JP2569289B2 - Livestock ear tag wearer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a livestock ear tag mounting device, and more particularly, to an ear comprising a flat female member and a male member fitted into and engaged with the female member through a livestock earlobe. The present invention relates to a mounting device for mounting a target.

[0002]

2. Description of the Related Art Various types of mounting devices have been developed which are operated by holding with one hand an ear tag consisting of a flat female member and a male member which is inserted into and engaged with the female member through a livestock earlobe. However, the plunger, which pushes the male member and pierces the earlobe and engages with the female member, automatically separates from the male member and returns to the home position after the ear tag is attached from the safety aspect of the mounting work There are things that you try to do. The mounting device is a pistol-shaped body that can be gripped and held by one hand, a plunger that slides by rotating a lever, and a female that is arranged facing the plunger at a predetermined interval in the pushing direction of the plunger. The plunger pushes the coil spring while compressing it when the lever rotates, and separates from the male member by the elastic restoring force of the compressed coil spring after the mounting is completed. It is configured to return to the original position.

[0003]

By the way, in the mounting device having the above-mentioned structure, after the mounting of the ear tag is completed, the plunger pushing the male member is engaged with the female member and attached to the ear. The female member, which has been quickly retracted away from the male member, is thereby separated from the main body integrally with the male member and retained by the holding portion of the main body, and the mounting device is separated from engagement with the livestock. Therefore, even if livestock may be violent at the time of completion of ear tag mounting, the mounting device is detached from the livestock, and the mounting device is swung and harms workers and other livestock There is an operational advantage that the danger is eliminated.

[0004] However, in order to quickly release the above-described relationship between the livestock and the wearing device, the return speed of the plunger that pushes the male member is preferably high, and the plunger is quickly returned after the mounting is completed. For this purpose, it is preferable that the resilient force of the coil spring for urging the plunger is strong. Therefore, in consideration of work safety, a coil spring having a high elasticity may be used. Of course, the resiliency of the coil spring used is the maximum within a range in which the coil spring can be compressed by holding the mounting device in one hand and grasping the lever.

However, since the plunger to be automatically returned is stopped at the home position (predetermined position), it hits another object due to its structure, so that after the mounting is completed, the plunger is returned to the home position. A collision sound is generated when returning to the position. In addition, the collision sound is not only a short-wave metal sound generated by the plunger hitting another object, but also a sound generated by the collision is reverberated in the main body of the wearing device, and resonates as a larger sound. And since the above-mentioned collision sound occurs at the time of the ear tag mounting work, it will ring at the ear of the livestock, and the livestock that has endured the pain of the male member piercing the earlobe will occur at the same time as the completion of the ear tag mounting. There is a problem in that the user may be surprised by the harsh collision sound and be surprised, and an unexpected accident may occur.

The present invention has been made in view of the above-mentioned problems of the prior art, and has an object to automatically separate a plunger from a male member at the same time when the ear tag is completely mounted. It is an object of the present invention to provide a mounting device that can retreat and reduce a collision sound generated when returning to an origin position.

[0007]

In order to achieve the above-mentioned object, the present invention has a technical measure to provide a braking device in which a retreating speed of a plunger is separated from a male member and then reduced in a body constituting a mounting device. Means are provided. As the above-mentioned braking means, an air damper mechanism including a friction plate provided at the front end of the plunger and a receiving cylinder provided at the front end of the instrument body to which the friction plate is slidably fitted, or a portion other than the above. An air damper mechanism to be provided, or a structure in which the retreating plunger is braked by mechanical friction means to extremely reduce the speed at the time of returning to the origin.

[0008]

According to the above means, the male member is set on the tip of the plunger located at the origin position, the female member is set on the holding portion opposed to the plunger, and the main body is grasped with one hand, and the male member is held. When the lever was pulled so that the earlobe of the livestock was located between the female member and the lever, the plunger connected to the lever via the link member was pushed toward the female member and attached to the tip of the plunger. The male member is pierced through the earlobe by the penetrating rod of the member and fitted and engaged with the female member on the opposite side. After the male member is fitted and engaged with the female member, the plunger pushing the male member is quickly separated and retracted from the male member by the elastic force of the returning coil spring, and the plunger is moved to the ear of the livestock. The attached ear tag is released from the connection with the wearing device. Moreover, the plunger, which is automatically returned to the home position upon completion of mounting, has its return speed reduced after being separated from the male member by the action of the braking means, and when it reaches the home position, the impact generated is small, and the collision sound is reduced. The sound is lowered and the livestock is not surprised.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the drawings, A is a pistol-type main body formed so as to be gripped with one hand, and the main body A is made of a synthetic resin material or metal. It is molded with a material, and the male member b1 of the ear tag B is
A plunger 1 for pushing the plunger 1 is slidably mounted in the front and rear direction, and a holding part 2 for engaging and holding a female member b2 constituting an earmark B opposite to the plunger 1 at the tip of the body A. Are integrally connected via a connecting member 3,
Further, a braking means C composed of an air damper mechanism is attached to the tip of the plunger 1.

The plunger 1 is formed of a metal rod or a rigid synthetic resin rod. The plunger 1 is connected to a body A via a lever 4 and a link mechanism 5 which are rotatably supported by the body A. It is configured to be pushed.
The structure is such that one end of a small link 5a of a link mechanism 5 is pivotally supported by a pin 6 that rotatably supports the lever 4 with respect to the main body A with the lever 4 sandwiched from front and rear. 5a, the other end of the link mechanism 5 sandwiching the lever 4 from the front and back.
Is connected to one end of a large link 5b having a substantially rectangular shape by a pin 7, and the other end of the front and rear large links 5b is connected to the rear of the plunger 1 by a pin 8 to connect the rear of the plunger 1. A return coil spring 14 is resiliently mounted over the spring receiver 13 provided on the front side and the front inner surface of the main body A.

The plunger 1 is released from the pushing mechanism of the plunger 1 at a predetermined position (ie, when the male member is engaged and integrated with the female member of the earmark B), and the plunger 1 is automatically returned. A release mechanism 9 is attached across the main body A, the lever 4 and the link mechanism 5. The release mechanism 9 includes a guide rod 9a connected to a large link 5b of the link mechanism 5 by a pin 10.
Then, the spring ring 9b engaged with the hook portion 11 formed in the lower surface of the guide rod 9a and the spring ring 9b elastically engaged with the guide rod 9a are removed from the hook portion 11 of the guide rod 9a. The release frame 9c is fixed to the main body A while being substantially parallel to the plunger 1, and the rear surface of the release frame 9c (the front end of the spring ring elastically engaged with the guide rod). Surface facing the front) is cut forward and downward to form an inclined surface 12,
The spring ring 9c is configured so that both ends bent into a substantially C-shape in a plane are supported vertically by the lever 4 while being shifted vertically, so that the spring ring 9b exerts a clockwise force about the shaft support with the lever 4. Have been.

The braking means C provided at the tip of the plunger 1 includes a circular friction plate 15 screwed to the tip of the plunger 1 and a receiving cylinder in which the friction plate 15 is slidably fitted. An O-ring 17 is attached to the outer periphery of the friction plate 15 to increase the degree of close contact with the inner surface of the receiving cylinder 16 so that the function of the air damper is sufficiently exhibited. A set pin 18 is provided at the center of the front surface of the friction plate 15 for fitting and supporting the male member b1 of the earmark B.

A holding portion 2 connected to the main body A via a connecting member 3 is a male member which holds the female member b2 of the ear tag B in front of the friction plate 15 at the tip of the plunger 1 described above. It is held opposite to b1 and is held by a pressing plate 20 urged by a spring 19, and has a well-known structure which is configured to be easily detached from the holding portion 2 after the mounting is completed.
21 shows livestock ears.

The mounting operation of the mounting device constructed as described above will be described. First, as shown in FIG. 1, the male member b1 is fitted to the set pin 18 and set on the front side of the friction plate 15 at the tip of the plunger 1. A female member b2 is set on the holding portion 2 side, and the mounting device is gripped with one hand, and a finger is put on the lever 4 so that the ears of the livestock can be heard.
A preparation is made so that the mounting portion 21 is sandwiched between the male member b1 and the female member b2. When the lever 4 is pulled, the link mechanism 5
, The guide rod 9a of the plunger 1 and the release mechanism 9 is pushed forward, and the male member b1 sandwiches the ear 21 with the female member b2 and pierces the earlobe with the piercing rod of the male member b1 and holds it. The tip of the penetrating rod is fitted and engaged with the female member b2 held by the portion 2, and the mounting of the ear tag B is completed.

At this time, the guide rod 9a which has been pushed forward together with the pushing movement of the plunger 1 is resiliently engaged with the guide rod 9a when the mounting of the ear tag B is completed. When the engaging position of 9b abuts on the rear end face of the release frame 9c, the rear end face of the release frame 9c is a downwardly inclined surface 12 so that when the guide rod 9a is further pushed, the inclined surface becomes inclined. At 12, the spring ring 9b is guided and rotated in the counterclockwise direction, and is released from the hook 11 of the guide rod 9a. As a result, the retraction prevention of the plunger 1 urged in the retreating direction by the resilient force of the coil spring 14 is released, and the plunger 1 is pulled back backward by the resilient force of the coil spring 14, and the friction plate at the tip of the plunger 1 15 is apart from the male member b1 and the braking means C
Is drawn into the receiving cylinder 16. And plunger 1
When the friction plate 15 separates from the male member b1,
Until it reaches the entrance of the cylinder, it retracts quickly by the force of the coil spring 14, enters the receiving cylinder 16, and the outer periphery of the friction plate 15
Since it is drawn in while sliding on the inner peripheral surface of the plunger 16, the retreat speed is greatly reduced, reaches the bottom surface in the receiving cylinder 16, and the retraction of the plunger 1 is stopped.

Therefore, the speed at which the friction plate 15 hits the bottom surface of the receiving cylinder 16 is very low, so that the impact at the time of collision is small,
The generated collision sound is not a short metal sound but a soft and low sound. Therefore, even if the collision sound is generated at the ear of the livestock simultaneously with the completion of the mounting of the ear tag B, the livestock will not be surprised, thereby eliminating the risk of an unexpected accident.

[0017]

According to the present invention, there is provided a livestock ear tag wearing device according to the present invention.
According to the configuration shown in the above, the plunger automatically returns to the home position after the ear tag is attached, but the retreating speed is greatly reduced by the braking means, so the impact that occurs when stopping at the home position is small, and the collision sound is small. The bass is reduced. Thus, even if a collision sound is generated at the ear of the livestock at the same time as the completion of the mounting of the ear tag, the livestock will not be surprised, thereby eliminating the risk of an unexpected accident occurring. or,
When the braking means is an air damper mechanism and is provided at the tip of the plunger, the structure is simple, and the existing mounting device can be easily mounted with a simple improvement.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing one embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along line (2)-(2) of FIG.

FIG. 3 is an enlarged vertical sectional view taken along line (3)-(3) in FIG.

FIG. 4 is a longitudinal sectional side view showing a state where an ear tag is worn by operating a lever.

[Explanation of symbols]

 A: Body B: Ear tag C: Braking means 1: Plunger 2: Holder 4: Lever 15: Friction plate 16: Receiving cylinder

Claims (2)

(57) [Claims] 1. A mounting device for mounting an ear tag composed of a flat female member and a male member which is inserted into and engaged with the female member by penetrating an earlobe of a domestic animal, wherein the mounting device is a male member. A plunger that pushes the male member, and a holding portion that engages and holds the female member at a predetermined interval in the pushing direction of the plunger, and that pushes the male member at the same time when the ear tag is attached. A mounting device in which a jar separates and retreats from the male member by the resilience of a spring, wherein a braking means for reducing the retraction speed of the plunger after separating from the male member is provided, wherein the ear tag for livestock is mounted. vessel. 2. The air damper mechanism according to claim 1, wherein the braking means comprises a friction plate provided at a front end of the plunger and a receiving cylinder provided at a front end of an instrument body to which the friction plate is slidably fitted. Item 4. A livestock ear tag wearing device according to item 1.