KR102713546B1 - Electric circular saw with dust collecting member for tool storage - Google Patents

Abstract

The present invention relates to an electric circular saw having a dust collecting member for storing tools, and more specifically, the dust collecting member is detachably connected to a discharge pipe installed on a blade cover of a circular saw blade and for discharging material chips, and is in the form of a cart having wheels installed on a lower surface, and a cart handle whose one end of a parallel bar on one side of the cart body is extended to a lower end by an axis rotation and whose hook end of a horizontal bar connecting the other end of the parallel bar is hooked and fixed to the upper end of the other side of the cart body, and relates to an electric circular saw having a dust collecting member for storing tools, which can be converted into a box shape.

Description

Electric circular saw with dust collecting member for tool storage

The present invention relates to an electric circular saw having a dust collecting member for storing tools, and more specifically, the dust collecting member is detachably connected to a discharge pipe installed on a blade cover of a circular saw blade and for discharging material chips, and is in the form of a cart having wheels installed on a lower surface, and a cart handle in which one end of a parallel bar is extended to a lower end by an axis rotation on one side of the cart body and a hook end of a horizontal bar connecting the other end of the parallel bar is hooked and fixed to the upper end of the other side of the cart body, and the electric circular saw has a dust collecting member for storing tools that can be converted into a box shape.

In general, when cutting materials with a circular saw, material chips are inevitably generated from the cut material. Since these material chips can contaminate the work area and reduce work efficiency, there is a very high need to collect these material chips during the work process.

Prior art technologies for collecting material chips during the above-mentioned work have already been introduced, such as “Automatic Saw Machine” in Publication Patent No. 10-2017-0100701 (published on September 5, 2017), “Automatic Circular Saw Cutter for Wood Processing” in Registered Utility Model No. 20-093869 (registered on June 15, 2000), “Electric Saw for Wood Processing” in Registered Utility Model No. 20-0211827 (registered on November 15, 2000), and “Cutting Machine” in Registered Patent No. 10-0628886 (registered on September 20, 2006).

Publication Patent No. 10-2017-0100701 (Published on September 5, 2017) Utility Model Registration No. 20-093869 (Registered on June 15, 2000) Utility Model Registration No. 20-0211827 (Registered on November 15, 2000) Registered Patent No. 10-0628886 (registered on September 20, 2006)

The above prior arts all introduce material chip collection devices having different configurations, and the present invention also provides a dust collection member which is a material chip collection device having a different configuration from the above prior arts, and provides an electric circular saw having a dust collection member that can be separated from the cutting member when necessary to clean the work space, or can be used as a storage box for storing accessory materials and tools necessary for cutting work.

In order to achieve the above-mentioned object, the present invention relates to an electric circular saw equipped with a dust collecting member for collecting material chips cut by a circular saw blade, wherein a saw blade cover protecting the circular saw blade is provided on one side with a discharge pipe for discharging material chips; The above dust collecting member is a cart-shaped member having wheels installed on the lower surface and an open upper surface, and a cart handle in which one end of a parallel bar on one side of the cart body is extended to a one-side low ground by axial rotation, and a hook end of a horizontal bar connecting the other end of the parallel bar is hooked and fixed to the upper end of the other side of the cart body to be extended and recovered, and the internal space of the cart body is separated into a sealed section and a motor section by a partition wall section through which a suction hole blocked by a filter is penetrated, and a suction motor which provides suction force to the sealed section through the suction hole is installed in the motor section, and in the sealed section, which is a space of the sealed section whose upper surface is closed by a detachable sealed cover, a dust collecting bag is installed so as to communicate with the outside through a recovery pipe, and a dust collecting duct which detachably connects the recovery pipe and the discharge pipe is provided, and material chips are collected in the dust collecting bag by the operation of the suction motor. The basic configuration is an electric circular saw.

Preferably, the dust collecting bag is composed of a dust collecting tube detachably connected to the recovery tube, and a bag connected and installed to the dust collecting tube.

Preferably, the dust collection duct is provided with duct connections at each end, and the duct connections at each end are detachably connected to the discharge pipe and the recovery pipe, respectively, and a detachable cleaning nozzle is connected to the duct connection that is separated from the discharge pipe to clean the work space.

The electric circular saw of the present invention having the above configuration has the advantage of being able to utilize the dust collecting member in various ways by configuring a cart handle that can pull the dust collecting member when the dust collecting member, which is a material chip collection device, is moved so that the dust collecting member can be deployed by rotating the shaft.

In addition, it has the advantage of being able to separate the dust collection material from the cutting material to clean the work area as needed, or to be used as a storage box to store accessories and tools needed for cutting work.

Figure 1 is a plan perspective view of an electric circular saw according to the present invention.
Figure 2 is a bottom perspective view of an electric circular saw according to the present invention.
Figure 3 is an installation configuration diagram of the dust collecting member of the present invention.

Hereinafter, the present invention will be described in detail using the attached drawings. However, since the attached drawings illustrate preferred embodiments of the present invention, the scope of the rights of the present invention is not limited by these drawings. In addition, even if it is a configuration that is absolutely necessary for carrying out the present invention, a detailed description will be omitted for a configuration that belongs to known technology or can be easily carried out by a person skilled in the art from known technology.

As shown in FIGS. 1 to 3, the electric circular saw of the present invention is configured to include a cutting member (10) for cutting a material, and a dust collecting member (20) for collecting material chips generated during the operation of the cutting member (10).

Referring to FIGS. 1 and 2, the cutting member (10) is installed with a motor housing (16) on a work table (14) supported by a support leg (15), and a circular saw blade (11) that rotates by a drive motor (not shown) built into the motor housing (16) is installed on the work table (14). A saw blade cover (12) that protects the circular saw blade (11) is installed on the circular saw blade (11), and a discharge pipe (13) that discharges material chips generated when the circular saw blade (11) cuts the material is installed on the saw blade cover (12).

In addition, a material guide part (17) is installed on the work table (14) to guide the material to be cut by the circular saw blade (11). The material guide part (17) is composed of a fixed guide (171) fixedly installed on one side of the work table (14) and a moving guide (172) that can move along the fixed guide (171) and can be fixed to a specific point of the fixed guide (171).

The above fixed guide (171) is fixedly installed on one end of the work table (14), and is composed of a fixed connection member (171a) fixedly installed along one end, a ruler (171b) protruding along the vertical middle portion of the fixed connection member (171a) and having graduation marks, and a guide rod (171c) extending downward from the ruler (171b) and integrally protruding from the lower end of the fixed connection member (171a).

The above moving guide (172) is movable along the above fixed guide (171) and is installed on the top plate of the work table (14). The moving guide (172) is provided with a moving body (172a) formed across both ends of the work table (14) in a vertical direction with respect to the fixed guide (171), an adjusting member (172b) installed at one end of the moving body (172a) so as to bring the fixed connection member (171a) installed at one end of the work table (14) and the other end of the work table (14) into close contact with each other to fix the moving body (172a) to the work table (14), and a sliding member (172d) fixedly installed at one end of the moving body (172a) so as to allow the moving body (172a) to slide along the guide rod (171c).

Through the above configuration, in order to cut the supplied material to a required size, the adjusting member (172b) of the moving guide (172) is operated to release the state in which the adjusting contact pieces (172c) provided on both sides of the moving body (172a) are in close contact with the fixed joint end (171a) of the fixed guide (171) and the other end of the work table (14). Then, the sliding member (172d) is moved along the guide bar (171c) to the position of the target specific ruler (171b), and then the adjusting member (172b) is operated again so that the adjusting contact pieces (172c) are fixed while pressing and contacting both ends of the work table (14). Through this, the moving guide (172) can be fixed to a specific position of the fixed guide (171).

As described above, when the drive motor built into the motor housing (16) is operated while the moving guide (172) is fixed to the fixed guide (171), the circular saw blade (11) operates to cut the material to the desired size. In the process in which the circular saw blade (11) cuts the material, material chips are generated, and these material chips are discharged through the discharge pipe (13) installed in the saw blade cover (12) covering the circular saw blade (11) as shown in FIG. 2. In the present invention, the saw blade cover (12) is exemplified as covering the lower part of the circular saw blade (11), but the saw blade cover (12) may be formed to cover the upper part of the circular saw blade (11) if necessary.

All material chips discharged through the above discharge pipe (13) are collected by the above dust collecting member (20).

The above dust collecting member (20) is a cart-shaped body (20A) having wheels (20C) installed on the lower surface of a body-shaped body having an open upper surface (20D), and a cart handle (20B) installed on one side of the cart body (20A) so as to be able to rotate about a rotation axis (20B1).

The above-mentioned cart handle (20B) is installed on one side of one side of the cart body (20A) so that one end of a parallel bar (20B2) can rotate about a rotation axis (20B1). In addition, a horizontal bar (20B3) connecting the parallel bars (20B2) is installed on the other end of the parallel bar (20B2). At this time, a catch (20B4) is formed protrudingly on the horizontal bar (20B3).

The cart handle (20B) configured as described above can be stored in a state where the other end of the parallel bars (20B2) is pivotally rotated toward the other side of the cart body (20A), as shown in FIGS. 1 and 2, when there is no need to use the cart handle (20B). At this time, one side of the parallel bars (20B2) is pivotally rotated about the rotation axis (20B1) until the engaging end (20B4) of the horizontal bar (20B3) engages the other upper end of the cart body (20A). Naturally, the cart handle (20B) can be maintained in a fixed state by engaging the engaging end (20B4) at the other upper end of the cart body (20A).

And, when the movement of the cart body (20A) is required, as shown in Fig. 3, when the cart handle (20B) is rotated around the rotation axis (20B1), the horizontal bar (20B3), which is the other end of the parallel bars (20B2), is rotated to be positioned outside the cart body (20A), so that the cart body (20A) can be pulled. At this time, a one-side stopper (20A1) is installed on the upper side of one end of the cart body (20A) to prevent the rotation of the parallel bars (20B2). The one-side rotation of the cart handle (20B) is prevented by the one-side stopper (20A1) installed in this manner.

The internal space of the above cart body (20A) is separated into a motor section (22) and a sealed section (23) by a bulkhead section (21).

In the above-mentioned bulkhead part (21), a suction hole (211) is formed through which the motor part (22) and the sealed part (23) communicate with each other. However, a filter fixing part (213) is installed on one side of the bulkhead part (21) where the suction hole (211) is installed, and the suction hole (211) is blocked through a filter (212) installed in the filter fixing part (213).

A suction motor (221) is installed in the above motor section (22) to provide suction force to the sealed section (23) by contacting the suction hole (211).

And a motor cover (223) may be installed in the motor opening (222), which is the opening (20D) of the cart body (20A) corresponding to the motor section (22). The motor cover (223) may be installed so that the other end can rotate about an axis and one end is fixed by being caught on a stop step (224) installed in the partition wall (21), thereby opening and closing the motor opening (222). A handle hole (223a) may be formed through one end of the motor cover (223) to facilitate opening and closing of the motor opening (222).

In addition, preferably, a wiring hole (225) that connects the inside and outside is installed in the motor section (22), and a power line that supplies power to the suction motor (221) is provided through the wiring hole (225).

The sealed portion (23) is brought into a sealed state by the sealed portion cover (231) that opens and closes the sealed portion opening (232), which is the opening (20D) of the cart body (20A) corresponding to the sealed portion (23). A rim step (235) is installed along the rim of the sealed portion (23) closed by the sealed portion cover (231) to secure the sealed portion cover (231) along the rim so that the internal space becomes a sealed portion. In addition, a handle groove (231a) may be installed in the sealed portion cover (231). It is preferable that the handle groove (231a) is not penetrated but is installed in the shape of a groove on the outer surface of the sealed portion cover (231) so that the sealed portion is maintained in a closed state.

In addition, a recovery pipe (233) is installed on one side wall of the sealed chamber (23) so that the sealed chamber is connected to the outside. A dust collection bag (234) is detachably connected and installed on the other end of the sealed chamber side of the recovery pipe (233). The dust collection bag (234) is composed of a dust collection pipe (234a) detachably connected to the recovery pipe (233) and a bag (234b) installed on the dust collection pipe (234a). Here, the dust collection bag (234) installed in the sealed chamber can be removed from the recovery pipe (233) as needed, and when the dust collection bag (234) is removed from the recovery pipe (233), the sealed chamber (23) becomes one large storage space. The storage space of the sealed chamber (23) thus provided can be used to store cutting materials or various tools.

In addition, a dust collection duct (24) is detachably connected to one end of the recovery pipe (233) and the other end thereof. One end of the dust collection duct (24) is detachably connected to the discharge pipe (13) installed on the saw blade cover (12). Preferably, a duct connection port (241) is installed at each end of the dust collection duct (24), and the recovery pipe (233) and the discharge pipe (13) are connected through the duct connection port (241).

As described above, after connecting the dust collection bag (234) to the recovery pipe (233) located in the sealed room of the sealed room (23), the dust collection duct (24) is installed so that the discharge pipe (13) and the recovery pipe (233) are connected. Then, when the suction motor (221) is operated, the suction force of the suction motor (221) is applied to the sealed room (23) beyond the filter (212). Then, the material chips discharged from the discharge pipe (13) through the recovery pipe (233) and the dust collection duct (24) are collected in the dust collection bag (234). At this time, the large material chips are placed in a dust collecting bag (234), and the air and dust sucked in together with the material chips pass through a filter (212), and after the dust is filtered through the filter (212), only the purified air is discharged to the outside through the handle hole (223a) and the wiring hole (225).

In addition, as shown in Fig. 3, the dust collecting member (20) of the present invention can be used by separating one end of the dust collecting duct (24) from the discharge pipe (13) and then attaching the cleaning nozzle (25). When the cleaning nozzle (25) is attached to one end of the dust collecting duct (24), there is an advantage in that the suction power of the suction motor (221) is transmitted to the cleaning nozzle (25), so that the surrounding area of the work space can be cleaned using the cleaning nozzle (25).

10: Cutting member 11: Circular saw blade
12: Saw blade cover 13: Exhaust pipe
14: Worktable 15: Supporting leg
16: Motor housing 17: Material guide section
171: Fixed guide 171a: Fixed joint
171b: Ruler 171c: Guide rod
172: Movement Guide 172a: Movement Body
172b: Adjustment hole 172c: Adjustment tight piece
172d: sliding hole
20: Dust collection member 20A: Cart body
20A1: One-sided low ground 20B: Cart handle
20B1: Rotation axis 20B2: Parallel bars
20B3: Horizontal bar 20B4: Hanging bar
20C: Wheel 20D: Open
21: Bulkhead 211: Suction hole
212: Filter 213: Filter fixing part
22: Motor section 221: Suction motor
222: Motor opening 223: Motor cover
223a: Handle 224: Stopper
225: Wireman
23: Sealed room 231: Sealed room cover
231a: Handle groove 232: Closed opening
233: Recovery tube 234: Dust bag
234a: Dust collector 234b: Pocket
235: Borderline
24: Dust collection duct 241: Duct connection port
25: Cleaning nozzle

Claims (3)

In an electric circular saw equipped with a dust collecting member (20) for collecting material chips cut by a circular saw blade (11),
On one side of the saw blade cover (12) protecting the above circular saw blade (11), a discharge pipe (13) is provided through which material chips are discharged.
The above dust collecting member (20) is a cart type having wheels (20C) installed on the lower surface and an open hole (20D) on the upper surface, and a cart handle (20B) in which one end of a parallel bar (20B2) is extended to one side of the cart body (20A) by axial rotation to one side of the cart body (20A1) is extended and recovered by the engaging end (20B4) of a horizontal bar (20B3) connecting the other end of the parallel bar (20B2) being engaged and fixed to the upper end of the other side of the cart body (20A), and when the cart handle (20B) is extended, the horizontal bar (20B3) is arranged to leave the cart body (20A) so as to pull the cart body (20A), and the internal space of the cart body (20A) is penetrated by a suction hole (211) blocked by a filter (212). An electric circular saw having a dust collecting member for tool storage, which is separated into a sealed section (23) and a motor section (22) by a partition wall (21), and a suction motor (221) is installed in the motor section (22) to provide suction force to the sealed section (23) through the suction hole (211), and a dust collecting bag (234) is installed in the sealed section, which is a space of the sealed section (23) whose upper surface is closed through a detachable sealed cover (231), so as to be communicated with the outside through a recovery pipe (233), and which has a dust collecting duct (24) that detachably connects the recovery pipe (233) and the discharge pipe (13), so that material chips are collected in the dust collecting bag (234) by the operation of the suction motor (221).
In the first paragraph,
An electric circular saw having a dust collecting member for tool storage, the dust collecting bag (234) comprising a dust collecting tube (234a) detachably connected to the recovery tube (233) and a bag (234b) connectedly installed to the dust collecting tube (234a).
In the first paragraph,
The above dust collection duct (24) is provided with a duct connection port (241) at each end, and the duct connection port (241) at each end is detachably connected to the discharge pipe (13) and the recovery pipe (233), and a detachable cleaning nozzle (25) is connected to the duct connection port (241) separated from the discharge pipe (13), and a dust collection member for tool storage for cleaning the work space is provided.