JP3168863U - Dust collector for drilling tools - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collector or the like which can be drilled even at a position closer to a corner and can be positioned by abutting a side surface of a box body portion against a wall surface at that time. SOLUTION: An opening 2C through which a drill is inserted is formed on an upper surface of a box having an open lower surface, a suction port connected to a tip of a suction hose 3 connected to a suction device is formed, and a lower surface of the box is formed. A dust collector for a drilling tool in which a highly flexible contact member 1A is provided around the box, and the box body is a lid member 3 composed of the opening 2C and its peripheral portion and a box body main body portion. The lid member 3 is rotatably arranged with respect to the box body portion 1 and the opening 2C is formed at a position eccentric from the rotation center with respect to the box body portion 1. [Selection diagram] Fig. 1

Description

  The present invention attaches to a drill for drilling a workpiece such as metal, stone, cement, wood, composite material, etc. (used in concepts including a core drill (core cutter)), etc. The present invention relates to a dust collecting device for collecting dust (chips and the like) generated by work (also referred to as drilling work).

  When drilling a workpiece such as metal, stone, cement, wood, composite material, etc., dust, mainly chips, is generated. Therefore, conventionally, when performing these drilling operations, at least the tip of a drill or the like to be drilled is covered with a box-shaped object, and the inside of the box-shaped object and the suction device are connected via a hose. The dust collector for drilling tools has been filed so that dust such as chips does not scatter around. (Patent Document 1).

  For example, when performing a drilling operation in a corner portion sandwiched between two standing wall surfaces of the floor surface using the dust collecting tool for a drilling tool and a drill, the box body of the dust collecting tool is When it comes into contact with the wall surface, the drill insertion opening at the position of the box cannot be drilled at a position closer to the corner than it is positioned, and when drilling at a position away from it In this case, since the wall surfaces (or standing members) on both sides forming the corner portion and the outer peripheral surface of the box are separated from each other, the operation is performed in a state where positioning is difficult. When such a state is performed using a core drill without a center drill, it is difficult to determine the center of drilling, and therefore, it is more difficult to position.

  In addition, since the tip of the drill is covered with the box-shaped object of the dust collector, the position of the hole cannot be visually observed, and the outer diameter of the drill (including the core drill) and the box There is an inconvenience that there is a gap between the upper surface of the opening and the outer peripheral edge of the opening for inserting the drill, or a state in which the drill cannot be inserted.

Japanese Utility Model Publication No. 59-124010.

  The present invention has been made in view of such a situation, and when drilling on a floor surface or the like that is a corner, drilling in a predetermined range from a position as close to a corner as possible is possible. Provided is a dust collecting tool for a drilling tool that can be installed and positioned by bringing the outer peripheral surface of the box into contact with the wall surfaces (or standing members) on both sides forming corners within the predetermined range. With the goal.

  The object of the present invention can be solved by a dust collector having the following configuration.

The dust collector for a drilling tool according to the present invention is formed with an opening through which a drill is inserted on the upper surface of a box body whose lower surface is open, and the proximal end is connected to the distal end of a suction hose connected to a suction device And a dust collector for a drilling tool in which a suction port for negative pressure inside the box is formed in the box, and a highly flexible contact member is provided around the lower surface of the box. There,
The box body is composed of a lid member having a circular shape in plan view composed of the opening and the peripheral portion thereof, and a box body main body portion,
The lid member is arranged so as to be rotatable with respect to the box body part and on the box body part,
The opening is formed in the lid member so as to be located at a position eccentric from the center when rotating with respect to the box body part,
The box body portion is configured in a substantially rhombus shape as a whole, with the tip portion having a depression angle of 90 degrees in plan view in plan view,
Inside the box, in order to position the suction port and the opening in a space independent from each other, a partition wall is provided in a circle shape so as to surround the opening in a plan view,
A communication hole that connects the space in which the suction port is formed and the space in which the opening is formed is formed in the partition wall,
The bendable bellows-shaped suction hose is integrally formed in the suction port.

According to the dust collecting tool for a drilling tool according to the present invention having the above-described configuration, due to the configuration, when drilling, the lid member is rotated relative to the box body, By changing the position of the opening with respect to the box, it is possible to perform positioning in a state where the edge of the box is in contact with at least one of the wall surfaces (or standing members) on both sides over a wide range. For this reason, even if it is a core drill without a center drill, positioning can be made easy.
Further, even when something protrudes from the wall surface to the other wall surface side, the tip portion can be brought closer to the corners of the wall surfaces (or standing members) on both sides. It is also possible to carry out drilling.
Further, as described above, when the box body portion is provided with a partition wall and a communication hole in the partition wall, it is possible to realize a structure that can easily maintain a constant negative pressure state inside the box body. , More stable dust collection can be performed.
In addition, as described above, when a bendable suction hose is integrally provided at the suction port, the rigidity is not particularly increased at the connection portion, so the hose can be bent smoothly to the vicinity of the suction port. Therefore, the flexibility (curvature) at the connection portion between the suction port and the suction hose is further improved, and the dust collecting device becomes easier to handle.

Further, in the dust collector, the communication hole is formed in a form opened to the lower end at the lower end of the partition wall,
The communication hole is formed in a part of the partition wall spaced apart on both sides from the front position where the suction port is formed in plan view,
When a highly flexible contact member is provided at the lower end of the partition wall, a structure that can easily maintain a constant negative pressure state inside the box can be realized, and thus more stable during the drilling operation. It can collect dust.

  Further, in the dust collecting device, when the partition is formed so as to be positioned on the outer periphery of the periphery of the lid member in a state where the lid member is attached to the box body portion, only the lid member is placed in the box. By removing the body main body portion and attaching lid members having different opening diameters, it is possible to easily realize a dust collecting device having an opening that matches the outer diameter of the drill (or core cutter). Of course, the partition may be integrally provided on the lid member side.

  In the dust collector, when at least a part of the lid member is made of a transparent or translucent material, it is possible to visually recognize the state of the drill accommodated in the box body. .

  Further, in the dust collecting apparatus, the communication hole is parallel to a direction substantially orthogonal to a longitudinal direction of the suction hose and two openings at positions spaced from the front of the suction port on both sides in a plan view. If a total of four locations are formed at two locations extending in the diameter direction of the part, a structure that can easily maintain a constant negative pressure inside the box can be realized, and therefore more stable during drilling operations. Can be collected.

  Moreover, in the dust collector, if the tip of the main end portion of the box has a corner portion of 60 degrees to 80 degrees in plan view, something projects from the wall surface to the other wall surface side. Even when used in such a place, the opening can be made as close as possible to the corners of the wall surfaces (or standing members) on both sides.

According to the dust collecting tool for a drilling tool according to the present invention having the above-described configuration, due to the configuration, when drilling, the lid member is rotated relative to the box body, By changing the position of the opening with respect to the box, it is possible to position the edge of the box over a wide range with at least one of the wall surfaces (or standing members) on both sides in contact with each other. . For this reason, even if it is a core drill without a center drill, positioning can be made easy.
Further, the opening can be made as close as possible to the corners of the wall surfaces (or standing members) on both sides.

It is a perspective view which shows the external appearance shape (appearance structure) of the whole dust collector for drilling tools concerning one Example of this invention. It is a top view showing the structure of the dust collector shown in FIG. It is a side view showing the structure of the dust collector shown in FIG. It is a bottom view showing the structure of the dust collector shown in FIG. It is a front view showing the structure of the dust collector shown in FIG. It is a rear view showing the structure of the dust collector shown in FIG. It is a VII-VII arrow sectional view of Drawing 2. It is the top view which showed the state which rotated the cover member with respect to the box main body part with the dashed-two dotted line.

[Example]
Example 1
Hereinafter, a dust collecting tool for a drilling tool according to an embodiment of the present invention will be specifically described with reference to the drawings.

  FIG. 1 is a perspective view showing the overall external shape (external configuration) of a dust collecting apparatus according to an embodiment of the present invention, FIG. 2 is a plan view showing the configuration of the dust collecting apparatus shown in FIG. 1, and FIG. 7 and 7 are cross-sectional views taken along arrows VII-VII in FIG.

In FIG. 1, A is a dust collecting tool for a drilling tool, and this dust collecting tool A includes a box body portion 1 and a lid member 2 having a circular shape in plan view that is separate from the box body portion 1. And a suction hose 3 in which an internal hose passage communicates with a suction port 1U (see FIGS. 4 and 7) formed in the box body portion 1 and is integrated with the box body portion 1. Yes.
As shown in FIG. 2, the box body portion 1 is a box-like form having a predetermined height in which each corner portion is rounded in a plan view and is generally rhombus (FIG. 1 to FIG. 1). As shown in FIGS. 4 and 7, the lower surface 1C of the box body 1 is open over the entire surface. Further, a thin film-like highly flexible contact member 1A, which extends outwardly and becomes thinner as it goes outward, is integrally formed on the periphery of the lower surface 1C, so that the processed surface of the workpiece is processed. It is comprised so that it can seal between.
Further, as shown in FIG. 4 or FIG. 7 and the like, the suction port 1U is formed at one corner portion of the upper surface of the box body portion 1 (the corner portion of the upper surface of the rear portion which is a depression angle from 90 degrees of the rhombus). Is formed. As shown in FIGS. 2 and 4, the corner where the suction port 1 </ b> U is formed is formed in a round shape with a larger radius of curvature than other corners in plan view. 4 and 7, the suction hose 3 extends from one end of the suction port 1U so that the inside of the suction hose 3 communicates with the suction port 1U. And the base end of this suction hose 3 is connected to the suction port side of the suction device (dust collector) B, and the inside of the said box main-body part 1 is made a negative pressure from this suction hose 3 via the suction port 1U. It is configured to be able to.

As shown in FIGS. 2 and 4, the diagonal corner portion where the suction port 1 </ b> U of the box body portion 1 is formed is also a corner portion having a depression angle of 90 degrees. In the case of this embodiment, the corner portion that becomes the depression angle is formed at about 75 degrees, but is not limited to this angle, and may be an depression angle of 90 degrees, for example, 60 degrees. It may be from 85 degrees to 85 degrees.
In addition, an opening hole 1H having a circular shape in plan view into which the lid member 2 is inserted is formed on the upper surface of the box body portion 1, and the lid member as shown in FIGS. 2 is formed in a ring shape on the bottom surface side thereof, and the outer peripheral dimension (outer diameter) of the ring-shaped flange portion 2a is substantially equal to the opening hole 1H (exactly slightly (Large). The box body portion 1 and the lid member 2 are both made of hard rubber (or soft plastic). For this reason, when a little force is applied to the lid member 2 and it is inserted into the opening hole 1H of the box body portion 1, the opening of the box body portion 1 is opened as shown in FIGS. It is comprised so that it can attach so that it may become integral in the state which the cover member 2 fitted to the hole 1H.
In the case of this embodiment, the lid member 2 is entirely made of a substantially transparent material so that the state of the drill accommodated in the box body portion 1 can be visually recognized. However, it may be made of a translucent material in which the inside is slightly transparent. Even if the entire box body 1 or a part thereof is made of a transparent or translucent material, a configuration in which the state of the drill housed in the box body portion 1 can be visually recognized can be realized.
In addition, as shown in FIGS. 1, 2, 8, etc., the drill is so positioned that the center is located in a portion eccentric from the center of the circular shape of the lid member 2 that is circular in plan view. A circular opening 2 </ b> C is formed in a plan view in which the front end of the box is inserted toward the lower surface of the box body portion 1. Therefore, when the lid member 2 is rotated relative to the box body 1 portion, the opening 2C of the box body portion 1 is formed with respect to the box body portion 1 as shown in FIG. The position can be changed relatively.
In the case of this embodiment, as shown in FIGS. 4 and 7, the outer peripheral side of the opening hole 1 </ b> H of the box body portion 1 is in a circle shape (ring shape) adjacent to the outer peripheral edge of the opening hole 1 </ b> H. The partition wall 1W is formed from the upper surface to the lower end, and the space 1S where the suction port 1C of the box body portion 1 is located and the space where the opening 2C is located (space where the opening hole 1H is located) 1V are partitioned. Is configured to do. Although not specifically illustrated, the partition wall 1W is formed in a circle shape (ring shape) on the inner side of the lid member 2 so as to be adjacent to the outer peripheral edge of the lid member 2 as another embodiment. Accordingly, the space 1S where the suction port 1C of the box body portion 1 is located and the space where the opening 2C is located (space where the opening hole 1H is located) 1V may be partitioned.
The lower end surface (end surface on the bottom surface side) of the partition wall 1W extends toward the inside of the opening hole 1H and becomes thinner as it goes inward as shown in FIGS. The thin film-like highly flexible contact member 1R is integrally formed so that the space 1V where the opening 2C (the opening hole 1H) is located and the processing surface of the workpiece can be sealed. Has been.
The partition wall 1W is formed with communication holes 1T at a plurality of locations, in this embodiment at four locations. In the case of this embodiment, the communication hole 1T has two locations spaced from the front of the suction port 1U on both sides, parallel to the direction substantially perpendicular to the longitudinal direction of the suction hose 3, and the opening hole 1H. It is formed in a total of four places, two places at positions extending in the diameter direction. However, the communication holes 1T are not limited to four places, but may be six places or more, and the positions can be appropriately and selectively provided. However, the provision at the position directly in front of or near the suction port 1U increases the amount of suction from the communication hole 1T disposed at that position, and is surrounded by the partition wall 1W and the outer peripheral wall and the upper surface of the box body portion 1. It is not preferable for stably maintaining the negative pressure in the space 1S.

  By the way, in this embodiment, the suction hose 3 is formed in a bellows shape, and therefore can be bent easily with a small bending radius. Moreover, since it is composed of the same hard rubber (or soft plastic) as the box body portion 1 in terms of material, it can be bent with a small bending radius.

  As a preferred embodiment, a plurality of the lid members 2 are prepared for each hole diameter of the opening 2C or for each predetermined hole diameter range. It becomes a preferable structure at the point which can keep the clearance gap (space | gap) between these to the required minimum.

Therefore, in the case of the present dust collector A configured as described above, the following operational effects can be achieved. In other words, the dust collection tool A for the drilling tool is placed on the processing surface of the workpiece to be drilled so that the contact member 1A and the contact member 1R are in contact with the processing surface, and The opening 2C is disposed so as to be substantially positioned at a position where the opening 2C is to be drilled. Of course, when performing such a drilling operation, the proximal end of the suction hose 3 of the dust collecting device A is connected to the suction device side. If a plurality of lid members 2 are prepared for each hole diameter of the opening 2, the lid member 2 that matches the outer diameter of the drill to be drilled is attached to the box body portion 1 in advance. Keep it.
Then, the drill is inserted through the opening 2C of the dust collector A so that the tip of the drill comes into contact with the processing surface. At this time, the lid member 2 is made of a substantially transparent material. From the outside (upper side) of the lid member 2, it can be visually confirmed whether or not it coincides with the hole position to be drilled.

Further, in the case of this dust collecting device A, when trying to perform a drilling operation on a processing surface such as a floor surface sandwiched between two wall surfaces that are erected so that the end portion comes into contact in plan view, In a state where both side surfaces or one side surface of the dust collector A is in contact with the wall surface, the position of the opening 2C is adjusted by rotating the lid member 2 relative to the box body portion 1. By changing, it becomes possible to make the position of the hole to be drilled coincide with the position of the tip of the drill.
Further, since the box body portion 1 is formed in a rhombus shape having a tip angle of more than 90 degrees in plan view, even when the sandwiched angle between the two wall surfaces is smaller than 90 degrees, or one of the wall surfaces Therefore, even when something protrudes on the other wall surface side, the dust collector A can be disposed between these two walls. In other words, it is possible to drill in a predetermined range from a position close to a corner formed by two wall surfaces to a position further apart, and a box is formed on both wall surfaces (or one wall surface) forming a corner in the predetermined range. The side surface of the body main body portion 1 can be brought into contact with and positioned.

In this way, when the position of the drill is matched with the hole position to be drilled, the suction device is turned on and a rotary tool (for example, an electric drill or a pneumatic drill) is rotated. Drilling is performed on the machining surface, and dust such as chips generated in the drilling operation passes from the space 1V where the opening 2C is located to the space 1S through the communication hole 1T and further into the space 1S. A suction hose 3 is sucked from the communicating suction port 1U. During the dust collection, as described above, the partition wall 1W partitions the space 1S inside the outer peripheral wall of the box body portion 1 with the space 1V in which the opening 2C is provided. Since the space 1S is stably maintained at a substantially predetermined negative pressure state during the drilling operation, it is possible to exhibit a stable dust collection function.
Moreover, since the suction hose 3 is formed integrally with the box body portion 1 having the suction port 1U as described above, and because the suction hose 3 is configured in a bellows shape, further, as described above. Since it is made of a hard rubber or soft plastic material, the suction hose 3 can be bent with a small radius of curvature even when performing a drilling operation or the like in a narrow space.

  As another example, all of the box body portion 1, the lid member 2 and the suction hose 3 may be formed of a transparent or translucent member. This is a more preferable embodiment in that the installation state and the dust collection state can be visually recognized.

  Moreover, the dust collecting tool for a drilling tool according to the present invention can be used not only in a so-called dry type but also in a wet type in which a cutting fluid (cutting water) is used. It can be collected on the suction device side.

  The dust collecting tool for a drilling tool according to the present invention can be used as a dust collecting device for drilling a workpiece such as metal, stone, cement, wood, and composite material.

A ... Dust collector
1 ... Box body
1A: Contact member
1C ... Bottom
1T ... Communication hole 1U ... Suction port
1W ... Bulkhead
2 ... Lid member
2C ... opening
3 ... Suction hose

Claims (7)

An opening through which a drill is inserted is formed on the upper surface of the box having an open bottom surface, and a suction port for connecting the base end to the tip of a suction hose connected to the suction device and making the inside of the box negative pressure A dust collecting tool for a drilling tool formed in the box and having a highly flexible contact member around the lower surface of the box,
The box body is composed of a lid member having a circular shape in plan view composed of the opening and the peripheral portion thereof, and a box body main body portion,
The lid member is arranged so as to be rotatable with respect to the box body part and on the box body part,
The opening is formed in the lid member so as to be located at a position eccentric from the center when rotating with respect to the box body part,
The box body portion is configured in a substantially rhombus shape as a whole, with the tip portion having a depression angle of 90 degrees in plan view in plan view,
Inside the box, in order to position the suction port and the opening in a space independent from each other, a partition wall is provided in a circle shape so as to surround the opening in a plan view,
A communication hole that connects the space in which the suction port is formed and the space in which the opening is formed is formed in the partition wall,
A dust collecting tool for a drilling tool, wherein the suction bellows-shaped suction hose which is freely bent is integrally formed in the suction port. The communication hole is formed in a form opened to the lower end at the lower end of the partition,
The communication hole is formed in a part of the partition wall spaced apart on both sides from the front position where the suction port is formed in plan view,
The dust collection tool for a drilling tool according to claim 1, wherein a contact member having high flexibility is provided around the lower end of the partition wall.   The perforation according to claim 1 or 2, wherein the partition wall is formed so as to be positioned on the outer periphery of the peripheral edge of the lid member in a state where the lid member is attached to the box body portion. Tool dust collector.   The dust collecting tool for a drilling tool according to any one of claims 1 to 3, wherein at least a part of the lid member is made of a transparent or translucent material.   In the plan view, the communication hole has two positions spaced from the front of the suction port on both sides, and a position extending in a direction substantially perpendicular to the longitudinal direction of the suction hose and extending in the diameter direction of the opening. The dust collecting device for a drilling tool according to any one of claims 1 to 4, wherein the dust collecting device is formed in a total of four locations.   The dust collection for a drilling tool according to any one of claims 1 to 5, wherein a front end portion of the box body end portion has a corner portion of 60 degrees to 80 degrees in a plan view. Instruments.   The said partition is formed so that it may be located in the outer peripheral side of the periphery of this cover member in the state in which the said cover member was attached to the box main-body part. A dust collector for a drilling tool according to the item.

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