JP7324528B2 - tongs - Google Patents

Description

TECHNICAL FIELD The present invention relates to tongs used for picking up garbage.

Stainless steel is used as a construction material for tongs used for picking up garbage, but stainless steel tongs are relatively heavy and therefore unsuitable for long-term cleaning work.

Therefore, the applicant developed the following patent document 1.

Briefly describing this patent document 1, the proximal ends of a pair of clamping arms having clamping portions at their tip end portions are connected to each other to form a V-shaped or U-shaped body, and the clamping portions are connected to each other. The tongue is provided with a biasing portion that biases them away from each other, wherein the base ends of the pair of aluminum or aluminum alloy holding arms are connected via elastic synthetic resin hinge members The hinge member is configured as the biasing portion, and the clamping portion is configured by attaching a synthetic resin clamping member to the tip end portion of the pair of clamping arms, Since it is constructed using lightweight metal and lightweight synthetic resin, it has the advantage of being lightweight and excellent in handleability, and it is less painful to work for a long time.

Japanese Patent No. 6810474

The present invention relates to an improvement of the tongs of Patent Document 1. In addition to being lightweight and easy to handle, it is possible to easily attach highly durable pinching members to the tips of a pair of pinching arms. To provide tongs excellent in practicability in which garbage or the like can be easily picked up by sandwiching the pinching members.

The gist of the present invention will be described with reference to the accompanying drawings.

A pair of clamping arms 2 made of aluminum or aluminum alloy and having clamping portions 1 at their distal ends are connected to each other at their base ends to form a V-shaped body or a U-shaped body, and the clamping portion 1 is formed. A tong A having an urging portion 3 that urges the tongues in directions away from each other,
The pair of clamping arms 2 is formed of a rod-shaped body having a U-shaped cross section, and is provided with a concave streak portion 4 whose inner side is an open side in the length direction,
The holding part 1 is configured by fixing a holding member 5 to the tip of each of the pair of holding arms 2,
The pinching member 5 is made of a metal material having a U-shaped cross section that can be fixed by being fitted into the grooved portion 4. When the pinching member 5 is fitted into and fixed to the grooved portion 4 at the tip of the pinching arm 2, the pinching arm 2 is pulled out. and a forward protruding piece 7 protruding forward from the tip of the clamping arm 2. It relates to a tong characterized in that the part is configured as a gripping part 8 .

The pinching member 5 is formed by molding the metal plate P into a U-shaped cross-section that can be fixed by being fitted into the grooved portion 4. 2 is fixed by fitting into the recessed streak portion 4 at the tip of 2,
Both side free plate portions of the clamping member 5 are configured as the opposed projecting piece portions 6, and the projecting tip portions of the opposed projecting piece portions 6 are shaped so as to project inward from the opposed inner edges of the clamping arms 2. 2. The tong according to claim 1, wherein the inner projecting tip plate portion of the opposed projecting piece portion 6 is formed as the grip portion 8.

Further, the pinching member 5 is provided with a plate portion projecting forward from the distal end portion of the pinching arm 2, and this plate portion is configured as the forward projecting piece portion 7,
The protruding tip portion of the forward projecting piece portion 7 is bent toward the inner side of the gripping arm 2, and the bent protruding tip plate portion of the forward projecting piece portion 7 is configured as the grip portion 8. It relates to the tongue according to any one of claims 1 and 2.

The pinching member 5 is composed of a metal plate P, and the metal plate P is integrally provided with the forward projecting piece portion 7 projecting forward from the distal end portion of the pinching arm 2. The tongs according to any one of claims 1 to 3, characterized in that:

Since the present invention is constructed as described above, since the pair of holding arms are made of lightweight aluminum or aluminum alloy, they are lightweight and easy to handle. The design can be realized because it can be easily fixed by fitting.In addition, the metal pinching member is not only high in strength and reliability, but also firmly fixed to the pinching arm (concave part). The holding part of the invention can pinch (grab) an object with the protruding tip (gripping part) of the opposing protruding piece, or pinch (grip) an object with the protruding tip (gripping part) of the forward protruding piece. The tongs are extremely practical because they can be used in two ways depending on the object to be clamped (garbage, etc.).

Further, in the second aspect of the invention, the pinching member having the opposing protruding pieces (gripping portions) has a simple structure, and the tongue can be easily designed and realized, and the tongs have a more practical structure.

Further, according to the third and fourth aspects of the present invention, the pinching member having the tip projecting piece (gripping portion) can be simply constructed, and the tong can be easily designed and realized, and the tong has a more practical construction.

It is a perspective view which shows a present Example. FIG. 4 is a developed view of a metal plate for forming the sandwiching member of the present embodiment. FIG. 3 is an explanatory partial enlarged exploded perspective view showing the pinching member of the present embodiment and the mounting structure of the pinching member to the pinching arm. It is a partially enlarged perspective view showing a holding portion of the present embodiment.

Optimal embodiments of the present invention will be briefly described with reference to the drawings to show the action of the present invention.

The tongs A of the present invention, in which the pair of holding arms 2 are made of lightweight aluminum or aluminum alloy, are lightweight and easy to handle, and can be used for a long time, such as picking up garbage, without any discomfort.

Moreover, the pair of holding arms 2 has a holding portion 1 at the tip thereof, and the holding portion 1 is constructed by fixing a holding member 5 to the tip of each of the pair of holding arms 2 . However, the pair of pinching arms 2 is formed of a rod-like body having a U-shaped cross section and is provided with a grooved portion 4 having an open side in the longitudinal direction. It is composed of a U-shaped cross-sectional metal material that can be fixed by fitting it into the body.

Therefore, the pinching member 5 can be easily fixed by being fitted into the pair of pinching arms 2, and the pinching part 1 can be easily designed and realized. In addition to having high strength and excellent durability, it can be easily and strongly fixed to the clamping arm 2 (concave portion 4) by simple fixing means such as screwing.

In addition, the pinching member 5 of the present invention has an opposing protruding piece portion 6 which protrudes inwardly facing the pinching arm 2 when the pinching member 5 is fixed by being fitted into the recessed streak portion 4 at the tip portion of the pinching arm 2, and the tip portion of the pinching arm 2. A front protruding piece 7 protruding to the side is provided, and the protruding tip of the facing protruding piece 6 and the front protruding piece 7 is configured as a grip portion 8, so that the protruding tip of the facing protruding piece 6 It can be used in two ways: pinching (grasping) the object to be pinched with the part (gripping part 8) and pinching (grasping) the object with the protruding tip part (gripping part 8) of the forward protruding piece part 7. is. That is, for example, as in the embodiments described later, the gripping portion 8 of the opposing projecting piece portion 6 is suitable for gripping a large and thick object to be clamped, and the gripping portion 8 of the forward projecting piece portion 7 is suitable for gripping a small and thin clamping object. If a structure suitable for gripping an object is adopted, it can be used in two ways according to the size of the object to be clamped, making it practical.

A specific embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the tongue A of this embodiment is a V-shaped body (U ), and the hinge member 9 is provided with a biasing portion 3 for biasing the clamping portions 1 in a direction in which they are separated from each other.

Specifically, the holding arm 2 is made of aluminum or an aluminum alloy, and is composed of two equal-length rod-shaped bodies having a U-shaped cross section, and is provided with a grooved portion 4 in the longitudinal direction. The two clamping arms 2 are connected to the hinge member 9 so as to face each other so that the opening sides of the grooved portions 4 face inside.

The hinge member 9 is made of synthetic resin having elasticity, and is provided with two insertion holes 10 on the left and right sides. As a result, the hinge member 9 is provided in a bridged state between the base ends of the pair of clamping arms 2, and the hinge member 9 is flexed according to the clamping movement of the pair of clamping arms 2, and returns against this deflection. It is configured such that the holding portions 1 are elastically urged in the direction of separating from each other. That is, the elastic hinge member 9 itself is configured to function as the urging portion 3 .

More specifically, the holding portions 1 are separated from each other in a normal state by the biasing portion 3, and when the pair of holding arms 2 are moved to bring the holding portions 1 closer together, a hinge is formed. The member 4 is bent, and the restoring elasticity of the bent hinge member 4 urges the clamping portions 1 in the direction of separating from each other (so that the hinge member 4 functions as the urging portion 3). It is configured.

Further, the holding portion 1 of this embodiment is constructed by attaching a holding member 5 to the distal end portions of the pair of holding arms 2 .

The pinching member 5 of this embodiment is made of a metal material having a U-shaped cross section that can be fitted and fixed in the grooved portion 4, and is fitted and fixed in the grooved portion 4 at the tip of the pinching arm 2. At the same time, there are provided a facing protruding piece portion 6 protruding inward from the clamping arm 2 and a forward protruding piece portion 7 protruding forward from the tip of the clamping arm 2. A projecting tip of the portion 7 is configured as a grip portion 8 .

Specifically, the pinching member 5 is formed by bending a stainless metal plate P punched into a developed shape as shown in FIG. 2 by press bending or the like. More specifically, both (upper and lower) side portions in a direction orthogonal to the length direction (horizontal direction in FIG. 2) of the metal plate P are folded at right angles in the same direction via folding edges L1 indicated by dashed lines in the figure. By being bent, it is formed into a U-shaped cross-sectional body (see FIG. 1) that can be fitted and fixed in the concave streak portion 4, and the bent leading end sides of the bent free plate portions on both sides thereof serve as the opposing protruding piece portion 6. It is configured.

In addition, the clamping member 5 having a U-shaped cross section is fixed by being fitted into the recessed streaks 4 at the tip end portions of the pair of clamping arms 2 so that the inner side of the pair of clamping arms 2 faces the opening side. Both ends of the piece 6 are formed in such a shape that they protrude inward from the opposed inner edges of the clamping arms 2 . The protruding tip plate portion of the opposed protruding piece portion 6 is formed in an uneven tooth (jaggy tooth) shape over substantially the entire length thereof. (8A) (see FIGS. 1, 3 and 4). Since the gripping portion 8A has uneven teeth over a wide range, it is suitable for gripping a relatively large and thick object to be clamped (such as dust).

3, a threaded hole 13 is formed in an intermediate plate portion (opposing outer plate portion of the pinching arm 2) on the tip side of the pinching arm 2, as shown in FIG. On the other hand, a matching hole 14 that communicates with the screw hole 13 is provided in the center plate portion of the pinching member 5 (between the opposed protruding pieces 6 of the metal plate P constituting the pinching member 5) (through hole). ), the pinching member 5 is fitted into the grooved portion 4 of the pinching arm 2 by overlapping the outer surface of the pinching member 5 with the inner surface thereof, and the screw 11 is inserted through the screw hole 13 and the matching hole 14 that are communicated with each other. The nipping member 5 is fixed to the nipping arm 2 by fastening the nut 12 to it.

In addition, the pinching member 5 is fitted into the grooved portion 4 at one end in the longitudinal direction of the strip-shaped central plate portion of the metal plate P (the left end in FIG. 2). At the same time, a strip-shaped plate portion projecting forward from the tip portion of the clamping arm 2 (projecting outward from the center plate portion in the longitudinal direction of the center plate portion) is integrally projected. is configured as the forward protruding piece portion 7 .

Further, as shown in FIG. 2, the tip end edge of the opposed protruding piece portion 6 facing the forward protruding piece portion 7 is formed into an inclined edge that separates from the forward protruding piece portion 7 toward the tip end side. The forward protruding piece 7 is bent in the same direction as the opposing protruding piece 6 by way of the folded edge L2 so as to be along the inclined edge of the opposing protruding piece 6 that is bent at right angles to the plate portion. The front protruding piece portion 7 is bent so as to project obliquely from the tip portion of the holding arm 2 (see FIGS. 1, 3 and 4).

In addition, the protruding tip portion of the forward protruding piece portion 7 is bent toward the opposite inner side of the clamping arm 2 via the folding edge L3, and the bent protruding tip plate portion serves to grip the opposing protruding piece portion 6. It is formed in a shape protruding long inwardly of the pair of clamping arms 2 from the portion 8A. The tip edge of the bent protruding tip plate portion of the forward protruding piece portion 7 is formed in an uneven tooth shape (jaggy tooth shape). is configured as the grip portion 8 (8B) (see FIGS. 1, 3, and 4). Although the gripping portion 8B has a smaller range of concave-convex teeth than the gripping portion 8A, it is suitable for gripping a small, thin object to be pinched (sheet-like dust, etc.).

Therefore, the clamping portion 1 of this embodiment is configured so that two methods of use can be selected according to the size of the clamped object by the gripping portions 8A and 8B.

In this embodiment constructed as described above, since the pinching member 5 is made of metal, it is more durable and reliable than the above-mentioned Patent Document 1, which employs synthetic resin. It can be fixed to the clamping arm 2 with high strength. Also, since the pinching member 5 is made of stainless steel, it is somewhat heavier than the above-mentioned Patent Document 1, but since the pinching member 5 is a relatively small component, the weight does not increase so much. , resulting in a lightweight product.

Reference numeral 15 in the drawing denotes a handle member made of synthetic resin provided on the outer surface of the pair of holding arms 2 on the base end side.

It should be noted that the present invention is not limited to this embodiment, and the specific configuration of each component can be appropriately designed.

REFERENCE SIGNS LIST 1 clamping part 2 clamping arm 3 urging part 4 grooved part 5 clamping member 6 opposed protruding piece 7 forward protruding piece 8 gripping part A tongue P metal plate

Claims (4)

A pair of clamping arms made of aluminum or aluminum alloy and having clamping portions at their distal ends are connected to each other at their proximal end portions to form a V-shaped body or a U-shaped body, and the clamping portions are connected to each other. A tong provided with a biasing part that biases in a direction to separate,
The pair of clamping arms are composed of a rod-shaped body having a U-shaped cross section, and are provided with a concave streak portion whose inner side is an open side in the length direction,
The holding part is configured by fixing a holding member to the tip end of each of the pair of holding arms,
The clamping member is made of a metal material having a U-shaped cross section that can be fixed by being fitted into the grooved portion. and a forward protruding piece projecting forward from the tip of the clamping arm is provided, and the protruding tip of the opposing protruding piece and the forward protruding piece is configured as a gripping portion. tongs characterized by The clamping member is formed by molding a metal plate into a U-shaped cross section that can be fixed by fitting it into the recessed portion. It is fixed by fitting into the ridge,
Both side free plate portions of the clamping member are configured as the opposed projecting piece portions, and the projecting tip portions of the opposed projecting piece portions are formed in a shape projecting inward from the opposed inner edges of the clamping arms, 2. The tong according to claim 1, wherein the inner projecting end plate portion of the opposed projecting piece portion is configured as the gripping portion. The pinching member is provided with a plate portion projecting forward from the distal end portion of the pinching arm, and the plate portion is configured as the forward projecting piece portion,
A protruding tip of the forward protruding piece is bent toward the opposite inner side of the holding arm, and a bent protruding tip plate of the forward protruding piece serves as the gripping portion. , 2. 3. The clamping member is made of a metal plate, and the metal plate is integrally provided with the forward protruding piece protruding forward from the distal end of the clamping arm. The tongs according to any one of 1 to 3.

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