JP6660572B2 - Connection device - Google Patents

Description

The present invention relates to a connection device, and more particularly to a connection device connectable to a power tool body.

BACKGROUND ART Conventionally, there is widely known a working tool for performing operations such as drilling and hitting a work material such as concrete using a tip tool driven by a drive source. Various connecting devices such as a battery for enabling cordless work and an auxiliary device for improving work efficiency may be detachably connected to such a work tool. For example, Patent Document 1 discloses a drilling tool capable of connecting a dust collecting device to a tool body as an example of a connecting device.

JP 2010-201526 A

When performing work while the connection device is connected to the power tool, force may be applied in a direction that causes the connection device to move relative to the power tool body due to vibration or the like caused by the driving of the accessory tool. There was a problem of getting worse.

The present invention has been made in view of the above background, and an object of the present invention is to provide a connection device in which a connection portion with a work tool is more firmly fixed, so that the connection device is less likely to relatively move with respect to the connected work tool. That is.

In order to solve the above-mentioned problems, the present invention provides a housing having a connection portion detachably connected to a power tool body, and a locking position for locking to the power tool body and connecting the connection portion to the power tool body. A locking portion having a locking claw movable to a non-locking position where the locking to the work tool body is released and the connection is released, and a locking portion for maintaining the locking claw in the locking position. A biasing member for biasing, an operating portion for moving the locking claw from the locking position to the unlocking position against the biasing force of the biasing member, and an operating portion for moving the locking claw from the locking position to the unlocking position. A restricting portion capable of restricting the movement , wherein the restricting portion is configured to allow a movement of the locking claw from the locked position to the non-locked position by an operation of an operator; The state can be switched to a regulation state in which the movement of the pawl from the locking position to the non-locking position is restricted. Parts are in a state operation is not the operator, to provide a connection device which is a sustainable respectively and the restriction condition and the allowable state.

According to such a configuration, it is possible to restrict the movement of the locking claw from the locking position to the non-locking position, that is, to provide the restricting portion capable of maintaining the locking claw in the locking position. . Therefore, even if the operation of the operation unit is performed, the locking between the locking claw and the power tool body is not released, and the connection between the connection device and the power tool body can be maintained more firmly. Therefore, operability can be improved. Further, when the work is performed using the work tool in a state where the connection device is connected, the connection device connected to the work tool main body relatively moves, such as a rotational moment around the connection portion between the two, due to vibration or the like. The force may act in such a direction. However, even in such a case, if a restricting portion capable of maintaining the connection between the connection device and the power tool is provided as in the present invention, the relative movement between the connection device and the power tool body can be suppressed. Can be.

Further, in the above configuration, the regulating portion has a screwing mechanism having a male screw member and a female screw member that can be screwed together, and the screwing mechanism is in a state where the male screw member and the female screw member are screwed together. It is preferable that the locking state is established and the locking claw can be maintained at the locking position.

According to such a configuration, the locking claw can be easily maintained at the locking position only by screwing the male screw member and the female screw member.

Further, in the above configuration, when the screwing amount between the male screw member and the female screw member is equal to or more than a predetermined amount, the screwing mechanism is in the regulated state, and the locking claw is engaged even when the operation of the operation portion is performed. The amount of movement of the locking claw is regulated so as to be maintained at the stop position, and when the screwing amount is less than a predetermined amount, the allowable state is set, and the locking claw can move between the locked position and the unlocked position. It is preferable to restrict the amount of movement of the locking claw.

According to such a configuration, it is possible to easily adjust the moving amount of the locking claw only by changing the screwing amount between the male screw member and the female screw member. That is, without completely releasing the screw engagement between the male screw member and the female screw member, the locking claw is maintained in the locking position while being screwed, or the locking claw is Whether the operator can move between the locked position and the unlocked position can be appropriately selected by an operator according to the work content and work environment, and can be easily changed. That is, since the operator can easily change whether to maintain the connection of the connection device to the power tool body, the workability can be improved. Such a configuration is particularly effective when it is necessary to frequently connect / disconnect the connecting device to / from the power tool body.

Further, in the above configuration, in the allowable state where the screwing amount is less than the predetermined amount, the operating portion is operated to rotate the locking portion in a predetermined direction against the urging force of the urging member. It is preferable that the locking claw move from the locking position to the non-locking position by the rotation.

According to such a configuration, when the screwing amount between the male screw member and the female screw member is less than the predetermined amount, the operating portion is operated to rotate the locking portion in the predetermined direction, and As a result, the locking claw moves from the locking position to the non-locking position. In other words, if the amount of screwing between the male screw member and the female screw member is less than the predetermined amount, even if the male screw member and the female screw member are still screwed together, the operating portion is operated to lock. The pawl can be moved from the locked position to the unlocked position. That is, it is not necessary to release the screwing between the male screw member and the female screw member in order to disconnect the connection device from the power tool main body, so that operability is not impaired.

Further, in the above configuration, a pair of locking portions are provided so as to face each other, and the power tool main body is located between the pair of locking portions in a state where the locking claws are locked to the power tool body, More preferably, a pair of regulating portions are provided corresponding to the pair of locking portions.

According to such a configuration, when the locking claw is at the locking position, that is, when the locking claw is locked to the work tool body, the connected work tool body is connected to the pair of locking portions. Placed between. Therefore, compared with the case where the locking claw is locked only at one position with respect to the power tool main body, the locking claw is locked with the power tool main body on both sides of the power tool main body, so that Thus, the connection devices can be connected in a more balanced manner. Further, relative movement between the connection device and the power tool main body can be suppressed more reliably.

Preferably, the connection device is a dust collection device that collects dust generated by the operation of the power tool body.

According to such a configuration, even if dust or the like is generated during the work performed using the work tool, the dust and the like generated by the connected dust collection device are sucked and collected, thereby improving work efficiency. it can.

Further, the restricting portion further includes a restricting member which can restrict the movement of the locking claw from the locking position to the non-locking position, and the screwing mechanism fixes the restricting member to the housing to adjust the restricting state. it is preferable to keep the next locking pawl in the locking position.

According to such a configuration, the screwing mechanism can regulate movement of the locking claw from the locked position to the non-locked position via the restricting member. Therefore, even in a case where it is difficult for the screwing mechanism to directly restrict the movement of the locking claw, it is possible to restrict the movement of the locking claw from the locked position to the non-locked position. It becomes possible.

Further, in the above configuration, the connection portion has a pair of rail portions that can be engaged with the main body connection portion of the power tool body, and a pair of locking portions is provided corresponding to each of the pair of rail portions. The locking claw is configured to advance on the movement trajectory of the main body connection portion at the locking position, and retract from the movement trajectory of the main body connection portion at the non-locking position, and the regulating member abuts on each of the pair of locking portions. It is possible to restrict the movement of the locking claw from the locking position to the non-locking position by abutting, and the screwing mechanism fixes the restricting member to the housing by screwing to the restricting state. it is preferable to maintain the respective next locking claw to the locking position.

According to such a configuration, even when the locking portion is provided in a pair, the two locking portions can be engaged with one screwing mechanism by interposing the regulating member capable of contacting each locking portion. The stop position can be maintained. Also, relative movement between the connecting device and the power tool main body can be more reliably prevented as compared with the case where only one locking portion is provided.

A first position for retracting the locking claw from the locked position to the non-locked position by retracting from a movement trajectory of the locking portion from the locked position to the unlocked position; It is preferable to have a slide member supported by the housing so as to move to the movement locus and to a second position for restricting the movement of the locking claw from the locked position to the unlocked position.

According to such a configuration, the regulating portion is a simple mechanism using the slide member, and can regulate and allow the movement of the locking claw from the locking position to the non-locking position, thereby improving operability. Can be achieved.

Preferably, the connection device is a battery that can supply power to the power tool body.

According to such a configuration, the connection between the battery capable of supplying power to the power tool body and the power tool body can be made stronger, and more stable and continuous power supply to the power tool body is realized. Is done.

Further, it is preferable that the locking claw be locked to the power tool main body by bringing the locking portion close to the power tool main body.

According to such a configuration, the locking claw can be locked to the power tool body only by bringing the locking portion close to the power tool body to be connected. Therefore, the connection device can be easily connected to the power tool body.

The present invention further provides a housing having a connection portion detachably connected to the power tool body, a locking position for locking to the power tool body and connecting the connection portion and the power tool body, and a relation to the power tool body. A locking portion having a locking claw movable to a non-locking position where the locking is released and the connection is released, and a biasing member for biasing the locking portion so as to maintain the locking claw in the locking position. An operating part for moving the locking claw from the locking position to the non-locking position against the urging force of the urging member, and a restriction for restricting the movement of the locking claw from the locking position to the non-locking position. parts and an attachable attachment portion, the regulating unit by operating the operator, and permissive to allow movement to the unlocked position from the locked position of the locking claw, the locking Switching to a restricted state for restricting movement of the pawl from the locked position to the non-locked position; In a state operation is not the operator, to provide a connection device which is a sustainable respectively and the restriction condition and the allowable state.

According to such a configuration, the connection device is provided with the mounting portion to which the restricting portion that can restrict the movement of the locking claw from the locking position to the non-locking position can be mounted. Therefore, by attaching the restricting portion to the mounting portion , it is possible to restrict the movement of the locking claw from the locking position to the non-locking position, that is, to maintain the locking claw at the locking position. Therefore, the connection between the connection device and the power tool main body can be more firmly maintained, and the operability can be improved. Further, when the work is performed using the work tool in a state where the connection device is connected, the connection device connected to the work tool main body relatively moves, such as a rotational moment around the connection portion between the two, due to vibration or the like. The force may act in such a direction. However, even in such a case, the connection device and the power tool main body may be provided as long as the attachment portion capable of mounting the restricting portion capable of maintaining the connection between the connection device and the power tool as in the present invention is provided. Relative movement can be suppressed.
The present invention further provides a housing having a connection portion detachably connected to a hammer drill for applying a striking force and a rotational force to a tool bit, and engaging the hammer drill to connect the connection portion to the hammer drill. A locking portion having a locking claw movable between a locking position and a non-locking position where the locking to the hammer drill is released and the connection is released, and the locking claw is maintained at the locking position. A biasing member for biasing the locking portion, an operating portion for moving the locking claw from the locking position to the non-locking position against a biasing force of the biasing member, and the locking claw A restricting portion capable of restricting the movement of the locking claw from the locking position to the non-locking position by an operation of an operator. Position to allow movement to the position, and It can be switched to a regulation state that regulates movement from a stop position to the non-locking position, and the regulation unit can be maintained in the allowance state and the regulation state, respectively, without the operation of the operator. provides a connection device, characterized in that it.
The present invention further provides a connection device for supplying electric power for driving a motor of a connected power tool body, the housing having a connection portion detachably connected to the power tool body, and the power tool body. And a locking claw that is movable between a locking position that locks the connection portion and connects the work tool body to the work tool body and a non-locking position that releases the lock on the work tool body and releases the connection. A stopper, a biasing member for biasing the locking portion so as to maintain the locking claw in the locking position, and the locking claw against the biasing force of the biasing member. comprising an operation unit for moving from position to the unlocking position, and a restricting portion capable of restricting the movement to the unlocked position from the locked position of the locking claw, the regulating unit, the operator Operation of the locking claw from the locking position to the non-locking position It is possible to switch between an allowable state to allow and a restricted state to restrict the movement of the locking claw from the locked position to the non-locked position, and the restricting portion is in a state where there is no operation of the operator. And a connection device that can be maintained in each of the allowable state and the restricted state .
Further, in the above configuration, the restricting portion is formed separately from the operating portion, and from the state where the movement from the locked position to the unlocked position is restricted by the restricting portion, the operating portion and It is preferable that the connection can be released by moving the locking claw from the locking position to the non-locking position when both of the restricting portions are operated.

ADVANTAGE OF THE INVENTION According to the connection device of this invention, since connection with a power tool main body is maintained firmly, relative movement with respect to the connected power tool does not occur easily, and work efficiency can be improved.

It is an explanatory view showing attachment and detachment to a hammer drill which is an example of a work tool of a dust collector concerning a 1st embodiment of the present invention. It is a longitudinal section showing an internal structure in the state where a dust collection device concerning a 1st embodiment of the present invention was connected to a hammer drill. It is an exploded perspective view for explaining the structure of the housing and the locking member of the dust collector according to the first embodiment of the present invention. FIG. 2 is a side view showing a state in which a male screw member is inserted into the dust collector according to the first embodiment of the present invention, and a state in which the dust collector and a hammer drill are connected. FIG. 5A is an explanatory view showing a state where the male screw member and the female screw member are screwed together and the locking claw is at the locking position, and FIG. 5B is a male screw member. FIG. 8 is an explanatory view showing a state in which the locking claw is in a non-locking position in a state where the locking claw is screwed with the female screw member. FIG. 6A is an explanatory view for explaining the assembling of the male screw member and the female screw member to the housing of the dust collecting device, and FIG. It is explanatory drawing explaining the relationship between the movement of the nail from the locking position to the non-locking position. It is a side view showing the appearance of the battery pack concerning a 2nd embodiment of the present invention. FIG. 8A is an explanatory diagram conceptually illustrating a process of connecting a hammer drill of a battery pack to a battery mounting portion according to a second embodiment of the present invention. FIG. FIG. 8B shows a state in which the locking claw is at a non-locking position. FIG. 9A is a cross-sectional view illustrating a state where the upper housing of the battery pack according to the second embodiment of the present invention is viewed from below, and FIG. 9A illustrates a state where a locking claw is at a locking position; (B) shows a state in which the restricting member for maintaining the locking claw in the locking position and the screwing mechanism are mounted on the upper housing. FIG. 13 is a rear view of a battery pack according to a first modification of the second embodiment of the present invention, which is an explanatory view illustrating movement of a locking claw from a locking position to a non-locking position. In the process of connecting the hammer drill to the battery mounting portion of the battery pack according to the first modification of the second embodiment of the present invention, a conceptual representation of how the locking claw moves from the non-locking position to the locking position is shown. FIG. In the battery pack according to the first modification of the second embodiment of the present invention, a through hole into which a male screw member for maintaining the locking claw in the locking position is inserted, and a male screw member is inserted into the through hole. It is explanatory drawing which shows a state. FIG. 13 is an explanatory diagram illustrating movement of a locking claw from a locking position to a non-locking position in a battery pack according to a second modification of the second embodiment of the present invention. FIG. 13 is an explanatory diagram illustrating movement of a slide member that regulates movement of a locking claw from a locked position to a non-locked position in a battery pack according to Modification 2 of the second embodiment of the present invention. It is a side view showing the appearance of the battery pack concerning modification 3 of a 2nd embodiment of the present invention. FIG. 16A is an explanatory diagram conceptually illustrating a process of connecting a battery pack according to a third modification of the second embodiment of the present invention. FIG. 16A illustrates a state in which a locking claw is at a locking position. FIG. 16B shows a state in which the locking claw is at the unlocked position.

First, a dust collector 1 as an example of a connection device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 6B.

As shown in FIG. 1, the dust collector 1 is detachably connected to a hammer drill 100, which is an example of a power tool. The dust collecting device 1 is a device for sucking and collecting dust generated from a work material by an operation performed by the hammer drill 100 on the work material.

In the following description, “front” indicated by an arrow in FIG. 1 is defined as a forward direction, “rear” is defined as a backward direction, “up” is defined as an upward direction, and “down” is defined as a downward direction. When the dust collector 1 and the hammer drill 100 are viewed from behind, the left is defined as the left direction, and the right is defined as the right direction.

As shown in FIG. 1, the dust collector 1 is connected to the hammer drill 100 from below. First, the configuration of the hammer drill 100 to which the dust collecting device 1 is connected will be briefly described.

The hammer drill 100 includes a main body casing 110 that forms an outer shell thereof. The main body casing 110 is an example of the “work tool main body” in the present invention. As shown in FIGS. 1 and 2, a motor 120 as a drive source is provided in the main body casing 110. A battery connection portion 111 is provided at a lower rear portion of the main body casing 110. The battery pack 6 that supplies electric power for driving the motor 120 is detachably connected to the battery connection unit 111. In addition, a tool mounting portion 112 is provided at a front end portion of the main body casing 110 to which a tip tool 130 such as a drill blade is removably mounted in accordance with a work purpose, and a rear end portion of the main body casing 110, above the battery connection portion 111. Is provided with a handle 113 for the operator to grip. The handle 113 is provided with a trigger switch 114 that can control the driving of the motor 120.

In the hammer drill 100 having the above configuration, when the operator grips the handle 113 and operates the trigger switch 114 in a state where the battery pack 6 is connected to the battery connection unit 111, the motor 120 is driven, and the tool mounting unit 112 Is driven. The operator contacts the driven tip tool 130 with the workpiece, or contacts the workpiece, and then operates the trigger switch 114 to drive the tip tool 130 to thereby reduce the workpiece material. , Three types of work can be performed: rotating, hitting, and rotating hitting. Since the configuration of such a hammer drill 100 is well known, a detailed description thereof will be omitted.

Further, a recess 115, a pair of left and right guide grooves 116, and a pair of left and right locked portions 117 are formed in the main body casing 110 for connection with the dust collecting device 1. The recess 115 is formed on the lower surface of the front part (the part supporting the tool mounting part 112) of the main body casing 110 (see FIG. 2). The pair of left and right guide grooves 116 is formed at the lower part of the left and right side surfaces of the main body casing 110 at positions in front of the battery connection part 111, respectively. Each guide groove 116 has a groove shape recessed inward from the outer surface of each of the corresponding left and right side surfaces of the main body casing 110, and extends vertically. The pair of left and right locked portions 117 are formed at lower portions on both left and right side surfaces of the main body casing 110 at positions forward of the corresponding guide grooves 116 and rearward of the concave portions 115, respectively. Each locked portion 117 has a concave shape depressed inward from the outer surface of each of the corresponding left and right side surfaces of the main body casing 110. The lower surface forming the depression of each locked portion 117 is a surface extending in the front-rear direction and the horizontal direction, and functions as a locking surface E on which a locking claw 44 of the dust collector 1 described later is locked. (See FIG. 5A).

Next, the dust collector 1 connected to the hammer drill 100 having the above configuration will be described. As shown in FIGS. 1 to 4, the dust collecting device 1 includes a housing 2, a slider 3, a locking mechanism 4, and a screwing mechanism 5.

As shown in FIGS. 1 to 3, the housing 2 is an example of the “housing” in the present invention, and has a substantially box shape that is substantially rectangular in a side view. The housing 2 has a front part 2A and a rear part 2B.

As shown in FIG. 2, front portion 2 </ b> A constitutes a portion located forward of hammer drill 100 when dust collection device 1 is connected to hammer drill 100. A dust collecting case 21 for collecting the sucked dust is accommodated in the front part 2A. The dust collecting case 21 is configured to be detachable from the front part 2A. Therefore, the dust accumulated in the dust collecting case 21 can be discarded by removing the dust collecting case 21 from the housing 2. A filter 22 for adsorbing the sucked dust and filtering the sucked air is provided in the dust collecting case 21.

A convex portion 23 is formed on the upper surface 2a of the front portion 2A. The protrusion 23 has a substantially cylindrical shape protruding upward from the upper surface 2a in the vicinity of the rear end of the upper surface 2a. When the dust collecting device 1 is connected to the hammer drill 100, the convex portion 23 is received in the concave portion 115 formed in the main body casing 110 of the hammer drill 100 and fits with the concave portion 115.

The rear part 2B is a part that constitutes the rear part of the housing 2, and is an example of the “connection part” of the present invention. A dust collection motor 24 which is a driving source of the dust collection device 1 is accommodated in the rear portion 2B. The dust collection motor 24 has a rotating shaft 24A. The rotation shaft 24A extends in the front-rear direction, and is rotatably supported on the rear portion 2B. A fan 24B is fixed to a front end of a rotating shaft 24A of the dust collecting motor 24. When the dust collection motor 24 is driven and the fan 24B rotates, the suction force of the dust collection device 1 is generated. The fan 24B substantially faces the filter 22 of the dust collection case 21 in a state where the dust collection case 21 is mounted on the housing 2 (front portion 2A).

As shown in FIG. 3, a pair of support portions 25 and a dust collection terminal portion 26 are provided on the upper surface 2b of the rear portion 2B of the housing 2. The pair of support portions 25 are disposed so as to face each other in the left-right direction, and are provided so as to protrude upward from the upper surface 2b. Each support part 25 has a substantially prismatic shape, and has a height that can contact the bottom surface of the main body casing 110 of the hammer drill 100 from below when the dust collector 1 is connected to the hammer drill 100. I have.

Each support 25 has a first support hole 27 formed therein. Each of the first support holes 27 is a through hole that penetrates a substantially central portion of the support portion 25 in a side view in the left-right direction, and is an example of the “attachment portion” in the present invention. The first support hole 27 has a large-diameter portion 27A and a small-diameter portion 27B (see FIGS. 5A and 5B). The large-diameter portion 27A is a portion that constitutes the inner side in the left-right direction of the first support hole 27, and has a hexagonal shape in a side view (FIG. 3). The small-diameter portion 27B is disposed outside the large-diameter portion 27A in the left-right direction, and forms a left-right outside portion of the first support hole 27. The large diameter portion 27A and the small diameter portion 27B are coaxially arranged in the left-right direction.

As shown in FIG. 2, when the dust collecting terminal 26 is connected to the hammer drill 100, the dust collecting terminal 26 fits with the terminal 118 provided on the bottom surface of the main casing 110. Thereby, the dust collection device 1 and the hammer drill 100 are electrically connected. That is, when the dust collection device 1 is connected to the hammer drill 100, the dust collection device 1 is configured to be able to receive power from the battery pack 6 connected to the hammer drill 100.

Returning to FIG. 3, the rear part 2B has a pair of side walls 28. The pair of side walls 28 connect the left and right upper edges of the upper surface 2b of the rear portion 2B and the left and right rear edges of the front portion 2A, respectively.

Guided portions 29 are formed at the rear ends of both side walls 28, respectively. Each guided portion 29 projects inward in the left-right direction from the inner surface of the rear end of the corresponding side wall 28 and extends in the up-down direction. When the dust collecting device 1 is connected to the hammer drill 100, each guided portion 29 is received in the corresponding guide groove 116 of the main body casing 110 from below. That is, the connection of the dust collecting device 1 to the hammer drill 100 is guided by the guided portion 29 and the guide groove 116.

The slider portion 3 is supported so as to be slidable in the front-rear direction with respect to the front portion 2A of the main body casing 110. As shown in FIG. 2, the slider portion 3 has a substantially L-shape in a side view, and includes a hose accommodating portion 31 extending in the front-rear direction and an adapter portion 32 extending upward from a front end of the hose accommodating portion 31. have. A hose 33 is housed inside the hose housing 31. The hose 33 is configured to be able to expand and contract in the front-rear direction in accordance with the sliding movement of the slider part 3 (hose housing part 31) in the front-rear direction. A space 33 a is defined inside the hose 33, and communicates with the space inside the dust collection case 21 when the dust collection case 21 is mounted on the housing 2. The adapter portion 32 is a portion that comes into contact with the work material at the time of work, and a space 32 a defined therein communicates with a space 33 a in the hose 33. Further, a suction portion 34 having a substantially annular shape as viewed from the rear side is provided at a distal end portion (upper end portion) of the adapter portion 32, and the suction portion 34 has an opening 34a communicating with the space 33a.

The front end (front end) of the tip tool 130 attached to the tool mounting section 112 is arranged at the center of the annular suction section 34. When the hammer drill 100 is driven by bringing the tip of the tip tool 130 and the suction portion 34 into contact with the workpiece in this state, dust and the like generated from the workpiece by the operation of the driven tip tool 130 are discharged from the opening 34a. It is sucked into the slider portion 3. Dust and the like sucked from the opening 34a are carried to the dust collecting case 21 via the space 32a in the adapter 32 and the space 33a in the hose 33, and are accumulated in the dust collecting case 21. Since the filter 22 provided in the dust collecting case 21 captures the dust in the intake air, the sucked dust is reliably stored in the dust collecting case 21 without moving to the dust collecting motor 24 side. The air filtered by the filter 22 is discharged out of the dust collector 1 from an exhaust port (not shown) formed near the fan 24B.

The locking mechanism 4 includes a pair of left and right latch mechanisms 41. The pair of latch mechanisms 41 are provided so as to straddle the corresponding side wall 28 and the side wall of the rear part 2B in the vertical direction.

The latch mechanism 41 can be locked to the hammer drill 100 (the locking surface E of the locked portion 117), and functions to connect the dust collector 1 to the hammer drill 100 by locking. As shown in FIGS. 3 to 6B, each latch mechanism 41 has a locking member 42 and a biasing member 43. The locking member 42 has a substantially rectangular shape extending in the vertical direction when viewed from the side. The locking member 42 is supported by the rear part 2B so as to be rotatable with respect to the rear part 2B of the housing 2.

As shown in FIG. 3, each locking member 42 has a locking portion 42A, an operation portion 42B, a connecting portion 42C, and a cover 46.

The locking portion 42A is a portion constituting an upper portion of the locking member 42, and has a locking claw 44 at an upper end thereof. The locking claw 44 protrudes inward in the left-right direction from the inner side surface of the upper end of the locking portion 42A. The locking claw 44 locks on the lower surface (locking surface E) of the locked portion 117 of the main body casing 110 when the dust collector 1 is connected to the hammer drill 100. More specifically, as shown in FIGS. 5A and 5B, the distal end portion (free end portion) of the locking claw 44 has a substantially triangular shape in rear view, and includes an inclined surface 44A and a lower surface 44B. And The inclined surface 44A is a surface that is inclined downward as going inward in the left-right direction. The lower surface 44B is a surface extending in the left-right direction and the front-rear direction, and is locked on the locking surface E of the locked portion 117. The locking portion 42A and the locking claw 44 are examples of the “locking portion” and the “locking claw” in the present invention, respectively.

A second support hole 47 is formed in each locking portion 42A at a substantially central portion of the lower portion in the front-rear direction. The second support hole 47 is a through hole that penetrates the locking portion 42A in the left-right direction, and is an example of the “attachment portion” in the present invention. In the present embodiment, the second support hole 47 has substantially the same diameter as the small diameter portion 27B of the first support hole 27 formed in the support portion 25. When the locking portion 42A is at the locking position shown in FIG. 5A, the second support hole 47 is arranged coaxially with the small-diameter portion 27B in the left-right direction.

The operation part 42B is a part that constitutes the lower part of the locking member 42, and is a part that the operator operates when disconnecting the dust collection device 1 from the hammer drill 100. The operation unit 42B is an example of the “operation unit” in the present invention. The connecting portion 42C connects the locking portion 42A and the operation portion 42B, and forms a substantially central portion in the vertical direction of the locking member 42. The connecting portion 42C has a swing shaft 45. The swing shaft 45 has a substantially cylindrical shape extending in the front-rear direction, and is rotatably supported on a side wall (left wall or right wall) that forms the rear part 2B of the housing 2. With this configuration, each locking member 42 is configured to be rotatable about the axis of the swing shaft 45 with respect to the rear portion 2 </ b> B of the housing 2. The cover 46 is attached to the connecting portion 42C from the left and right outer sides, and covers the swing shaft 45.

The urging member 43 is an example of the “urging member” in the present invention, and is provided between the corresponding operation unit 42B and the corresponding side wall (left wall or right wall) of the rear part 2B of the housing 2. . The urging member 43 always urges the operation unit 42B outward in the left-right direction. That is, each locking portion 42A (locking claw 44) is constantly urged inward in the left-right direction by the urging force of the corresponding urging member 43. Therefore, the locking claw 44 is always located at the locking position where it is locked to the locking surface E of the locked portion 117 of the hammer drill 100 shown in FIG.

When the worker presses the operating portion 42B inward in the left-right direction against the urging force of the urging member 43 in a state where the locking claw 44 is at the locking position, the locking member 42 The locking portion 42A rotates around the center in a direction in which the locking portion 42A moves outward in the left-right direction. By the rotation of the locking member 42, the locking claw 44 moves from the locked position shown in FIG. 5A to the non-locked position shown in FIG. 5B. In the non-locking position, the lower surface 44B of the locking claw 44 is separated from the locking surface E of the locked portion 117, and the locking on the locking surface E is released. Hereinafter, with respect to the rotation direction of the locking member 42, a rotation direction in which the locking portion 42A moves outward in the left-right direction is referred to as an “outside rotation direction”, and the locking portion 42A faces inward in the left-right direction. The rotation direction in which the object moves is referred to as the “inward rotation direction”. The “outward rotation direction” is an example of the “predetermined direction” of the present invention.

When the operator presses the operating portion 42B to release the pressing on the operating portion 42B from the state in which the locking claw 44 is located at the non-locking position, the locking member 42 swings by the urging force of the urging member 43. Since the locking claw 44 rotates in the inner rotation direction about the axis of the shaft 45, the locking claw 44 returns from the unlocked position to the locked position. Thus, the locking claw 44 is configured to be movable between the locked position and the non-locked position.

The screwing mechanism 5 regulates and permits the movement of the locking claw 44 between the locked position and the non-locked position by restricting the amount of movement of the locking portion 42A. The screwing mechanism 5 is an example of the “restrictor” in the present invention, and is an example of a “restrictor”. As shown in FIG. 6A, the screwing mechanism 5 has a pair of left and right screwing members 51. Specifically, each screwing member 51 has a male screw member 52 and a female screw member 53.

The male screw member 52 is a hexagon bolt having a hexagonal screw head 52A and a body portion 52B below its neck. The diameter of the screw head 52A is configured to be slightly smaller than the large diameter portion 27A of the first support hole 27 formed in the support portion 25. As shown in FIG. 6A, the male screw member 52 is inserted into the corresponding large-diameter portion 27A of the first support hole 27 from the inside in the left-right direction with the screw head 52A facing inward in the left-right direction. The body 52B is supported by the first support hole 27 and the second support hole 47 in a state where the body 52B is inserted into the second support hole 47 of the small diameter portion 27B and the locking portion 42A, respectively. With the body portion 52B of the male screw member 52 inserted into the first support hole 27 (the large-diameter portion 27A and the small-diameter portion 27B) and the second support hole 47, a screw portion (screw) formed at the tip end portion thereof is formed. (A peak) protrudes outward from the second support hole 47 in the left-right direction.

The female screw member 53 is a wing nut configured to be screwable with a screw portion of the body portion 52B of the male screw member 52 protruding from the second support hole 47. As shown in FIG. 4, the female screw member 53 has a knob portion 53A that is substantially rectangular in a side view. The operator can change the amount of tightening of the female screw member 53 with respect to the male screw member 52, that is, the amount of screwing between the male screw member 52 and the female screw member 53 by operating the knob 53A.

The diameter of the screw head 52A of the male screw member 52 is configured to be smaller than the diameter of the large diameter portion 27A formed in the first support hole 27. Therefore, the screw head 52A of the male screw member 52 is relatively movable with respect to the large diameter portion 27A in a state of being housed in the large diameter portion 27A. The body portion 52B of the male screw member 52 has a smaller (smaller) diameter than the small diameter portion 27B and the second support hole 47. Therefore, when the male screw member 52 is inserted into the first support hole 27 and the second support hole 47, the screw head 52A of the male screw member 52 is larger than the body portion of the male screw member 52 with respect to the large diameter portion 27A. 52B is supported with play in the small diameter portion 27B and the second support hole 47, respectively. Due to the play, if the female screw member 53 is loosely screwed into the male screw member 52, the locking member 42 rotates in the outward rotation direction about the axis of the swing shaft 45. Can move. That is, the locking portion 42A (the locking claw 44) of the locking member 42 can be moved from the locked position to the non-locked position while the male screw member 52 and the female screw member 53 remain screwed. Is configured.

Specifically, in this embodiment, when screwing of the male screw member 52 and the female screw member 53 of Kakunishigo member 51 is less than the predetermined amount R ₁ is locking claw 44 is locked position and unlocking is movable in a position, when the screwing amount is a predetermined amount R ₁ above, moves from the locking position of the locking claw 44 to the unlatched position is regulated, the locking claws 44 is maintained in the locked position.

More specifically, referring to FIG. 6B, the position of the tip of body portion 52B in a state where male screw member 52 is inserted into first support hole 27 and second support hole 47 is _denoted by _R0 . The female screw member 53 is tightened from the position _R0 to _{Rmax with} respect to the male screw member 52, and when the left-right inner surface of the female screw member 53 comes into contact with the left-right outer surface of the locking portion 42A, the locking is performed. The rotation of the member 42 in the outward rotation direction is restricted. That is, the support portion 25 and the locking portion 42A are sandwiched between the screw head 52A of the male screw member 52 and the female screw member 53. Thereby, the movement of the locking claw 44 from the locking position to the non-locking position is regulated, and the locking claw 44 is maintained at the locking position. On the other hand, as shown by the broken line in FIG. 6B, in a state where the female screw member 53 is tightened only from the positions R ₀ to R ₁ to the male screw member 52, the female screw member 53 _Since the locking portion 42A is located on the outer side in the left and right direction from the tightened state from the position of ₀ to R _max , the locking portion 42A can move outward in the left and right direction, and the rotation of the locking member 42 in the outer rotation direction is allowed. . Thereby, the locking claw 44 can be moved from the locked position to the non-locked position.

In order to change the screwing amount between the male screw member 52 and the female screw member 53, the female screw member 53 is inserted into the large diameter portion 27A, the small diameter portion 27B, and the male screw member 52 inserted into the second support hole 47. What is necessary is just to change the fastening amount. Specifically, by operating the knob 53A and tightening the female screw member 53 with respect to the male screw member 52, the screwing amount can be increased, and loosening the screwing amount can be reduced.

If Nishigoryou is less than R _1, the locking claw 44 is movable in the locking and unlocked positions. Therefore, Nishigoryou is when the operator in the state less than R ₁ pushes the operating portion 42B, the locking member 42 pivots outward pivoting direction about the axis of the pivot shaft 45. Therefore, the locking claw 44 moves from the locked position to the non-locked position. Further, if the operator releases the pressing on the operation portion 42B in a state where the locking claw 44 is moved from the locking position to the non-locking position, the locking claw 44 is locked again by the urging force of the urging member 43. Can return to position.

On the other hand, if the Nishigoryou of R ₁ above, rotation of the outer rotating direction of the locking member 42 is restricted, the locking claw 44 is maintained in the locking position. Even if the operator presses the operating portion 42B in this state, the inner side surface in the left-right direction of the female screw member 53 comes into contact with the outer side surface in the left-right direction of the locking portion 42A, and the locking member 42 rotates outward in the left-right direction. Therefore, the movement of the locking claw 44 from the locked position to the non-locked position is restricted.

Thus, when screwing of the male screw member 52 and the female screw member 53 is R ₁ or more, even attempt to remove the dust collector 1 from the hammer drill 100 by pressing the operating portion 42B is the operator, the male thread Since the locking claw 44 is maintained at the locking position by screwing the member 52 and the female screw member 53, the connection between the dust collecting device 1 and the hammer drill 100 is not released. Conversely, moving the screwing amount of the male screw member 52 and the female screw member 53 if it is less than R _1, the unlocked position from the locking claw 44 is locked position by the operator presses the operating portion 42B Therefore, the dust collection device 1 can be detached from the hammer drill 100 to disconnect the connection. That is, with the male screw member 52 and the female screw member 53 still attached to the housing 2 (first support hole 27) and the locking portion 42A (second support hole 47), the dust collection device 1 and the hammer drill 100 are connected to each other. You can switch between connected and disconnected.

Next, connection of the dust collector 1 to the hammer drill 100 will be described.

To connect the dust collecting apparatus 1 in the hammer drill 100, the screwing amount of the male screw member 52 and the female screw member 53 after less than R _1, the corresponding of the hammer drill 100 guided portion 29 of the dust collector 1 It is inserted into the guide groove 116 from below. When the dust collector 1 is moved upward along the guide groove 116 in this state, the locking claws 44 move upward while sequentially contacting the lower surface and the left and right side surfaces of the main body casing 110 of the hammer drill 100. That is, since the inclined surface 44A of each locking claw 44 is relatively moved upward while sequentially contacting the lower surface and the left and right side surfaces of the main body casing 110, each locking member 42 opposes the urging force of the urging member 43. Rotate to open in the outward rotation direction.

By moving the dust collecting device 1 further upward, the convex portion 23 of the dust collecting device 1 and the concave portion 115 of the hammer drill 100 are fitted, and the upper end portion of each guided portion 29 corresponds to the guide groove 116 of the corresponding hammer drill 100. Abuts on the upper end of the hammer drill 100, further upward movement of the dust collector 1 with respect to the hammer drill 100 is restricted.

At this time, the locking claw 44 of each locking member 42 faces the corresponding locked portion 117 of the hammer drill 100 in the left-right direction, and the locking member 42 is rotated in the inner rotation direction by the urging force of the urging member 43. Move. By the rotation of the locking member 42, the locking claw 44 is received in the locked portion 117, and the lower surface 44B of the locking claw 44 is engaged with the locked portion 117 as shown in FIG. Lock to stop surface E. That is, the locking claw 44 is located at the locking position. Thus, the connection of the dust collecting device 1 to the hammer drill 100 is completed.

When the connection of the dust collecting device 1 to the hammer drill 100 is completed, the dust collecting terminal portion 26 of the dust collecting device 1 and the terminal portion 118 of the hammer drill 100 are fitted, and the dust collecting device 1 and the hammer drill 100 are electrically connected. Connected to.

In step connection to the hammer drill 100 of the dust collecting apparatus 1 is completed, the screwing amount by tightening the female threaded member 53 relative to the male screw member 52 if R ₁ above, the locking claw 44 in a locked position The movement to the non-locking position is restricted, and the locking claw 44 is maintained at the locking position. If there is no need to maintain the locking claw 44 in the locking position, the screwing amount need not be changed even after the connection is completed.

To release the connection to the hammer drill 100 of the dust collector 1, first, the screwing amount is less than R ₁ by loosening the female screw member 53 relative to the male screw member 52. When Nishigoryou presses the lateral direction inwardly against a worker operating portion 43B in a state where a less than R ₁ the biasing force of the biasing member 43, the locking member 42 is pivoted outwardly pivoting direction The lower surface 44B of the locking claw 44 is separated from the locking surface E of the locked portion 117 (see FIG. 5B). That is, the locking of the locking claw 44 with the locked portion 117 (the locking surface E) is released, and the locking claw 44 moves from the locking position to the non-locking position. When the dust collector 1 is moved downward with respect to the hammer drill 100 along the guide groove 116 in a state where the operation portion 42B is pressed and the locking claw 44 is maintained at the non-locking position, first, the protrusion 23 and the recess are formed. 115 is released, and the guided portion 29 of the dust collector 1 is separated from the guide groove 116. Thus, the disconnection of the dust collecting device 1 from the hammer drill 100 is completed. When the lower surface 44B of the locking claw 44 of the dust collecting device 1 has moved below the locking surface E of the locked portion 117, the operator may release his / her hand from the operation unit 43B.

When the connection between the dust collecting device 1 and the hammer drill 100 is released, the dust collecting terminal portion 26 is also separated from the terminal portion 118 of the hammer drill 100, and the electrical connection between the dust collecting device 1 and the hammer drill 100 is also released. You.

According to the above-described first embodiment, the dust collecting apparatus 1 is capable of engaging even when an operation is performed on the operation unit 42B that moves the locking claw 44 from the locked position to the non-locked position. A screwing mechanism 5 capable of restricting the movement of the pawl 44 from the locking position to the non-locking position is provided as a restricting portion. That is, the locking claw 44 can be maintained at the locking position by the screwing mechanism 5 (the screwing of the male screw member 52 and the female screw member 53) even when the operation of the operation portion 42B is performed. Have been. Therefore, even if an operation is performed on the operation portion 42B, the locking between the locking claw 44 and the hammer drill 100 (the locking surface E of the locked portion 117) is not released. The connection is never broken. Therefore, the connection between the dust collecting device 1 and the hammer drill 100 can be more firmly maintained, and the operability can be improved.

In addition, when the work is performed using the hammer drill 100 in a state where the dust collection device 1 is connected, the dust collection device 1 connected to the hammer drill 100, such as a rotational moment around the connection portion between the two, due to vibration or the like. Forces may act in directions that cause relative movement. However, even in such a case, the screwing mechanism 5 is provided as a restricting portion that can maintain the connection between the dust collecting device 1 and the hammer drill 100 even when the operation portion 42B is operated as in the present embodiment. If so, the relative movement between the dust collector 1 and the hammer drill 100 can be suppressed.

The screwing mechanism 5 has a male screw member 52 and a female screw member 53 that can be screwed together. That is, the locking claw 44 can be easily maintained at the locking position only by screwing the male screw member 52 and the female screw member 53 together.

Also, screwing mechanism 5, when screwing of the male screw member 52 and the female screw member 53 is R ₁ above, to be made the operation of the operating section 42B is locking claw 44 locked position restricting the amount of movement of the locking claw 44 to be maintained, if Nishigoryou is less than R _1, the locking pawl so that the locking claw 44 can be moved between the locking and unlocked positions The movement amount of 44 is regulated. As described above, the moving amount of the locking claw 44 can be easily adjusted only by changing the screwing amount between the male screw member 52 and the female screw member 53.

Further, the locking claw 44 is maintained at the locking position in a state of being screwed without completely releasing the screwing of the male screw member 52 and the female screw member 53, or the locking claw 44 is Whether the operator can move between the locked position and the non-locked position can be appropriately selected by an operator according to the work content and work environment, and can be easily changed. That is, the operator can easily change whether to maintain the connection of the dust collecting device 1 to the hammer drill 100 or not. Therefore, workability can be improved. Such a configuration is particularly effective when it is necessary to frequently connect / disconnect the dust collector 1 to / from the hammer drill 100.

Further, when screwing of the male screw member 52 and the female screw member 53 is less than R _1, the operating portion 42B is operated, the locking member 42 is pivoted outward pivoting direction by the pivoting The locking claw 44 moves from the locking position to the non-locking position. That is, if is less than R ₁ screwing amount of the male screw member 52 and the female screw member 53, even in a state in which is screwed the male screw member 52 and the female screw member 53, by operating the operating section 42B In this case, the locking claw 44 can be moved from the locked position to the non-locked position. That is, it is not necessary to release the screwing of the male screw member 52 and the female screw member 53 in order to disconnect the dust collecting device 1 from the hammer drill 100, and the operability is not impaired.

In the first embodiment, the locking claw 44 can be moved between the locked position and the non-locked position while the male screw member 52 and the female screw member 53 are screwed together. Therefore, the screw head 52A of the male screw member 52 is supported with play in the large diameter portion 27A, and the body portion 52B of the male screw member 52 is supported in the small diameter portion 27B and the second support hole 47 with play. However, the present invention is not limited to this. For example, when the screw head 52A of the male screw member 52 has a size that cannot be moved with respect to the large-diameter portion 27A, the diameter of the body portion 52B is sufficiently smaller than the diameter of the small-diameter portion 27B and the second support hole 47. Then, the rotation of the locking member 42 can be allowed. Alternatively, when the screw head 52A and the body portion 52B of the male screw member 52 are both inserted into the large-diameter portion 27A and the small-diameter portion 27B with almost no play, the rotation of the locking member 42 is allowed. The diameter of the second support hole 47 of the locking portion 42A may be increased to the extent.

Furthermore, according to the first embodiment, a pair of locking members 42 (locking portions 42A) are provided on the left and right so as to face each other, and the locking claws 44 are locked to the locking surface E of the hammer drill 100. In the state, the hammer drill 100 is located between the pair of locking members 42. That is, when the locking claw 44 is at the locking position, the hammer drill 100 to be locked is disposed between the pair of left and right locking members 42 (locking portions 42A). Therefore, as compared with the case where the locking claw 44 is locked only at one position with respect to the hammer drill 100, the locking claw 44 is locked on both sides of the hammer drill 100, so that the dust collecting device 1 is attached to the hammer drill 100. Can be connected in a more balanced manner.

In addition, since the screwing mechanism 5 is also provided as a pair of left and right corresponding to the pair of left and right locking members 42 (locking portions 42A), occurrence of relative movement between the dust collecting device 1 and the hammer drill 100 is more reliably suppressed. can do.

Further, according to the first embodiment, the dust collecting device 1 as a connecting device is detachably connected to the hammer drill 100. Therefore, even if dust and the like are generated during the work performed using the hammer drill 100, the dust and the like generated by the connected dust collecting device 1 are sucked and collected, so that the work efficiency can be improved.

Further, according to the first embodiment, the locking claw 44 is locked by simply bringing the locking portion 42A (locking member 42) of the dust collecting device 1 close to the hammer drill 100 to be connected. It can be locked to the surface E. Therefore, the dust collecting device 1 can be easily connected to the hammer drill 100.

Next, a battery pack 6 which is an example of a connection device according to a second embodiment of the present invention will be described with reference to FIGS. 7 to 9B.

The battery pack 6 is an example of a connection device that is used by being detachably connected to a hammer drill 100 that is an example of a work tool. That is, the battery pack 6 is a device that supplies electric power for driving the motor 120 of the connected hammer drill 100.

As shown in FIG. 7, the battery pack 6 includes a housing 61, a latch mechanism 62, a regulating member 7, and a screwing mechanism 8. The housing 61 is an example of the “housing” in the present invention. The regulating member 7 and the screwing mechanism 8 are an example of the “regulating section” in the present invention, and are an example of the “regulating means”.

The housing 61 has a substantially rectangular parallelepiped shape, and includes a lower housing 61A for accommodating a battery cell (not shown) and an upper housing 61B for accommodating a board, terminals and the like (not shown).

The upper housing 61B has a pair of left and right rail portions 63 and a latch mechanism housing portion 64. The rail portion 63 is an example of a “connection portion” in the present invention, and is an example of a “pair of rail portions”. Specifically, the pair of rail portions 63 is disposed substantially at the center of the upper surface of the upper housing 61B. Each rail 63 has a main body 63A and a rib 63B. The main body 63A extends in the front-rear direction and is provided to face each other in the left-right direction. The rib 63B extends horizontally outward from the upper end of the corresponding main body 63A. A through-hole 63a is formed in the main body 63A of each rail 63 to receive a locking claw 65A of a locking member 65 described later so as to be able to advance and retreat.

The latch mechanism accommodating portion 64 is provided behind the pair of left and right rail portions 63 on the upper surface of the upper housing 61B. The latch mechanism housing 64 is connected to the rear end of each rail 63. The latch mechanism housing section 64 houses the latch mechanism 62 in its internal space. As shown in FIG. 7, through holes 64 a are formed in left and right side walls of the latch mechanism accommodating portion 64 to receive a pressed portion 67 of a locking member 65 described later so as to be able to advance and retreat. As shown in FIGS. 9A and 9B, a pair of through holes 64b into which the regulating member 7 described later is inserted, and a screwing mechanism described later are provided on the rear wall of the latch mechanism housing 64. A receiving portion 641 configured to receive the eight male screw members 81 is formed. The through-hole 64b and the receiving part 641 are examples of the “attaching part” in the present invention. The receiving portion 641 is provided at a position between the pair of through-holes 64b and substantially at the center of the rear wall of the latch mechanism housing portion 64 in the left-right direction. The receiving portion 641 has a support portion 641A that supports the female screw member 82 of the screwing mechanism 8 described later, and a support hole 641b through which the male screw member 81 is inserted.

The latch mechanism 62 includes a pair of locking members 65 and a pair of urging members 66. Each locking member 65 is provided movably in the left-right direction within the latch mechanism housing portion 64. More specifically, each locking member 65 has a locking claw 65A and an operation unit 65B. The locking member 65 and the locking claw 65A are examples of the “locking portion” and the “locking claw” in the present invention, respectively. The locking claw 65 </ b> A has a hook shape with its tip protruding outward in the left-right direction, and forms a front portion of the locking member 65. The operation portion 65B constitutes a rear portion of the locking member 65, and has a pressed portion 67 extending in the front-rear direction and the up-down direction, and a contact rib 68. The pressed portion 67 is located outside the protruding end (tip end) of the corresponding locking claw 65A in the left-right direction. The pressed portion 67 is an example of the “operation portion” in the present invention. The contact rib 68 is a rib that protrudes rearward from the rear end of the operation unit 65B. That is, the contact rib 68 is located behind the pressed portion 67.

The urging member 66 is a member that urges the corresponding locking member 65 outward in the left-right direction, and is a compression spring in the present embodiment. The urging member 66 is an example of the “urging member” in the present invention. One end of the urging member 66 is connected to the left-right inner surface of the pressed portion 67 of the corresponding locking member 65. The other end of the urging member 66 is connected to the left-right inner surface of the urging member receiving portion 69 screwed to the upper housing 61B (see FIGS. 9A and 9B). With the above configuration, each locking member 65 is constantly urged outward in the left-right direction by the corresponding urging member 66. That is, due to the urging force of the urging member 66, the distal end of the locking claw 65A of each locking member 65 always moves outward in the left-right direction through the through-hole 63a formed in the main body 63A of the corresponding rail 63. (See FIG. 8A). The position of the locking claw 65A at this time is referred to as a locking position. At this time, the pressed portion 67 of each locking member 65 protrudes outward in the left-right direction from the left and right side surfaces of the latch mechanism housing portion 64.

When the operator presses the pressed portion 67 from the outside in the left-right direction to the inside, the locking member 65 is moved inward in the left-right direction against the urging force of the urging member 66. Thereby, the locking claw 65A also moves inward in the left-right direction, and the outer end of the locking claw 65A is moved from the left-right outer surface of the main body 63A through the through-hole 63a of the main body 63A of the corresponding rail 63. Retreat inside (see FIG. 8B). The position of the locking claw 65A at this time is referred to as a non-locking position. That is, the locking claw 65 </ b> A is configured to be able to advance and retreat in the left-right direction with respect to the left-right outer surface of the corresponding rail 63 by a pressing operation on the pressed portion 67 by the operator.

As shown in FIG. 9B, the regulating member 7 is a plate-shaped member having a substantially U-shape in a top view, and is an example of the “regulating member” of the present invention. In the present embodiment, the regulating member 7 is made of metal. The regulating member 7 has a main body 71 extending in the left-right direction, and contact portions 72 extending forward from both left and right ends of the main body 71. The contact portion 72 is inserted into a pair of through holes 64b formed in the rear wall of the upper housing 61B (the rear wall of the latch mechanism accommodating portion 64), and the front surface of the main body 71 contacts the rear wall of the upper housing 61B. As a result, the regulating member 7 is attached to the upper housing 61B. The length of the main body 71 in the left-right direction is substantially the same as the distance in the left-right direction between the two contact ribs 68 when the locking claw 65A is at the locking position. The free ends (front ends) of the abutting portions 72 are abutting ribs when the locking claw 65A is in the locking position when the front surface of the main body 71 is in contact with the rear wall of the upper housing 61B. 68 is configured to be abuttable from the left-right inner side.

Specifically, as shown in FIG. 9B, in a state where the regulating member 7 is attached to the upper housing 61B, the locking claws 65A lock the outer side in the left-right direction of the contact portion 72. The contact rib 68 is in contact with the inner surface in the left-right direction of the contact rib 68 when in the position. In the contact state, the length of the contact portion of the contact portion 72 with the contact rib 68 in the front-rear direction is L. Further, in the contact state, even if the operator presses the pressed portion 67 from the outside in the left-right direction to the inside, the locking member 65 is not moved from the locking position to the non-locking position.

A through hole 71b through which a body portion 81B of a male screw member 81 of the screwing mechanism 8 described later is inserted is formed at a substantially central portion in the left-right direction of the main body portion 71. The through hole 71b is formed at a position facing the support hole 641b of the receiving portion 641 of the upper housing 61B in the front-rear direction when the front surface of the main body 71 of the regulating member 7 contacts the rear wall of the upper housing 61B. I have. The through hole 71b and the support hole 641b have substantially the same diameter.

The screwing mechanism 8 is configured so that the regulating member 7 can be fixed to and released from the rear wall of the upper housing 61B. The screwing mechanism 8 is an example of the “screwing mechanism” of the present invention, and has a male screw member 81 and a female screw member 82. The male screw member 81 is a thumb screw having a screw head 81A and a body 81B having a screw thread below the neck. The female screw member 82 is configured to be screwable with the body portion 81B of the male screw member 81, and the support portion 641A of the receiving portion 641 provided on the rear wall of the upper housing 61B (the rear wall of the latch mechanism housing portion 64). It is supported by. The male screw member 81 is inserted into the female screw member 82 through the support hole 641b with the body portion 81B inserted through the through hole 71b in a state where the regulating member 7 is mounted on the upper housing 61B. The restricting member 7 can be fixed to the upper housing 61B by operating the 81A and screwing the body portion 81B into the female screw member 82. Specifically, the male screw member 81 is tightened to the female screw member 82, and when the rear wall of the upper housing 61B comes into contact with the main body 71 of the regulating member 7, the regulating member 7 Is fixed to the upper housing 61B in a mounted state. The position of the front end of the male screw member 81 at this time is P1 (see FIG. 9B).

Conversely, when the male screw member 81 is loosened with respect to the female screw member 82 and the regulating member 7 is separated rearward from the rear wall of the upper housing 61B, the respective contact portions 72 correspond to the corresponding contact ribs 68. Can be separated from More specifically, the male screw member 81 is loosened relative to the female screw member 82 by operating the screw head 81A of the male screw member 81, and the front end of the male screw member 81 is moved backward from the position P1 by a distance L or more. The position of the front end of the male screw member 81 when the male screw member 81 is moved backward by the distance L from the state where the front end of the male screw member 81 is located at the position P1 is shown in FIG. This is the position P2. After disposing the front end of the male screw member 81 behind the position P2 and then moving the regulating member 7 away from the rear wall of the upper housing 61B, the contact portion 72 and the contact rib 68 are The contact is released. When the contact between the contact portion 72 and the contact rib 68 is released, the locking claw 65A can move between the locked position and the non-locked position. That is, without removing the regulating member 7 and the male screw member 81 from the upper housing 61B, with the male screw member 81 and the female screw member 82 being screwed together, the locking claw 65A is shifted to the locked position and the non-locked position. It can be movable.

The battery pack 6 having the above-described configuration is connected to the battery connection portion 111 of the hammer drill 100 by sliding in a horizontal direction from the rear to the front. More specifically, as shown in FIGS. 8A and 8B, the battery connection portion 111 is an example of a main body connection portion that can be engaged with the upper surface of the upper housing 61B and the pair of rail portions 63. A pair of guide rails 111A are formed. At the rear end of each guide rail 111A, a locked portion 111B capable of locking with the locking claw 65A is formed.

In order to connect the battery pack 6 to the battery connection portion 111, first, the male screw member 81 is loosened and its tip is disposed behind the position P2, and then the regulating member 7 is separated from the rear wall of the upper housing 61B. In this state, the front end of the rib 63B of each rail 63 and the upper surface of the upper housing 61B engage the corresponding guide rail 111A so as to sandwich it in the vertical direction, and move the battery pack 6 forward along the guide rail 111A. Insert while sliding. As the battery pack 6 slides forward, the locking claws 65A protruding from the main body 63A of the rail portion 63 are pressed inward in the left-right direction by the locked portions 111B of the corresponding guide rails 111A, and are urged. The member 66 moves inward in the left-right direction against the urging force of the member 66. Therefore, the locking claw 65A moves from the locked position to the non-locked position. In other words, at the unlocked position, the locking claw 65A is retracted from the movement locus of the guide rail 111A (the locked portion 111B).

When the battery pack 6 is further slid forward as it is, and the locking claws 65A pass through the corresponding locked portions 111B, the locking claws 65A are pushed outward in the left-right direction by the urging force of the urging member 66, and are engaged. Locks to the stop 111B. That is, the locking claw 65A moves from the non-locking position to the locking position. In other words, at the locking position, the locking claw 65A has advanced to the movement locus of the guide rail 111A (the locked portion 111B). When the locking claw 65A is locked to the locked portion 111B, further forward movement of the battery pack 6 is restricted. Thus, the connection of the battery pack 6 to the hammer drill 100 is completed.

Although not shown, when the connection of the battery pack 6 to the battery connection portion 111 is completed, the terminal on the battery pack 6 side accommodated in the upper housing 61B and the terminal on the hammer drill 100 side provided in the battery connection portion 111 Are electrically connected.

When the connection between the battery pack 6 and the hammer drill 100 is completed, the regulating member 7 is brought into contact with the rear wall of the upper housing 61B. As a result, the contact portion 72 of the regulating member 7 and the contact rib 68 of the locking member 65 abut, and the locking claw 65A moves from the locked position to the non-locked position (moves inward in the left-right direction). Is regulated. Next, the screw head 81A of the male screw member 81 is operated to tighten the male screw member 81 against the female screw member 82, and the tip of the male screw member 81 is moved to the position P1. As a result, the contact portion 72 and the contact rib 68 are maintained in a state of contact with each other. That is, the locking claw 65A is maintained at the locking position by the screwing of the male screw member 81 and the female screw member 82. In this situation, even if the operator presses the pressed portion 67 inward in the left-right direction, the contact between the contact portion 72 and the contact rib 68 causes the locking claw 65A to move from the locked position to the non-locked position. Therefore, the connection between the battery pack 6 and the hammer drill 100 is not released.

To release the connection between the battery pack 6 and the hammer drill 100, first, the operator operates the screw head 81A of the male screw member 81 to loosen the male screw member 81 with respect to the female screw member 82, and The distal end of the member 81 is moved backward from the position P1 to the position P2. Thereafter, the regulating member 7 is moved in the direction from the rear wall of the upper housing 61B to be separated therefrom. Accordingly, the contact portion 72 is separated from the contact rib 68, so that the locking claw 65A can move from the locked position to the non-locked position. That is, without removing the restricting member 7 and the male screw member 81 from the upper housing 61B, and keeping the screwed state of the male screw member 81 and the female screw member 82, the locking claw 65A is moved to the locked position. It can be movable to a locking position. In this state, when the operator presses the pressed portion 67 inward in the left-right direction, the locking member 65 moves inward in the left-right direction against the urging force of the urging member 66. The locking claw 65A retreats from the trajectory of the guide rail 111A through the through hole 63a and moves to the non-locking position.

When the operator slides the battery pack 6 backward while keeping the pressed portion 67 pressed, that is, with the locking claw 65A positioned at the non-locking position, the battery pack 6 is guided by the guide. It is relatively moved rearward with respect to the rail 111A. When the front end of each rail 63 and the upper surface of the upper housing 61B are separated rearward from the corresponding guide rail 111A, the battery pack 6 is detached from the battery connection 111. Thereby, the battery pack 6 is disconnected from the hammer drill 100. The electrical connection between the battery pack 6 and the hammer drill 100 is also released when the battery pack 6 is detached from the battery connection unit 111 and disconnected.

According to the second embodiment described above, in addition to the screwing mechanism 8, the regulating member 7 that can regulate the movement of the locking claw 65A from the locked position to the non-locked position is further provided. The screwing mechanism 8 fixes the restricting member 7 to the upper housing 61B, thereby restricting the movement of the locking claw 65A from the locking position to the non-locking position, and moving the locking claw 65A to the locking position. maintain. That is, the screwing mechanism 8 can restrict the movement of the locking claw 65A from the locked position to the non-locked position via the restricting member 7. Therefore, even if the screwing mechanism 8 has a structure in which it is difficult to directly restrict the movement of the locking claw 65A as in the present embodiment, the locking position of the locking claw 65A is changed to the non-locking position. Can be restricted.

A pair of locking members 65 are provided corresponding to the pair of rail portions 63 provided on the upper housing 61B, and the locking claws 65A protrude from the left and right outer surfaces of the corresponding rail portions 63 and move along the guide rail 111A. And a non-locking position that moves inward from the corresponding lateral outer surface of the rail 63 and retracts from the movement trajectory of the guide rail 111A. Further, the restricting member 7 can contact the contact rib 68 of each locking member 65, and by contacting the restricting member 7, restricts the movement of the locking claw 65A from the locked position to the non-locked position, and engages with each other. The mechanism 8 restricts the movement of the locking claw 65A from the locking position to the non-locking position by fixing the restriction member 7 to the upper housing 61B by screwing.

As described above, even in the configuration in which the pair of the locking members 65 is provided, the interposition of the regulating member 7 that can contact the both locking members 65 allows the one locking mechanism 8 to connect the two locking members 65. It can be maintained in the locked position. Further, as compared with the case where only one locking member 65 is provided, the relative movement between the battery pack 6 and the hammer drill 100 can be more reliably prevented.

In the present embodiment, the worker manually contacts and separates the regulating member 7 with respect to the upper housing 61B. However, the regulating member 7 is configured not to be manually operated by the worker. Is also good. For example, the regulating member 7 may be provided so as to be movable in the upper housing 61B, and may be configured to be biased by a biasing member toward a rear wall of the upper housing 61B. According to such a configuration, as the screwing amount (moving amount) of the male screw member 81 to the female screw member 82 is changed, the regulating member 7 also moves in the front-rear direction following the movement of the male screw member 81. It becomes possible. Therefore, whether or not the movement of the locking claw 65A from the locked position to the non-locked position is permitted can be changed more easily.

Although the battery pack 6 is detachably connected to the hammer drill 100, the connection between the hammer drill 100 and the battery pack 6 can be further strengthened by the regulating member 7 and the screwing mechanism 8. . Therefore, more stable power supply to the hammer drill 100 is realized.

The battery pack 6 according to the above-described second embodiment has a configuration in which the locking claw 65A is connected to the battery connection portion 111 by moving in the horizontal direction (left-right direction). The moving direction of the claw may be the vertical direction instead of the horizontal direction.

Next, a battery pack 260 according to a first modification of the second embodiment will be described with reference to FIGS. Battery pack 260 has locking member 270, and differs from battery pack 6 in that locking claw 270 </ b> A is configured to be vertically movable with respect to housing 261. Battery pack 260 is locked and connected to battery connection portion 211 (see FIG. 11).

Specifically, the battery pack 260 includes a housing 261 as a housing, a locking member 270 as a locking portion, and a screwing mechanism 280 as a restricting portion or restricting means (see FIG. 12).

The housing 261 has a substantially rectangular parallelepiped shape, and includes a lower housing 261A for accommodating a battery cell (not shown) and an upper housing 261B for accommodating a board, terminals and the like (not shown). On the upper surface of the upper housing 261B, a pair of left and right rail portions 63 having substantially the same configuration as in the second embodiment and a latch mechanism housing portion 64 are formed. In addition, a concave portion 261C is formed on the rear surface of the housing 261 so as to straddle the rear wall of the upper housing 261B (latch mechanism housing portion 64) and the rear wall of the lower housing 261A. The concave portion 261C is an example of the “attachment portion” in the present invention.

As shown in FIG. 11, the locking member 270 is provided so as to be vertically movable with respect to the latch mechanism accommodating portion 64. At the upper end of the locking member 270, a locking claw 270A is provided as an example of a locking claw, and below the locking member 270, an operation unit 270B is provided as an example of an operating unit operated by an operator. The operation unit 270B is configured to be slidable in the vertical direction in the recess 261C of the housing 261. The locking claw 270A is constantly biased upward by a biasing member (not shown) housed in the housing 261. Therefore, the locking claw 270A is always located at a locking position protruding upward from the upper edge of the upper housing 261B (latch mechanism housing 64). The operation unit 270B is always located above the concave portion 261C.

When the operator presses the operating portion 270B down to the lower portion of the concave portion 261C, specifically, the distance D in FIG. 10 in a state where the locking claw 270A is in the locking position, the locking member 270 is also pressed down. Accordingly, the locking claw 270A also moves downward, and moves to a position that is substantially flush with the upper end of the latch mechanism accommodating portion 64 or lower than that. The position of the locking claw 270A at this time is referred to as a non-locking position. That is, the locking claw 270A is movable between a locked position and a non-locked position in the vertical direction.

As shown in FIG. 12, the screwing mechanism 280 is an example of the “screwing mechanism” in the present invention, and has the same configuration as the screwing mechanism 8 of the second embodiment. That is, the screwing mechanism 280 has a male screw member 281 that is a thumb screw, and a female screw member (not shown) that can be screwed with the male screw member 281. The female screw member is provided in the housing 261 at a position corresponding to the concave portion 261C in the housing 261. Further, a through hole 261d penetrating in the front-rear direction is formed below the concave portion 261C and at a central position in the left-right direction. The diameter of the through hole 261d is smaller than the distance D. When the male screw member 281 is inserted into the through hole 261d, the male screw member 281 can be screwed with a female screw member arranged in the housing 261.

As shown in FIG. 11, the battery connecting portion 211 includes a pair of guide rails 211A that can be engaged with the pair of rail portions 63, a contacted portion 211B that can contact the locking claw 270A, and a locking claw 270A. And a concave portion 211C capable of receiving the The contacted part 211B is located behind the concave part 211C.

To connect the battery pack 260 to the battery connection portion 211, the front end of the rail portion 63 and the guide rail 211A are engaged with the male screw member 281 not inserted into the through hole 261d, and the rail portion 63 The battery pack 260 is slid forward in a state in which the battery pack 260 is engaged with the guide rail 211A. As the battery pack 260 slides forward, the locking claw 270A protruding upward from the latch mechanism accommodating portion 64 comes into contact with the contacted portion 211B, and is pushed down by the contacted portion 211B while moving forward. Move to. When the battery pack 260 further slides forward and the rail portion 63 and the guide rail 211A are completely engaged, the locking claw 270A passes through the contacted portion 211B and faces the concave portion 211C. When the locking claw 270A faces the concave portion 211C, the locking claw 270A moves upward again by the urging force of the urging member (not shown), is received in the concave portion 211C, and locks with the concave portion 211C. That is, the locking claw 270A is located at the locking position. Thus, battery pack 260 is connected to battery connection unit 211.

At this time, although not shown, the terminals of the battery pack 260 and the battery connection portion 211 are also fitted together, and both are electrically connected.

When it is desired that the connection of the battery pack 260 to the battery connection part 211 is not released, as shown in FIG. 12, the battery pack 260 passes through the male screw member 281 in a state where the battery pack 260 is connected to the battery connection part 211. What is necessary is just to insert in the hole 261d, and to fasten and fix to the female screw member in the housing 261. Since the downward movement of the operation section 270B is regulated by the fixed male screw member 281, the operation section 270B does not move downward in the concave portion 261C even if the operator attempts to push down the operation section 270B. Therefore, the locking claw 270A is maintained at the locking position. Therefore, even if the operation unit 270B is operated, the connection between the battery pack 260 and the battery connection unit 211 is not released.

To release the connection between the battery pack 260 and the battery connection portion 211 from this state, first, the male screw member 281 is loosened with respect to the female screw member, and the male screw member 281 is pulled out from the through hole 261d. In a state where the male screw member 281 is pulled out, when the operator pushes down the operation unit 270B, the locking claw 270A moves downward from the locking position and moves to the non-locking position. When the operator pulls the battery pack 260 backward with respect to the battery connection unit 211 in a state where the operator holds down the operation unit 270B, that is, in a state where the locking claw 270A is moved from the locked position to the non-locked position. Then, the battery pack 260 is detached from the battery connection unit 211. Thereby, the connection between the battery pack 260 and the battery connection unit 211 is released.

In the battery pack 260 according to the first modification of the second embodiment, the locking claw 270A can be maintained in the locking position by screwing the male screw member 281 to the female screw member. it can. Therefore, the connection between the battery pack 260 and the battery connection unit 211 is not released. Since the connection between the battery pack 260 and the battery connection part 211 is more firmly maintained, the relative movement between the battery pack 260 and the battery connection part 211 can be more reliably suppressed.

In addition, the same functions and effects as those of the second embodiment can be obtained.

In the first embodiment, the second embodiment, and the first modified example of the second embodiment, the engagement of the locking claw is performed by using the screwing of the male screw member and the female screw member. Although the configuration restricts the movement from the stop position to the non-locking position, the present invention is not limited to this, and the locking of the locking claw is performed without using the screwing of the male screw member and the female screw member. A configuration that restricts movement from the position to the unlocked position may be employed.

Next, a battery pack 360 according to a second modification of the second embodiment will be described with reference to FIGS. The battery pack 360 has substantially the same configuration as the battery pack 260 according to the first modification of the second embodiment, but has a stopper mechanism 380 instead of the screwing mechanism 280 as a regulating portion or regulating means. In that it differs from the battery pack 260 in that Hereinafter, only the configuration of the stopper mechanism 380 different from the battery pack 260 will be described.

The stopper mechanism 380 is provided on a rear wall of the upper housing 261B (latch mechanism housing 64). The stopper mechanism 380 has a slide member 381. The slide member 381 is configured to be movable in the left-right direction with respect to the rear wall (outer surface) of the latch mechanism housing portion 64. The vertical height of the slide member 381 is configured to be slightly smaller than the distance D.

Specifically, as shown in FIG. 14, the slide member 381 is located at the right side of the lower end portion of the concave portion 261C and retracted from the concave portion 261C in a rear view, and at the right side from the first position. To the second position which has moved into the concave portion 261C. In other words, the slide member 381 is retracted from the movement locus of the locking member 270 at the first position, and advances to the movement locus of the locking member 270 at the second position. Therefore, when the slide member 381 is at the first position, the locking member 270 (the operation unit 270B) can move in the vertical direction, and when the slide member 381 is at the second position, the locking member 270 (the operation unit 270B). ) Is restricted from moving downward. The slide member 381 is configured to be movable between a first position and a second position when operated by an operator. As described above, the vertical movement of the locking claw 270A is permitted and restricted according to the movement of the slide member 381 between the first position and the second position.

In order to connect the battery pack 360 to the battery connection portion 211, first, the slide member 381 is moved to the first position so that the vertical movement of the locking claw 270A is allowed (the state of FIG. 13). When the battery pack 360 is slid forward from the rear along the guide rail 211A with respect to the battery connection portion 211 while the slide member 381 is at the first position, the locking claw 270A is brought into contact with the abutted portion 211B. After contacting and moving to the non-locking position, it is accommodated in the concave portion 211C and locked in the concave portion 211C. That is, locking claw 270A is again located at the locking position, and battery pack 360 is connected to battery connection portion 211.

When the sliding member 381 is moved from the first position to the second position in a state where the locking claw 270A is in the locking position and the battery pack 360 and the battery connection portion 211 are connected, the locking member is moved by the sliding member 381. The downward movement of 270 is restricted. Therefore, the movement of the locking claw 270A from the locking position to the non-locking position is restricted, and the locking claw 270A is maintained at the locking position. Thus, the connection between the battery pack 360 and the battery connection unit 211 is maintained without being released.

To release the connection between the battery pack 360 and the battery connection portion 211, first, the slide member 381 is moved from the second position to the first position, and the vertical movement of the locking member 270 is allowed. Therefore, if the operator pushes down the operation section 270B while the slide member 381 is at the first position, the locking claw 270A moves from the locked position to the unlocked position. When the battery pack 360 is slid rearward with respect to the battery connection portion 211 while the operation portion 270B is pressed down and the locking claw 270A is maintained at the unlocked position, the battery pack 360 is detached from the battery connection portion 211. can do. As a result, the connection of the battery pack 360 to the battery connection unit 211 is released.

According to the above configuration, it is possible to switch between the restriction and the permissible movement of the locking claw 270A from the locked position to the non-locked position using the simple stopper mechanism 380 using the slide member 381. be able to. Therefore, operability can be further improved.

In the battery pack 360 according to the second modification of the second embodiment, the same operation and effect as those of the second embodiment can be obtained.

Next, a battery pack 460 according to a third modification of the second embodiment of the present invention will be described with reference to FIGS.

The battery pack 460 has a latch mechanism 462, and differs from the battery pack 6 in that the latch mechanism 462 is configured to be vertically movable with respect to the housing 461. Battery pack 460 is locked and connected to battery connection portion 211 (see FIG. 11). The housing 461 is an example of the “housing” in the present invention.

The housing 461 has a substantially rectangular parallelepiped shape, and includes a lower housing 461A for accommodating a battery cell (not shown) and an upper housing 461B for accommodating a board, terminals and the like (not shown).

The upper housing 461B has a pair of left and right rail portions 463 and a latch mechanism accommodating portion 464. The rail portion 463 is an example of a “connection portion” in the present invention, and is an example of a “pair of rail portions”. Specifically, the pair of rail portions 463 is disposed at a substantially central portion of the upper surface of the upper housing 461B. Each rail 463 has a main body 463A and a rib 463B. The main body 463A extends in the front-rear direction and is provided so as to face each other in the left-right direction. The rib portion 463B extends horizontally horizontally outward from the upper end of the corresponding main body portion 463A. The main body 463A of each rail 463 is formed with a through hole 463a for receiving a locking claw 465A of a locking member 465 described later so as to be able to advance and retreat.

The latch mechanism accommodating portion 464 is provided on the upper surface of the upper housing 461B behind the pair of left and right rail portions 463. The latch mechanism housing section 464 is connected to the rear end of each rail section 463. The latch mechanism housing portion 464 houses the latch mechanism 462 in its internal space. As shown in FIG. 7, through holes 464a are formed in left and right side walls of the latch mechanism accommodating portion 464 to receive a pushed portion 467 of a locking member 465 described later so as to be able to advance and retreat.

In addition, the latch mechanism accommodating portion 464 has substantially the same length in the width direction with respect to the outer diameter of the non-pressing portion 467 of the locking member 465, and has an extending portion 4642 extending downward. Since the extension portion 4642 is provided, the non-pressing portion 467 can be moved downward with respect to the housing 461 so as to enter the extension portion 4642 from the state shown in FIG.

The latch mechanism 462 includes a pair of locking members 465 and a pair of urging members 466. Each locking member 465 is provided so as to be able to move vertically and horizontally in the latch mechanism accommodating portion 464 and the extension portion 4642. Specifically, each locking member 465 has a locking claw 465A and an operation unit 465B. The locking member 465 and the locking claw 465A are examples of the “locking portion” and the “locking claw” in the present invention, respectively. The locking claw 465A has a hook shape with its tip protruding outward in the left-right direction, and forms a front portion of the locking member 465. The operation portion 465B constitutes a rear portion of the locking member 465, and has a pressed portion 467 extending in the front-rear direction and the up-down direction, and a contact rib 468. The pressed portion 467 is located on the outer side in the left-right direction from the protruding end (tip) of the corresponding locking claw 465A. The pressed part 467 is an example of the “operation part” in the present invention. The contact rib 468 is a rib that protrudes rearward from the rear end of the operation portion 465B. That is, the contact rib 468 is located behind the pressed portion 467.

The urging member 466 urges the corresponding locking member 465 outward in the left-right direction, and is a compression spring in the present embodiment. The urging member 466 is an example of the “urging member” in the present invention. One end of the biasing member 466 is connected to the left-right inner surface of the pressed portion 467 of the corresponding locking member 465. The other end of the urging member 466 is connected to the left-right inner surface of the urging member receiving portion 469 screwed to the upper housing 461B (see FIGS. 16A and 16B). With the above configuration, each locking member 465 is always urged outward in the left-right direction by the corresponding urging member 466. That is, due to the urging force of the urging member 466, the tip of the locking claw 465A of each locking member 465 always moves outward in the left-right direction via the through hole 463a formed in the main body 463A of the corresponding rail portion 463. (See FIG. 16A). The position of the locking claw 465A at this time is referred to as a locking position. At this time, the pressed portion 467 of each locking member 465 protrudes outward in the left-right direction from the left and right side surfaces of the latch mechanism housing portion 464.

The upper housing 461B has a regulating member 407 that protrudes forward from the rear end of the upper housing 461B inside the upper housing 461B. The regulating member 407 is an example of the “regulating section” of the present invention. In the state shown in FIGS. 15 and 16A, that is, in the state where the non-pressing portion 467 is located above the latch mechanism accommodating portion 464, the regulating member 407 is provided at a position overlapping the contact rib 468 in the vertical direction. . On the other hand, in the state shown in FIG. 16B, that is, in a state in which the locking member 465 is moved downward with respect to the housing 461 so that the non-pressing portion 467 enters the extension portion 4642, the contact rib in the vertical direction is formed. 468.

When the operator presses the pressed portion 467 from the outside in the left-right direction to the inside, the locking member 465 is moved inward in the left-right direction against the urging force of the urging member 466. However, even if the locking member 465 attempts to move inward in the left-right direction from the state shown in FIG. 16, the abutment rib 468 and the regulating member 407 abut, and thus the locking member 465 cannot move sufficiently. The outer end cannot retreat inside the left-right outer surface of the main body 463A via the through hole 463a of the main body 463A of the corresponding rail 463. That is, battery pack 460 is maintained at the locked position.

On the other hand, when the worker presses the non-pressing portion 467 of the locking member 465 downward, the locking member 465 is moved downward with respect to the housing 461 so that the non-pressing portion 467 enters the extension portion 4642. Go to At this time, the contact rib 468 of the locking member 465 is at a position not overlapping with the locking member 465 in the vertical direction. For this reason, when the worker presses the non-pressing portion 467 of the locking member 465 downward and then from the outside in the left-right direction to the inside, the locking member 465 resists the urging force of the urging member 466. Then it is moved inward in the left-right direction. As a result, the locking claw 465A also moves inward in the left-right direction, and the outer end of the locking claw 465A is moved from the left-right outer surface of the main body 463A through the through hole 463a of the main body 463A of the corresponding rail 463. The non-locking position retracts inward (see FIG. 16B).

According to the third modification of the second embodiment described above, the locking claw 465 </ b> A of the locking member 465 can be generated only by the operator pressing the non-pressing portion 467 of the locking member 465 inward in the left-right direction. The connection between the battery pack 406 and the hammer drill 100 is not released since the lock position is maintained. On the other hand, the operator presses the non-pressing portion 467 of the locking member 465 downward, and after the non-pressing portion 467 enters the extension portion 4672, presses the non-pressing portion 467 inward in the left-right direction. Then, the locking claw 465A of the locking member 465 can be moved to the non-locking position, and the connection between the battery pack 406 and the hammer drill 100 can be released. Thus, according to the third modification of the second embodiment, it is possible to restrict the movement of the locking claw from the locking position to the non-locking position. In addition, since the restriction can be released only by operating the operation unit, the operation of the operator can be suppressed from being complicated even in the configuration in which the locking claw is restricted.

The power tool according to the present invention is not limited to the above-described embodiments and the like, and various modifications are possible within the scope of the invention described in the appended claims.

For example, in the above-described first and second embodiments and modifications thereof, the connection device and the power tool main body are configured to be connected by locking the locking claws. It may be configured to be connected to the power tool body by any other method.

In the first embodiment described above, the projection 23 of the dust collector 1 is received in the recess 115 formed in the main body casing 110 of the hammer drill 100 and is configured to fit with the recess 115. However, a concave portion may be provided on the dust collecting device 1 side, and a convex portion may be provided on the hammer drill 100 side.

Further, the connection device detachably attached to the power tool according to the present invention is not limited to the above-described dust collection device or battery pack that sucks dust or the like generated from the work material. For example, a blower having a blowing function for blowing off dust and the like generated from a work material may be used. Alternatively, a configuration may be employed in which a dust collector having a blower function is attached to a work tool as a connection device.

Although the hammer drill 100 to which the connecting device according to the above-described embodiment is connected is capable of applying a striking force and a rotational force to the tip tool 130, the hammer drill 100 may apply only the striking force, May be given. Further, the tip tool 130 may be a driver bit for tightening a screw member, or a drill bit for drilling or fraying concrete, stone, or the like.

In the above-described embodiment and its modifications, the hammer drill 100 has been described as an example of the working tool to which the connecting device is connected. However, the connecting device according to the present invention is a working tool driven by a motor other than the hammer drill, such as an electric tool. It may be connected to a drilling tool such as a hammer, an electric drill, a vibration drill, and a driver drill.

DESCRIPTION OF SYMBOLS 1 ... Dust collector, 2, 61, 261 ... Housing, 5, 8, 280 ... Screwing mechanism, 6, 260, 360 ... Battery pack, 7 ... Restriction member, 25 ... Support part, 27 ... First support hole, 42, 65, 270: locking member, 42A: locking portion, 42B, 65B, 270B: operating portion, 43, 66: biasing member, 44, 65A, 270A: locking claw, 47: second support hole, 52, 81, 281 male screw member, 53, 82 female screw member, 100 hammer drill, 111, 211 battery connection portion, 381 slide member

Claims (15)

A housing having a connection portion detachably connected to the power tool body,
A lock that locks to the power tool body and connects to the connection portion and the power tool body, and a lock that can be moved to a non-lock position where the lock to the power tool body is released and the connection is released. A locking portion having a claw;
An urging member for urging the locking portion so as to maintain the locking claw in the locking position;
An operation unit configured to move the locking claw from the locking position to the non-locking position against a biasing force of the biasing member;
A regulating portion capable of regulating movement of the locking claw from the locked position to the non-locked position ,
The restricting portion is configured to allow the locking claw to move from the locking position to the non-locking position by an operation of an operator, and to perform the non-locking from the locking position of the locking claw. It can be switched to a regulation state that regulates movement to the position,
The connection device , wherein the restriction unit can be maintained in each of the allowable state and the restriction state without the operation of the worker . The regulating portion has a screwing mechanism having a male screw member and a female screw member that can be screwed together,
2. The screwing mechanism according to claim 1 , wherein the locking state is maintained in a state where the male screw member and the female screw member are screwed together , and the locking claw can be maintained at the locking position. 3. The connecting device as described. The screwing mechanism,
When the screwing amount between the male screw member and the female screw member is equal to or more than a predetermined amount, the state becomes the restricted state, and the locking claw is maintained at the locking position even when an operation is performed on the operation unit. Regulating the amount of movement of the locking claw,
When the screwing amount is less than the predetermined amount, the allowable state is set, and the movement amount of the locking claw is regulated so that the locking claw can move between the locking position and the non-locking position. The connection device according to claim 2, wherein: In the allowable state where the screwing amount is less than the predetermined amount, the operating portion is operated to rotate the locking portion in a predetermined direction against the urging force of the urging member. 4. The connection device according to claim 3, wherein the locking claw moves from the locking position to the non-locking position by the rotation. The locking portion is provided as a pair so as to face each other, the work tool body is located between the pair of locking portions in a state where the locking claw is locked to the work tool body,
5. The connection device according to claim 1, wherein a pair of the restricting portions is provided corresponding to the pair of locking portions. 6.   The connection device according to any one of claims 1 to 5, wherein the connection device is a dust collection device that collects dust generated by operation of the power tool body. The regulating portion further includes a regulating member capable of regulating movement of the locking claw from the locked position to the non-locked position,
The connection device according to claim 2, wherein the screwing mechanism fixes the restricting member to the housing to be in the restricting state, and maintains the locking claw at the locking position. The connection portion has a pair of rail portions that can be engaged with the body connection portion of the power tool body,
The locking portion is provided in a pair corresponding to each of the pair of rail portions, the locking claw advances to the movement locus of the main body connection portion in the locking position, and the main body connection portion is in the non-locking position. Is configured to retreat from the movement locus of the section,
The restricting member is capable of contacting each of the pair of locking portions, and by restricting the movement of the locking claw from the locking position to the non-locking position,
8. The screwing mechanism according to claim 7, wherein the restricting member is fixed to the housing by screwing, whereby the restricting state is attained, and each of the locking claws is maintained at the locking position. The connecting device as described.   The restricting portion is configured to retreat from a movement trajectory of the locking portion from the locking position to the non-locking position and allow the locking claw to move from the locking position to the non-locking position. A slide member that is supported by the housing so as to be movable to a first position and a second position that advances to the movement locus and regulates movement of the locking claw from the locked position to the unlocked position. The connection device according to claim 1, further comprising:   The connection device according to any one of claims 7 to 9, wherein the connection device is a battery that can supply power to the power tool body.   The connection device according to any one of claims 1 to 10, wherein the locking claw is locked to the power tool body by bringing the locking portion close to the power tool body. . A housing having a connection portion detachably connected to the power tool body,
A lock that locks to the power tool body and connects to the connection portion and the power tool body, and a lock that can be moved to a non-lock position where the lock to the power tool body is released and the connection is released. A locking portion having a claw;
An urging member for urging the locking portion so as to maintain the locking claw in the locking position;
An operation unit configured to move the locking claw from the locking position to the non-locking position against a biasing force of the biasing member;
A mounting portion capable of mounting a restricting portion capable of restricting movement of the locking claw from the locked position to the non-locked position ,
The restricting portion is configured to allow the locking claw to move from the locking position to the non-locking position by an operation of an operator, and to perform the non-locking from the locking position of the locking claw. It can be switched to a regulation state that regulates movement to the position,
The connection device , wherein the restriction unit can be maintained in each of the allowable state and the restriction state without the operation of the worker . A housing having a connection portion detachably connected to a hammer drill that gives a striking force and a rotational force to a tool bit,
A locking portion having a locking claw that is movable to a locking position for locking the hammer drill to connect the connecting portion and the hammer drill and a non-locking position for releasing the connection with the hammer drill and releasing the connection. When,
An urging member for urging the locking portion so as to maintain the locking claw in the locking position;
An operation unit configured to move the locking claw from the locking position to the non-locking position against a biasing force of the biasing member;
A regulating portion capable of regulating movement of the locking claw from the locked position to the non-locked position ,
The restricting portion is configured to allow the locking claw to move from the locking position to the non-locking position by an operation of an operator, and to perform the non-locking from the locking position of the locking claw. It can be switched to a regulation state that regulates movement to the position,
The connection device , wherein the restriction unit can be maintained in each of the allowable state and the restriction state without the operation of the worker . A connection device for supplying power for driving a motor of a connected power tool body,
A housing having a connection portion detachably connected to the power tool body,
A lock that locks to the power tool body and connects to the connection portion and the power tool body, and a lock that can be moved to a non-lock position where the lock to the power tool body is released and the connection is released. A locking portion having a claw;
An urging member for urging the locking portion so as to maintain the locking claw in the locking position;
An operation unit configured to move the locking claw from the locking position to the non-locking position against a biasing force of the biasing member;
A regulating portion capable of regulating movement of the locking claw from the locked position to the non-locked position ,
The restricting portion is configured to allow the locking claw to move from the locking position to the non-locking position by an operation of an operator, and to perform the non-locking from the locking position of the locking claw. It can be switched to a regulation state that regulates movement to the position,
The connection device , wherein the restriction unit can be maintained in each of the allowable state and the restriction state without the operation of the worker .   The regulation unit is configured separately from the operation unit,
  When both the operation part and the restriction part are operated from the state where the movement from the locking position to the non-locking position is restricted by the restriction part, the locking claw is moved to the locking position. The connection device according to any one of claims 1 to 14, wherein the connection is releasable by moving from the position to the unlocked position.

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