JPH0246712Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a blood sampling knife used for collecting blood from animals such as pigs, cows, or horses when they are slaughtered.

[Conventional technology]

When attaching a blood sampling hose made of a flexible material such as rubber, vinyl, or plastic to a blood sampling knife with a blade attached to one end of the gripping pipe, conventionally, a blood sampling hose made of a flexible material such as rubber, vinyl, or plastic The blood collection hose is simply fitted into the fitting part, or the blood collection hose is fitted into the fitting part of the gripping pipe, and then a suitable hose band is wrapped around the blood collection hose to tighten the blood collection hose.

[Problem that the invention attempts to solve]

However, in the former case, if the blood collection hose has a large inner diameter, it is easy to attach and detach the blood collection hose from the gripping pipe, but the blood collection hose is likely to come off from the gripping pipe during blood collection, and conversely, if the blood collection hose has a small inner diameter, it is easy to attach and detach the blood collection hose from the gripping pipe. , the binding force of the blood collection hose to the gripping pipe becomes large, and the blood collection hose does not easily come off from the gripping pipe, but it is not easy to attach and detach the blood collection hose to the gripping pipe, and it is difficult to grasp the blood collection hose in your hand. It is not uncommon for one's hand to slip due to applying too much force in the axial direction of the blade and be cut off by the blade, which is extremely dangerous. In this mounting method, as mentioned above, the bonding force of the blood sampling hose to the blood sampling knife and the ease of attaching and detaching are contradictory to each other, and they vary slightly depending on temperature, humidity, etc. It is difficult to simultaneously obtain strong and stable bonding force.

In the latter case, the blood collection hose is tightened with a hose band, which alleviates the above problem to some extent, but the operation of attaching and detaching the blood collection hose is that much more complicated, and part of the hose band has protrusions on the outer periphery of the blood collection hose. In addition to being a hindrance to the blood collection work, the hose band for the blood collection hose is also necessary because threads are formed on the outer circumferential surface of the blood collection hose to increase its strength without impairing the flexibility of the blood collection hose. Another problem is that the winding tends to be unstable and it is difficult to obtain strong bonding force.

[Means for solving problems]

The present invention was made to solve the above problems, and a blade body is attached to one end of the gripping pipe so as to protrude in the axial direction of the gripping pipe, and a blood collection hose is fitted to the other end of the gripping pipe. In the animal blood sampling knife, a thread groove for screwing the thread formed on the outer circumferential surface of the blood sampling hose is formed on the inner circumferential surface, and a fixing means for a tightening tool is formed on the outer circumferential surface. A tightening clamp is fitted around the outer periphery of the gripping pipe so as to be rotatable in the circumferential direction.

[Effect]

To attach the blood collection hose to the gripping pipe of the blood sampling knife, first fit the blood collection hose into the fitting part of the gripping pipe, then use the fastening means to attach the clamp to the tightening clamp, and then attach the clamp to the blood collection hose. The thread formed on the outer circumferential surface of the blood collection hose is screwed into the thread groove of the tightening clamp. This operation causes the blood collection hose to be tightly tightened to the gripping pipe.

Also, to remove the blood collection hose from the gripping pipe,
The tightening clamp is rotated in the opposite direction using the tightening tool to separate the tightening clamp from the blood collection hose, and then the blood collection hose is pulled out and removed from the gripping pipe.

〔Example〕

The accompanying drawings show an embodiment of the present invention, and reference numeral 1 in the drawings indicates a gripping pipe. This grip pipe 1
is made of, for example, a stainless steel pipe with a circular cross-sectional shape, and at one end thereof, a pair of wedge-shaped fixing pieces 1a are arranged opposite to each other by cutting the gripping pipe 1 at an acute angle in the center. and openings 1b are respectively formed in the side parts, and the blade body 2 is attached to the pair of fixed pieces 1a, 1a with the gripping pipe 1 with its width direction aligned with the diameter direction of the gripping pipe 1. It protrudes in the axial direction and is fixed by means such as welding. Furthermore, a fitting portion 1c is formed at the other end of the gripping pipe 1. This fitting part 1
C is for fitting a blood collection hose 3 made of a flexible material such as rubber, vinyl, or plastic and having a thread 3a on its outer circumferential surface to the gripping pipe 1, and its tip 1d is tapered. There is.

The blade 2 has an upper edge 2a with a straight edge, a lower edge 2b with a curved edge, and a sharp cutting edge 2c to facilitate piercing into the animal's body. The width of the base end of the blade 2 is larger than the diameter of the gripping pipe 1, and the shoulder of the blade 2 is slightly projected outward from the outer surfaces of the fixed pieces 1a, 1a.

Further, near the opening 1b of the gripping pipe 1, a pair of upper and lower flanges 4 and 5 are attached to an upper edge 2a and a lower edge 2b of the blade body 2.
It is set up correspondingly. These Tsuba 4,5
This prevents the hand from slipping and touching the upper edge 2a and lower edge 2b of the blade body 2.
The tip 4a of the side flange 4 is on the fitting part 1c side (right side in Figure 1), and the tip 5a of the flange 5 on the lower edge 2b side, where the elongated hole 5b is formed, is on the blade body 2 side. It is bent at a degree angle.

Further, reference numeral 6 denotes a tightening clamp, on its inner peripheral surface, a thread groove 6a into which the thread 3a provided on the outer surface of the blood collection hose 3 is screwed is carved at the same pitch as the thread 3a, Further, on the outer circumferential surface, a fastening hole (fastening means) 6b for fastening the protrusion 7a of the fastening tool 7 is provided.
is formed and is fitted to the outer periphery of the grip pipe 1 so as to be rotatable in the circumferential direction. Note that the entrance of the thread groove 6a is formed in a large outward-opening shape so that the thread 3a can easily enter therein, and the depth t (to be precise, The blood collection hose 3 is tightly tightened to the grip pipe 1 as the thread 3a is threaded into the thread groove 6a.

For reference, the dimensions of the embodiment shown in the figure are as follows: The outer diameter D of the gripping pipe 1 is 38 mm, the inner diameter of the blood collection hose 3 is 38 mm, and the tapered part 1 of the fitting part 1c.
Length l of d: 20 mm, inclination of tapered tip 1 d;
The width w of the tightening clamp 6 is 30 mm, and the slope of the thread groove 6a is 1/50, but is not limited to the above. Note that the degree of inclination of the tapered portion 1d is set in the range of 2/200 to 5/200, since the effect will be reduced if it is too large or too small.
Further, the slope of the thread groove 6a varies depending on the flexibility of the blood collection hose 3, etc., but is suitably about 1/100 to 3/100.

Next, the operation of the animal blood sampling knife according to the present invention constructed as described above will be explained.

To attach the blood collection hose 3 to the grip pipe 1 of the blood collection knife, hold the blood collection hose 3 in your hand and fit it into the fitting part 1c of the grip pipe 1 slightly beyond the tapered tip 1d. At this time, usually the blood collection hose 3
is fitted by rotating it in the direction in which the thread 3a advances (in the right direction if the thread 3a has a right-hand thread as shown in the figure), but the tip 1d of the fitting part 1c is tapered. Therefore, fitting the blood collection hose 3 is easy. After the blood collection hose 3 has been fitted into the fitting part 1c of the grip pipe 1 in this way, the tightening clamp 6 is moved along the grip pipe 1 to bring it closer to the blood collection hose 3, and as shown in FIG. , fit the protrusion 7a of the tightening tool 7 into the fixing hole 6b of the tightening clamp 6, attach the tightening tool 7 to the tightening clamp 6, and rotate the tightening clamp 6 by operating the tightening tool 7 to fit into the thread groove 6a. Screw in the thread 3a of the blood collection hose 3 and tighten the clamp 6.
screw onto the blood collection hose 3. As the tightening clamp 6 rotates, the tightening area of the blood collection hose 3 increases,
Moreover, since the pressing force of the blood collection hose 3 increases due to the slope of the thread groove 6a, the blood collection hose 3 can be strongly tightened to the grip pipe 1. When the tightening force reaches an appropriate level, the tightening tool 7 is removed from the tightening clamp 6, and the attachment of the gripping pipe 1 to the blood sampling knife is completed (see FIG. 4).

When it becomes necessary to remove the blood sampling hose 3 from the blood sampling knife, tighten the clamp 6 with the tightening tool 7.
After removing the tightening clamp 6 from the blood collection hose 3 by rotating it in the opposite direction, remove the gripping pipe 1 while rotating the blood collection hose 3 in the direction in which the thread 3a loosens.
The blood collection hose 3 is pulled in the axial direction of the gripping pipe 1 to remove it from the fitting part 1c of the gripping pipe 1, but since the blood collection hose 3 is relatively firmly fitted to the gripping pipe 1 only at the part beyond the tapered part 1d, It is easy to pull out the blood collection hose 3 from the pipe 1.

In addition, in the present invention, the structure of the blood sampling knife is arbitrary and is not limited to that shown in the figure. Furthermore, the tightening clamps, fastening means, etc. are not limited to those shown in the drawings, as described above, and can be modified in various ways.

[Effect of idea]

As explained above, in the animal blood sampling knife according to the present invention, the blade body is attached to one end of the gripping pipe so as to protrude in the axial direction of the gripping pipe, and the fitting part of the blood sampling hose is attached to the other end of the gripping pipe. In the formed animal blood sampling knife, a thread groove is provided on the inner circumferential surface to which the thread formed on the outer circumferential surface of the blood sampling hose is screwed,
Further, a tightening clamp, each having a fixing means for a tightening tool formed on its outer circumferential surface, is fitted onto the outer periphery of the gripping pipe so as to be rotatable in the circumferential direction. Since the blood collection hose is screwed into the gripping pipe to tighten it, the blood collection hose can be attached to the blood collection knife with strong bonding force, and therefore, the blood collection hose can be easily pulled from the blood collection knife during blood collection. It will not come off and cause work to be interrupted. Further, since the blood collection hose is finally tightened with the tightening clamp, the thickness of the gripping pipe can be made thinner, so that the blood collection hose can be attached and detached safely and quickly without danger. In addition, unlike a hose band, the tightening clamp does not partially protrude and get caught on the clothes of the worker, so it does not interfere with blood sampling work.

[Brief explanation of the drawing]

Fig. 1 is a side view of the animal blood sampling knife according to the present invention, Fig. 2 is a front view thereof, Fig. 3 is a partially cutaway side view of the blood sampling hose attached to the blood sampling knife, and Fig. 4. FIG. 5 is a half-sectional view showing how the blood collection hose is attached to the gripping pipe, and FIG. 5 is a front view showing how the tightening tool is attached to the tightening clamp. 1...Grip pipe, 1c...Fitting part, 2...Blade body, 3...Blood collection hose, 3a...Thread, 6...Tightening clamp, 6a...Thread groove, 6b...Fixing hole ( (fastening means), 7... tightening tool.

Claims (1)

[Scope of utility model registration request] An animal blood sampling knife in which a blade is attached to one end of the gripping pipe so as to protrude in the axial direction of the gripping pipe, and a fitting part for a blood collection hose is formed at the other end of the gripping pipe. A tightening clamp, which has a threaded groove formed on the outer circumferential surface of the gripping pipe to which the thread is screwed, and a fastening means for a tightening tool formed on the outer circumferential surface thereof, is fitted onto the outer circumferential surface of the gripping pipe so as to be freely rotatable in the circumferential direction. An animal blood sampling knife characterized by: