JPH06225662A - Opening tool - Google Patents

Abstract

PURPOSE:To obtain an opening tool for opening and treating the crack or incision of shell or animal, able to be easily inserted even by an inexperienced person, capable of uniformly keeping the force applied to claws, easily opening the crack, etc., and keeping the opened state, having light weight and excellent workability and producible at a low cost. CONSTITUTION:The tool is composed of a pair of pieces A, B each having a claw 2 made of stainless steel and a holding part 3 and a grip 5 made of a resin. The pieces are pivotally combined together and forced with inside springs 6, 6a to keep the claws 2 in contacting state. The claw 2 may have a stopper 11 and an antislip part 10 or the tool may be further provided with a fixing pin 8 and a pin fixer 9 to keep the claws in opened state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for opening a crack or a wound used for pearl cultivation or surgery.

[0002]

2. Description of the Related Art Conventionally, as a shell mouth opening machine for opening a shell of a shell, one made of stainless steel which is strong against rust such as salt is known. This stainless steel shell mouth machine was strong against rust and sold with a hard tool. In order to manufacture this stainless steel shell mouth machine, the nails of the forged material are driven into a flat spatula shape, the nails are made into steel by quenching, and the whole is finished by buffing. There is.

However, a stainless steel shell mouthpiece is expensive because of its large shape, large weight, high processing unit price and high quality material in the manufacturing process. Moreover, it is heavy in weight because it is made of all-metal for those who use it, so there was a drawback that it hurt their hands in the winter when pearl nucleation work is concentrated.

[0004]

DISCLOSURE OF THE INVENTION The present invention is intended to handle a large amount of work, is light in weight, does not feel the coldness of metal, improves work efficiency, and is easy to work with less fatigue. (EN) Provided is a device for opening which can be manufactured at low cost.

[0005]

In order to solve the above problems, the present invention provides a shell mouth machine having a conventional all-stainless steel structure with a resin support part and a metal claw at the tip of the support part. Provided at the other end, one side with the support part and the grip part of the same quality,
Both sides are pivotally attached around the fulcrum provided in the support part,
The grip portion is urged into a pair so that the two pieces of the claw are in contact with each other.

In the second invention, at least one piece of the claw is provided with a stopper. In the third invention, at least one piece of the claw is provided with a slip stopper. A fourth aspect of the invention is composed of a fixing pin that locks both pieces of the claw in an open state and a pin stop. A fifth aspect of the present invention is a method of simultaneously forming a claw, a resin support portion, and a grip portion.

[0007]

[Function] The strong metal claws are bent by the resin support and the resin grip, so that the mouth of the shell can be opened comfortably and the weight is light, which reduces hand fatigue. To work. The second aspect of the present invention has an effect of preventing the scratches from being inserted too much into the mouth of the shellfish. Third
In the invention, the anti-slip function provided on the claws works so that the claws inserted to open the mouth of the shell do not come off.

According to the fourth aspect of the present invention, the opening of the shellfish and the opening of the shell during opening work are maintained. In the fifth aspect of the invention, simultaneous simultaneous machining can be performed instantaneously in the manufacturing process, and a large amount of quenching machining can be performed at one time, which has the effect of reducing costs.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings.
2 to FIG. 3, 1 is an opening device for opening used for core insertion in pearl oyster K, and 2 is a surface steel made by quenching treatment made of stainless steel, and a square corner surface is formed into an R shape. The cut claws 3 are support parts that internally support the frame 2a of the resin claw 2 and can transmit force to the claws 2.
At the opposite end, there is a grip 5 of the same quality that can be gripped by the palm, and a fulcrum 4 is provided between the support 3 and the grip 5 so that it can be fitted with bolts and screws 4a on one side. A and B. It should be noted that one side A and B are the same as shown in FIG. 1 and can be mass-produced.

The mouth opening device 1 has a pair of one side A and one side B, and is urged outward by a structure of a spring 6 inside the grip portion 5, and the tab 2
The claws 2 are in contact with each other, and the claws 2 are opened by the grip force of the palm. The mouth opener 1 has the tip of the claw 2 at the pearl oyster K
When the support part 3 bends and the force is applied to the claw 2 by inserting a force into the grip 5, the mouth of the pearl oyster K is opened. It should be noted that inserting the claw 2 into the pearl oyster K requires skill and often scratches the shell K. However, if the claw 2 provided with the stopper of the present invention is used, work can be performed by a skilled person. You can

Further, a slip stopper 10 is provided on both upper and lower surfaces of the claw 2.
By providing the above, the inserted claw 2 can be surely opened, and the work as shown in FIG. 3 can be performed. Further, the spring 6 may be replaced and the push spring 6a may be used as the spring stopper 7a. The anti-slip 10 and the stopper 11 may be of a type in which the center is extruded by press working as shown in FIG. 4 or left and right as shown in FIG.

[0012] To insert a pearl into a nucleus, the shell K is opened and the nucleus is inserted. In order to keep the mouth open, an object was held in the mouth. In the present invention, work can be performed with the shell mouth opened by the structure of a ring-shaped fixing pin 8 and a pin stopper 9 for fixing the fixing pin 8 at the end of the grip 5 as shown in FIG. The fixing pin 8 and the pin stopper 9 are free to be engaged and locked with the tooth profile as shown in FIG. 7, and the tooth profile with the ring shown in FIG. It may be locked by engaging with each other.

In this shell mouth device 1, the claws 2 are made of metal and are subjected to quenching treatment so as to resist abrasion, but since only spatula-shaped parts are used compared to the conventional case, a large amount is added at a time. Can be quenched, is inexpensive, and can be mass-produced because one side A and B can be integrally processed just by delivering to a resin mold.
Further, although the mouth opener 1 of the present invention has been described as an embodiment used for opening a shellfish, the mouth opener 1 may be freely used for animals or surgery.

[0014]

EFFECTS OF THE INVENTION Since the force acting on the opening claw acts as a flexure due to the resin supporting portion and the grip portion, the force can be accumulated and the torque suitable for the stress of the crack can be transmitted. . The claws provided with stoppers have the effect that even an inexperienced person can easily position them. The anti-slipping of the claws can surely prevent cracks from being applied and improve work efficiency.

Further, if a fixing pin is used to hold the opened state, it can be held easily, and since there is no need for a jig for biting as in the conventional case, there is an advantage that work can be performed instantly, and work efficiency is improved. Can be raised. In addition, since the metal part is small even in the manufacturing process, it can be easily processed and transported, and a large amount of it can be processed even by quenching press processing of the claw part, and it is an inexpensive and lightweight product because it can be integrally processed with a resin mold. There is also an effect that can be provided.

[Brief description of drawings]

FIG. 1 is a plan view showing one side of an opening device.

FIG. 2 is a side view of the opening device.

FIG. 3 is a side view showing a state in use.

FIG. 4 is an explanatory view showing a stopper and a slip stopper.

FIG. 5 is an explanatory view showing another stopper and a slip stopper.

FIG. 6 is a side view that employs a fixing pin and a pin stopper.

FIG. 7 is a partially cutaway side view showing another fixing pin and a pin stopper.

FIG. 8 is a side view showing another fixing pin and a pin stopper.

[Explanation of symbols]

 1 Opener 2 Claw 3 Support part 4 Support point 5 Grip part 8 Fixing pin 9 Pin stop 10 Anti-slip 11 Stopper K shell

Claims (5)

[Claims] 1. A support part (3) made of resin, a metal claw (2) at the tip of the support part (3), and a grip part (5) of the same quality as the support part (3) at the other end. , With one side (AB)
Then, both sides (A) and (B) are rotatably pivoted about a fulcrum (4) provided on the support part (3), and the grip part (5) is brought into contact with the two pieces of the claw (2). ) Is urged to form a pair, an opening device. 2. The opening device according to claim 1, wherein at least one piece of the claw (2) is provided with a stopper (11). 3. The opening device according to claim 1, wherein at least one piece of the claw (2) is provided with a slip stopper (10). 4. The opening device according to claim 1, further comprising a fixing pin (8) and a pin stopper (9) for locking both pieces of the claw (2) in an open state. 5. An opening device for simultaneously forming a claw (2), a resin support part (3) and a grip part (5).