JP2011177132A - Liner plug for teat cup - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liner plug for a teat cup, which protects the teat cup not mounted on a teat not to be stained by the scattering of excreta or the like during milking, and to provide a method for using the same. <P>SOLUTION: The liner plug provided to close a fitting insertion port 22 for a teat 15, formed with the liner 21 of a teat cup 20 of a milking machine, includes: a projected part 31 which is inserted into the fitting insertion port 22 and fitted up; and a cover part 33 concentrically provided with the projected part 31 to cover and protect the edge end surface 23a and the outer peripheral surface 23b of a peripheral wall part 23 for forming the fitting insertion port 22. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liner plug provided so as to close an insertion opening for a teat formed by a liner of a teat cup of a milking machine.

In the case of a normal cow, the milking unit 10 has one milk claw 11 and four teat cups 20 corresponding to each quarter of the cow (see FIG. 5). By installing a cylindrical rubber liner in each teat cup shell, the inside of the teat cup is divided into a milk flow path inside the liner and an outside air chamber. A vacuum tube connected to the connection port on the side of the teat cup connects the air chamber to the pulsator. By alternately switching the connection destination of the vacuum pump that the pulsator communicates with the air chamber of the teat cup between the vacuum line and the atmospheric pressure at predetermined intervals, the rubber liner pulsates at a predetermined pulsation ratio and the calf's Provides mouth-like irritation to the nipple and encourages lactation.
About such a milking machine, this applicant has proposed the invention concerning the pulsation control system previously (refer patent document 1).

  An improved form of the teat cup liner has been previously proposed by the present applicant. According to the improved teat cup liner, it is composed of a tubular body made of an elastic material such as rubber having a trumpet-like insertion opening for inserting a nipple of a cow at one end and a connection opening to a milk claw at the other end. In the liner provided with a fitting groove for fitting the lower end portion of the teat cup shell on the outer periphery of the intermediate portion, the wall above the fitting groove of the liner has a double structure, and the double structure wall The space is partitioned (see Patent Document 2).

Normally, the teat 15 is inserted into each teat cup 20 in a one-to-one correspondence as shown in FIG.
On the other hand, for the teat 15a that is not milked for reasons such as blind milk or illness, the root part of the liner 21 of the teat cup 20 is folded and used as shown in FIG. However, with this method, it has been difficult to ensure airtightness in order to prevent air from entering and exiting.

For this reason, conventionally, a method has been adopted in which a liner plug as shown in FIG. 7 is fitted into the insertion slot for the nipple of the liner to close the insertion slot. In this liner plug, a protrusion 31 for insertion and insertion, a flange portion 34, and a protrusion 35 serving as a gripping portion for attaching and detaching work are provided on a portion opposite to the protrusion 31.
However, the teat cup that is not attached to the nipple is likely to become dirty due to the scattering of feces and urine during milking because the insertion opening of the liner approaches the ground side.

JP 2009-213425 A (first page, FIG. 1) Japanese Patent Laid-Open No. 09-121707 (first page, FIG. 1)

The problem to be solved regarding the liner plug for teat cups and how to use them is that teat cups that are not attached to the nipples will become dirty due to scattering of manure during milking, etc. It is to become easy.
Therefore, an object of the present invention is to provide a liner plug for a teat cup that can protect a teat cup that is not attached to a teat so that it is not contaminated by scattering of manure during milking, and a method of using the liner plug.

The present invention has the following configuration in order to achieve the above object.
According to one aspect of the liner plug for a teat cup according to the present invention, a liner plug for closing a teat fitting insertion port formed by a teat cup liner of a milking machine, the liner plug being inserted into the fitting insertion port. The cover part provided concentrically with the said convex part is provided so that the convex part to fit and the edge surface and outer peripheral surface of the surrounding wall part which form the said insertion opening may be covered and protected.

  Moreover, according to one form of the liner plug for a teat cup according to the present invention, a concave portion is provided on the opposite side of the portion where the convex portion is provided, and another piece including the convex portion is inserted into the concave portion. It can be characterized by being formed so as to fit.

  Moreover, according to one form of the usage method of the liner plug for teat cups concerning this invention, it inserts in the said insertion opening so that the insertion opening for teats formed by the liner of the teat cup of a milking machine may be plugged up And a concave portion is provided on the opposite side of the portion where the convex portion is provided, and the concave portion is formed so that another piece including the convex portion is inserted and fitted. A method for using a liner plug for a teat cup provided with a cover portion provided concentrically with the convex portion so as to cover and protect the edge surface and outer peripheral surface of the peripheral wall portion forming the fitting insertion opening, In the vertically installed state where the liner plug closes the insertion opening that opens below the teat cup that is suspended, the liner plug is used in one or a plurality of stages, and the lower end is slidably placed on the floor surface. use That.

  According to the liner plug for a teat cup and a method of using the teat cup according to the present invention, a particularly advantageous effect is obtained that a teat cup that is not attached to the teat can be protected from being contaminated by scattering of manure during milking.

It is a side view including a top view and a section showing a form example of a liner plug for a teat cup according to the present invention. It is a side view including the top view and section which show other forms of a liner plug. It is a side view which shows the usage method of the example of a form of FIG. It is sectional drawing which shows the insertion state of the liner plug in FIG. 3 in detail. It is a side view which shows the normal usage method of a milking unit. It is a side view which shows the conventional usage method of the milking unit in case there exists a teat which does not milk. It is a side view including the top view and cross section which show the conventional liner plug.

  Hereinafter, the example of the liner plug for teat cups concerning the present invention is explained in detail based on an accompanying drawing (Drawing 1-4). Fig.1 (a) is a top view which shows the form example of a liner plug, FIG.1 (b) is a side view including the cross section. This liner plug closes the insertion opening 22 for the teat 15 formed by the liner 21 of the teat cup 20 of the milking machine.

31 is a convex part, and is provided so that it may be inserted and fitted in the fitting insertion port 22 of the liner 21. The convex part 31 of this embodiment is formed in a columnar shape having a gently tapered tip at a tip so as to have a shape corresponding to a teat.
Reference numeral 33 denotes a cover portion, which is provided concentrically with the convex portion 31 so as to cover and protect the edge surface 23a and the outer peripheral surface 23b of the peripheral wall portion 23 forming the insertion opening 22 of the liner 21.
Reference numeral 35 denotes a protrusion, which is provided at a portion opposite to the convex portion 31 for insertion so as to be a grip portion for detachment work.

  In this cover portion 33, a cover wall 33 a for the edge surface that covers the edge surface 23 a of the liner 21 and a cover wall 33 b for the outer surface that covers the outer periphery 23 b of the liner 21 are formed continuously. Has been provided. The cover wall 33a for the edge surface is formed in a disk shape concentric with the axis of the convex portion 31, and its inner bottom surface is a stopper surface that abuts on the edge surface 23a of the liner 21 so as to restrict the insertion of the convex portion 31. ing. The outer peripheral surface cover wall 33b is formed in a cylindrical shape that rises from the edge of the edge surface cover wall 33a in the protruding direction of the convex portion 31. For example, the cover portion 33 can be formed of synthetic rubber integrally with the liner plug body.

  According to this cover part 33, since the surrounding wall part 23 which forms the insertion slot 22 of the liner 21 can be covered and protected appropriately, the peripheral wall part 23 and the insertion slot 22 of the liner 21 are contaminated by the excretion of manure during milking. Can be prevented. That is, the cover portion 33 is fitted into the opening end portion of the liner 21 so as to surround and cover the portion, and is a protective layer portion that can prevent contamination.

In the embodiment shown in FIG. 2, a concave portion 32 is provided on the opposite side of the portion where the convex portion 31 is provided, and the concave portion 32 is formed so that another piece including the convex portion 31 is inserted and fitted. FIG. 2A is a plan view showing another example of the liner plug, and FIG. 2B is a side view including a cross section thereof.
Thus, the height of the teat cup 20 supported by the liner plug 30 is obtained by forming the liner plug 30 used as a plug for closing the insertion opening 22 of the liner 21 into a block-type shape that can be connected vertically. Adjustment can be easily performed (see FIGS. 3 and 4).

Next, the usage method of the liner plug for the teat cup according to the embodiment shown in FIG. 2 will be described below with reference to FIGS.
According to the embodiment of FIG. 3, the liner plug 30 closes the insertion opening 22 that opens below the hanging teat cup 20, and the liner plug 30 is stacked in two stages so that the lower end 30a can slide on the floor surface 40. It is used in the vertical position placed in The lower end 30a of the liner plug 30 is provided with a recess 32, so that the contact area with the floor surface 40 is small. For this reason, the liner plug 30 can slide on the floor surface 40 suitably with the movement of the cow.
In addition, although the state where the liner plug 30 is stacked in two stages is shown in the embodiment of FIG. 3, the liner plug 30 can be used in a stack of three or more stages. Of course, when the teat cup 20 hangs down to a low position, it may be used in one stage.

Further, when the liner plugs 30 are stacked in a plurality of stages, at least the uppermost liner plug 30 may be formed in a shape that surrounds and protects the peripheral wall portion 23 of the liner 21. That is, the uppermost liner plug 30 only needs to include the cover portion 33.
According to this, the teat cup 20 that is not attached to the teat 15a is not soiled by scattering of manure and the like during milking, although the insertion opening 22 of the liner 21 approaches the ground side.
Even if the cow cow goes wild and kicks the liner 21 or the milk claw 11, the peripheral wall portion 23 of the liner 21 does not directly contact the ground even if the block type liner plug 30 falls apart, so that a sanitary state can be secured. .

And by making the liner plug 30 into a block shape that can be connected vertically, the liner 21 can be self-supporting in accordance with the height of each nipple. Therefore, the teat cup 20 that is not attached to the teat 15 is appropriately supported by the liner plug 30. As a result, it is not necessary to fold the liner 21 on the upper part of the milk claw 11, the balance of the milk claw 11 is stabilized, and problems such as liner slip can be prevented.
According to the liner plug 30 according to the present invention, when milking a cow with a teat 15a that is not milked for reasons such as blind milk or illness, it is preferably used as a plug that plugs the insertion opening 22 of the liner 21. Can do.

  As described above, the present invention has been described in various ways with preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. That is.

DESCRIPTION OF SYMBOLS 10 Milking unit 11 Milk claw 15 Teat 20 Teat cup 21 Liner 22 Insertion opening 23 Peripheral wall part 23a Edge end surface 23b Outer peripheral surface 30 Liner plug 30a Lower end 31 Convex part 32 Concave part 33 Cover part 40 Floor surface

Claims (3)

A liner plug provided so as to close the insertion opening for a teat formed by a liner of a teat cup of a milking machine,
A convex portion that is inserted and fitted into the fitting insertion port, and a cover portion that is provided concentrically with the convex portion so as to cover and protect the edge surface and outer circumferential surface of the peripheral wall portion that forms the fitting insertion port. A liner plug for teat cups.   The concave portion is provided on the opposite side of the portion where the convex portion is provided, and the concave portion is formed so that another piece including the convex portion is inserted and fitted therein. Liner plug for teat cup. A convex part that is inserted and fitted into the insertion slot so as to close the insertion slot for the teat formed by the liner of the teat cup of the milking machine, and a concave part on the opposite side of the part where the convex part is provided The concave portion is formed so that the other piece including the convex portion is inserted and fitted, and the edge portion and the outer peripheral surface of the peripheral wall portion forming the fitting insertion port are covered and protected. In addition, a method for using a liner plug for a teat cup provided with a cover portion provided concentrically with the convex portion,
In the vertically installed state where the liner plug closes the insertion opening that opens below the teat cup that is suspended, the liner plug is used in one or a plurality of stages, and the lower end is slidably placed on the floor surface. A method of using a liner plug for a teat cup, characterized by being used.

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