Electric saw comprising blow means

Abstract

An embodiment of the present invention relates to an electric saw comprising a blow means that removes dust generated during a cutting operation so as to increase work efficiency. According to one embodiment of the present invention, the electric saw comprising a blow means is provided, the electric saw comprising: a rotary saw for cutting a workpiece; a power means for rotating the rotary saw; a protective cover for protecting from the rotary saw; and the blow means positioned on the protective cover, wherein the blow means ejects, toward the front of the rotary saw, air current generated by means of a fan rotated by the power means.

Description

Power saw with blower

[0001] An embodiment of the present invention relates to an electric saw including a blow means capable of removing dust generated during cutting operation to improve work efficiency.

[0002]

[0003] In general, a power saw is a cutting tool used to cut workpieces such as wood or metal, and the workpiece is cut by moving a rotating circular saw along the cutting line of the workpiece.

[0004] In this case, the worker must carefully look at the cutting line drawn on the workpiece and align the saw blade of the electric saw accordingly to cut the desired area. However, during processing, the area around the cutting line becomes obscured by dust generated by the rotating saw blade, making it difficult for the worker to check the cutting line.

[0005] When the cutting line is no longer visible, the operator must remove the surrounding dust while working, which reduces work efficiency. Furthermore, each time the power saw is stopped, the blade must be re-aligned to the original cutting line, making it difficult to reposition, potentially resulting in poor cutting results.

[0006]

[0007] An embodiment of the present invention provides an electric saw including a blow means capable of removing dust generated by a rotary saw during operation.

[0008] And, an embodiment of the present invention is to provide an electric saw including a blow means for indicating a cutting position to an operator so that the operator can cut to a desired position.

[0009]

[0010] According to one embodiment of the present invention, an electric saw including a rotary saw for cutting a workpiece; a power means for rotating the rotary saw; a protective cover for protecting the rotary saw; and a blow means positioned on the protective cover, wherein the blow means blows an air current generated by a fan rotated by the power means toward the front of the rotary saw.

[0011]

[0012] It may further include a flow path connecting the blow means and the fan.

[0013] The above fan may be located within the housing in which the above power means is located.

[0014] A guide may be installed between the housing and the fan to prevent airflow generated from the fan from being discharged outside the housing.

[0015] The above rotary saw may further include a laser means for indicating the cutting position.

[0016] The above laser means may include a first laser means for irradiating a laser perpendicular to the direction of movement of the rotary saw and a second laser means for irradiating a laser parallel to the direction of movement of the rotary saw.

[0017]

[0018] According to an embodiment of the present invention, there is an advantage in that dust generated by a rotary saw can be removed during operation.

[0019] And, according to an embodiment of the present invention, there is an advantage in that the cutting position is indicated to the worker so that the worker can cut to a desired position.

[0020]

[0021] Figure 1 is a perspective view schematically showing an electric saw according to one embodiment of the present invention.

[0022] Figure 2 is a plan view of Figure 1

[0023] Figure 3 is a side view of Figure 1.

[0024] Figure 4 is a front view of Figure 1

[0025] Figure 5 is a schematic diagram showing the path along which air flow moves in the electric saw of Figure 1.

[0026]

[0027] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following detailed description is provided to facilitate a comprehensive understanding of the methods, devices, and / or systems described herein. However, these are merely examples, and the disclosed embodiments are not limited thereto.

[0028] In describing the embodiments, if it is determined that a detailed description of related known technology may unnecessarily obscure the gist of the disclosed embodiments, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of functions in the disclosed embodiments, and this may vary depending on the intention or custom of the user or operator. Therefore, the definitions should be made based on the contents throughout this specification. The terminology used in the detailed description is only for the purpose of describing the embodiments and should not be limited in any way. Unless clearly used otherwise, the singular form includes the plural form. In this description, expressions such as "comprises" or "comprising" are intended to indicate certain features, numbers, steps, operations, elements, parts, or combinations thereof, and should not be construed to exclude the presence or possibility of one or more other features, numbers, steps, operations, elements, parts, or combinations thereof other than those described.

[0029]

[0030] FIG. 1 is a perspective view schematically showing an electric saw according to one embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is a front view of FIG. 1. In addition, FIG. 5 is a schematic diagram showing a path along which airflow moves in the electric saw of FIG. 1.

[0031] As illustrated in FIGS. 1 to 5, an electric saw (100) according to one embodiment of the present invention may include a rotary saw (110) for cutting a workpiece, a protective cover (120) for protecting the rotary saw (110), and a power means (130) for rotating the rotary saw. The rotary saw (110) of the electric saw (100) may be rotated by the power means (130) to cut the workpiece by means of a saw blade formed on the outer periphery. In order to blow away and remove dust generated from the workpiece during the cutting process, a blow means (150) may be formed in the electric saw (100). In the blow means (150), wind (W) is discharged forward of the rotary saw (110), thereby removing dust generated from the workpiece by the rotary saw (110). In order to allow the wind (W) to come out to the blow means (150), an airflow path (140) may be located on the upper side of the protective cover (120). The euro (140) is connected to the power means (130), and the air current flowing inside the euro (140) can be generated by a fan (135) that rotates by the power means (130).

[0032]

[0033] The fan (135) is connected to the motor of the power means (130) and can be rotated by the rotational force of the motor. The motor of the power means (130) can rotate the fan (135) while rotating the rotary saw (110) at the same time. Therefore, when the rotary saw (110) is rotated by the motor of the power means (130) to perform cutting work, the fan (135) can also rotate and discharge wind (W) to the blow means (150).

[0034]

[0035] By this configuration, when the worker holds the handle (180) and performs cutting work, the wind (W) is discharged to the front of the rotary saw (110) by the blowing means (150), so that the dust accumulated in the front of the rotary saw (110) during the cutting process by the rotary saw (110) can be automatically blown away and removed by the wind (W). Therefore, the worker can perform the cutting work without worrying about the dust, and no separate removal means is required to remove the dust.

[0036]

[0037] Traditionally, to prevent dust buildup, workers would hold a power saw in one hand and a portable fan or similar device to blow away the dust in the other. This required only one hand to hold the saw, making it difficult to properly cut due to its weight. While having someone else hold the fan or other device is a viable option, this requires additional manpower and can hinder proper cutting if the two workers' breathing is not synchronized.

[0038]

[0039] In contrast, in the case of the electric saw (100) according to one embodiment of the present invention, even if the worker uses both hands to hold the electric saw (100), the wind (W) is discharged through the blower means (150) during the cutting operation, so that dust generated during the operation is blown away and prevented from being a nuisance to the worker.

[0040]

[0041] A passage (140) connecting the blow means (150) and the power means (130) may be formed along the outer side (125) of the power means (130) and the protective cover (120). In particular, when the passage (140) is formed along a portion of the curved surface of the protective cover (120), the blow means (150) may discharge wind (W) toward the front of the rotary saw (110). In addition, a housing may be provided on the outer side of the motor of the power means (130) to protect the motor, and a fan (135) may be formed between the housing and the motor.

[0042]

[0043] In order to ensure that the airflow generated when the fan (135) rotates by the motor is discharged to the blower means (150) through the flow path (140), it is necessary to prevent the airflow of the fan (130) from being discharged to the outside from the power means (130) side. Accordingly, a guide may be formed around the fan (130) to prevent the airflow from being directly discharged to the outside. The guide may be positioned between the fan (130) and the housing of the power means (130) to allow the airflow generated from the fan (130) to flow toward the flow path (140).

[0044]

[0045] And, in order to indicate the cutting position of the rotary saw (110), laser means (160, 170) may be formed around the rotary saw (110). The laser means (160, 170) may include a first laser means (160) and a second laser means (170). The first laser means (160) may be arranged so that the laser (L1) is emitted perpendicularly to the direction of travel of the rotary saw (110) from the frontmost part of the rotary saw (110). Therefore, the first laser means (160) may indicate the frontmost part of the rotary saw (110) to the user. Through this, the rotary saw (110) may assist the operator in knowing the cutting position so that the operator can cut to a desired position. In addition, the second laser means (170) may be arranged so that the laser (L2) is emitted according to the cutting direction of the rotary saw (110). Specifically, the second laser means (170) is formed adjacent to the blow means (150) and can emit a laser (L2) in a direction parallel to the flow path (140). Through this, the second laser means (170) can serve to indicate to the user the direction of travel of the rotary saw (110).

[0046]

[0047] While representative embodiments of the present invention have been described in detail above, those skilled in the art will appreciate that various modifications to the above-described embodiments are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims set forth below but also by equivalents thereof.

[0048]

[0049] [Explanation of symbols]

[0050] 100: Electric saw

[0051] 110: Rotary saw

[0052] 120: Protective cover

[0053] 125: Outer side of power means

[0054] 130: Power means

[0055] 135: Fan

[0056] 140: Euro

[0057] 150: Blow means

[0058] 160: First laser means

[0059] 170: Second laser means

[0060] 180: Handle

Claims

1. A rotary saw for cutting workpieces; A power means for rotating the above rotary saw; A protective cover to protect against the above rotating saw; A blow means positioned on the above protective cover; An electric saw including a blow means, wherein the blow means blows airflow generated by a fan rotated by the power means toward the front of the rotary saw.

2. In claim 1, An electric saw including a blow means, further comprising a flow path connecting the blow means and the fan.

3. In claim 1, An electric saw comprising a blow means, wherein the fan is located within a housing in which the power means is located.

4. In claim 3, An electric saw including a blow means, wherein a guide is installed between the housing and the fan to prevent airflow generated from the fan from being discharged outside the housing.

5. In claim 1, A power saw comprising a blow means, further comprising a laser means for indicating a cutting position of said rotary saw.

6. In claim 5, An electric saw including a blow means, wherein the laser means includes a first laser means for irradiating a laser perpendicular to the direction of movement of the rotary saw and a second laser means for irradiating a laser parallel to the direction of movement of the rotary saw.

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