TW202003161A - Four-legs tweezers - Google Patents

Abstract

The present invention relates to a tweezers including two primary clamping legs, two connecting rods, two secondary clamping legs, and two extension springs. The two primary clamping legs are connected each other via an end, and the two connecting rods are pivotally connected to the two primary clamping legs, respectively. The two secondary clamping legs located between the two primary clamping legs and are pivotally connected to each other. The two secondary clamping legs are pivotally connected to the two connecting rods, respectively. Each extension springs is connected one of the primary clamping legs and one of the secondary clamping legs, wherein said primary clamping leg and said secondary clamping leg are on different sides. Normally, the two primary clamping legs maintain an opening status to make the extension springs that connected to the two primary clamping legs and the two secondary clamping legs of different sides slightly stretched. When clipping an item, just clamping the two primary clamping legs, which reduces the distance between the two primary clamping legs and the two secondary clamping legs of different sides. Therefore, the stretched extension springs is recovered and shortened, thereby pulling upwards and pivoting the two secondary clamping legs. In this way, bottom tips of the two primary clamping legs and bottom tips of the two secondary clamping legs move toward the center from four directions to clamping the item, and the clamping by four clamping legs is stable and effectively prevents the item from falling off.

Description

Four-claw tweezers

The invention relates to a pair of tweezers, in particular to a pair of tweezers for holding electronic components.

In today's society, the relatively small nature of the tweezers' gripping part is often used to grip objects that cannot be stably held by ordinary people; the tweezers of the prior art specifically include two gripping arms, and the tops of the two gripping arms are connected for use. When the user presses the two clamping arms, the bottom ends of the two clamping arms can approach each other to clamp the object.

However, the shortcoming of the prior art tweezers is that when the shape and surface of the clamped object are smooth, the user only has two contact points (the bottom ends of the two clamp arms) in the process of clamping the object. The instability or the gripping point is relatively shifted, which often causes the gripped object to fall off.

In particular, when tweezers are used to pick up small electronic components in the process of electronic components, such as when used in radio frequency (RF) processes, soldering irons or hot air guns are used for soldering, or used to grab surface-mounted components ( SMD, surface-mount device), it will grab surface-mounted components to match; therefore, in the process of electronic components, it is necessary not only to sandwich an object with a very small body, but also to sandwich the object for various operations, or even a little Press the clamped object firmly on the circuit board, etc., so in the case where the force is not stable, it is easy to accidentally throw the component or cause the component to be blown away by the hot air gun.

Therefore, the tweezers of the prior art need to be improved.

In view of the aforementioned shortcomings and deficiencies of the prior art, the present invention provides a four-claw tweezers, which allows the user to be less likely to fall off when gripping objects.

In order to achieve the above-mentioned object of the invention, the technical means adopted in the present invention is to design a four-claw tweezers, which includes two main clamping arms, two connecting rods, two auxiliary clamping arms and two extension springs. The opposite ends of each main clamping arm are respectively a coupling end and a main clamping end, and the coupling ends of the two main clamping arms are connected. Each main clamping arm is provided with a connecting portion, the connecting portion is located between the coupling end and the main clamping end, and is adjacent to the coupling end. The two connecting rods are respectively pivotally arranged on the two main clamping arms. The opposite ends of each connecting rod are respectively a first end and a second end, and the first end of each connecting rod is pivotally disposed on the corresponding main clamping arm. The two auxiliary clamp arms are located between the two main clamp arms and the two auxiliary clamp arms are pivotally arranged with each other. The opposite ends of each sub-clamp arm are a pivoting end and a sub-clamping end, respectively, and the pivoting end of each sub-clamping arm is pivotally arranged at the second end of the corresponding connecting rod. When the two main clamping arms are clamped by an external force, the path for driving the two auxiliary clamping arms to clamp is perpendicular to the path of the two main clamping arms. The two tension springs are respectively connected to the two main clamping arms, and are respectively connected to the two auxiliary clamping arms. One end of each tension spring is connected to the connecting portion of one of the main clamp arms, and the other end of each tension spring is connected to the pivoting end of the auxiliary clamp arm pivotally connected to the other main clamp arm.

The advantage of the present invention is that under normal conditions, the two main clamp arms themselves will maintain a certain opening angle, and the opening angle will cause the tension springs connected to the main clamp arm and the auxiliary clamp arm on different sides to be slightly pulled When you want to grab the item, the user only needs to press the two main clamp arms. At this time, because the distance between the main clamp arm and the auxiliary clamp arm on different sides is shortened, the tension spring will return to its original length and move upward. Pull the sub-clamp arm, so that the two sub-arms will automatically pivot to make the sub-clamping ends of the two sub-arms close to each other, thereby the main clamping end of the two main clamp arms and the two sub-arms The secondary clamping end will move closer to the center from four directions to clamp the object, and clamping the object by the four clamping arms can achieve the effect of stable clamping to prevent the object from falling off easily; The general tweezers can be operated in the same way to achieve the purpose of the invention of stably clamping objects through four clamping arms.

Further, each of the main clamping arms is in the form of a long flat plate and the width is gradually reduced from the joint end toward the main clamping end.

Further, wherein each of the sub-clamping arms is a long flat plate shape and the width is tapered from the pivoting end toward the sub-clamping end, and the two sub-clamping ends of the two sub-clamping arms are bent to extend toward each other .

Further, the four-claw tweezers further include four protective sleeves respectively sleeved on the main clamping ends of the two main clamping arms and the auxiliary clamping ends of the two auxiliary clamping arms.

Further, wherein the two main clamping arms and the two auxiliary clamping arms are made of metal, and the protective sleeves are made of plastic.

In the following, in conjunction with the drawings and preferred embodiments of the present invention, the technical means adopted by the present invention to achieve the intended purpose of the invention will be further described.

Please refer to FIGS. 1 and 2. The four-claw tweezers of the present invention include two main clamping arms 10, two connecting rods 20, two auxiliary clamping arms 30 and two extension springs 40.

Please refer to FIG. 2, FIG. 3 and FIG. 5, the opposite ends of each of the aforementioned main clamping arms 10 are respectively a coupling end 11 and a main clamping end 12, and the coupling ends 11 of the two main clamping arms 10 are connected, And the distance between the two main clamping arms 10 gradually increases from the joint end 11 to the main clamping end 12. Each main clamping arm 10 is provided with a connecting portion 13 which is located between the coupling end 11 and the main clamping end 12 and is adjacent to the coupling end 11. Specifically, the coupling end 11 of each main clamp arm 10 is a plane, that is, the two main clamp arms 10 are combined in a one-face manner (as shown in FIG. 5 ). The connecting portion 13 is not located on the plane of the coupling end 11, but is adjacent to the plane, in other words, the connecting portion 13 is located where the two main clamping arms 10 are spaced apart from each other, but not where the two main clamping arms 10 are connected to each other Office.

In this embodiment, each main clamping arm 10 is in the form of a long flat plate with a width gradually decreasing from the coupling end 11 toward the main clamping end 12 (as shown in FIG. 3 ), so as to facilitate gripping of objects. And the main clamp arm 10 is made of metal. However, the shape and material of the main clamp arm 10 are not limited to the foregoing. For example, the main clamp arm 10 may be made of plastic.

The aforementioned two connecting rods 20 are pivotally mounted on the two main clamping arms 10 respectively. The opposite ends of each connecting rod 20 are a first end 21 and a second end 22 respectively. Each connecting rod 20 is pivotally mounted on the corresponding main clamp arm 10 with the first end 21.

The aforementioned two sub-clamp arms 30 are located between the two main clip arms 10 and the two sub-clamp arms 30 are pivotally arranged with each other. The opposite ends of each sub-clamp arm 30 are a pivot end 31 and a sub-clamp end 32 respectively. Each sub-clamp arm 30 is pivotally mounted on the second end 22 of the corresponding connecting rod 20 with the pivot end 31. And when the two main clamping arms 10 are clamped by an external force, the path for driving the two auxiliary clamping arms 30 to clamp is perpendicular to the path of the two main clamping arms 10, specifically, the two auxiliary clamping arms 30 are When the two main clamping arms 10 are clamped by external force, the path between the two auxiliary clamping arms 30 is perpendicular to the path between the two main clamping arms 10.

In this embodiment, each sub-clamp arm 30 is a long flat plate shape and the width is tapered from the pivoting end 31 toward the sub-clamp end 32, and the two sub-clamp ends 32 of the two sub-clamp arms 30 are bent toward each other The extension can reduce the distance between the two clamping ends 32 of the two clamping arms 30, thereby facilitating the effect of clamping the objects by the two clamping arms 30 with a smaller pivot angle. In addition, the two sub-arms 30 are made of metal. However, the shape and material of the sub-clamp arm 30 are not limited to the foregoing, for example, the sub-clamp arm 30 may also be made of plastic material.

The aforementioned two extension springs 40 are respectively connected to the two main clamping arms 10, and the two extension springs 40 are respectively connected to the two auxiliary clamping arms 30. One end of each tension spring 40 is connected to the connecting portion 13 of one of the main clamp arms 10, and the other end of each tension spring 40 is connected to the pivot end 31 of the sub-clamp arm 30 pivotally connected to the other main clamp arm 10. In other words, it is assumed that the two main clamping arms 10 are respectively a first main clamping arm 10A and a second main clamping arm 10B, and the two auxiliary clamping arms 30 are respectively a first auxiliary clamping arm 30A and a second auxiliary clamping arm 30B. The first main clamping arm 10A is connected to the first auxiliary clamping arm 30A through one of the connecting rods 20, and the second main clamping arm 10B is connected to the second auxiliary clamping arm 30B through the other connecting rod 20. The two ends of one extension spring 40 are respectively connected to the connecting portion 13 of the first main clamp arm 10A and the pivot end 31 of the second sub-clamp arm 30B, and the two ends of the other extension spring 40 are respectively connected to the second main The connecting portion 13 of the clamp arm 10B and the pivot end 31 of the first sub-arm arm 30A. Each tension spring 40 pulls the main clamp arm 10 and the sub clamp arm 30 connected thereto close to each other.

As shown in FIG. 2, in this embodiment, the manner in which each tension spring 40 connects the main clamp arm 10 and the sub-clamp arm 30 is tied to the pivotal connection between the connecting portion 13 of the main clamp arm 10 and the sub-clamp arm 30 Each end 31 is provided with a through hole, and the two ends of the tension spring 40 are hooked in the two through holes. But not limited to this, it can also be connected by other methods.

Please refer to FIG. 3 and FIG. 5, when the present invention is used, under normal conditions, the two main clamping arms 10 themselves will maintain a certain opening angle, and the opening angle will cause the main clamping arms 10 connected to different sides The tension spring 40 of the auxiliary clamp arm 30 (the first main clamp arm 10A and the second auxiliary clamp arm 30B, or the second main clamp arm 10B and the first auxiliary clamp arm 30A) is slightly pulled apart. In other words, the elasticity of the two main clamping arms 10 themselves is greater than the elasticity of the two extension springs 40.

Please refer to FIG. 4, and the user only needs to press the two main clamping arms 10 to grasp the items. At this time, since the distance between the two main clamp arms 10 is shortened, the distance between the sub clamp arms 30 located inside the main clamp arm 10 is also shortened, so the distance between the main clamp arm 10 and the sub clamp arms 30 on different sides is shortened, so the original The tension spring 40 that is pulled apart will return to its original length and pull the auxiliary clamp arm 30 upward. As a result, the two sub-clamp arms 30 and the connecting rod 20 will automatically pivot to bring the sub-clamp ends 32 of the two sub-clamp arms 30 closer together, whereby the main clamping ends 12 of the two main clamp arms 10 and the two sub-clamps The auxiliary clamping end 32 of the clamping arm 30 will move closer to the center from four directions to clamp the object. The four clamping arms 10 and 30 are used to clamp the object to achieve a stable clamping effect to prevent the object from falling off easily. The invention only needs to operate and press the two main clamp arms 10 in the same way as the normal tweezers, so as to achieve the object of the invention of stably clamping objects through the four clamp arms 10 and 30.

In addition, in other embodiments, the present invention further includes four protective sleeves respectively sleeved on the main clamping ends 12 of the two main clamping arms 10 and the auxiliary clamping ends 32 of the two auxiliary clamping arms 30. In this embodiment, the protective sleeves are made of plastic materials, so that even if the main clamp arm 10 and the auxiliary clamp arm 30 are made of metal, the electronic components with insulation requirements can also be clamped through the plastic protective sleeve (for example, applications For RF fine-tuning). But not limited to this, the protective sleeve can also be changed to other materials as required.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed in the above as preferred embodiments, it is not intended to limit the present invention. As a general knowledge person, within the scope of not departing from the technical solution of the present invention, when the technical contents disclosed above can be used to make some alterations or modifications to equivalent equivalent embodiments, any content that does not depart from the technical solution of the present invention is based on this Any simple modifications, equivalent changes, and modifications made to the above embodiments by the technical essence of the invention still fall within the scope of the technical solution of the present invention.

10‧‧‧Main clamping arm 10A‧‧‧First main clamping arm 10B‧‧‧Second main clamping arm 11‧‧‧Combined end 12‧‧‧Main clamping end 13‧‧‧Connecting part 20‧‧‧ Rod 21‧‧‧First end 22‧‧‧Second end 30‧‧‧Sub clamp arm 30A‧‧‧First sub clamp arm 30B‧‧‧Second sub clamp arm 31‧‧‧Pivot end 32‧‧ ‧Auxiliary clamping end 40‧‧‧ Tension spring

Fig. 1 is a perspective external view of the present invention. 2 is an exploded view of the device of the present invention. 3 is a schematic front view of the main clamp arm of the present invention before pressing. 4 is a schematic front view of the main clamp arm of the present invention after being pressed. 5 is a schematic side view of the main clamp arm of the present invention before pressing.

10‧‧‧Main clamp arm

11‧‧‧Combined end

12‧‧‧Main clamping end

13‧‧‧ Connection

20‧‧‧Link

21‧‧‧First

22‧‧‧The second end

30‧‧‧Sub clamp arm

31‧‧‧Pivot

32‧‧‧ Vice clamping end

40‧‧‧ Tension spring

Claims (5)

A four-claw tweezers comprising: two main clamping arms, the opposite ends of each main clamping arm are respectively a coupling end and a main clamping end, the coupling ends of the two main clamping arms are connected; each of the main clamping arms A connecting portion is provided on the connecting portion between the connecting end and the main clamping end, and adjacent to the connecting end; two connecting rods, which are respectively pivotally arranged on the two main clamping arms, each of the connecting rods The opposite ends are respectively a first end and a second end, the first end of each connecting rod is pivotally arranged on the corresponding main clamping arm; two auxiliary clamping arms are located between the two main clamping arms and The two sub-clamp arms are pivotally arranged with each other, and the opposite ends of each sub-clamp arm are respectively a pivot end and a sub-clamp end, and the pivot end of each sub-clamp arm is pivotally arranged on the corresponding link Of the second end, and when the two main clamping arms are clamped by an external force, the path for driving the two auxiliary clamping arms to clamp is perpendicular to the path of the two main clamping arms; and the two tension springs, which The two main clamping arms are respectively connected to the two auxiliary clamping arms, one end of each tension spring is connected to the connecting portion of one of the main clamping arms, and the other end of each tension spring is connected to the other The pivoting end of the auxiliary clamp arm pivotally connected to the main clamp arm. The four-claw tweezers according to claim 1, wherein each of the main clamping arms is a long flat plate shape and the width is gradually reduced from the joint end toward the main clamping end. The four-claw tweezers as described in claim 1 or 2, wherein each of the sub-clamp arms is a long flat plate shape and the width is tapered from the pivoting end toward the sub-clamp end, and the two of the two sub-clamp arms The secondary grip ends extend curvedly towards each other. The four-claw tweezers according to claim 1 or 2, further comprising four protective sleeves respectively sleeved on the main clamping ends of the two main clamping arms and the auxiliary clamping ends of the two auxiliary clamping arms . The four-claw tweezers according to claim 4, wherein the two main clamping arms and the two auxiliary clamping arms are made of metal, and the protective sleeves are made of plastic.

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