JP5879623B2 - Milk claw - Google Patents

Description

  The present invention relates to a milk for a milking machine comprising a container body having an opening on the upper surface and provided with a milk outlet, and a lid body provided with a milk inlet and closing the opening of the container body. It is about claws.

  As a milk claw of this type, a milking claw configured with a bowl (container body) and a cover (lid body) is disclosed in Patent Document 1 below. In addition, although multiple types of milking claws are disclosed in Patent Document 1, the milking claw described as “Prior Art” at the beginning of “Best Mode for Carrying Out the Invention” Since this is a milking claw including the basic structure of the milking claw according to the invention disclosed herein, the structure of this milking claw will be described below.

  This milking claw covers the bowl by closing the top opening of the bowl with a circular gasket on top of the bowl and tightening the connector that penetrates the cover to the bowl. Are integrally fixed. Further, in this milking claw, four inlet nipples for allowing milk to flow into the milking claw are provided in the upper part of the cover, and 1 for causing the milk introduced into the milking claw to flow out. Two outlets are provided at the bottom of the bowl.

  In this case, in the configuration in which the milk introduced from each inlet nipple flows down substantially vertically toward the bottom of the bowl, it takes a certain amount of time for the introduced milk to flow through the bowl and reach the outlet. The milk that has flowed into the bowl hits the milk in the bowl and causes foaming in the milking claw.As a result, the quality of the milk is deteriorated, and the presence of the foam prevents the milk from flowing out of the milking claw. Will be inhibited. Therefore, in this milking claw, a configuration is adopted in which milk introduced from each inlet nipple is rapidly flowed toward the outlet in a swirling flow clockwise in a plan view in the milking claw.

  Specifically, in this milking claw, the direction of each inlet nipple (from each inlet nipple so that the milk flowing from each inlet nipple flows downward while turning clockwise along the inner surface of the cover). The direction in which milk flows into the milking claw) is defined. Further, in this milking claw, a cylindrical boss for fastening the connector is erected at the center portion in a plan view of the bowl, and a dam (baffle) extends from the peripheral surface of the boss to the inner surface of the bowl. Plate) is disposed, and a milk flow path having a C-shape in plan view is formed around the boss. Furthermore, in this milking claw, an outlet is provided on one end side of the above-described C-shaped milk flow path in plan view.

  Thereby, in this milking claw, milk flowing into the milking claw from each inlet nipple and flowing clockwise into the bowl while turning clockwise along the inner surface of the cover is a C-shaped milk flow path in plan view. Rotate clockwise to quickly move through the milking claw to reach the outlet. Therefore, as a result of maintaining the kinetic energy of the milk when flowing from the inlet nipple at a sufficiently high level until it reaches the outlet, it becomes possible to make the energy required for sucking the milk from the outlet sufficiently small, The milk can be smoothly discharged without causing the milk to stay in the milking claw.

  On the other hand, Patent Document 2 below discloses an upper sucking milking claw (hereinafter also simply referred to as “milking claw”) configured to include a ball (lower ball: container) and a lid (upper lid: lid). It is disclosed. This milking claw has four inlets for introducing milk into the lid, and a vertical ascending outlet pipe for sucking the milk that has flowed into the milking claw from the bottom side of the bowl and let it flow out of the milking claw (Hereinafter, also simply referred to as “exit pipe”) is passed through the central portion of the lid in plan view, and the lid is screwed onto the upper edge of the ball so as to close the opening on the upper surface of the ball. And the lid is integrated.

  In this case, in this milking claw, the milk flowing in from each inlet is caused to flow in a counterclockwise swirl flow in the plan view in the milking claw, and the outside of the milking claw is discharged from the center portion in plan view at the bottom of the ball to the outside of the milk claw. The structure that sucks out milk is adopted. Specifically, in this milking claw, the cylindrical body constituting each inlet is obliquely attached to the lid so that the introduced milk flows in the ball in a counterclockwise swirling flow. . Further, in this milking claw, deflecting plates are respectively arranged at four locations where milk flowing in from the respective inlets contacts on the inner bottom surface of the ball.

  Thereby, in this milking claw, the milk flowing into the milking claw from each inlet (cylinder body) is allowed to flow down the slope formed by the deflecting plate (the upper surface of the deflecting plate), so that the inside of the ball is left in plan view. And then abuts against the back surface of another deflecting plate disposed downstream in the flow direction, toward the center of the ball where the tip (lower end) of the outlet pipe is located. And is sucked out of the milking claw through the outlet pipe. Therefore, in this milking claw, the milking claw disclosed in Patent Document 1 described above can be smoothly discharged without causing the milk to stay in the milking claw.

Japanese Patent Laying-Open No. 2005-304502 (page 6-8, FIG. 1-5) JP-T 8-508650 (pages 11-15, FIGS. 1-8)

  However, the milking claw disclosed in Patent Document 1 and the milking claw disclosed in Patent Document 2 (hereinafter collectively referred to as “conventional milk claw”) should be solved as follows. There are challenges. In other words, in the conventional milk claw, the milk flowing in from the milk inlet (inlet nipple: inlet) is caused to flow in a clockwise (or counterclockwise) swirling flow in the milk claw, so that the milk flows into the inflow position. A configuration is adopted in which milk is rapidly flowed to a milk outlet (outlet) without flowing out and is allowed to flow out of the milk claw without causing the milk to stay.

  In this case, when milking using this type of milk claw, a constant amount of milk does not always flow continuously from the milk inlet into the milk claw, but in synchronism with the milking operation of the milking machine. Milk flows intermittently into the milk claw. In addition, the amount of inflow of milk flowing in by one milking operation is not constant from the start of inflow to the end of inflow, the amount of inflow increases from the start of inflow, and then the amount of inflow decreases. Furthermore, in this type of milk claw, in order to prevent a large amount of air in the milk claw from flowing out of the milk outlet and causing foaming in the milk line or a reduction in milk suction, The opening area of the milk outlet is limited to a slightly small size, and a configuration is adopted in which milk flows out from the milk outlet on average.

  Therefore, in the conventional milk claw, when milk begins to flow into the milk claw from one of the milk flow inlets, the milk does not stay in the flowed-in position toward the milk outlet. As a result of being moved smoothly inside, a large amount of milk instantaneously reaches the milk outlet, so that there is more milk in the vicinity of the milk outlet than the milk outlet (milk outlet) In the vicinity of the milk). For this reason, in the conventional milk claw, so-called clogging is likely to occur at the milk outlet, and as a result, the presence of milk remaining in the vicinity of the milk outlet flows into the milk claw by the next milking operation. This hinders the outflow of milk guided to the milk outlet, and there is a problem that it is difficult to smoothly flow out the milk from the milk claw.

  The present invention has been made in view of the problems to be solved, and a main object of the present invention is to provide a milk claw capable of smoothly flowing milk in a container from a milk outlet.

In order to achieve the above object, a milk claw according to claim 1 is provided with a container body having an opening on an upper surface and a lid for closing the opening in the container, and a milk inlet is provided in the lid. A milk claw for a milking machine provided with a milk outlet at the bottom of the container body, wherein the lid body has a first orientation toward the central portion of the container body in the container body. The milk inlet is provided so as to allow milk to flow in from obliquely above, and the first directions of the milk inlets that simultaneously allow the milk to flow into the container during milking intersect each other in plan view. a plurality of the milk inlet is provided, said container body, together with the milk outlet is provided at a position except for the center portion in plan view of the bottom portion, from the milk inlet Shunt plate for diverting the milk by the milk to enter is brought into contact with the upper end, in a plan view with respect to the first imaginary line passing through the central portion and the milk outlet of the bottom in a plan view Crossed and erected on the bottom along a second imaginary line that overlaps the first direction in plan view, and the milk that has been diverted by the flow dividing plate is directed toward the milk outlet along the bottom. enable guiding that have been configured.

Furthermore, the milk claw according to claim 2 is the milk claw according to claim 1 , wherein the flow dividing plate is formed such that the upper end portion becomes lower toward the central portion side of the container body.

Also, milk claw according to claim 3, wherein, in the milk claw according to claim 1 or 2, wherein said container body, said bottom inner surface of such decreases as the milk flow outlet side is inclined.

Furthermore, the milk claw according to claim 4 is the milk claw according to any one of claims 1 to 3 , wherein the milk claw is formed to a length reaching the lid from the outer surface of the bottom of the container. A fixing shaft for fixing the lid body in a state in which the opening is closed to the container body is provided, and the container body has a shaft penetrating cylinder portion that penetrates the fixing shaft standing at the central portion of the bottom portion. It is installed.

The milk claw according to claim 5 is the milk claw according to any one of claims 1 to 4 , wherein the milk inlet is formed in the lid and the opening of the container is closed. And a vacuum pressure supply unit attached to the main body so as to supply a vacuum pressure for milking operation to a teat cup connected to the milk inlet.

According to the milk claw of claim 1, the milk flow outlet is provided at a position excluding the central portion at the bottom of the container body ( a position closer to one end of both ends ) , and a flow dividing plate for diverting milk flowing from the milk flow inlet Are crossed in a plan view with respect to a first imaginary line (a line overlapping a first imaginary line segment connecting both ends of the bottom part) passing through the center and the milk outlet in the plan view of the bottom of the container body . By arranging the container body so as to be able to guide the milk separated by the flow dividing plate along the bottom part toward the milk outlet, respectively, along the two imaginary lines ( second imaginary line segment ) By separating the milk flowing in from the inlet by the flow dividing plate, the time required for the milk flowing down the right side of the flow dividing plate to reach the milk outlet and the milk flowing down the left side of the flow dividing plate It is possible to create a time difference from the time required to reach the position of the milk, so that it is preferable that the milk flowing into the milk claw from the milk inlet reaches the milk outlet at once and the milk outlet becomes clogged. As a result of avoidance, the milk in the milk claw can be smoothly discharged from the milk outlet, and the situation in which the vacuum pressure (milk suction pressure) in the milk line fluctuates greatly can be suitably avoided. it can. In addition, by avoiding the occurrence of clogging, it is possible to avoid a situation in which excessively large amount of milk stays in the vicinity of the milk outlet, so that freshly flowing milk strikes the milk in the milk claw and foams. As a result, the situation where the quality of milk is deteriorated can be suitably avoided.

In addition, a milk inflow port is provided in the lid so that milk flows into the container body obliquely from above in a first direction toward the center of the container body, and the second direction overlaps with the first direction in plan view. Unlike the configuration in which milk flows vertically into the milk claw (inside the container) from the milk inlet by setting up the flow dividing plate at the bottom along the imaginary line, the milk flowing into the milk claw Having the force to move in the first direction along the bottom surface allows the milk diverted by the diverter plate to move smoothly in the container, so it is excessive at a position away from the milk outlet Thus, it is possible to more suitably avoid the occurrence of foaming when a large amount of milk is accumulated and new milk is introduced into the milk claw.

Furthermore, the two milk flows into the milk at the same time by providing the lid with a plurality of milk flow ports so that the first directions of the milk flow ports that allow the milk to flow into the container at the same time intersect each other in plan view. Since it is possible to avoid a situation in which the milk flowing in from the inlet collides head-on in the milk claw, it is possible to more suitably avoid the foaming of the milk in the milk claw.

According to the milk claw of claim 2, by forming the flow dividing plate so that the upper end portion becomes lower toward the center side of the container body, the flow dividing plate is not damaged during milking without impairing the function of dividing milk. Since the cleaning liquid can be suitably flowed on the center side, the inside of the milk claw (inside the container) can be preferably cleaned.

According to the milk claw of claim 3, a situation in which an excessive amount of milk is retained at a position away from the milk outlet by inclining the inner surface of the bottom of the container body so as to become lower toward the milk outlet. As a result of allowing the milk to flow appropriately along the inner surface of the bottom part to the milk outlet without causing any turbulence, it is more preferable to avoid the occurrence of foaming when new milk is introduced into the milk claw. Can do.

According to the milk claw of claim 4, by installing the shaft penetrating tube portion through which the fixing shaft for fixing the lid body to the container body is erected at the center portion in a plan view of the bottom portion of the container body, The cylindrical part for shaft penetration provided in the container body, combined with the flow-dividing plate, prevents large fluctuations of the milk in the milk claw (container body), causing foaming and clogging of the milk outlet Can be avoided more suitably.

According to the milk claw of claim 5 , the main body portion and a vacuum pressure supply unit attached to the main body portion so as to be able to supply a vacuum pressure for milking operation to the teat cup connected to the milk inlet. Unlike the configuration in which the vacuum pressure supply unit is formed separately from the container body, etc., by configuring the lid body, before the start of the milking process (when the teat cup is attached to the cow) After completion (when removing the teat cup from the dairy cow), the milk claw, in which the container body, the lid body and the vacuum pressure supply unit are integrated, is transported under the abdomen of the dairy cow and taken out from under the abdomen. Since the attachment and removal can be performed simply by doing, these operations can be easily performed.

1 is an external perspective view of a milk claw 1 according to an embodiment of the present invention. It is an exploded perspective view of milk claw 1 concerning an embodiment of the invention. It is sectional drawing which looked at the milk claw 1 which concerns on embodiment of this invention from the side surface side. It is sectional drawing which looked at milk claw 1 concerning an embodiment of the invention from the back side. It is explanatory drawing for demonstrating the flow of the milk in the lower housing 2 in the milk claw 1 which concerns on embodiment of this invention. It is other explanatory drawing for demonstrating the flow of the milk in the lower housing 2 in the milk claw 1 which concerns on embodiment of this invention.

  Hereinafter, embodiments of a milk claw according to the present invention will be described with reference to the accompanying drawings.

  A milk claw 1 shown in FIG. 1 is an example of “milk claw”, and includes a lower housing 2, an upper housing 3, a pulsation pressure supply unit 4, a grip 5, and a fixing shaft 6.

  The lower housing 2 corresponds to a “container body”, and as illustrated in FIG. 2, as an example, the lower housing 2 is formed in a container shape whose upper surface is opened by a resin material having light transmittance. Further, the upper housing 3 corresponds to a “main body portion”, and as an example, the upper housing 3 is formed in a reverse shallow dish shape so as to be able to close the opening H2 on the upper surface of the lower housing 2 with a light-transmitting resin material. Together with the supply unit 4, a “lid” is configured. Further, the pulsation pressure supply unit 4 is an example of a “vacuum pressure supply unit”, and is formed of a light-transmitting resin material except for a metal hook portion provided at an upper portion, as will be described later. The fixing shaft 6 is fixed to the lower housing 2 together with the upper housing 3 by screws.

In this case, as shown in FIGS. 3, 5, and 6, the lower housing 2 is closer to one of both end portions in the plan view of the bottom portion (the right end portion in each figure: the front end portion in the milk claw 1 of this example). An outlet H21, which is an example of a “milk outlet”, is provided at a position (a position excluding the central portion). As will be described later, the milk discharged from the outlet H21 is fed toward the milk jar (milk). A pipe connection nipple 21 capable of connecting a milk line pipe (not shown) for sucking milk from the claw 1 is connected to the outlet H21. As shown in FIGS. 2 to 6, at the bottom of the lower housing 2, as will be described later, four diverter plates 22 a to 22 d (an example of a “diverter plate”) that diverts milk flowing into the milk claw, as described below: When not distinguished, this is also referred to as “a flow dividing plate 22”).

  Further, as shown in FIGS. 2 and 3, in the vicinity of the outlet H21 in the lower housing 2, the outlet H21 is opened and closed by changing the position of the valve body 23a by rotating the operation knob 23b. A valve 23 that allows / regulates the outflow of fluid (milk or cleaning liquid) from the outlet H21 is provided. As shown in FIGS. 2 to 4, a shaft penetrating cylinder portion 24 for penetrating the fixing shaft 6 is erected in the central portion of the lower housing 2 in plan view. Furthermore, a grip mounting portion 25 to which the grip 5 is mounted is formed on the outer surface of the bottom portion of the lower housing 2. In this case, as shown in FIGS. 3 and 4, in the lower housing 2 of this example, the inner surface of the bottom portion is inclined so as to become lower toward the outlet H21.

  In addition, as shown in FIG. 2, the upper housing 3 has four inlets H31a to H31d (an example of “milk inlet” for injecting milk into the milk claw 1; Pipe connection nipples 31 a to 31 d (hereinafter also referred to as “pipe connection nipple 31” when not distinguished) provided with a teat cup (not shown) connected to a cow during milking. Are connected to each inlet H31. Further, as shown in FIG. 3, the upper housing 3 has a milk claw 1 inside when milk is sucked through the milk line pipe connected to the pipe connection nipple 21 of the lower housing 2 as described above. Is provided with a vent hole H 3 for introducing a small amount of air into the milk claw 1.

  Further, in the milk claw 1 of this example, each inlet H31 (for connecting pipes) is arranged so that milk flows into the lower housing 2 from the upper side in a “first direction” toward the center in the plan view of the lower housing 2. A nipple 31) is provided in the upper housing 3. Specifically, the inflow port H31a is provided with a pipe connection nipple 31a so that milk can flow into the lower housing 2 with the direction of the arrow A shown in FIGS. The pipe connection nipple 31b is connected to the inflow port H31b so that milk can flow into the lower housing 2 with the direction of the arrow B as the “first direction”. The inlet H31c is connected to the pipe nipple 31c so that the milk can flow into the lower housing 2 with the direction of the arrow C as the “first direction”, and the inlet H31d The pipe connection nipple 31d is connected so that milk can flow into the lower housing 2 with the direction D as the "first direction" described above.

  In this case, in the milking system equipped with the milk claw 1 of this example, as will be described later, a milking operation for flowing milk into the milk claw 1 from two of the inlets H31a and H31b, and two of the inlets H31c and H31d. The structure which alternately performs milking operation | movement which flows milk into the milk claw 1 from one is employ | adopted. Therefore, in the milk claw 1 of this example, the directions of the arrows A and B, which are “first directions” between the inlets H31a and H31b through which milk flows simultaneously during one milking operation, intersect each other in a plan view. The inlets H31a, H31b (piping connection nipples 31a, 31b) are provided, and the directions of the arrows C, D, which are “first directions” between the inlets H31c, H31d that allow milk to flow simultaneously during the other milking operation. By providing the inlets H31c and H31d (piping connection nipples 31c and 31d) so as to cross each other in a plan view, a configuration is adopted that avoids a situation in which milk that has flown at the same time collides frontward in the milk claw 1. Yes.

Moreover, in the milk claw 1 of the present example, the end on the side where the outlet H21 is provided at the bottom of the lower housing 2 (the right end in FIGS. 3, 5 and 6: the front end) and the opposite end Plane with respect to the "first imaginary line segment ( first imaginary line passing through the center of the bottom part and the outlet H21) " connecting the parts (left end part in FIG. 3, 5, 6: rear end part). Each flow dividing plate 22 is erected on the bottom of the lower housing 2 along a “ second imaginary line segment (second imaginary line) ” that intersects in view. Specifically, as shown in FIGS. 5 and 6, the flow dividing plate 22a for diverting the milk flowing in from the inlet H31a has the broken line L1 in the same figure as the “first imaginary line segment (first a virtual line) ", cross in a plan view with respect to the broken line L1, and the dashed line L2a of the overlapping with the direction of the arrow a is a direction of flow of the milk from the inlet H31a" second phantom line segment ( As a second imaginary line) ”is provided on the bottom of the lower housing 2 along the broken line L2a. Further, the flow dividing plate 22b for diverting the milk flowing in from the inflow port H31b has the broken line L1 in the figure as the above "first imaginary line segment (first imaginary line) ", and the broken line L1 A broken line L2b that intersects in a plan view and overlaps the direction of the arrow B that is the inflow direction of milk from the inflow port H31b is referred to as the “second imaginary line segment (second imaginary line) ”. And is erected on the bottom of the lower housing 2.

Furthermore, the flow dividing plate 22c for diverting the milk flowing in from the inlet H31c has the above-mentioned broken line L1 as the “first imaginary line segment (first imaginary line) ”, and with respect to the broken line L1. A broken line L2a that intersects in a plan view and overlaps the direction of the arrow C that is the inflow direction of milk from the inflow port H31c is referred to as the above-mentioned “second imaginary line segment (second imaginary line) ”. And is erected on the bottom of the lower housing 2. Further, the flow dividing plate 22d for diverting the milk flowing in from the inflow port H31d has the broken line L1 in the figure as the above "first imaginary line segment (first imaginary line) ", with respect to the broken line L1. A broken line L2b that intersects in a plan view and overlaps the direction of the arrow D that is the inflow direction of milk from the inflow port H31d is referred to as the above-mentioned “second imaginary line segment (second imaginary line) ”. And is erected on the bottom of the lower housing 2. In this case, as shown in FIGS. 2 to 4, in the milk claw 1 of this example, the upper end portion of each flow dividing plate 22 is lowered toward the center portion side in the plan view of the lower housing 2.

  In the milk claw 1 of the present example, the shunt plate 22 having a length reaching the central portion (in the vicinity of the shaft penetrating tube portion 24) from the inner surface of the lower housing 2 is provided in the lower housing 2 as a “split plate”. However, a configuration is provided in which a gap is provided between the outer end of each flow dividing plate 22 in plan view and the inner surface of the lower housing 2 (a configuration in which each flow dividing plate 22 is not in contact with the inner surface of the lower housing 2). It can also be done (not shown).

  On the other hand, as shown in FIG. 2, the pulsation pressure supply unit 4 includes pipe connection nipples 41a and 41b to which a vacuum pressure supply pipe (not shown) connected to a vacuum pump (not shown) in the milking system is connected. Pipe connection nipples 42a to 42d to which vacuum pressure supply pipes (not shown) connected to teat cups connected to the pipe connection nipples 31a to 31d are respectively connected. In this case, in the milk claw 1 of this example, as an example, the pipe connection nipples 42a and 42b are communicated with the pipe connection nipple 41a, and the pipe connection nipples 42c and 42d are connected to the pipe connection nipple. 41b is communicated. In the following description, when the pipe connection nipples 42a to 42d are not distinguished, they are also referred to as “pipe connection nipples 42”.

  Further, the grip 5 is formed of, for example, a resin material such as foamed urethane resin or an elastic material such as silicon rubber. As shown in FIGS. 3 and 4, the grip mounting portion provided at the bottom of the lower housing 2. It is fixed to the lower housing 2 by the fixing shaft 6 in a state where it is fitted in 25. The fixing shaft 6 has a length that reaches the pulsation pressure supply unit 4 from the outer surface at the bottom of the lower housing 2 through the lower housing 2 and the upper housing 3. The fixing shaft 6 has a male screw formed at the tip (upper end) thereof, and is screwed into a female screw (not shown) formed in the pulsating pressure supply unit 4 so that the grip 5, the lower housing 2, and the upper housing 3 and the pulsation pressure supply unit 4 can be fixed integrally.

  In manufacturing the milk claw 1, first, the valve 23 is attached to the lower housing 2. Specifically, the shaft of the operation knob 23 b is inserted into the lower housing 2 from the bottom surface side, and the valve main body 23 a is fixed to the tip of the shaft in the lower housing 2. Next, the packing 3 a is placed on the upper edge portion of the peripheral wall portion of the lower housing 2, and the packing 3 b is placed on the upper end portion of the shaft penetrating cylinder portion 24 of the lower housing 2. Subsequently, the upper housing 3 is placed on the lower housing 2 (on the packings 3a and 3b placed on the lower housing 2) so as to close the opening H2 on the upper surface side of the lower housing 2.

  Next, the pre-assembled pulsation pressure supply unit 4 is placed on the upper housing 3, and the grip 5 is fitted into the grip mounting portion 25 of the lower housing 2. Subsequently, the fixing shaft 6 on which the collar 5 a (see FIGS. 2 to 4) is mounted is penetrated from the bottom surface side of the lower housing 2 to the shaft penetrating cylinder portion 24 so as to penetrate the grip 5. At this time, the distal end portion (upper end portion) of the fixing shaft 6 passes through the upper housing 3 and reaches the pulsation pressure supply unit 4. After this, the grip 5, the lower housing 2, the packings 3a and 3b, the upper housing 3 and the pulsating pressure supply unit are tightened by tightening the male screw at the tip of the fixing shaft 6 into the female screw formed in the pulsating pressure supply unit 4. 4 are integrally connected by a fixing shaft 6 to complete the milk claw 1 as shown in FIG.

  On the other hand, when milking using the milk claw 1, first, a teat cup is connected to each pipe connecting nipple 31 of the upper housing 3 and each pipe connecting nipple 42 of the pulsating pressure supply unit 4. In addition, about the structure of a teat cup, the connection aspect of a teat cup and a milk claw, and about components other than the teat cup and the milk claw which comprise a milking system, as an example, the applicant describes in Unexamined-Japanese-Patent No. 2013-66447. Since it is the same as that of the example of the milking system which is disclosed, illustration and detailed description are abbreviate | omitted.

  Next, the milk line pipe is connected to the pipe connection nipple 21 of the lower housing 2, and the vacuum pressure supply pipe is connected to the pipe connection nipples 41 a and 41 b of the pulsation pressure supply unit 4. Thereby, it will be in the state in which milking using the milk claw 1 is possible. Then, while performing the switch operation which starts milking, the milk claw 1 is mounted | worn with a cow. Specifically, after the switch operation, as an example, two teat cups connected to the pipe connection nipples 31a and 31b and the pipe connection nipples 42a and 42b are respectively attached to the two breasts on the front side of the cow. At the same time, the two teat cups connected to the pipe connection nipples 31c and 31d and the pipe connection nipples 42c and 42d are respectively attached to the two breasts on the rear side of the cow.

  At this time, a low vacuum pressure is supplied into the milk claw 1 through the milk line pipe connected to the pipe connection nipple 21 (the inside of the milk line is in a low vacuum state), and each pipe connection nipple 31 is supplied. The inside of the teat cup is shifted to a low vacuum state via the (inlet H31), and the vacuum pressure is alternately supplied to the pipe connection nipples 41a and 41b, so that each teat cup is in a massage state and milking. The state is shifted alternately.

  Specifically, when a vacuum pressure is supplied to the pipe connection nipple 41a, a teat cup connected to the pipe connection nipples 42a and 42b (a teat cup attached to the two breasts on the front side of the cow) And the vacuum pressure line on the side of the pipe connection nipple 41b becomes atmospheric pressure, and the teat cups connected to the pipe connection nipples 42c and 42d (two rear cow cows) The liner of the teat cup) attached to the breast is contracted by the low vacuum pressure supplied through the inlets H31c and H31d to become a massage state. When vacuum pressure is supplied to the pipe connection nipple 41b, the liner of the teat cup connected to the pipe connection nipples 42c and 42d expands into a milking state, and the pipe connection nipple 41a side The vacuum pressure line becomes atmospheric pressure, and the liner of the teat cup connected to the pipe connection nipples 42a and 42b contracts by the low vacuum pressure supplied through the inlets H31a and H31b to become a massage state. .

  Thereby, the milk milked from the two breasts on the front side of the dairy cow flows into the milk claw 1 from the inlets H31a and H31b, and the milk milked from the two breasts on the rear side of the dairy cow becomes the inlet H31c, The state of flowing into the milk claw 1 from H31d alternately occurs, and the milk flowing into the milk claw 1 flows out from the outlet H21 (pipe connection nipple 21) to the milk line piping and is stored in a milk jar (not shown). Is done.

In this case, as described above, in the milk claw 1 of this example, the flow dividing plate 22 for diverting the milk flowing in from the respective inlets H <b> 31 is erected on the bottom of the lower housing 2. Therefore, when milk flows into the milk claw 1 from the two breasts on the front side of the dairy cow, it flows into the milk claw 1 in the direction of the arrow A (first direction) from the inlet H31a as shown in FIG. When milk comes into contact with the upper end of the flow dividing plate 22a, the flow flows down the right side of the flow dividing plate 22a (the right side when viewed along the direction of arrow A: the front side of the lower housing 2), and the flow dividing plate 22a As shown by the arrow A1, the flow that has been divided into two flows, the flow flowing down the left side (left side when viewed along the direction of the arrow A: the rear side of the lower housing 2) and the flow flowing down the right side, The flow flowing toward the outlet H21 and flowing down on the left side flows toward the outlet H21 after flowing toward the rear of the lower housing 2 as indicated by an arrow A2.

When the milk flowing into the milk claw 1 in the direction of the arrow B (first direction) from the inlet H31b comes into contact with the upper end of the flow dividing plate 22b, the left side of the flow dividing plate 22b (along the direction of the arrow B) Left side when viewed from the front: the flow flowing down the front side of the lower housing 2, and the flow flowing down the right side of the flow dividing plate 22b (right side when viewed along the direction of the arrow B: the rear side of the lower housing 2). The flow flowing down on the left side flows toward the outlet H21 as shown by the arrow B1, and the flow flowing down on the right side of the lower housing 2 as shown by the arrow B2 After flowing toward the rear, it flows toward the outlet H21.

  At this time, the milk flow paths indicated by arrows A1 and B1 are shorter than the milk flow paths indicated by arrows A2 and B2. For this reason, in this milk claw 1, the milk that has flowed down the right side of the flow dividing plate 22a and the milk that has flowed down the left side of the flow dividing plate 22b are caused to flow in the milk claw 1 as indicated by arrows A1 and B1, and the outlet H21. The milk flowing down the left side of the flow dividing plate 22a and the milk flowing down the right side of the flow dividing plate 22b after starting to flow out from the pipe connection nipple 21 (milk line) pipe are shown in arrows A2 and B2. 1 is made to flow and reaches the outlet H21. As a result, the situation where the milk flowing into the milk claw 1 from the inlet H31a as shown by the arrow A and the milk flowing into the milk claw 1 from the inlet H31b as shown by the arrow B reach the outlet H21 all at once. Is avoided, and the situation where milk stays in the vicinity of the outlet H21 is avoided.

On the other hand, when milk flows into the milk claw 1 from the two breasts on the rear side of the cow, as shown in FIG. 6, it flows into the milk claw 1 in the direction of the arrow C (first direction) from the inlet H31c. A flow that flows down the left side of the flow dividing plate 22c (left side when viewed along the direction of the arrow C: the front side of the lower housing 2) when the milk that has come into contact with the upper end of the flow dividing plate 22c, As shown by an arrow C1, the flow that is divided into two flows, the flow flowing down the right side of 22c (the right side when viewed along the direction of arrow C: the rear side of the lower housing 2) and the flow flowing down the left side, The flow flowing toward the outlet H21 and flowing down on the right side flows toward the outlet H21 after flowing toward the rear of the lower housing 2 as indicated by an arrow C2.

Further, when the milk flowing into the milk claw 1 in the direction of the arrow D (first direction) from the inflow port H31d comes into contact with the upper end portion of the flow dividing plate 22d, the right side of the flow dividing plate 22d (along the direction of the arrow D). Right side when viewed from the front side: the flow flowing down the front side of the lower housing 2, and the flow side flowing down the left side of the flow dividing plate 22d (left side when viewed along the direction of the arrow D: the rear side of the lower housing 2). The flow flowing down on the right side flows toward the outlet H21 as shown by an arrow D1, and the flow flowing down on the left side of the lower housing 2 as shown by an arrow D2. After flowing toward the rear, it flows toward the outlet H21.

  At this time, the milk flow paths indicated by arrows C1 and D1 are shorter than the milk flow paths indicated by arrows C2 and D2. For this reason, in this milk claw 1, the milk that has flowed down the left side of the flow dividing plate 22c and the milk that has flowed down the right side of the flow dividing plate 22d are caused to flow in the milk claw 1 as indicated by arrows C1 and D1, and the outlet H21. As shown by arrows C2 and D2, milk flowing down the right side of the flow dividing plate 22c and milk flowing down the left side of the flow dividing plate 22d after starting to flow out from the pipe connection nipple 21 (milk line) pipe 1 is made to flow and reaches the outlet H21. As a result, the milk flowing into the milk claw 1 from the inlet H31c as shown by the arrow C and the milk flowing into the milk claw 1 from the inlet H31d as shown by the arrow D reach the outlet H21 all at once. Is avoided, and the situation where milk stays in the vicinity of the outlet H21 is avoided.

In FIG. 6, in order to facilitate understanding of the milk flow dividing by the flow dividing plates 22 c and 22 d, the flow flows into the milk claw 1 in the direction of arrow C from the inlet H 31 c and contacts the upper end of the flow dividing plate 22 c. And the milk that flows into the milk claw 1 in the direction of arrow D from the inlet H31d and contacts the upper end of the flow dividing plate 22d, flows down the right side of the flow dividing plate 22c toward the outlet H21, The flow flowing down the left side of the flow dividing plate 22d toward the outlet H21 is separately illustrated by two arrows C2 and D2, but actually, milk flows in from the inlets H31c and H31d at the same time. The milk flowing down on the right side of the flow dividing plate 22c and the milk flowing down on the left side of the flow dividing plate 22d are mixed between the flow dividing plates 22c and 22d (the rear side of the lower housing 2). There, it is at the time of flowing toward the outlet H21, and thus to reach the two streams to diverted to the outlet H21 again by the presence of a shaft through cylindrical portion 24.

  In this case, the outlet H21 is provided at one (front end) of both ends of the bottom of the lower housing 2, and the end (front end) on the side where the outlet H21 is provided, and the end farthest from the end. “Second imaginary line segment (broken lines L2a, L2b in FIGS. 5 and 6) intersecting with the“ first imaginary line segment (broken line L1 in FIGS. 5 and 6) ”connecting the (rear end portions) in plan view In the milk claw 1 of this example in which each of the flow dividing plates 22 is disposed along the flow path, as described above, the flow length of the flow channel where the milk flowing down the right side of the flow dividing plate 22 reaches the outlet H21, and the flow dividing A difference occurs in the channel length of the channel through which the milk flowing down the left side of the plate 22 reaches the outlet H21. Accordingly, as a result of a time difference in the time until the milk divided by each of the flow dividing plates 22 reaches the outlet H21, the milk that has flowed into the milk claw 1 reaches the outlet H21 on average. Thus, it is possible to prevent a liquid clog from occurring and to allow a certain amount of milk to flow out from the outlet H21.

  In the milk claw 1 described above, since the flow dividing plate 22 is erected in the lower housing 2, the flow dividing plate 22 functions as a baffle plate, and the milk in the milk claw 1 (in the lower housing 2) is large. Swing (for movement of milk from the front end to the rear end of the lower housing 2 and from the rear end to the front end, and movement of milk from the left end to the right end and from the right end to the left end of the lower housing 2 (Caused wave) is prevented. Further, in the milk claw 1 of the present example, the shaft penetrating cylinder portion 24 provided at the center portion of the lower housing 2 for allowing the fixing shaft 6 to pass through is also coupled with each flow dividing plate 22 in the milk claw 1. Prevents large oscillation of milk in the lower housing 2. Thereby, foaming of milk in the milk claw 1 is preferably avoided, and a situation in which a large fluctuation occurs in the discharge pressure of milk from the outlet H21 (low vacuum pressure applied to the outlet H21) is avoided. Is done.

On the other hand, in the milking system using this type of milk claw 1, after the milking is completed, a process of cleaning the inside of each device is performed by supplying a cleaning liquid to the milk line. In this case, when the “distribution plate” provided in the “milk claw” has the same height from the inner surface of the “container” to the central portion in plan view (each of the distribution plates of the lower housing 2 in the milk claw 1 described above) When the upper end of the central portion side of the flow dividing plate 22 is made higher than that of the flow dividing plate 22), the function of the baffle plate can be exhibited more suitably, but the flow of the cleaning liquid in the milk claw 1 However, it is obstructed by the flow dividing plate 22 that functions as a baffle plate, and it may be difficult to sufficiently clean the inside of the milk claw 1 (inside the lower housing 2). Therefore, in the milk claw 1 of the present example, the flow of the cleaning liquid in the milk claw 1 can be reduced without impairing the function as the “distribution plate” by lowering the height of the upper end portion toward the central portion side of each distribution plate 22. This allows the inside of the milk claw 1 (inside the lower housing 2) to be suitably cleaned.

  In this case, when milk is milked from one cow, the milking amount per unit time (that is, the inflow amount into the milk claw 1) gradually decreases as the elapsed time from the start of milking becomes longer. . On the other hand, as described above, in the milk claw 1 of the present example, the inside of the lower housing 2 is “in the first direction (directions of arrows A to D shown in FIGS. 5 and 6) toward the center portion in the plan view of the lower housing 2. An inlet H31 (pipe connection nipple 31) is formed in the upper housing 3 so as to allow milk to flow into obliquely from above, and the “second imaginary line segment that overlaps with the“ first direction ”in plan view. Each flow dividing plate 22 is erected on the bottom of the lower housing 2 along (broken lines L2a, L2b).

Accordingly, in the milk claw 1 of this example, immediately after the start of milking from one cow, that is, in a state where the milking amount per unit time is large and milk flows into the milk claw 1 vigorously, each inlet H31 The milk that has flowed in from abuts against a position near the center of the flow dividing plate 22. At this time, since the momentum of the milk flowing into the milk claw 1 is strong, even if the central portion side of the flow dividing plate 22 with which the milk abuts is somewhat low, the flowing milk is preferably divided by each flow dividing plate 22. In addition, when a certain amount of time has elapsed since the start of milking, that is, in a state where the milking amount per unit time has decreased and the momentum of the milk flowing into the milk claw 1 has decreased, the milk flowing in from each inlet H31 However, it contacts the position from the inner surface of the flow dividing plate 22. At this time, since the milk comes into contact with the upper end portion present at a sufficiently high position in the flow dividing plate 22, the milk is suitably diverted by each flow dividing plate 22 even if the inflowing milk is weak.

  Thereby, in this milk claw 1, when milk is milked from one cow, milk flowing into the milk claw 1 can be suitably divided by each flow dividing plate 22 regardless of the elapsed time from the start of milking. On the other hand, in the cleaning process after milking, the cleaning liquid can be suitably flowed near the central portion of each flow dividing plate 22, so that the inside of the milk claw 1 (inside the lower housing 2) can be preferably cleaned. It has become.

As described above, according to this milk claw 1, the outlet H21 for allowing the milk to flow out is provided at a position closer to one of the both ends at the bottom of the lower housing 2, and the flow dividing plate 22 for dividing the milk flowing in from the inlet H31. To the “first imaginary line segment (first imaginary line) ” connecting both ends of the bottom of the lower housing 2 in a plan view “second imaginary line segment (second imaginary line) ” The lower housing 2 is constructed so that the milk separated by the flow dividing plate 22 can be guided along the bottom toward the outlet H21, so that the milk flowing in from the inlet H31 is made by the flow dividing plate 22. By dividing the flow, the time required for the milk flowing down the right side of the flow dividing plate 22 to reach the outlet H21 and the milk flowing down the left side of the flow dividing plate 22 are discharged from the outlet H21. Since it is possible to create a time difference from the time required to reach the milk, it is preferable that the milk flowing into the milk claw 1 from the inlet H31 reaches the outlet H21 at once and the outlet H21 is clogged. As a result of avoidance, the milk in the milk claw 1 can be smoothly discharged from the outlet H21, and the situation in which the vacuum pressure (milk suction pressure) in the milk line greatly fluctuates is preferably avoided. Can do. Further, since occurrence of liquid clogging is avoided, a situation in which excessively much milk stays in the vicinity of the outlet H21 is avoided, so that newly flowing milk strikes the milk in the milk claw 1 vigorously. As a result of avoiding the occurrence of foaming, a situation in which the quality of milk is deteriorated can be suitably avoided.

Further, according to the milk claw 1, the inlet H31 is provided in the upper housing 3 so that the milk flows into the lower housing 2 obliquely from above in a “first direction” toward the center of the lower housing 2, The shunt plate 22 is erected on the bottom of the lower housing 2 along the “ second imaginary line segment (second imaginary line) ” that overlaps the above “first direction” in plan view, so that “milk claw Unlike the configuration in which milk is allowed to flow vertically from the “milk inlet” into the inside of the “container body”, the milk that has flowed into the milk claw 1 is in the “first direction” along the bottom surface of the lower housing 2. Since the milk diverted by the diverter plate 22 can be smoothly moved in the lower housing 2, it can be moved to a position away from the outlet H21. It is possible to more suitably avoid a situation in which foaming occurs when excessive milk is accumulated and new milk is introduced into the milk claw 1.

  Furthermore, according to this milk claw 1, the “first directions” of the inlets H31a and H31b and the inlets H31c and H31d through which milk flows into the lower housing 2 simultaneously intersect with each other in plan view. By providing the inlets H31a to H31d in the upper housing 3, the milk flowing in from the inlets H31a and H31b collides head-on in the milk claw 1, or the milk flowing in from the inlets H31c and H31d in the milk claw 1. Since a situation of a frontal collision can be avoided, milk foaming in the milk claw 1 can be more preferably avoided.

  Moreover, according to this milk claw 1, since the flow dividing plate 22 is formed so that the upper end portion becomes lower toward the center side of the lower housing 2, the flow is diverted in the cleaning process without impairing the function of diverting the milk during milking. Since the cleaning liquid can be suitably flowed to the plate 22 on the center side, the inside of the milk claw 1 (inside the lower housing 2) can be cleaned appropriately.

  Furthermore, according to this milk claw 1, a situation in which an excessive amount of milk stays at a position away from the outlet H21 by inclining the inner surface of the bottom portion of the lower housing 2 so as to become lower toward the outlet H21. As a result of the milk being able to flow suitably along the inner surface of the bottom part to the outlet H21, the occurrence of foaming when new milk is introduced into the milk claw 1 is more preferably avoided. be able to.

  Further, according to the milk claw 1, the shaft penetrating cylinder portion 24 that penetrates the fixing shaft 6 for fixing the “lid (upper housing 3 and pulsation pressure supply unit 4)” to the lower housing 2 is provided in the lower housing. 2, the shaft penetrating tube portion 24 provided in the lower housing 2 is coupled with the flow dividing plate 22 in the milk claw 1 (in the lower housing 2). In order to prevent large fluctuations of the milk, it is possible to more suitably avoid situations where foaming occurs or liquid clogging occurs at the outlet H21.

  Furthermore, according to this milk claw 1, it was attached to the upper housing 3 so that the vacuum pressure for milking operation | movement can be supplied with respect to the upper housing 3 as a "main-body part", and the teat cup connected to the inflow port H31. What is the configuration in which the “vacuum pressure supply unit” is formed separately from the “container body” by configuring the “lid body” with the pulsation pressure supply unit 4 as the “vacuum pressure supply unit”? In contrast, the lower housing 2 and the upper housing 3 and the pulsating pressure supply unit 4 before the start of the milking process (when the teat cup is attached to the cow) and after the end of the milking process (when the teat cup is removed from the cow). Can be installed and removed simply by transporting the milk claw 1 integrated with and under the abdomen of the cow and removing it from the abdomen. Rukoto can.

  The configuration of “milk claw” is not limited to the configuration of milk claw 1 described above. For example, the milk is allowed to flow simultaneously into the milk claw 1 (in the lower housing 2) from the inlets H31a and H31b, and the milk is allowed to flow simultaneously into the milk claw 1 (in the lower housing 2) from the inlets H31c and H31d. However, for example, milk is simultaneously introduced into the milk claw 1 (in the lower housing 2) from the inlets H31a and H31d, and from the inlets H31b and H31c. Milking can also be performed in a form of use in which milk flows simultaneously into the milk claw 1 (in the lower housing 2). Even when milking in such a usage pattern, the milk can be smoothly discharged from the outlet H21 in the same manner as in the above example, and a situation in which the quality of the milk deteriorates can be suitably avoided. it can.

  Further, the configuration including the four inlets H31a to H31d and the four flow dividing plates 22a to 22d has been described as an example, but the configuration including one “milk inlet” and one “flow dividing plate” Alternatively, a configuration including two “milk inlets” and two “distribution plates” (both not shown) may be employed.

DESCRIPTION OF SYMBOLS 1 Milk claw 2 Lower housing 3 Upper housing 4 Pulsation pressure supply unit 5 Grip 6 Fixing shaft 21, 31a-31d, 41a, 41b, 42a-42d Pipe connection nipple 22a-22d Dividing plate 24 Shaft penetrating cylinder 25 Grip Mounting part H3 Vent H21 Outlet H31a-H31d Inlet L1, L2a, L2b Broken line

Claims (5)

A container body having an opening on the top surface and a lid for closing the opening in the container body; a milk inlet is provided in the lid; and a milk outlet is provided at the bottom of the container. A milk claw for a milking machine,
The lid body is provided with the milk inlet so as to allow milk to flow into the container body obliquely from above in a first direction toward the central portion of the container body. A plurality of the milk inlets are provided such that the first directions of the milk inlets that are allowed to flow simultaneously into each other intersect each other in plan view,
In the container body, the milk outlet is provided at a position excluding a central portion in a plan view of the bottom, and the milk that flows in from the milk inlet is brought into contact with the upper end so that the milk is separated. A second imaginary line , in which the plate intersects the first imaginary line passing through the central portion of the bottom and the milk outlet in plan view, and overlaps with the first direction in plan view A milk claw that is erected along the bottom and is capable of guiding the milk separated by the flow dividing plate toward the milk outlet along the bottom. The diverter plate is milk claw according to claim 1 Symbol mounting the upper end portion as a side of said central portion of said container body is formed to be lower. The milk claw according to claim 1 or 2 , wherein an inner surface of the bottom portion is inclined so that the container body becomes lower toward the milk outlet. A fixing shaft for fixing the lid body in a state where the lid body is formed in a length reaching the lid body from the outer surface of the bottom portion of the container body and closing the opening of the container body;
The milk claw according to any one of claims 1 to 3 , wherein the container body has a shaft penetrating cylinder portion that penetrates the fixing shaft standing at the central portion of the bottom portion. The lid is formed with the milk inlet, and a main body for closing the opening of the container body, and a vacuum pressure for milking operation is supplied to a teat cup connected to the milk inlet. The milk claw according to any one of claims 1 to 4 , further comprising a vacuum pressure supply unit attached to the main body portion.

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