KR20120090261A - Folding tools using the lever principle - Google Patents

Folding tools using the lever principle Download PDF

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Publication number
KR20120090261A
KR20120090261A KR1020110010600A KR20110010600A KR20120090261A KR 20120090261 A KR20120090261 A KR 20120090261A KR 1020110010600 A KR1020110010600 A KR 1020110010600A KR 20110010600 A KR20110010600 A KR 20110010600A KR 20120090261 A KR20120090261 A KR 20120090261A
Authority
KR
South Korea
Prior art keywords
force
handle
principle
lever
force acting
Prior art date
Application number
KR1020110010600A
Other languages
Korean (ko)
Inventor
강영원
이광원
Original Assignee
강영원
이광원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 강영원, 이광원 filed Critical 강영원
Priority to KR1020110010600A priority Critical patent/KR20120090261A/en
Publication of KR20120090261A publication Critical patent/KR20120090261A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/12—Hand shears; Scissors characterised by the shape of the handles
    • B26B13/14—Hand shears; Scissors characterised by the shape of the handles without gripping bows in the handle
    • B26B13/16—Hand shears; Scissors characterised by the shape of the handles without gripping bows in the handle spring loaded, e.g. with provision for locking the blades or the handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/26—Hand shears; Scissors with intermediate links between the grips and the blades, e.g. for remote actuation

Abstract

PURPOSE: A foldable tool using a principle of a lever is provided to apply large force to force acting parts with small force by applying a principle of a lever as handles are formed longer than the force acting parts. CONSTITUTION: A foldable tool using a principle of a lever comprises two bodies(10) and two extended handles(30). The two bodies are rotatably connected to a X-shape on a rotary shaft(17). Each body comprises a handle part(11) and a force acting part(12). The handle part is formed in one side of the body. The force acting part is formed in the other side of the body. If force is applied through the handle part, the force acting part applies force with a principle of a lever. One end of the extended handle is rotatably connected to one side of the force acting part in one body, and the middle part of the extended handle is slidingly connected to one side of the handle part in the other body.

Description

Folding tool using the lever principle

The present invention relates to a foldable tool using the lever principle, and more particularly, to configure the length of the handle portion relatively long compared to the force acting portion, so that the gap between the handle portion does not open to apply a small force by the lever principle with only one hand At the same time it is for the great power to work.

As is well known, the folding tool is rotatably connected with two bodies around the axis of rotation in the shape of an "X" shape so that one side forms a handle portion which the user grips and gives a force, and the other side has a short length compared to the handle portion. When the force is applied through wealth, it consists of a force action part where the force is acted on by the principle of the lever.

These folding tools are similar in principle but are classified into various types such as scissors, nippers, pliers, and pliers according to the shape and function of the force acting portion.

On the other hand, among the folding tools, shears such as pruning shears are required to use a lot of power, but when the branches are thick and moist, they are not easily cut, and women or the elderly who have insufficient grip have limitations when using shears. Therefore, it was inconvenient to use, such as not having to cut a branch at a time and shearing it several times.

Of course, there are also large pruning shears such that the handle portion is longer than the force portion, so that the force applied to the force portion is increased according to the principle of the lever, but the handle portion is gradually spaced toward the rear portion in proportion to its length. In the case of configuration, there was an inconvenience in that one hand could not be used at all and each hand held the handle part with both hands.

In addition, when using the pliers or pliers to loosen the rusted nut, there is a limit to the user's grip force, so you could not easily loosen the pliers or pliers.

The present invention has been proposed in view of such a point, while the length of the handle portion is relatively long compared to the force acting portion, so that the gap between the handle portion does not open so that a large force acts while using less force by the principle of lever only with one hand. It is to provide a folding tool using the lever principle to make it possible.

In order to solve this problem, the present invention is rotatably connected to the "X" shape around the axis of rotation to form a handle portion to give the user grip by one side, the other side is the principle of the lever when the force is applied through the handle portion Two bodies constituting a force action portion is a force acted by; And one end portion is rotatably connected to one side of the force acting portion of one body of the body, and the middle portion is slidably connected to one side of the handle portion of the opposite body of the body, respectively, to determine the magnitude of the force applied to the handle portion. It includes two extension handles that increase.

Preferably, each of the handle portion is formed with a guide protrusion protruding in the vertical direction, respectively, the intermediate portion of each of the extended handle is formed with an operating groove that can accommodate the guide protrusion forming portion of each handle portion without interference, respectively. The guide holes into which the guide protrusions are slidably fitted may be formed in upper and lower portions of the respective operation grooves, respectively.

Preferably, each of the guide holes may be formed to be inclined toward the side opposite to the opposite direction of each of the extension handle toward the free end of the extension handle.

According to the present invention, the length of the handle is relatively long compared to the length of the force acting portion so that a large force is applied to the force acting portion by the principle of the lever, and the grip can be held by one hand no matter how long the length is. It has an advantage that can be facilitated by using only to open the degree.

1 is a perspective view of a case where pruning shears are applied as an example of a tong-type tool according to the present invention;
Figure 2 is an explanatory view of a state of pruning shears according to the present invention.
Figure 3 is a diagram illustrating a state in which pruning shears according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the attached drawings.

The present invention relates to a folding tool that can be used easily with only one hand while allowing a large force to be applied while having a small force, and the present invention will be described with reference to the application of pruning shears as a folding tool.

The pruning shears applied to the present invention have two bodies 10 rotatably connected in an “X” shape with respect to the rotary shaft 17, and one side forms a handle part 11 that the user grips and gives a force. The other side is configured to form a force action portion 12 for cutting the object while the force is applied by the principle of the lever when the force is applied through the handle portion 11, the blade portion on the opposite side to the force action portion 12 Each of 13 is formed.

In addition, two extension handles 30 which are connected to the battery scissors and exert a force on the principle of the lever are provided, one end of each of the two extension handles 30 is formed with a hinge connection 34, Hinge connecting portions 14 are also formed on the outer side of the force acting portion 12 so that the hinge knobs 14 and 34 of the extension handle 30 and the force acting portion 12 are rotatably connected to each other by riveting or the like. .

Each handle portion 11 is formed with a guide protrusion 16 protruding in the vertical direction, each of the extension handle 30 can accommodate the guide protrusion forming portion of each handle portion 11 without interference. The operating grooves 35 are formed, respectively, and the upper and lower portions of each of the operating grooves 35 are formed with guide holes 36 into which the guide protrusions 16 are slidably fitted.

At this time, the hinge connection portion 14 and the guide protrusion 16 connected to the same extension handle 30 are configured to be paired with those provided in the different body 10, so that each extension handle 30 is approximately in the scissors Each is connected to form a parallel shape.

In addition, when retracting each extension knob 30, each guide hole 36 so as to minimize the resistance force between each guide projection 16 of the handle portion 11 and the guide hole 36 of the extension handle 30. ) Is preferably configured to be inclined toward the opposite side of each of the extension handle 30 toward the free end direction of each of the extension handle (30).

In the drawing, reference numeral 18 denotes a return spring for automatically returning each of the bodies 10 to their original positions by releasing a force in a state in which the extension handles 30 are retracted. Obviously, it is also possible to configure a separate ring for fixing in the closed state.

In this configuration, the battery shears are always maintained by the return spring 18, and the user holds the extension handle 30 with one hand to retract each extension handle 30 to its front end hinge connection portion ( 34 is rotated about each of the extension handle 30 is narrowed, between the guide hole 36 of each of the extension handle 30 is also narrowed while being slidably fitted here As the guide protrusion 16 moves along the guide hole 36, the gap between the handles 11 is also narrowed. When the gap between the handles 11 is narrowed, each body 10 moves the rotary shaft 17. As the center rotates, the opposite force acting portion 12 is also narrowed by the shearing action.

At this time, since the distance from the rotation shaft 17 to the end of the extension handle 30 is configured to be significantly longer than the distance from the rotation shaft 17 to the end of the force acting portion 12, each extension handle 30 by the principle of the lever Even if a small amount of force is applied to the force acting portion 12, a large force is applied to the battery operation.

That is, the force acting portion 12 is configured with the same size as the general battery scissors, but is provided with an extension handle 30 having a relatively longer length than the force acting portion 12, respectively, according to the ratio of the length of the The force can also be a large force is acting, and each of the extension handle 30 is opened to the extent that only one hand can be held, so if you hold each extension handle 30 with only one hand to tighten the force of the lever It is very convenient to use by being transmitted to the force acting portion 12 via the handle portion 11 by the principle.

In addition, since each guide hole 36 is configured to be inclined toward the opposite side of each of the extension knobs 30 toward the free end direction of each of the extension knobs 30, the first each of the extension knobs 30 is closed. Even if the giving direction is acted at right angles to each guide protrusion 16 of the handle portion 11, the direction in which each guide protrusion 16 is guided by the guide hole 36 becomes oblique so that the handle portion 11 Since the resistance between the guide protrusion 16 and the guide hole 36 of the extension handle 30 can be minimized, the scissors operation can be made more easily.

In the above, the clip-type tool according to the present invention has been described as an example of the scissors, but a clip-type tool such as a nipper, pliers, pliers, etc. can be made to have a large force even by applying a small force by the same principle as described above. In addition, there is an advantage that the interval between each of the extension handles can be gripped with one hand, convenient to use with one hand.

10: body 11: handle
12: power portion 13: blade
14,34: hinge connection portion 16: guide protrusion
17: axis of rotation 18: return spring
30: extension handle 35: working groove
36: guide hole

Claims (3)

Rotatingly connected in the shape of an "X" shape around the axis of rotation, one side of the handle grips the user to give a force, and the other side of the force acting force is applied by the principle of the lever when the force is applied through the handle portion Two bodies to form; And
One end is rotatably connected to one side of the force acting portion of the body of the body, the middle portion is slidably connected to one side of the handle portion of the opposite body of the body, respectively, to increase the magnitude of the force applied to the handle portion Foldable tool using the lever principle made by including two extension handles. The method of claim 1,
Each handle portion is formed with a guide protrusion protruding in the vertical direction,
The intermediate grooves of the extension handles are formed with operation grooves for accommodating the guide protrusion forming portions of the respective handle portions without interference, and the upper and lower portions of the respective operation grooves have guide holes into which the guide protrusions are slidably fitted. Folding tools using the lever principle, characterized in that each formed. The method of claim 2,
The guide hole is a folding tool using the lever principle, characterized in that formed toward the direction of the opposite end of the respective extension handles toward the free end direction of the extension handles.
KR1020110010600A 2011-02-07 2011-02-07 Folding tools using the lever principle KR20120090261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110010600A KR20120090261A (en) 2011-02-07 2011-02-07 Folding tools using the lever principle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110010600A KR20120090261A (en) 2011-02-07 2011-02-07 Folding tools using the lever principle

Publications (1)

Publication Number Publication Date
KR20120090261A true KR20120090261A (en) 2012-08-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110010600A KR20120090261A (en) 2011-02-07 2011-02-07 Folding tools using the lever principle

Country Status (1)

Country Link
KR (1) KR20120090261A (en)

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E601 Decision to refuse application