Power tool system, power tool and dust collection device

Abstract

To extend the service life of a spring terminal.SOLUTION: An electric tool system 1 includes an electric tool 2, and a dust collection device 4. The dust collection device 4 collects powder dust. The electric tool 2 has a first connector 3. The first connector 3 supplies electric power to the dust collection device 4. The dust collection device 4 has a second connector 44. One of the first connector 3 and the second connector 44 has a protrusion terminal 441. The protruding terminal 441 protrudes in a first direction. Another of the first connector 3 and the second connector 44 has a spring terminal 331 and a movement regulation part 321. The spring terminal 331 and the movement regulation part 321 are structured so as to hold the protruding terminal 441 along a second direction orthogonal to the first direction. The spring terminal 331 is electrically connected to the protruding terminal 441. The movement regulation part 321 regulates the movement of the protruding terminal 441 along the second direction.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure generally relates to a power tool system, a power tool, and a dust collection device, and more particularly, to a power tool system including a dust collection device, and a power tool and a dust collection device used in the power tool system. [Background technology]

[0002] The dust collection unit described in Patent Document 1 is attached to a rotary hammer and is supplied with power from the rotary hammer. In the dust collection unit and rotary hammer of Patent Document 1, the dust collection unit and the rotary hammer are electrically connected by clamping a metal pin of the dust collection unit between a spring terminal of the rotary hammer. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] European Patent Application Publication No. 1459842 Summary of the Invention [Problem to be solved by the invention]

[0004] However, power tools such as rotary hammers generate strong vibrations during use, which causes the spring terminal that clamps the convex terminal to vibrate violently as well. This repeatedly places a large load on the base of the spring terminal, potentially shortening its lifespan.

[0005] The present disclosure has been made in consideration of the above-mentioned circumstances, and has an object to provide a power tool system, a power tool, and a dust collection device that extend the life of a spring terminal. [Means for solving the problem]

[0006] In order to solve the above problem, a power tool system according to one aspect of the present disclosure includes a power tool and a dust collecting device. The dust collecting device is configured to be attachable to the power tool and collects dust. The power tool has a first connector. The first connector supplies power to the dust collecting device. The dust collecting device has a second connector. The second connector is electrically connected to the first connector of the power tool. One of the first connector and the second connector has a convex terminal. The convex terminal protrudes in a first direction that is a direction in which the first connector and the second connector are inserted into the other of the first connector and the second connector. The other of the first connector and the second connector has a spring terminal and a movement restricting portion. The spring terminal and the movement restricting portion are configured to be able to hold the convex terminal along a second direction perpendicular to the first direction. The spring terminal is conductive and is electrically connected to the convex terminal. The movement restricting portion restricts movement of the convex terminal along the second direction. The second connector has a pair of claws. The electric power tool has a pair of recesses configured to engage with the pair of claws. The pair of claws and the pair of recesses are aligned with the spring terminal and the movement restricting portion in the second direction so as to sandwich the spring terminal and the movement restricting portion in between when the first connector and the second connector are connected.

[0007] According to an embodiment of the present disclosure, there is provided a power tool for use in the power tool system, the power tool including the first connector, the first connector including the spring terminal and the movement restricting portion.

[0008] A dust collecting device according to an aspect of the present disclosure is used in the power tool system. The dust collecting device includes the second connector. The second connector includes the spring terminal and the movement restricting portion. Effect of the Invention

[0009] According to the power tool system, the power tool, and the dust collection device according to the above aspects of the present disclosure, the life of the spring terminal can be extended. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a plan view of a power tool system according to one embodiment. [Diagram 2] FIG. 2 is a perspective view of a main part of the dust collecting device according to the above embodiment. [Diagram 3]FIG. 3 is a perspective view of a main part of the electric power tool according to the above embodiment. [Figure 4] FIG. 4 is an exploded perspective view of a main part of the electric power tool according to the above embodiment. [Diagram 5] FIG. 5 is a cross-sectional view taken along line XX in FIG. [Figure 6] FIG. 6 is a cross-sectional view of the dust collecting device according to the above embodiment. [Figure 7] FIG. 7 is a perspective view of the dust-collecting container according to the above embodiment. [Figure 8] FIG. 8 is an exploded perspective view of the dust-collecting container according to the above embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. In the embodiments described below, elements common to each other are given the same reference numerals, and duplicated descriptions of the common elements will be omitted. The following embodiment is merely one of various embodiments of the present disclosure. Various modifications of the embodiment are possible depending on the design, etc., as long as the object of the present disclosure can be achieved. Each figure described in this disclosure is a schematic diagram, and the ratio of the size and thickness of each component in each figure does not necessarily reflect the actual dimensional ratio. Note that the arrows indicating each direction are merely examples, and are not intended to define the direction when the power tool system 1 is used. Also, the arrows indicating each direction in the drawings are merely indicated for explanatory purposes, and do not have any substance.

[0012] In this disclosure, "orthogonal" does not only mean that the angle between the two directions is exactly 90 degrees, but also means that the angle between the two directions is approximately orthogonal within a certain margin of error. In other words, the angle between the two orthogonal directions falls within a certain margin of error (for example, 10 degrees or less) from 90 degrees.

[0013] (1) Overview First, an overview of a power tool system 1 according to this embodiment will be described with reference to Fig. 1 to Fig. 3. As shown in Fig. 1, the power tool system 1 according to this embodiment includes a power tool 2 and a dust collecting device 4.

[0014] The power tool 2 is, for example, a hammer drill, and is provided with a drill bit 6 attached as a tip tool. The power tool 2 is configured to drive the drill bit 6 to process an object to be processed. The object to be processed is, for example, concrete or wood. More specifically, the power tool 2 forms a hole in the object to be processed by rotary cutting with the drill bit 6, or crushes the object to be processed by striking the object to be processed with the drill bit 6. Note that, here, rotary cutting means cutting the object to be processed while rotating the drill bit 6.

[0015] The dust collector 4 collects dust generated from the workpiece when the drill bit 6 performs rotary cutting or impact on the workpiece.

[0016] The dust collecting device 4 is detachably attached to the power tool 2. More specifically, the dust collecting device 4 is attached to the power tool 2 such that the second connector 44 of the dust collecting device 4 is electrically connected to the first connector 3 (see FIG. 3 ) of the power tool 2. The dust collecting device 4 is driven by power supplied from the battery pack 27 of the power tool 2.

[0017] 2, the second connector 44 of the present embodiment has a pair of convex terminals 441 that protrude in a first direction (rearward) that is a direction in which the second connector 44 is inserted into the first connector 3. In the following description, when there is no need to distinguish between the pair of convex terminals 441, each of the pair of convex terminals 441 will be referred to as the convex terminal 441.

[0018] 3, the first connector 3 of this embodiment has a pair of convex terminal receivers. Each of the pair of convex terminal receivers has a spring terminal 331 and a movement restricting portion 321. The spring terminal 331 and the movement restricting portion 321 are configured to be able to hold the convex terminal 441 along a second direction (left-right direction) perpendicular to the first direction.

[0019] The spring terminal 331 is conductive and is electrically connected to the convex terminal 441. The movement restricting portion 321 restricts the movement of the convex terminal 441 in the left-right direction.

[0020] In the power tool system 1 of the present embodiment, when the power tool 2 is driven and vibrates, the movement restricting portion 321 restricts the movement of the convex terminal 441 in the left-right direction due to the vibration, thereby reducing the vibration of the spring terminal 331. This makes it possible to extend the life of the spring terminal 331.

[0021] (2)Details Hereinafter, the power tool system 1 according to this embodiment will be described in detail with reference to FIGS.

[0022] In the following description, the direction in which the first connector 3 and the second connector 44 are lined up is defined as the "front-rear direction". The direction from the first connector 3 to the second connector 44 is defined as the "front direction", and the direction from the second connector 44 to the first connector 3 is defined as the "rear direction". In addition, the direction in which the body part 22 and the mounting part 24 are lined up is defined as the "up-down direction". The direction from the body part 22 to the mounting part 24 is defined as the "downward direction", and the direction from the mounting part 24 to the body part 22 is defined as the "upward direction". In addition, the direction perpendicular to both the front-rear direction and the up-down direction is defined as the "left-right direction". The description of the directions in this disclosure is not intended to limit the direction in which the power tool system 1 is used. The arrows representing left-right, up-down, front-rear, and rear in the drawings are merely indicated for the purpose of explanation and do not have any substance.

[0023] (2.1) Components of the power tool system As shown in Fig. 1, the power tool system 1 includes the power tool 2 and the dust collecting device 4. As described above, the power tool 2 and the dust collecting device 4 are electrically connected to each other.

[0024] (2.2) Configuration of power tools Next, the power tool 2 according to this embodiment will be described in detail with reference to FIGS.

[0025] The power tool 2 has a body 21. The body 21 has a trunk portion 22, a grip portion 23, and a mounting portion 24.

[0026] The body 22 is tubular and extends in the front-rear direction. A spindle, a transmission mechanism, and a motor are housed in the body 22 in this order from the front.

[0027] The spindle is a part that holds a tool tip such as the drill bit 6. The spindle is disposed at the front inside the body 22 so that its central axis is along the front-to-rear direction. A chuck 26 is provided at the tip of the spindle. The chuck 26 is a part that locks the state in which the spindle holds the drill bit 6 and releases this lock.

[0028] The motor is a drive source for driving a tool tip such as the drill bit 6 held by the spindle. The motor is driven by power supplied from the battery pack 27.

[0029] The transmission mechanism is a mechanism that transmits the rotational output of the motor to the spindle. The transmission mechanism is disposed between the motor and the spindle in the front-rear direction. The transmission mechanism has a rotation mechanism and an impact mechanism. The rotation mechanism rotates the spindle according to the rotational output of the motor, thereby rotating the drill bit 6. The impact mechanism converts the rotational output of the motor into reciprocating motion, and impacts the spindle from behind with the reciprocating motion, thereby impact-driving the drill bit 6. Impact driving refers to driving a tip tool such as the drill bit 6 so as to impact an object to be machined.

[0030] The grip portion 23 protrudes downward (in the radial direction of the body portion 22) from a part of the circumferential surface of the body portion 22. The grip portion 23 is a portion that is held by an operator. The grip portion 23 is provided with a trigger 25 (operation portion).

[0031] The trigger 25 protrudes forward from the grip portion 23. The trigger 25 is an operation portion that receives an operation for controlling the rotation of the motor. The motor can be switched on and off by pulling the trigger 25. The rotation speed of the motor can be adjusted by the pulling amount of the trigger 25. The greater the pulling amount, the faster the rotation speed of the motor.

[0032] The mounting part 24 is provided at the lower end of the grip part 23. In other words, the body part 22 and the mounting part 24 are connected by the grip part 23. The mounting part 24 is configured so that the battery pack 27 can be removably attached thereto. The battery pack 27 is not a component of the power tool 2. However, the power tool 2 may be equipped with the battery pack 27.

[0033] 3, the mounting portion 24 has a pair of guide grooves 241 and a pair of recesses 242 (see FIG. 5). The pair of guide grooves 241, the pair of recesses 242, and the first connector 3 are arranged side by side in the left-right direction. In addition, in a plan view from the front-rear direction, the pair of recesses 242 are arranged between the pair of guide grooves 241, and the first connector 3 is arranged between the pair of recesses 242.

[0034] The pair of guide grooves 241 are formed along the front-rear direction and are recessed so as to approach each other in the left-right direction. The pair of guide grooves 241 are portions that guide the insertion of the second connector 44 (see FIG. 2) of the dust collecting device 4 into the first connector 3. A pair of guide protrusions 442 (see FIG. 2), which will be described later, of the dust collecting device 4 are inserted into the pair of guide grooves 241 from the front direction.

[0035] 5, the pair of recesses 242 are recessed in a direction moving away from each other in the left-right direction. The pair of recesses 242 are recesses into which a pair of claws 443 (described later) of the dust collecting device 4 is hooked. By hooking the pair of claws 443 into the pair of recesses 242, it is possible to make the second connector 44 less likely to come off the first connector 3.

[0036] (2.3) First connector and second connector Next, the first connector 3 and the second connector 44 will be described in detail with reference to FIGS.

[0037] (2.3.1) Configuration of the first connector First, the first connector will be described in detail. As shown in Fig. 3, the first connector 3 is provided at the front end of the mounting portion 24. The first connector 3 is electrically connected to the second connector 44 (see Fig. 2) of the dust collecting device 4 (see Fig. 2) and is a connector that supplies power to the dust collecting device 4.

[0038] Fig. 4 is an exploded perspective view of the first connector 3. As shown in Fig. 4, the first connector 3 has a case 31, a resin member 32, a conductive portion 33, and a dustproof portion .

[0039] The case 31 has a recess 311 and an opening 312. The recess 311 accommodates the resin member 32 to which the conductive portion 33 is attached, and the dustproof portion 34. A convex terminal 441 (see FIG. 5) of the dust collector 4 is passed through the opening 312.

[0040] The resin member 32 is formed of, for example, a synthetic resin. The resin member 32 has a base 320 and a pair of movement restricting portions 321. The pair of movement restricting portions 321 protrude forward from the base 320. The pair of movement restricting portions 321 are aligned in the left-right direction. In the following description, when there is no need to distinguish between the pair of movement restricting portions 321, each of the pair of movement restricting portions 321 will be referred to as a movement restricting portion 321.

[0041] The movement restricting portion 321 has a first protrusion 322 and a second protrusion 324. The first protrusion 322 has a recess 323. The conductive portion 33 is arranged along the recess 323. The two second protrusions 324 of the pair of movement restricting portions 321 are adjacent to each other. As shown in FIG. 5, in a state in which the first connector 3 of the power tool 2 and the second connector 44 of the dust collection device 4 are electrically connected, the second protrusions 324 restrict the movement of the convex terminal 441 in the left-right direction.

[0042] Further, the second protruding portion 324 has a tapered portion 325. The tapered portion 325 is formed at the tip (front end) of the second protruding portion 324 in the direction along the first direction (front-rear direction). The tapered portion 325 is inclined in a direction such that the width of the tapered portion 325 along the left-right direction becomes smaller as it approaches the tip, i.e., the front direction. The tapered portion 325 functions as a guide, making it easier to insert the convex terminal 441 of the dust collector 4 between the spring terminal 331 and the second protruding portion 324.

[0043] The conductive part 33 is formed of a metal such as copper. The conductive part 33 has electrical conductivity. The conductive part 33 is electrically connected to the battery pack 27 (see FIG. 1) via an electric wire L1. The conductive part 33 has a spring terminal 331. The spring terminal 331 and the convex terminal 441 of the dust collector 4 are electrically connected by contacting each other. In other words, the electrical connection between the spring terminal 331 and the convex terminal 441 of the dust collector 4 makes it possible to supply power from the battery pack 27 to the dust collector 4.

[0044] Furthermore, in a state in which the conductive portion 33 is attached to the resin member 32, the spring terminal 331 and the second protruding portion 324 of the resin member 32 face each other in the left-right direction. The convex terminal 441 of the dust collector 4 is inserted between the spring terminal 331 and the second protruding portion 324. That is, in a state in which the first connector 3 of the power tool 2 and the second connector 44 of the dust collector 4 are electrically connected, the spring terminal 331 and the second protruding portion 324 hold the convex terminal 441 by sandwiching it therebetween in the left-right direction.

[0045] Dustproof part 34 is formed of, for example, silicone rubber. Dustproof part 34 prevents dust from entering inside case 31 through opening 312 of case 31. Dustproof part 34 has a pair of holes 341. Convex terminals 441 of dust collection device 4 are inserted into the pair of holes 341.

[0046] (2.3.2) Configuring the Second Connector Next, the second connector 44 will be described in detail. As shown in Fig. 1, the dust collecting device 4 has the second connector 44. The second connector 44 is provided at a lower part of the rear end of the housing 41 of the dust collecting device 4. The second connector 44 is electrically connected to the first connector 3 of the power tool 2.

[0047] As shown in Fig. 2, the second connector 44 has a pair of convex terminals 441, a pair of guide protrusions 442, a pair of claw portions 443, and a pair of operation portions 444 (see Fig. 5). The pair of convex terminals 441, the pair of guide protrusions 442, the pair of claw portions 443, and the pair of operation portions 444 are arranged side by side in the left-right direction. In addition, in a plan view from the front-rear direction, the pair of claw portions 443 are arranged between the pair of guide protrusions 442, and the pair of convex terminals 441 are arranged between the pair of claw portions 443. In addition, in a plan view from the front-rear direction, the pair of claw portions 443 are arranged between the pair of operation portions 444.

[0048] The convex terminal 441 protrudes in the rear direction (first direction) which is the direction in which the convex terminal 441 is inserted into the first connector 3. The convex terminal 441 is flat and has a thickness in the left-right direction. The convex terminal 441 is made of a metal such as copper and is conductive. As shown in FIG. 5, the convex terminal 441 comes into contact with the spring terminal 331 of the power tool 2, whereby the second connector 44 is electrically connected to the first connector 3.

[0049] 2, the pair of guide protrusions 442 are formed along the front-rear direction and protrude toward each other in the left-right direction. The pair of guide protrusions 442 are inserted into the pair of guide grooves 241 of the power tool 2.

[0050] 5, the pair of claws 443 are portions that are caught in the pair of recesses 242 of the power tool 2. By the pair of claws 443 being caught in the pair of recesses 242, it is possible to make it difficult for the second connector 44 to come off from the first connector 3.

[0051] The pair of operating parts 444 are operating parts that release the engagement between the pair of claw parts 443 and the pair of recesses 242. When the operator presses the pair of operating parts 444, the pair of claw parts 443 move toward each other against the spring force of the pair of springs 445. When the pair of claw parts 443 move toward each other, the engagement between the pair of claw parts 443 and the pair of recesses 242 is released.

[0052] (2.4) Dust collector Next, details of the dust collecting device 4 according to this embodiment will be described with reference to FIGS.

[0053] As shown in FIG. 6, the dust collecting device 4 includes a housing 41, a suction part 42, a connecting part 43, a motor 45, a fan 46, and a dust collecting container 5.

[0054] The suction unit 42 is a part that sucks up dust. The shape of the suction unit 42 is a cylinder having an L-shaped cross section. The suction unit 42 has an inlet portion 421, a transfer portion 425, a slide portion 426, and a hose 427.

[0055] The inlet portion 421 is cylindrical and extends in the front-rear direction. The bottom surface of the inlet portion 421 is open. The opening at the front end of the inlet portion 421 functions as a suction port 422. A rubber cover 423 is attached to the opening at the rear end of the inlet portion 421.

[0056] The rubber cover 423 has a circular shape in a plan view from the front-rear direction. A hole 424 is provided in the center of the rubber cover 423. A tip tool such as a drill bit 6 is passed through the hole 424. When the dust collector 4 is attached to the power tool 2, the tip of the tip tool such as the drill bit 6 penetrates the rubber cover 423 and protrudes forward from the suction port 422.

[0057] The shape of the transfer part 425 is a cylinder having an L-shaped cross section. The upper end of the transfer part 425 is connected to the opening on the lower surface of the inlet part 421, and the internal space of the transfer part 425 is continuous with the internal space of the inlet part 421. In addition, the rear end of the transfer part 425 is connected to the hose 427.

[0058] The slide portion 426 is cylindrical and extends along the front-rear direction. The inner diameter of the slide portion 426 is larger than the outer diameter of the opening at the rear end of the transport portion 425. The slide portion 426 is connected to the rear surface of the transport portion 425 so as to surround the rear end of the transport portion 425 in a plan view from the front-rear direction.

[0059] The rear end of the slide portion 426 is accommodated in an opening provided in the front surface of the upper part of the housing 41, and is provided on the housing 41 so as to protrude forward from the front surface of the housing 41. The slide portion 426 is supported so as to be movable in the front-rear direction relative to the housing 41. The slide portion 426 is configured so that when it moves rearward, the amount of protrusion forward from the housing 41 becomes smaller, and when it moves forward, the amount of protrusion forward from the housing 41 becomes larger. The movement of the slide portion 426 in the front-rear direction is guided by a guide mechanism provided on the inner wall of the housing 41.

[0060] The hose 427 is a bellows-shaped hose. The hose 427 extends along the front-rear direction and is expandable and contractable in the front-rear direction. That is, the hose 427 is expandable and contractable in response to the movement of the slide portion 426 in the front-rear direction. A front portion of the hose 427 is accommodated inside the slide portion 426, and a rear portion of the hose 427 is accommodated inside the housing 41. A front end of the hose 427 is connected to a rear end of the transfer portion 425, and the internal space of the hose 427 and the internal space of the transfer portion 425 are continuous. In addition, a rear end of the hose 427 is connected to the coupling portion 43.

[0061] The housing 41 constitutes the outer shell of the dust collecting device 4. The housing 41 is shaped like a box having openings on the bottom and the front of the upper part. The housing 41 accommodates the connecting part 43, the motor 45, the fan 46, and the dust collecting container 5. In addition, as described above, the second connector 44 is provided on the lower part of the rear end of the housing 41.

[0062] The shape of connecting part 43 is a cylinder with an L-shaped cross section. The front end of connecting part 43 is connected to the rear end of hose 427, and the internal space of connecting part 43 is continuous with the internal space of hose 427. In addition, the lower end of connecting part 43 is continuous with air intake port 511 at the upper end of dust collection container 5.

[0063] The motor 45 is a drive source of the dust collection device 4. The motor 45 is accommodated in the motor accommodating space 411 of the housing 41. The motor accommodating space 411 is a space formed to cover the front of the exhaust port 512 of the dust collection container 5. The rotating shaft of the motor 45 extends in the left-right direction. A fan 46 is fixed to the tip (right end) of the rotating shaft of the motor 45. The motor 45 is electrically connected to a convex terminal 441 of the second connector 44, and is driven by power supplied from the battery pack 27 of the power tool 2.

[0064] The motor 45 is driven to rotate, thereby rotating the fan 46. The rotation of the fan 46 causes the air in the motor housing space 411 to be exhausted to the outside from the exhaust port of the housing 41. This lowers the air pressure in the motor housing space 411, and the air around the suction port 422 of the suction unit 42 is sucked into the motor housing space 411 via the internal space of the suction unit 42 (the inlet portion 421, the transfer portion 425, and the hose 427), the connection portion 43, and the dust collection container 5. As a result, dust generated when the drill bit 6 processes the workpiece is transported to the dust collection container 5 together with the sucked air. Then, the air and the dust are separated by the filter portion 52 of the dust collection container 5, and the dust is accumulated inside the dust collection container 5.

[0065] (2.4.1) Dust collection container Next, the dust-collection container 5 according to this embodiment will be described in detail.

[0066] The dust collection container 5 is a container that separates the air sucked in by the dust collector 4 from dust and collects (i.e., stores) the dust. The dust collection container 5 is disposed inside the housing 41, below the connecting portion 43 and at the rear of the motor accommodating space. When the dust collection container 5 is accommodated in the housing 41, the lower portion of the dust collection container 5 is exposed to the outside of the housing 41 and forms part of the outer shell of the housing 41 (see FIG. 1). The dust collection container 5 can be inserted into and removed from the inside of the housing 41 (detachable) through an opening on the bottom surface of the housing 41.

[0067] As shown in FIGS. 7 and 8, the dust-collecting container 5 includes a storage portion 51, a filter portion 52, a frame portion 53, a connection portion 54, a fixing portion 55, and a release operation portion 56.

[0068] The shape of the storage unit 51 is a trapezoidal box when viewed from the left-right direction. The longitudinal direction of the storage unit 51 is along the up-down direction. In other words, the longitudinal direction of the storage unit 51 and the internal space Sp1 is along the direction in which dust accumulates. The storage unit 51 stores the dust captured by the filter unit 52 in the internal space Sp1.

[0069] The storage section 51 has an intake port 511, an exhaust port 512, a frame section 513, and a pair of stopper sections 514 (see FIG. 8).

[0070] The air intake port 511 is a rectangular opening, and is formed on the upper surface of the storage portion 51. The air intake port 511 is connected to the lower end of the connecting portion 43 (see FIG. 5), and the internal space Sp1 of the storage portion 51 and the internal space of the connecting portion 43 are continuous with each other.

[0071] The exhaust port 512 is a rectangular opening and is formed on the front surface of the storage unit 51. The longitudinal direction of the exhaust port 512 is along the up-down direction when viewed from the front-rear direction. As described above, the front of the exhaust port 512 is covered by the motor accommodating space 411, and the internal space Sp1 of the storage unit 51 and the internal space of the motor accommodating space 411 are continuous with each other via the filter unit 52.

[0072] The frame portion 513 is a rectangular frame that forms the exhaust port 512 on the front surface of the storage portion 51 .

[0073] The pair of stopper portions 514 are portions for preventing the dust collection container 5 from falling out of the opening on the bottom surface of the housing 41 when the dust collection container 5 is placed inside the housing 41. One of the pair of stopper portions 514 is provided at the bottom end of the left surface of the storage portion 51, and the other of the pair of stopper portions 514 is provided at the bottom end of the right surface of the storage portion 51. In the following description, when there is no need to distinguish between the pair of stopper portions 514, each of the pair of stopper portions 514 will be referred to as stopper portion 514.

[0074] The stopper portion 514 has a release operation portion 515, a protrusion 516, and a claw portion 517. The release operation portion 515 has a rectangular flat plate shape. The protrusion 516 protrudes upward from the upper end of the release operation portion 515. The protrusion 516 has a rectangular flat plate shape. The claw portion 517 protrudes in the left-right direction from the upper end of the protrusion 516. Each of the pair of claw portions 517 of the pair of stopper portions 514 protrudes away from each other along the left-right direction. The claw portion 517 of the stopper portion 514 provided on the left surface of the storage portion 51 protrudes in the left direction, and the claw portion 517 of the stopper portion 514 provided on the right surface of the storage portion 51 protrudes in the right direction. The pair of claw portions 517 of the pair of stopper portions 514 are caught on the housing 41, so that the dust collection container 5 does not fall out of the opening on the bottom surface of the housing 41. In addition, when the operator presses the pair of release operating portions 515 of the pair of stopper portions 514 in the left-right direction, the engagement between the pair of claw portions 517 and the housing 41 is released, and the dust collection container 5 can be removed from the housing 41.

[0075] Filter unit 52 is attached to storage unit 51 so as to close exhaust port 512 of storage unit 51 (see FIG. 5). Filter unit 52 allows air to pass through and captures dust. That is, filter unit 52 separates air from dust. Filter unit 52 is, for example, a HEPA (High Efficiency Particulate Air) filter. Filter unit 52 has a filter body 521 and a frame portion 522 (outer edge).

[0076] Filter body 521 is formed by folding a filter made of, for example, paper in a folding screen (accordion-like folding). The upper and lower ends of the front end of filter body 521 are attached to frame 522, for example by gluing. Frame 522 is a rectangular frame. The longitudinal direction of frame 522 is along the up-down direction when viewed from the front-rear direction. Frame 522 surrounds the top, bottom, left and right of the front end portion of filter body 521.

[0077] The frame portion 53 is attached to the front side of the frame portion 513 of the storage portion 51. The frame portion 53 is connected to the storage portion 51 by the connection portion 54 in a rotatable state. More specifically, when the frame portion 53 is not fixed to the storage portion 51 by the fixing portion 55, the frame portion 53 is rotatable about the rotation axis 541 of the connection portion 54. The frame portion 53 fixes the filter portion 52 to the storage portion 51 by sandwiching the frame portion 522 (outer edge) of the filter portion 52 between the frame portion 53 and the storage portion 51. In the present disclosure, the direction in which the filter portion 52 is sandwiched between the frame portion 53 and the storage portion 51 (the direction in which the base portion 531 of the frame portion 53, the frame portion 522 of the filter portion 52, and the frame portion 513 of the storage portion 51 are aligned) may be referred to as the "sandwiching direction". With the frame portion 53 and the storage portion 51 sandwiching the frame portion 522 of the filter portion 52, the frame portion 53 is fixed to the storage portion 51 by the fixing portion 55, so that the storage portion 51, the filter portion 52, and the frame portion 53 function as a dust collection container 5.

[0078] The frame portion 53 has a base portion 531 , a first protruding portion 532 , and a second protruding portion 533 .

[0079] The base 531 is shaped like a rectangular frame. The longitudinal direction of the base 531 is along the up-down direction when viewed from the front-rear direction. The base 531 forms a rectangular opening 534. The first protrusion 532 protrudes forward from the left end to the right end of the lower end of the base 531. The first protrusion 532 is shaped like a rectangular plate. The second protrusion 533 protrudes downward from the left end to the right end of the lower end of the first protrusion 532. The second protrusion 533 is shaped like a rectangular plate.

[0080] The connecting portion 54 connects the frame portion 53 and the storage portion 51. More specifically, the connecting portion 54 supports the frame portion 53 in a rotatable state when the frame portion 53 is not fixed to the storage portion 51. The connecting portion 54 has a rotating shaft 541 and a bearing 542.

[0081] The rotating shaft 541 is provided at the upper end of the frame portion 513 of the storage portion 51. The rotating shaft 541 is a columnar or cylindrical shaft extending along the left-right direction. In other words, the rotating shaft 541 extends along the short direction of the storage portion 51. The rotating shaft 541 is a shaft for connecting the frame portion 53 in a rotatable state. A bearing 542 (see FIG. 5) provided in the frame portion 53 is connected to the rotating shaft 541.

[0082] Bearing 542 is provided at the upper end of base 531 of frame portion 53. In other words, bearing 542 is provided at one of a pair of short sides of base 531 of frame portion 53. Bearing 542 has a cylindrical shape extending in the left-right direction. By passing rotating shaft 541 through bearing 542, frame portion 53 is connected to storage portion 51 in a rotatable state.

[0083] The fixing part 55 fixes the frame part 53 to the storage part 51 in a state in which the frame part 53 and the storage part 51 sandwich the frame part 522 (outer edge) of the filter part 52. The fixing part 55 has a fixed shaft 551 and a clamping part 552.

[0084] Fixed shaft 551 is provided at the lower part of frame portion 513 of storage unit 51. Fixed shaft 551 is a columnar or cylindrical shaft extending along the left-right direction. In other words, fixed shaft 551 extends along the short side direction of storage unit 51. Fixed shaft 551 is a shaft for fixing frame portion 53 to storage unit 51. Fixed shaft 551 is clamped by clamping portion 552 (see FIG. 5) provided on frame portion 53.

[0085] The clamping portion 552 is provided at the center of the rear surface of the second protruding portion 533 of the frame portion 53. As shown in FIG. 5, the shape of the clamping portion 552 is U-shaped when viewed from the left-right direction. The pair of protruding portions of the clamping portion 552 protrude rearward and are formed so as to approach each other as they move rearward when viewed from the left-right direction. The clamping portion 552 is pushed rearward along the rotation direction of the frame portion 53, so that the fixed shaft 551 fits between the pair of protruding portions of the clamping portion 552. The pair of protruding portions sandwich the fixed shaft 551 from above and below, so that the frame portion 53 is fixed to the storage portion 51.

[0086] In this embodiment, the fixing portion 55 and the connecting portion 54 are provided to sandwich the opening 534 along the longitudinal direction of the opening 534 in a plan view from the sandwiching direction or the front-rear direction. In this embodiment, the frame portion 53, the connecting portion 54, and the fixing portion 55 form a filter holding portion that holds the filter portion 52.

[0087] The release operation part 56 is formed at the center of the lower end of the second protruding part 533 of the frame part 53. In other words, the release operation part 56 is provided at a position aligned with the connection part 54 and the fixed part 55 through the opening 534 in a plan view from the front-rear direction in a state in which the frame part 53 and the storage part 51 sandwich the frame part 522 of the filter part 52. The release operation part 56 is formed along the left-right direction and protrudes downward. When the clamping part 552 is in a state in which it clamps the fixed shaft 551 (see FIG. 5), if an operator applies a force to the release operation part 56 in the forward direction along the rotation direction of the frame part 53, the fixed shaft 551 is pulled out from between the pair of protruding parts of the clamping part 552. That is, the release operation part 56 is a part for performing an operation to release the fixed state between the frame part 53 and the storage part 51.

[0088] (3) Effects As described above, the power tool system 1 of the present embodiment includes the power tool 2 and the dust collector 4. The power tool 2 has the first connector 3, and the dust collector 4 has the second connector 44. The second connector 44 has the convex terminal 441 protruding in the rear direction. The first connector 3 also has the spring terminal 331 and the movement restricting portion 321. The spring terminal 331 and the movement restricting portion 321 are configured to be able to hold the convex terminal 441 along the left-right direction. The spring terminal 331 and the convex terminal 441 are electrically connected to each other by contacting the conductive spring terminal 331 with the conductive convex terminal 441. In the present embodiment, the spring terminal 331 supplies power to the convex terminal 441. The movement restricting portion 321 restricts the movement of the convex terminal 441 along the left-right direction. This reduces the vibration of the spring terminal 331. By reducing the vibration of the spring terminal 331, the life of the spring terminal 331 can be extended.

[0089] Moreover, the movement restricting portion 321 and the spring terminal 331 are configured to sandwich the convex terminal 441 along the left-right direction. By sandwiching the convex terminal 441 between the movement restricting portion 321 and the spring terminal 331, the holding force of the convex terminal 441 can be improved.

[0090] Moreover, the shape of the convex terminal 441 is a flat plate having a thickness along the left-right direction. The movement restricting portion 321 and the spring terminal 331 sandwich the flat convex terminal 441 having a thickness along the left-right direction in the left-right direction, so that the holding force of the convex terminal 441 can be improved.

[0091] Further, a tapered portion 325 is formed at the tip (front end) of the movement restricting portion 321 (second protruding portion 324). The tapered portion 325 is inclined in a direction such that the width of the tapered portion 325 in the left-right direction becomes smaller as it approaches the tip. The tapered portion 325 functions as a guide, making it easy to insert the convex terminal 441 between the movement restricting portion 321 and the spring terminal 331.

[0092] The dust collecting device 4 of this embodiment includes a dust collecting container 5 and a motor 45. The dust collecting container 5 of this embodiment includes a filter portion 52, a storage portion 51, a frame portion 53, a connection portion 54, and a fixing portion 55. The connection portion 54 of this embodiment connects the frame portion 53 and the storage portion 51. The fixing portion 55 fixes the frame portion 53 to the storage portion 51 in a state in which the frame portion 53 and the storage portion 51 sandwich the frame portion 522 (outer edge) of the filter portion 52. The connection portion 54 supports the frame portion 53 in a state in which the frame portion 53 can rotate when the frame portion 53 is not fixed to the storage portion 51. In the dust collecting container 5 of this embodiment, the frame portion 53 and the storage portion 51 can be fixed in a state in which the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52, so that the filter portion 52 can be firmly held. In addition, since the frame portion 53 is supported by the connection portion 54 in a rotatable state when not fixed to the storage portion 51, there is no need to have multiple fixing portions 55, making it easier to remove the filter portion 52.

[0093] Moreover, the dust collection container 5 of this embodiment is provided with a release operation part 56. The release operation part 56 is a part for operating to release the fixed state between the frame part 53 and the storage part 51 by the fixing part 55. By providing the dust collection container 5 with the release operation part 56, the fixed state between the frame part 53 and the storage part 51 can be easily released, and therefore, the filter part 52 can be more easily removed.

[0094] In addition, in the present embodiment, the connecting portion 54 and the fixing portion 55 are provided to sandwich the opening 534 of the frame portion 53 along the longitudinal direction of the frame portion in a plan view from the sandwiching direction. This makes it possible to hold the filter portion 52 more firmly.

[0095] (4) Variations The above embodiment is merely one of various embodiments of the present disclosure. The above embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0096] The second connector 44 of the dust collector 4 may have the case 31, the resin member 32, the conductive part 33, and the dustproof part 34 instead of the convex terminal 441. That is, the second connector 44 may have the movement restricting part 321 and the spring terminal 331. The first connector 3 of the power tool 2 may have the convex terminal 441 instead of the case 31, the resin member 32, the conductive part 33, and the dustproof part 34. When the first connector 3 of the power tool 2 has the convex terminal 441 and the second connector 44 of the dust collector 4 has the movement restricting part 321 and the spring terminal 331, power is supplied from the convex terminal 441 to the spring terminal 331. Note that even when the first connector 3 of the power tool 2 has the convex terminal 441 and the second connector 44 of the dust collector 4 has the movement restricting part 321 and the spring terminal 331, the life of the spring terminal 331 can be extended, as in the above embodiment.

[0097] It is sufficient that the connecting portion 54 can connect the frame portion 53 to the storage portion 51 while the frame portion 53 is rotatable. For example, a rotation shaft may be provided on the frame portion 53, and a bearing may be provided on the storage portion 51. Furthermore, the connecting portion 54 may be multiple.

[0098] Fixing portion 55 may be capable of fixing frame portion 53 to storage portion 51 in a state in which frame portion 53 and storage portion 51 sandwich frame portion 522 of filter portion 52. For example, a fixing shaft may be provided on frame portion 53, and a clamping portion may be provided on storage portion 51. Fixing portion 55 is not limited to having a fixing shaft and a clamping portion, and may have, for example, a claw portion and a recess or a hole.

[0099] In the above embodiment, in a plan view from the front-rear direction in a state where the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52, the connection portion 54 is located above the opening 534 and the fixing portion 55 is located below the opening 534, but this is not limited to the above. For example, in a plan view from the front-rear direction in a state where the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52, the connection portion 54 may be located below the opening 534 and the fixing portion 55 may be located above the opening 534. In addition, in a plan view from the front-rear direction in a state where the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52, the connection portion 54 may be located to the right of the opening 534 and the fixing portion 55 may be located to the left of the opening 534. When the connection portion 54 is located to the right or left of the opening 534, the rotation axis 541 of the connection portion 54 becomes a column or cylinder extending in the vertical direction, and the bearing 542 becomes a cylinder extending in the vertical direction.

[0100] In the above embodiment, the connecting portion 54 and the fixing portion 55 are provided to sandwich the opening 534 in a plan view from the front-to-rear direction in a state in which the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52, but this is not limited to the above. For example, the connecting portion 54 may be located above the opening 534 and the fixing portion 55 may be located to the left of the opening 534 in a plan view from the front-to-rear direction in a state in which the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52.

[0101] Furthermore, in a plan view from the front-to-rear direction in a state in which the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52, it is not essential that the release operation portion 56 is provided below the opening 534. However, the release operation portion 56 is preferably provided in the vicinity of the fixing portion 55. For example, when the fixing portion 55 is provided to the right of the opening 534 in a plan view from the front-to-rear direction in a state in which the frame portion 53 and the storage portion 51 sandwich the frame portion 522 of the filter portion 52, it is preferable that the release operation portion 56 is also provided to the right of the opening 534.

[0102] Moreover, the dust collection container 5 may have a plurality of fixing parts 55. By providing a plurality of fixing parts 55, the filter part 52 can be held more firmly.

[0103] The filter holding portion may include at least one of the storage portion 51 and the release operation portion 56 in its configuration.

[0104] The power tool 2 may be a power tool other than a hammer drill, such as a drill driver or an impact driver.

[0105] (summary) As described above, the power tool system (1) according to the first aspect includes the power tool (2) and the dust collecting device (4). The dust collecting device (4) is configured to be attachable to the power tool (2) and collects dust. The power tool (2) has a first connector (3). The first connector (3) supplies power to the dust collecting device (4). The dust collecting device (4) has a second connector (44). The second connector (44) is electrically connected to the first connector (3) of the power tool (2). One of the first connector (3) and the second connector (44) has a convex terminal (441). The convex terminal (441) protrudes in a first direction, which is a direction in which the first connector (3) and the second connector (44) are inserted into the other of the first connector (3) and the second connector (44). The other of the first connector (3) and the second connector (44) has a spring terminal (331) and a movement restricting portion (321). The spring terminal (331) and the movement restricting portion (321) are configured to be capable of holding the convex terminal (441) along a second direction perpendicular to the first direction. The spring terminal (331) is conductive and is electrically connected to the convex terminal (441). The movement restricting portion (321) restricts movement of the convex terminal (441) along the second direction.

[0106] According to this aspect, for example, when the power tool (2) is driven and vibrates, the movement restricting portion (321) restricts movement of the convex terminal (441) in the second direction due to the vibration, thereby reducing the vibration of the spring terminal (331). This makes it possible to extend the life of the spring terminal (331).

[0107] In the power tool system (1) according to the second aspect, in the first aspect, the movement restricting portion (321) and the spring terminal (331) are configured to sandwich the convex terminal (441) along the second direction.

[0108] According to this embodiment, the convex terminal (441) is sandwiched between the movement restricting portion (321) and the spring terminal (331), thereby improving the holding force of the convex terminal (441).

[0109] In the power tool system (1) according to the third aspect, in the second aspect, the shape of the convex terminal (441) is a flat plate having a thickness along the second direction.

[0110] According to this embodiment, the convex terminal (441) is sandwiched between the movement restricting portion (321) and the spring terminal (331) in the thickness direction of the convex terminal (441), thereby further improving the holding force of the convex terminal (441).

[0111] In the power tool system (1) according to a fourth aspect, in any one of the first to third aspects, the movement restricting portion (321) has a tapered portion (325). The tapered portion (325) is formed at a tip of the movement restricting portion (321) in a direction along the first direction. The tapered portion (325) is inclined such that the width of the tapered portion (325) in the second direction decreases toward the tip.

[0112] According to this embodiment, the movement restricting portion (321) has the tapered portion (325), which makes it easier to insert the convex terminal (441), for example, between the movement restricting portion (321) and the spring terminal (331).

[0113] The configurations other than the first aspect are not essential to the power tool system (1) and may be omitted as appropriate.

[0114] A power tool (2) according to a fifth aspect is used in the power tool system (1) according to any one of the first to fourth aspects. The power tool (2) has a first connector (3). The first connector (3) has a spring terminal (331) and a movement restricting portion (321).

[0115] According to this aspect, for example, when the power tool (2) is driven and vibrates, the movement restricting portion (321) restricts movement of the convex terminal (441) in the second direction due to the vibration, thereby reducing the vibration of the spring terminal (331). This makes it possible to extend the life of the spring terminal (331).

[0116] A dust collecting device (4) according to a sixth aspect is used in the power tool system (1) according to any one of the first to fourth aspects. The dust collecting device (4) has a second connector (44). The second connector (44) has a spring terminal (331) and a movement restricting portion (321).

[0117] According to this aspect, for example, when the power tool (2) is driven and vibrates, the movement restricting portion (321) restricts movement of the convex terminal (441) in the second direction due to the vibration, thereby reducing the vibration of the spring terminal (331). This makes it possible to extend the life of the spring terminal (331). [Explanation of symbols]

[0118] 1 Power Tool System 2 Power tools 3 First Connector 321 Movement Control Department 325 Tapered section 331 Spring terminal 4 Dust collector 44 2nd Connector 441 Convex terminal

Claims

1. Power tools and A dust collecting device configured to be attached to the power tool and configured to collect dust; Equipped with The power tool has a first connector that supplies power to the dust collection device, the dust collecting device has a second connector electrically connected to the first connector of the power tool, one of the first connector and the second connector has a convex terminal that protrudes in a first direction that is a direction in which the first connector and the second connector are inserted into the other of the first connector and the second connector; the other of the first connector and the second connector has a spring terminal and a movement restricting portion configured to be able to hold the convex terminal along a second direction perpendicular to the first direction, the spring terminal is electrically conductive and electrically connected to the protruding terminal; The movement restricting portion restricts movement of the convex terminal along the second direction, The second connector has a pair of claws, The electric power tool has a pair of recesses configured to hook the pair of claw portions, the pair of claws and the pair of recesses are aligned with the spring terminal and the movement restricting portion in the second direction so as to sandwich the spring terminal and the movement restricting portion when the first connector and the second connector are connected to each other; Power tool system.

2. The movement restricting portion and the spring terminal are configured to sandwich the convex terminal along the second direction. The power tool system of claim 1 .

3. The shape of the convex terminal is a flat plate having a thickness along the second direction. The power tool system of claim 2 .

4. The movement restricting portion has a tapered portion, The tapered portion is a tip end of the movement restricting portion in a direction along the first direction, The tapered portion is inclined so that the width of the tapered portion along the second direction becomes smaller as the tapered portion approaches the tip. The power tool system according to any one of claims 1 to 3.

5. A power tool system according to any one of claims 1 to 4, The first connector is provided. The first connector is The spring terminal and the movement restricting portion are provided. Power tools.

6. A power tool system according to any one of claims 1 to 4, The second connector is provided. The second connector is The spring terminal and the movement restricting portion are provided. Dust collection device.

Images