according to the present invention, the double door is open when the linear guide is located on the passage side of the track, and the double door is closed when the linear guide is located on the stall side. Then, when the linear guide is moved from the passage side to the front, the link connected to the linear guide also moves,
The fixed link pivotally attached to the link starts rotating about the rotation axis and stops when it rotates 90 degrees. At this time, the included angle between the track and the link is acute, and the included angle with the fixed link is obtuse. As a result, even if a cow tries to open the gannon door by opening it, the linear guide tries to move in the passage direction because the connection position of the linear guide and the link is located before the connection position of the fixed link and the link. It will be locked. However, when the linear guide is moved in the passage direction, the link follows the movement of the linear guide, and as a result, the fixed link rotates in the passage direction.
Stop at 0 degrees.

[0006]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. FIG. 1 is a plan view of an apparatus according to the present invention, in which a plurality of stalls 4 are arranged in parallel while taking a working space 3 every other two by combining a vertical pipe 1 and a horizontal pipe 2. A pipe 5 is connected above the stall 4 in a direction that divides the stall 4 into two parts. On the pipe 5, an orbital pipe 6 having one tip extending from the outlet of the stall 4 to the passage side is connected. A linear guide 7 is fitted in the reference numeral 6. A pipe 8 for inserting a rope, which is arranged so that one end thereof is located in front of the outlet of the stall 4, is connected further above the orbit pipe 6 and the orbit pipe 6 and the pipe 8.
As shown in FIGS. 1 and 2, the inlet side is bent vertically in the horizontal direction and then in the vertical direction, and is positioned on the working space 3 side.

On the exit side of each stall 4, there is a double door 9
The a and 9b are rotatably supported, and the vertical pipe on the work space 4 side is rotatably supported by the vertical pipe on the working space 4 side at the inlet side of the stall. Is the kannon door 9
Fixed links 14, 1 perpendicular to a, 9b and rotating shafts 12, 12
4 is connected, and a handle 16 is connected to the root of the gate 10 installed on the side of the work space 3 perpendicularly to the gate and the horizontal pipe of the stall.

A linear guide 7 fitted in the orbital pipe 6
The links 18 and 18 longer than the fixed links 14 and 14 are axially attached to the end portions of the fixed links 14 and 14, respectively. 20 is a stopper attached to the tip of the track pipe 6 for preventing the linear guide 7 from coming off the track pipe 6,
A pulley 22 is installed at its tip. In the present embodiment, as shown in FIG. 1, when the gannon doors 9a and 9b are closed, the fixed links 14 and 14 and the link 18, so that the doors cannot be easily opened by pushing only the gannon doors 9a and 9b. The lengths of the links 18 and 18 are adjusted so that the angle formed by 18 is an obtuse angle (90 degrees or more) and the included angle between the track pipe 8 and the links 18 and 18 is an acute angle. The length of the links 18 and 18 should be about half the horizontal distance between the stalls.
The shorter the length of the fixed links 14 and 14, the shorter the stroke of the linear guide, but it may be determined in consideration of the torque for opening the gannon doors 9a and 9b. Further, the positional relationship of the track 8 on which the linear guide 7 slides is determined as follows. On the aisle side, the gannon doors 9a and 9b are just opened, and on the stall side, the gannon door is once closed. It is designed to be able to move further than (the angle between the fixed link and the link is 90 degrees).

In the above-mentioned structure, each orbital pipe 6
As shown in FIGS. 1, 2 and 4, ropes 24 and 25 are inserted into the pipe 8 and one end thereof is connected to the linear guide 7, and the other end thereof is a pipe on the inlet side of the stall 4. The rope 25 coming out of the pipes 6 and 8 and coming out of the pipe 8 is connected to the handle 16, and the rope 24 coming out of the pipe 6 is tied at an appropriate length.

The lengths of the ropes 24 and 25 are determined according to the following criteria. That is, the rope 24 is tensioned at the position of the handle when the gate 10 is closed and at the position of the linear guide 7 when the doors 9a and 9b of FIG. Is adjusted so that the end of is extended from the pipe 8 by the moving distance of the linear guide 7.

With the above-mentioned structure, the apparatus according to the present invention moves cows in and out as follows. Starting with the inlet closed and the outlet open, the handle 16 is pushed down to open the gate 10 to guide the cow into the stall 4. Then, the linear guide 7 is pulled toward the entrance side by the rope 25 connected to the tip of the handle 16, and the gannon door 9a, 9a,
9b is closed. Then, the cow is guided into the stall 4, and the handle 16 is further pushed up to perform milking with the gate 10 closed.

After the milking is completed, the rope 24 is pulled to guide the linear guide 7 to the passage side, and the doors 9a and 9b are opened by the action of the link mechanism. At this time, since the handle 16 has already been lifted, it does not move due to the tension of the rope 25. As described above, the worker can finish the opening / closing work of the entrance and exit of the stall by three operations of raising and lowering the handle and pulling the rope 24. Although the rope is used as the tension transmitting means in the present embodiment, it is not limited to this.
Anything that can transmit the movement of raising and lowering the handle to the linear guide may be used.

In this embodiment, the linear guide is fitted and inserted into the track pipe so that it slides. However, the present invention is not limited to this, and the track and the slide bearing mounted on the track are provided. You may use. Further, although the rope is used as the moving means of the linear guide in the present embodiment, it is not limited to this, and a rodless air cylinder may be used to reciprocate by supplying air.

[0014]

As described above, in the opening / closing mechanism of the exit gate according to the present invention, compared to the conventional one, the gannon door can be opened and closed by simply sliding the linear guide and can be opened by pushing only the door. Since the link mechanism is configured so that it cannot be locked, it is not necessary to provide the lock mechanism.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment according to the present invention.

FIG. 2 is a front view of an embodiment according to the present invention.

FIG. 3 is a rear view of the embodiment according to the present invention.

FIG. 4 is a side view of an embodiment according to the present invention.

[Explanation of symbols]

 1 vertical pipe 2 horizontal pipe 3 working space 4 stall 5 pipe 6 orbital pipe 7 linear guide 8 pipe for rope insertion 9a, 9b double door 10 gate 12 rotating shaft 14 fixed link 16 handle 18 link 20 stopper 22 pulley 24, 25 rope

Claims (1)

[Claims] 1. A stall divided by combining vertical pipes, horizontal pipes, etc., the stall consisting of a double door provided at an outlet and a link mechanism connected to open and close the double door. A track in which the link mechanism of the section extends toward the outlet passage above the stall,
A linear guide that slides on the track, two rotary links of the double doors and two fixed links that are perpendicular to the double doors and connected to the rotary shaft, and are rotatable with respect to the fixed links and the linear guides. When the linear guide is pulled toward you and the gannon is closed, the included angle between the track and the link is an acute angle and the included angle between the fixed link and the fixed link is an obtuse angle. The opening / closing mechanism of the exit gate in the stall, which is adjusted so that