Opening and closing tongs

Abstract

This invention provides opening and closing tongs that can be operated with one hand and have a wider opening between the two arms than conventional tongs, allowing them to grip objects of different shapes and sizes, as well as larger objects. [Solution] The opening and closing tongs are characterized by having two arms 2, each consisting of a tip that forms a gripping portion 1 and an end portion having a connecting portion 4, and a finger insertion portion 3 integrally provided with the arms, located on a line connecting the centers of the respective tip and end portions of the arms and closer to the end portion, with a width wider than the width of the main body of the arm, including both the inside and outside of the line. The opening and closing tongs of this invention can be conveniently used in any setting where conventional tongs are used, such as schools, cooking areas where hygiene and safety are required, welfare facilities, factories, camps, cleaning and maintenance workplaces, and the fields of physicochemistry and medicine.

Description

Technical Field

[0001] The present invention relates to tongs.

Background Art

[0002] Patent Document 1 discloses tongs in which finger rings are provided on the outer sides of both arms, and by using the opening of the fingers, the arms can be opened and closed with one hand beyond the opening width defined by a leaf spring. Also, Patent Document 2 discloses tongs in which one ends of two pressing plates of the same size with finger insertion holes are movably connected, claw mounting plates are respectively attached near the other ends, claws are attached to the claw mounting plates so as to face each other, three or more fingers of one hand are passed through the finger insertion holes, and by moving the fingers, the two pressing plates can be opened and closed to grip an object.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the tongs of Patent Document 1 in which finger rings are provided on the outer sides of both arms, the opening width when widening the interval between the arms with one hand is limited to the maximum opening between the dorsal parts of the opposing fingers, so there is still a problem when trying to grip a larger object. Also, the tongs of Patent Document 2 have finger insertion holes provided in the pressing plate body and are opened and closed by moving three or more fingers, and also require claws at the tips, and there is a limit to widening the opening width as well.

[0005] The objective of this invention is to provide an opening and closing tong that can be operated with one hand and has a wider opening width between the two arms than conventional tongs, allowing for the gripping of objects of different shapes and sizes without changing the grip on the tongs, and enabling the gripping of larger objects as well. [Means for solving the problem]

[0006] The present invention is an opening and closing tong characterized by having two arms, each consisting of a tip that serves as a gripping portion and a terminal portion having a connecting portion, and a finger insertion portion integrally provided with the arms at a position closer to the terminal portion, on a line connecting the centers of the respective tip and terminal portions of the arms, and having a width wider than the width of the main body of the arms, including both the inside and outside of the line.

[0007] Furthermore, this invention is an opening and closing tong having a flat surface where the opposing inner portions of the finger insertion parts are parallel to each other. [Effects of the Invention]

[0008] The opening and closing tongs of this invention can be opened and closed with just the fingers of one hand, without relying on an elastic member, and the opening width between the two arms can be made even wider than conventional tongs. This allows for gripping objects of different shapes and sizes without having to change the grip on the tongs, and even larger objects. [Brief explanation of the drawing]

[0009] [Figure 1] This is a plan view of an embodiment of the opening and closing tongs of the present invention. [Figure 2] This is a plan view of an embodiment of another example of the opening and closing tongs of the present invention. [Figure 3] This is a plan view of yet another embodiment of the opening and closing tongs of the present invention. [Figure 4] This is a plan view of yet another embodiment of the opening and closing tongs of the present invention. [Modes for carrying out the invention]

[0010] The following examples will be described with reference to the attached drawings, but these are for illustrative purposes only and the present invention is not limited to them. [Examples]

[0011] In Figure 1, the two arms (2) each have a gripping portion (1) at their tip for grasping an object to be gripped and a connecting portion (4) at their end for connecting the two arms together. Near the end of each arm, there is a finger insertion portion (3) that is wider than the width of the main body of the arm in the plan view. The connecting portion is rotatably connected to the two connecting members (4) by a pivot pin (5).

[0012] The two arms (2) can be made of materials and have shapes that are appropriate for the shape, size, hardness, properties, and temperature of the object to be gripped. For example, the main body of the arms can be made of metal, plastic, ceramic, wood, bamboo, or paper. Suitable shapes include rods, flat plates, and those that are bent or curved to provide lightness and strength. The pair of arms can be symmetrical or asymmetrical.

[0013] The finger insertion section (3) allows you to insert your thumb into one side and the remaining fingers into the other, but you can insert any number of fingers, and any fingers can be used. It also doesn't matter which side is used for the thumb or which for the remaining fingers. Therefore, the shape of the finger insertion section (3) is not particularly limited, and in plan view it may be a circle, an ellipse, a polygon such as a square, or any other curved closed shape, or a combination thereof. Furthermore, the shape does not need to be completely closed; it may be partially broken. In addition, the shape of the pair of finger insertion sections (3) may be symmetrical or asymmetrical.

[0014] As shown in Fig. 1, the finger insertion part (3) is provided integrally with the arms on the line connecting the centers of the tip and the end of each arm and at a position closer to the end, including the inside and outside of the line connecting the centers of the tip and the end. By doing so, when opening both arms using the back of the finger inserted into the finger insertion part (3), the opening width of both arms when the distance between the fingers is maximally opened can be made larger compared to the case where finger rings are provided on the outside of each arm.

[0015] Fig. 2 shows another embodiment of the present invention, representing the case where the connecting part uses a leaf spring and rubber, plastic, leather, etc., but it is sufficient that the two arms are connected by some means.

[0016] Fig. 3 shows yet another embodiment of the present invention. By interposing a slide connecting member (7) between the connecting members (4) and connecting both ends of the slide connecting member (7) and the connecting member (4) with two pivot pins, it is possible for the arms of (2) to slide back and forth simultaneously while opening and closing.

[0017] Fig. 4 shows still another embodiment of the present invention. The inner portions of the finger insertion part (3) facing each other have flat portions that can be parallel and in close contact. By doing so, the shape and size of the entire tong can be made compact, and the opening width of both arms when opening both arms using the back of the finger inserted into the finger insertion part (3) can be further increased.

Industrial Applicability

[0018] The opening and closing tong of the present invention can be conveniently used at any site, such as industries using conventional tongs, for example, in cooking places where school, hygiene, and safety are also required, welfare facilities, factories, camps, cleaning and maintenance workplaces, and the fields of physics and medicine.

Explanation of Reference Numerals

[0019] 1 Holding part 2 Arm Three-finger insertion part Four connection parts and connecting members Five pivot pins Six connection parts such as leaf springs Seven slide connection materials

Claims

1. Opening and closing tongs characterized by having two arms, each consisting of a tip that serves as a gripping portion and a terminal portion having a connecting portion, and a finger insertion portion integrally provided with the arms on a line connecting the centers of the respective tip and terminal portions of the arms, and closer to the terminal portion, having a width wider than the width of the main body of the arm, including the inside and outside of the line.

2. The opening and closing tongs according to claim 1, having a planar portion where the opposing inner portions of the finger insertion parts are parallel.

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