Cutting Device With Connecting Rod power Transmission Structure

Abstract

A cutting device with a connecting rod power transmission structure comprises a cutter blade that rotates and cuts an external workpiece including concrete, a rotating shaft coupled to the cutter blade axis, a support body that rotatably supports the rotating shaft, a rotating shaft driving part that rotates the rotating shaft by the connecting rod power transmission structure, and a handle part consisting of at least one handle extending from one side of the support body and held and handled by a user, wherein the longitudinal center of the at least one handle is positioned on the same line as the cutting line of the cutter blade.

Description

Technology Field

[0001] The present invention relates to a cutting device with a connecting rod power transmission structure, and more specifically, to a cutting device with a connecting rod power transmission structure in which the durability of the saw blade is improved. Background Technology

[0003] Generally, when cutting metal and construction materials such as concrete or rebar, a circular saw type cutter is used to increase work speed and minimize deformation of the material.

[0004] This type of circular saw cuts materials by lowering the saw while the material is fixed; however, it is difficult to visually determine the cutting position during the operation due to burrs or fragments. Additionally, since the cutting position is determined by setting the material length, there was a problem with low precision in the cutting location. Furthermore, burrs or fragments are generated during the operation, posing a problem that requires their removal through a separate process.

[0005] Furthermore, since the control unit for lowering the circular saw blade is not aligned, cutting operations are performed with the blade slightly bent when pressed to lower it, which can cause the blade to break and lead to safety accidents. The problem to be solved

[0007] Therefore, the objective of the present invention is to provide a cutting device with a connecting rod power transmission structure that enables operation to be performed on a straight line so that the circular saw blade performing the cutting operation does not bend. means of solving the problem

[0009] A cutting device of a connecting rod power transmission structure according to the present invention for achieving the above objective comprises: a cutter blade that rotates and cuts an external workpiece including concrete; a support body that includes a rotating shaft coupled to the center of the cutter blade and rotatably supports the rotating shaft; a rotating shaft drive part that rotates and drives the rotating shaft by the connecting rod power transmission structure; and a handle part consisting of at least one handle extending from one side of the support body and held and handled by a user, wherein the longitudinal center of the at least one handle is positioned on the same line as the cutting line of the cutter blade. By positioning the handle that operates the cutting operation on the same line as the cutter blade, the cutter blade does not bend and therefore does not easily break even when the operation is performed, thereby improving the durability of the cutter blade and preventing safety accidents.

[0010] Here, it is desirable to further include a fragment prevention member that accommodates at least a portion of the cutter blade at a predetermined distance, so that fragments that may occur while performing the cutting operation do not fly to the user.

[0011] And, the above-mentioned fragment prevention unit is preferably configured to include a cutter blade cover unit that accommodates a portion of the upper side of the cutter blade; a blocking unit that is supported by the support body and has a plate surface in the transverse direction relative to the plate surface direction of the cutter blade, and a fragment blocking unit that has a through slot formed to allow the cutter blade to pass through along the longitudinal direction of the blocking unit, thereby preventing fragments that fly off separated from the cutter blade at the rear of the cutter blade's rotation and fragments that fly off from the workpiece from flying off to the user.

[0012] Here, it is preferable that the at least one handle comprises: an operating handle having a pressing portion for operating the rotary shaft member, extending from one side of the support body far from the cutter blade; an auxiliary handle connected to the operating handle to assist in the cutting operation; and a pressing handle formed by extending upward from the fragment blocking portion while supported on the lower side of the support body, so that various handles can be provided to allow for operation according to user convenience when performing the cutting operation.

[0013] In addition, it is desirable to further include a pressing fixing support member that is coupled with the above-mentioned pressing handle and extends in the opposite direction to the extension direction of the pressing handle, and is formed to press and fix the workpiece to be cut, so that cutting work can be performed with a cutter blade while pressing and fixing the workpiece.

[0014] Here, it is desirable to further include a movable part comprising a movable support part supported by the support body and a wheel rotatably coupled to the movable support part, as this can provide convenience to the user when horizontal movement is required along with downward cutting work while performing cutting work. Effects of the invention

[0016] According to the present invention, the cutter blade does not bend or break easily even when the handle operating the cutting operation is positioned in line with the cutter blade, thereby improving the durability of the cutter blade and preventing safety accidents.

[0017] In addition, it is possible to prevent debris that may be generated while performing cutting operations from flying towards the user, and it is effective to prevent debris flying from the cutter blade and debris flying from the workpiece from flying away from the cutter blade separated from the cutter blade at the rear of the cutter blade's rotation from flying towards the user.

[0018] In addition, when performing cutting operations, various handles can be provided to allow for operation according to user convenience, and there is an effect of being able to perform cutting work with a cutter blade while holding the workpiece in place by pressing it down.

[0019] In addition, it has the effect of providing user convenience when horizontal movement is required along with downward cutting while performing cutting operations. Brief explanation of the drawing

[0021] FIG. 1 is a perspective view of a cutting device of a connecting rod power transmission structure according to the present invention. Figure 2 is a diagram showing the arrangement of the handle and the cutter blade. Figure 3 is an example of a fragment blocking section. FIG. 4 is a control block diagram of a cutting device of a connecting rod power transmission structure. Figure 5 is a detailed exploded view of the cutting device of the connecting rod power transmission structure. Figure 6 is an explanatory diagram of the power transmission of the moving shaft. Specific details for implementing the invention

[0022] Hereinafter, a cutting device (1) of a connecting rod power transmission structure according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0023] It should be noted that the embodiments described below are not intended to limit the invention and may be implemented in various different forms, including various modifications, equivalents, or alternatives.

[0024] The features of the present invention and the resulting effects will become clearer with reference to the embodiments described in detail below, together with the accompanying drawings.

[0025] In describing the embodiments of the present invention, specific descriptions of known functions or configurations will be omitted unless actually necessary for describing the embodiments of the present invention. Furthermore, the terms described below are defined in consideration of the functions in the embodiments of the present invention, and these may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification.

[0026] Throughout the specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "electrically connected" with other components in between.

[0027] Furthermore, when a part is said to "include" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but rather may include additional components, and it should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0029] FIG. 1 is a perspective view of a cutting device (1) of a connecting rod power transmission structure according to the present invention, FIG. 2 is a diagram showing the arrangement of a handle part (40) and a cutter blade (10), FIG. 3 is an example diagram of a fragment blocking part (52), and FIG. 4 is a control block diagram of a cutting device (1) of a connecting rod power transmission structure.

[0030] The configuration of the cutting device (1) of the connecting rod power transmission structure is explained with reference to FIGS. 1 to 4.

[0031] A cutting device (1) of a connecting rod power transmission structure includes a cutter blade (10), a support body (20), a rotating shaft part (30), a handle part (40), a fragmentation prevention part (50), a pressing fixing support part (60), a moving part (70), and a battery (80).

[0032] The cutter blade (10) rotates and cuts an external workpiece containing concrete.

[0033] The support body (20) rotatably supports the rotation axis (22). The support body (20) includes a main body part (21) and a rotation axis (22).

[0034] The main body (21) is configured to support a cutter blade (10), a rotary shaft part (30), a handle part (40), a fragmentation prevention part (50), a pressing fixing support part (60), a moving part (70), and a battery (80). The shape of the main body (21) is not limited to any one and can be implemented in various shapes.

[0035] The rotation axis (22) is coupled to the axis of the cutter blade (10).

[0036] The rotating shaft member (30) can rotate the rotating shaft (22) using a connecting rod power transmission structure.

[0037] The handle portion (40) is formed by at least one handle that extends from one side of the support body (20) and is grasped and handled by the user. The handle portion (40) includes an operating handle (41), an auxiliary handle (42), and a push handle (43).

[0038] The operating handle (41) includes a pressing part (411) that operates the operation of the rotating shaft part (30).

[0039] The pressing operation part (411) may be configured to extend from one side of the support body (20) far from the cutter blade (10) to operate the rotating shaft operating part (30).

[0040] The auxiliary handle (42) may be connected to the operating handle (41) to assist in the cutting operation.

[0041] The push handle (43) can be formed by extending upward from the fragment blocking part (52) while being supported on the lower side of the support body (20).

[0042] The fragment prevention part (50) can accommodate at least a portion of the cutter blade (10) at a predetermined distance. The fragment prevention part (50) includes a cutter blade cover part (51) and a fragment blocking part (52).

[0043] The cutter blade cover portion (51) can accommodate a portion of the upper side of the cutter blade (10).

[0044] The fragment blocking section (52) includes a blocking body (521) and a through slot (522).

[0045] The blocking body (521) is supported by the supporting body (20) and may have a plate surface in the transverse direction relative to the plate surface direction of the cutter blade (10).

[0046] The through slot (522) can be formed so that the cutter blade (10) passes through along the longitudinal direction of the blocking body (521).

[0047] The pressing fixing support member (60) is coupled with the pressing handle (43) and extends in the opposite direction to the extension direction of the pressing handle (43), and can be formed to press and fix the workpiece. The pressing fixing support member (60) includes a fixing support body (61) and a movement prevention member (62).

[0048] The fixed support body (61) is combined with the push handle (43) and can be formed as a plate extending in the opposite direction to the extension direction of the push handle (43).

[0049] The movement prevention part (62) may be formed in a sawtooth shape at the extended end of the fixed support body (61). The movement prevention part (62) may have a pointed shape so that it can press and fix the object to be sheared.

[0050] The moving part (70) includes a moving support part (71) and a wheel (72).

[0051] The movable support member (71) can be supported on the support body (20).

[0052] The wheel (72) can be rotatably coupled to the movable support (71).

[0053] The battery (80) may store power. The battery (80) may be made of a rechargeable battery and may store power supplied from an external source.

[0054] The longitudinal center of at least one handle (40) is positioned on the same line as the cutting line of the cutter blade (10).

[0055] FIG. 5 is a detailed exploded view of the cutting device (1) of the connecting rod power transmission structure.

[0056] It is disassembled into multiple parts, and among them, the important parts are explained.

[0057] The spindle (59, Output Shaft) is designed in a hexagonal shape rather than a circular shape to prevent the blade from slipping.

[0058] The blade cover lever (56, Lock the hand wheel) and the blade cover (61, Protective Cover) allow the angle of the blade cover to be adjusted quickly and easily.

[0059] The right handle (5) and the left handle (9) may be integrated handles that allow the user to conveniently grip the machine at any angle.

[0060] Water and foreign substances that may enter the spindle (59, Output Shaft) can be prevented by the rubber cap (60, Soldering Cup).

[0061] The shaft (36, Connecting Shaft) is designed to have the axis of the machine positioned at the center of the machine using a shaft drive method. By positioning the axis of the machine at the center, the machine is subjected to less load, enabling smooth operation, and reduces heat generation from the motor, allowing the machine to be used for a long time.

[0062] The rotor (23) enhances the product's power through the strong and sturdy coils of the rotor. When the machine is in operation, improved working time can be provided by reducing the temperature rise of the rotor with a rotor fan specially designed to minimize heat generation of the product.

[0063] The housing (7, Casing) is designed to provide a smooth air circulation system and prevents the product's temperature from rising. It is made of a special material to prevent deformation of the housing.

[0064] The controller (soft starter, 8, Soft Start) can adopt a temperature rotational speed load protection system.

[0065] By using the auxiliary handle (77, Handle), the product can be naturally attached to the worker's body, allowing the product to be operated conveniently.

[0066] The carbon brush (15, Carbon Brush) can prevent deformation of the carbon and detachment of the coil wire that occurs at high temperatures.

[0067] Figure 6 is an explanatory diagram of the power transmission of the moving shaft.

[0068] The rotation of the motor (a) on the left rotates the primary gear of the motor (a), and this rotational force is transmitted to the central crankshaft (b, crank shaft), and then to the right bevel gear (c) to rotate the cutting blade and perform the work.

[0069] Conventional cutters rotate the cutting blade by transmitting power directly from a motor or by using a rubber chain.

[0070] Modifiable embodiments other than the above embodiments are described.

[0071] An air injection unit may be further included that is supported by a support body and injects air toward a cutter blade, that is, toward a work point for cutting the workpiece. It is preferable that an air injection control unit for operating the air injection unit be installed near the installation location of a push control unit. The air injection control unit may be formed as at least one of a button type, a rotary type, and a slide type to adjust the intensity of the air injection.

[0072] A water spraying unit may be further included that is supported by a support body and sprays water toward a cutter blade, that is, toward a work point for cutting the workpiece. It is preferable that a water spraying control unit for operating the water spraying unit be installed near the installation location of a push control unit. The water spraying control unit may be formed as at least one of a button type, a rotary type, and a slide type to adjust the intensity of the water spray.

[0073] A water spray unit that is supported by a support body and sprays water towards the cutter blade, that is, towards the work area where the workpiece to be sheared is cut, may be further included. Since dust is often generated during cutting operations, it may obstruct the user's view, and if the user inhales the dust, it may be harmful to the user's health; therefore, to prevent this, a water spray can be formed in the cutting work area to prevent dust from scattering.

[0074] It may further include a lighting unit that is supported by a support body and outputs light toward the cutter blade, that is, toward the work area where the workpiece to be sheared is cut. This allows the user to check the cutting area and perform the cutting operation while the cutting operation is in progress, thereby improving the efficiency of the cutting operation.

[0075] It may further include an unfolding cover portion that is supported by a support body and a handle and covers a cutting work area when unfolded. The unfolding cover portion is supported in an unfolded state while supported by the support body and the handle, and can be unfolded when a cutting operation is performed. Here, it may further include an unfolding drive portion that drives the unfolding cover portion to be in an unfolded state and an unfolded state. Additionally, it is preferable that the unfolding operation portion for operating the unfolding cover portion be installed near the installation location of the push operation portion. The unfolding operation portion may be formed as at least one of a button type, a rotary operation type, and a slide operation type to control the degree of unfolding.

[0076] It may further include a sensor that detects bending of the cutter blade. Additionally, it may further include a notification unit that indicates the state of the cutter blade being bent. This allows the user to adjust their posture or re-operate the handle so that the cutting operation is performed with the handle and the cutter blade aligned.

[0077] Due to the cutting device (1) of the above-described connecting rod power transmission structure, the cutter blade does not bend and does not break easily even when the handle operating the cutting operation is positioned in line with the cutter blade, thereby improving the durability of the cutter blade and preventing safety accidents.

[0078] In addition, it is possible to prevent debris that may be generated while performing cutting operations from flying towards the user, and to prevent debris flying from the cutter blade and debris flying from the workpiece from flying away from the cutter blade separated from the cutter blade at the rear of the cutter blade's rotation from flying towards the user.

[0079] In addition, when performing cutting operations, various handles may be provided to allow for operation according to user convenience, and cutting can be performed with a cutter blade while holding the workpiece in place by pressing it down.

[0080] In addition, it can provide convenience to the user when horizontal movement is required along with downward cutting while performing cutting operations.

[0082] The present invention is not limited to the appended claims and their equivalents. With respect to the various functions performed by the aforementioned components or structures, the terms used to describe such components are intended to correspond to any component or structure that performs (i.e., is functionally equivalent to) the specific function of the described component, even if it is not structurally identical to the disclosed structure performing a function in the exemplary embodiments of the invention illustrated herein, unless otherwise indicated.

[0083] Additionally, the following claims are incorporated into the detailed description, and each claim may exist independently as a separate exemplary embodiment. While each claim may exist independently as a separate exemplary embodiment, it should be noted that other exemplary embodiments may also include combinations of dependent or independent claims and dependent claims. Such combinations are proposed herein unless it is stated that a specific combination is not intended. Furthermore, even if this claim is not directly dependent on an independent claim, it is intended to include features of the claim for any other independent claim.

[0084] Although various exemplary embodiments have been disclosed, it will be apparent to those skilled in the art that various modifications and variations may be made to achieve some of the benefits of the concepts disclosed herein without departing from the spirit and scope of the invention. It will be apparent to those skilled in the art that other components performing the same function may be appropriately substituted. It should be understood that other embodiments may be used and that structural or logical modifications may be made without departing from the scope of the invention. It should be noted that features described with reference to specific drawings may be combined with features of other drawings, even in features not explicitly mentioned. Such modifications to the general concept of the invention are intended to be covered by the appended claims and their legal equivalents. Explanation of the symbols

[0085] 1: Cutting device of connecting rod power transmission structure 10: Cutter blade 20: Support body 21: Main body part 22: Rotation axis 30: Rotating Soccer East 40: Handle part 41: Control handle 411: Push control part 42: Auxiliary handle 43: Push handle 50: Fragment prevention part 51: Cutter blade cover part 52: Fragment blocking unit 521: Blocking main body 522: Penetrating Slot 60: Press-fixing support part 61: Fixing support main body 62: Movement Prevention Department 70: Moving part 71: Moving support part 72: Wheel 80: Battery

Claims

Claim 1 A cutting device having a connecting rod power transmission structure comprises: a cutter blade that rotates and cuts an external workpiece including concrete; a support body that includes a rotating shaft coupled to the center of the cutter blade and rotatably supports the rotating shaft; a rotating shaft drive part that rotates and drives the rotating shaft by the connecting rod power transmission structure; a handle part consisting of at least one handle extending from one side of the support body and held and handled by a user; and a fragmentation prevention part that accommodates at least a portion of the cutter blade at a predetermined distance from the cutter blade; wherein the fragmentation prevention part comprises a cutter blade cover part that accommodates an upper portion of the cutter blade. A cutting device of a connecting rod power transmission structure comprising: a blocking body supported by the support body and having a plate surface in a transverse direction relative to the plate surface direction of the cutter blade; and a fragment blocking part having a through slot formed to allow the cutter blade to pass through along the longitudinal direction of the blocking body; wherein at least one handle comprises: an operating handle having a pressing operating part extending from one side of the support body far from the cutter blade to operate the rotary shaft operating part; an auxiliary handle connected to the operating handle to assist in cutting operations; a pressing handle formed extending upward from the fragment blocking part while supported on the lower side of the support body; and a pressing fixing support part coupled to the pressing handle and extending in the opposite direction relative to the extension direction of the pressing handle, and formed to press and fix the workpiece to be cut; wherein the longitudinal center of the at least one handle is positioned on the same line as the cutting line of the cutter blade. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 A cutting device of a connecting rod power transmission structure according to claim 1, further comprising a movable part including a movable support part supported by the support body and a wheel rotatably coupled to the movable support part.

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