JPS5855782B2 - chicken leg fixator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chicken leg fixing device for fixing chicken legs in a substantially horizontal state, and particularly to a chicken leg fixing device suitable for use when performing artificial insemination of chickens.

Conventionally, in order to obtain fertilized eggs for breeding eggs, it has been common practice to use the natural mating method of group rearing on flat beds, and in this case, the ratio of roosters to hens is required to be at least 10%.

According to this natural mating method, when a hen lays a fertilized egg, it is impossible to identify the rooster with which it will mate.
It is not possible to distinguish between the superiority and inferiority of each rooster's reproductive ability, and when the number of unfertilized or unfertilized eggs increases, it is impossible to determine which rooster is responsible for the increase, and the reproductive ability It has the disadvantage that it is impossible to selectively cull cocks that have decreased

In addition, in flat-bed group rearing, it is impossible to effectively manage the amount of feed given to each hen, and approximately 500
There is also the drawback that the only method available is to feed a group of 1,000 birds with feed equal to the average feeding amount per bird multiplied by the current number.

On the other hand, if one or several hens are kept in cages and these hens are artificially inseminated with separately collected rooster semen, the ratio of roosters to hens is 5%. It is sufficient to keep track of the semen supplying roosters used for each hen.

Therefore, it is possible to reduce the amount of feed given because it is necessary to keep a small number of roosters with large bodies and large feed intakes, and if there is an increase in the number of unfertilized or unfertilized eggs, the cause can be immediately determined. This makes it possible to eliminate the first drawback of the natural mating method described above.

It has been experimentally confirmed that, with artificial insemination, the number of effective eggs that can be collected from a hen's feathers increases by 5 to 10 during its lifetime compared to natural mating methods.

Furthermore, if the artificial insemination method is adopted, it becomes possible to keep the hens in cages, which means that it is only necessary to control the amount of food fed to one or several hens, which overcomes the second disadvantage of the natural breeding method mentioned above. This makes it possible to maximize the egg-laying ability of each hen.

Although the artificial insemination method has these advantages, it is necessary to perform artificial insemination on each hen every 6 days, and this work involves taking out the hens one by one from the cage and having the operator handle them. This is done in an extremely inefficient manner by holding the hen under her arm and having another worker inject semen into the hen's anus.

Therefore, it is not compatible with the current situation where dogs are bred in large numbers, and the reality is that it is not very popular.

The present invention was developed in view of the above points, and aims to provide a chicken leg fixation device that enables efficient artificial insemination. A control part that is displaced in the height direction when the rotary shaft is rotated by a predetermined angle is formed at an appropriate position on the rotary shaft that is rotatably supported so as to be located lower, and the vertical movement is controlled by this control part. An elevating member elastically biased in the upward direction is connected to the rotating shaft, and a locking portion is formed at the upper end of the elevating member so that the locking portion protrudes from the upper surface of the base; A fixing plate is swingably supported on the base at a position spaced upward from the top surface of the base by a predetermined distance, and the fixing plate has a locking member that engages with the locking portion to prevent the swinging. The joint part is formed so that the leg of the chicken can be clamped and fixed between the upper surface of the base and the fixing plate.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

In FIGS. 1 to 6, reference numeral 1 denotes a housing-like base, and a rotary shaft 2 is rotatably supported on this base so as to be positioned below the upper surface thereof.

An operating lever 3 is attached to one end of the rotating shaft 2, located outside the base 1, and a control lever 3, which is located inside the base 1, is attached to the other end of the rotating shaft 2. A small diameter shaft portion 4 is formed at approximately half of the rotating shaft 2, and a portion of its curved surface coincides with a portion of the curved surface of the rotating shaft 2.

Reference numeral 5 denotes an elevating member formed in the shape of a substantially rectangular plate, which is positioned corresponding to the small-diameter shaft portion 4 by a circular hole 6 having a diameter slightly larger than the diameter of the rotating shaft 2, which is transparent in the thickness direction. It is fitted and supported by the rotating shaft 2.

This elevating member 5 is biased in the upward direction by a coil spring 8 wound around a projecting pin 7 protruding from the inner bottom of the base 1, and its upper part is formed by a rectangular hole transparently provided in the upper plate of the base 1. 9
stands out from

A locking portion 11 having a slope 10 is provided at the upper end of the elevating member 5 .

Reference numerals 12 and 13 designate a pair of support plates provided on the upper surface of the base 1, to which both ends of the support shaft 14 are fixed.

Reference numeral 15 denotes a fixing plate that is swingably supported on the support shaft 14 by a bulge 16 formed at one end thereof, and the bulge 16 has the locking part when the fixing plate 15 is in a horizontal state. An engaging portion 1γ cut out following this pattern to engage with 11
is formed.

Further, a surface of the bulging portion 16 corresponding to the end surface of the fixing plate 15 is formed in a curved shape.

18 is a stopper vertically installed on the soil surface of the base 1;
The upper end surface position is set so that the fixed plate 15 is maintained in a horizontal state.

Since the present embodiment is configured as described above, when the rotating shaft 2 is rotated 180 degrees by the operating lever 3 in the state shown in FIG. 2, the small diameter shaft portion 4 is displaced from the lowermost position to the uppermost position, as shown in transition to the state.

Therefore, the elevating member 5 is lifted by the biasing force of the coil spring 8 due to the displacement of the small diameter shaft portion 4, and the fixed plate 1
5 transitions from the free state to the engageable state (see FIGS. 4 and 5).

In this state, when the fixed plate 15 is swung toward the stopper 18, the curved surface of the bulged portion 16 comes into sliding contact with the slope 10 of the locking portion 11, as shown in FIG. It is slightly lowered against the biasing force of the coil spring 8.

When the fixed plate 15 is swung to a substantially horizontal position, the engaging portion 11 and the locking portion 11 are brought into corresponding positions, and the lifting member 5 is moved to the small diameter shaft portion by the biasing force of the coil spring 8. 4, the locking portion 11 enters the engaging portion 1T, and the tip of the fixing plate 15 comes into contact with the stopper 18 (see FIG. 6).

Therefore, the fixed plate 15 becomes unable to swing in the horizontal position.

To release this non-swinging state, move the operating lever 3 to 18
It is sufficient to reverse the rotation by 0 degrees and shift from the state shown in FIG. 3 to the state shown in FIG.

Then, as the lifting member 5 moves downward against the biasing force of the coil spring 8, the locking part 11 is disengaged from the engaging part 11, and the fixing plate 15 becomes free as shown in FIG. be.

Therefore, in order to fix the legs 44 of a hen for artificial insemination, the small diameter shaft 4 is moved to the uppermost position using the operating lever 3 and the fixing plate 15 is moved before or after taking the hen out of the cage. Lifting member 5 to enable engagement
The legs 44 of the hen are placed on the top surface of the base 1, and the fixing plate 15 is swung until it comes into contact with the stopper 18. The legs 44 of the can be clamped and fixed (see FIG. 6).

On the other hand, in order to release this clamped and fixed state, the operating lever 3
The fixing plate 15 may be made free by the following steps.

Next, other embodiments will be described.

In FIGS. 1 to 9, reference numeral 19 denotes a housing-like base, on which the rotating shaft 2 has three bearings 21 provided at predetermined intervals on both longitudinal side walls and inside the base. (only one is shown).

On the rotating shaft 2, small-diameter shaft portions 4, which are the same control portions as in the embodiment described above, are formed at three locations (however, only one location is shown) at predetermined intervals.

Reference numeral 3 denotes an operating lever provided at one end of the rotating shaft 2.

Reference numeral 24 denotes an elevating member, which consists of a block-shaped support part 25 and a shaft-shaped locking part 26, and a slope 2 at the upper end of the locking part 26.
γ is formed.

This elevating member 24 is fitted and supported on the rotary shaft 2 so as to be positioned corresponding to the small diameter shaft portion 4 through a circular hole 6 having a diameter slightly larger than the diameter of the rotary shaft 2, which is transparently provided in the support portion 25. has been done.

Therefore, three lifting members 24 are provided, each of which is biased in the upward direction by a coil spring 8 wound around a protruding pin γ protruding from the inner bottom of the base 1. The upper part of the stop part 26 is connected to the upper surface of the base 19 and the three supports 3 vertically disposed at predetermined intervals on this upper surface.
1 and protrudes upward.

Reference numeral 15 denotes three fixed plates, which are swingably supported by the respective supports 31 by respective support shafts 14 fixed to one end of each plate.

-34 is a protrusion provided on the lower surface of the end of the support shaft 33 of the fixing plate 15, and this protrusion 34 has a sloped surface so as to engage with the locking part 26 when the fixing plate 15 is in a horizontal state. A notched engaging portion 35 is formed to have a slope shaped like 21.

Further, a surface of the protruding portion 34 extending toward the end surface of the fixed plate 15 is formed in a curved shape.

Reference numeral 36 denotes three stoppers vertically installed on the upper surface of the base 19 at predetermined intervals, and the positions of the upper end surfaces are set so as to maintain each of the fixed plates 15 in a horizontal state.

In this embodiment, by providing three sets of fixing plates 15, etc.,
The legs of the three wings can be fixed at the same time, and this embodiment is the same as the first embodiment, except that the configurations of the elevating member 24 and the protrusion 34 are different.

Therefore, the operation and the method of fixing the hen's legs are the same as in the first embodiment, so the explanation thereof will be omitted.

In addition, when using the chicken leg fixing device of each of the above embodiments, as shown in FIG. At the same time, the movable body 41 is supported by rollers 42 on the idle rail 40 laid on the upper surface of the cage 31, and the lower end of the movable body 41 is placed on the floor and is supported by a guide (not shown). If the movable body 41 is configured to be connected and movable along the front surface of the cage 31, and the bases 1 and 19 are fixed to the movable body 41, this is suitable when a large number of cages 3γ are arranged in series. .

With this configuration, as shown in FIG. 10, the legs 44 can be fixed in a state in which the hen 43 to be artificially inseminated is positioned on the front door 38 with its abdomen open, and the hen 43 In addition to being able to perform artificial insemination smoothly without violent movement, the bases 1 and 19 can be moved along the front surface of the cage 31, so artificial insemination can be carried out extremely efficiently for hens housed in a large number of cages 37. Insemination can be performed.

As is clear from the above explanation, according to the present invention, the legs of the chicken can be securely fixed with a simple operation, so that the artificial insemination work can be performed smoothly and efficiently, as well as accurately. This makes it possible to extend the egg-laying lifespan without damaging the hens' reproductive organs, and increase the fertilization rate. can play.

Various preferred embodiments of the present invention have been described above, but it goes without saying that the present invention is not limited to the above-mentioned embodiments. It may be constructed by bending the tip of the plate downward, and in addition to the small diameter shaft part, a shaft body having an arcuate or oval cross section may also be adopted as the control part, and furthermore, these control parts can be rotated. Of course, many modifications can be made without departing from the spirit of the invention, such as being able to protrude from the circumferential surface of the shaft.

[Brief explanation of the drawing]

The drawings show preferred embodiments of the present invention; FIG. 1 is a plan view, FIG. 2 is a partially omitted sectional view showing the lowermost position of the lifting member, and FIG. 3 is the lowermost position of the lifting member. 4 is a cross-sectional view showing the fixing plate in its free state; FIG. 5 is a cross-sectional view showing the fixing plate in a lockable state; and FIG. 6 is a cross-sectional view showing the fixing plate in its free state. 7 is a perspective view showing another embodiment, FIG. 8 is a partial perspective view showing the fixed plate in the free state, and FIG. 9 is a partially exploded view showing the inside of the base. The perspective view and FIG. 10 are side views showing one embodiment of use. 1... Base, 2... Rotating shaft, 3...
...Operation lever 4...Small diameter shaft part, 5...
・・Lifting member, 6・・・・・Circular hole, γ・・・Protrusion pin, 8・・・・Coil spring, 9・・・・・
・Square hole, 10... Slope, 11... Locking part, 12.13... Support plate, 14...
Support shaft, 15...Fixing plate, 16...Bulging portion, 1γ...Engaging portion, 18...Stopper, 19...・Base, 21... Bearing, 24... Lifting member, 25... Support part, 26... Locking part, 2γ...・Slope, 3
1...Support body, 34...Protrusion part, 35
...Engaging portion, 37...Cage, 38.
...Front door, 39...Feeding gutter, 40...
...Guide rail, 41...Moving object, 42
...Koro, 43...hen.

Claims (1)

[Claims] 1. A control section is formed at an appropriate location on a rotating shaft rotatably supported by the base so as to be located below the top surface of the base, and is displaced in the height direction when the rotating shaft is rotated by a predetermined angle. An elevating member elastically biased in the upward direction whose elevating movement is controlled by the rotation shaft is connected to the rotating shaft, and a locking portion is formed at the upper end of the lifting member, and this locking portion is connected to the upper surface of the base. On the other hand, the base has a fixed plate swingably supported at a position spaced upward from the top surface of the base by a predetermined distance, and the fixed plate has the locking plate to prevent the fixed plate from swinging. 1. A chicken leg fixing device, characterized in that the chicken leg fixing device has an engaging part that engages with the base plate, and is configured to clamp and fix the chicken leg between the base top surface and the fixing plate.