WO2014119757A1 - Power tool - Google Patents

Power tool Download PDF

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Publication number
WO2014119757A1
WO2014119757A1 PCT/JP2014/052350 JP2014052350W WO2014119757A1 WO 2014119757 A1 WO2014119757 A1 WO 2014119757A1 JP 2014052350 W JP2014052350 W JP 2014052350W WO 2014119757 A1 WO2014119757 A1 WO 2014119757A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
battery mounting
power tool
motor
handle
Prior art date
Application number
PCT/JP2014/052350
Other languages
French (fr)
Japanese (ja)
Inventor
正夫 三輪
聖展 吉兼
一 竹内
祥朗 多田
Original Assignee
株式会社マキタ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社マキタ filed Critical 株式会社マキタ
Priority to DE112014000639.4T priority Critical patent/DE112014000639T5/en
Publication of WO2014119757A1 publication Critical patent/WO2014119757A1/en
Priority to US14/810,298 priority patent/US20150328764A1/en
Priority to US16/558,439 priority patent/US11148272B2/en
Priority to US17/473,054 priority patent/US11597068B2/en
Priority to US18/103,507 priority patent/US12090617B2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • the present invention relates to a power tool that performs a predetermined processing operation on a workpiece.
  • Japanese Patent Application Laid-Open No. 2011-161602 discloses an electric tool capable of mounting two battery packs.
  • battery mounting portions for mounting two battery packs are arranged side by side in a direction orthogonal to the battery mounting direction.
  • the present invention has been made in view of the above, and an object thereof is to provide an improved technique related to a battery mounting portion in a power tool in which a plurality of batteries can be mounted.
  • the power tool which drives the tip tool removably attached with respect to the drive shaft of the said tip tool is comprised.
  • the power tool includes a motor for driving the tip tool, a tool main body that houses the motor, and a battery mounting portion on which a battery for supplying current to the motor is detachably mounted.
  • Two battery mounting portions are formed, and are configured to be able to supply current to the motor from the battery mounted on the battery mounting portion.
  • the two battery mounting portions are provided side by side on a straight line extending in a predetermined direction.
  • the battery mounting portion has a battery engaging portion, and is configured to hold the battery by engaging the battery with the battery engaging portion.
  • the other battery mounting portion of the two battery mounting portions is configured to be mounted by sliding the battery with respect to the battery engaging portion in a direction approaching the one battery mounting portion.
  • the batteries are slid in the direction of approaching each other and attached to the one battery mounting portion and the other battery mounting portion.
  • the engagement between the battery engaging portion and the battery is achieved by the engagement between the convex portion and the concave portion.
  • the power tool of the present invention further includes a battery mounting portion, and suitably includes a power tool to which three or more batteries are mounted.
  • the two batteries are slid and attached to the two battery attachment portions in directions close to each other, the two batteries are attached from different directions.
  • the force for mounting one battery and the force for mounting the other battery are offset.
  • the predetermined direction is defined as a direction parallel to the drive shaft. That is, the two battery mounting portions are provided in series in the drive shaft extending direction in which the drive shaft of the tip tool extends.
  • the battery mounting portions are arranged in the drive shaft extending direction, and the battery slides in the drive shaft extending direction and is mounted on the battery mounting portion. Therefore, the two mounted batteries are arranged side by side in the drive shaft extending direction. Therefore, the size of the power tool in the direction intersecting the drive shaft extending direction can be reduced.
  • the power tool has a handle connected to the tool body.
  • the handle is provided so as to extend in the handle extending direction intersecting the drive shaft, and at least one end side in the handle extending direction is connected to the tool body.
  • the two battery mounting portions are provided on the other end side of the handle in the handle extending direction.
  • the battery mounting portion is provided at the end portion of the handle in the handle extending direction.
  • the tool body is connected to one end of the handle, and the battery is attached to the other end of the handle. Therefore, it is possible to balance the weight of the power tool when the operator grips the handle.
  • the power tool has a handle connected to the tool body.
  • the handle is provided so as to extend in the handle extending direction intersecting the drive shaft, and at least one end side in the handle extending direction is connected to the tool body.
  • the two battery mounting portions are provided on one end side of the tool body in the handle extending direction.
  • the battery mounting portion is provided on one end side of the handle in the handle extending direction of the tool body.
  • the empty space on the opposite side to the handle of the tool body in the handle extending direction is effectively used.
  • the motor is provided so that the rotating shaft of the motor and the drive shaft of the tip tool intersect. That is, a power tool is formed in which the rotation axis of the motor and the drive axis of the tip tool intersect.
  • the motor is provided with the rotation shaft of the motor and the drive shaft of the tip tool provided in parallel. That is, a power tool in which the rotation shaft of the motor and the drive shaft of the tip tool are parallel is configured.
  • the motor is provided with the rotation shaft of the motor and the drive shaft of the tip tool provided in parallel.
  • the handle has a grip portion that is gripped by an operator, and the grip portion is provided on the drive axis.
  • an operator when processing a workpiece, an operator can apply a force to the grip portion provided on the drive axis. Thereby, the operator's force imparted to the grip portion during the machining operation is reasonably transmitted to the workpiece.
  • the motor is provided with the rotation shaft of the motor and the drive shaft of the tip tool provided in parallel.
  • the handle includes a grip portion whose one end side is connected to the tool body, and a reinforcing member that further connects the other end side of the grip portion and the tool body.
  • the grip portion is reinforced by the reinforcing member. Therefore, the operator's force applied to the grip portion during the machining operation is reasonably transmitted to the workpiece.
  • the front surface of the said one battery regarding the sliding direction in which a battery slides with respect to a battery engaging part
  • the two batteries are connected to each other so that the front surface of the other battery in the sliding direction in which the battery slides faces the battery engaging portion.
  • the battery is mounted by sliding the battery from the front to the rear of the power tool, and in the other battery mounting portion, the battery is moved from the rear to the front of the power tool.
  • the battery is mounted by sliding toward it.
  • the hammer drill 100 is a striking tool that performs a drilling operation or a cutting operation on a workpiece by causing a hammer bit 119 to linearly move in the major axis direction and rotate around the major axis direction. is there.
  • This hammer bit 119 is an implementation configuration example corresponding to the “tip tool” in the present invention.
  • the hammer drill 100 is configured mainly by a main body 101 that forms an outer shell of the hammer drill 100 when viewed generally.
  • a hammer bit 119 is detachably attached to the distal end region of the main body 101 via a cylindrical tool holder 159.
  • the hammer bit 119 is held by the tool holder 159 in a state where relative reciprocation in the major axis direction is possible and relative rotation in the circumferential direction is restricted.
  • the main body 101 is mainly composed of a motor housing 103 and a gear housing 105.
  • the motor housing 103 accommodates the electric motor 110.
  • the gear housing 105 accommodates the motion conversion mechanism 120, the striking element 140, and the power transmission mechanism 150.
  • a hand grip 109 gripped by an operator is connected to a rear end region of the main body 101 opposite to the hammer bit 119 (tip region).
  • the major axis direction of the hammer bit 119 (the major axis direction of the main body 101)
  • the hammer bit 119 side is defined as “the front side of the hammer drill 100”
  • the hand grip 109 side is defined as “the rear side of the hammer drill 100”.
  • “. 1 is defined as “the upper side of the hammer drill 100”
  • the lower side of FIG. 1 is defined as “the lower side of the hammer drill 100”.
  • the gear housing 105 is disposed in the front and the motor housing 103 is disposed in the rear in the long axis direction of the hammer bit 119.
  • a hand grip 109 is disposed behind the motor housing 103.
  • the main body 101 is an implementation configuration example corresponding to the “tool main body” in the present invention.
  • the hand grip 109 is an implementation configuration example corresponding to the “handle” in the present invention.
  • the electric motor 110 is arranged so that the rotation axis is parallel to the long axis direction of the hammer bit 119.
  • This electric motor 110 is an implementation configuration example corresponding to the “motor” in the present invention.
  • the rotation output of the electric motor 110 is converted into a linear motion by the motion conversion mechanism 120 and then transmitted to the striking element 140, and is transmitted to the hammer bit 119 via the striking element 140 in the longitudinal direction of the hammer bit 119.
  • An impact force in the left-right direction in FIG. 1 is generated.
  • the rotational output of the electric motor 110 is transmitted to the hammer bit 119 after being decelerated by the power transmission mechanism 150, and the hammer bit 119 is rotated in the circumferential direction. That is, the drive axis of the hammer bit 119 is set to coincide with the major axis direction of the hammer bit 119.
  • the major axis direction of the hammer bit 119 is defined as the drive shaft extending direction in which the drive shaft extends.
  • the electric motor 110 is energized and driven by pulling a trigger disposed on the handgrip 109.
  • the detailed configuration of the motion conversion mechanism 120, the striking element 140, and the power transmission mechanism 150 will not be described for convenience.
  • the hand grip 109 is mainly composed of a grip portion 109A and a support member 107.
  • the grip portion 109 ⁇ / b> A is disposed so as to extend in the vertical direction (also referred to as a handle extending direction) in FIG. 1 intersecting the long axis direction of the hammer bit 119.
  • the upper end portion of the grip portion 109 ⁇ / b> A is connected to the motor housing 103, and the lower end portion of the grip portion 109 ⁇ / b> A is connected to the support member 107. Further, the upper end portion of the support member 107 is connected to the lower portion of the motor housing 103.
  • the support portion 107 reinforces the grip portion 109A.
  • This support member 107 is an implementation configuration example corresponding to the “reinforcing member” in the present invention.
  • a mounting portion 160 for mounting a battery is formed at the lower end of the hand grip 109.
  • the mounting portion 160 includes two battery mounting portions 160A and 160B arranged in series in the long axis direction of the hammer bit 119.
  • Battery packs 170A and 170B for supplying current to the electric motor 110 are detachably mounted on the two battery mounting portions 160A and 160B, respectively.
  • the battery mounting portions 160A and 160B are an implementation configuration example corresponding to the “battery mounting portion” in the present invention.
  • the battery packs 170A and 170B are implementation configuration examples corresponding to the “battery” in the present invention.
  • the battery mounting portions 160A and 160B have guide rails 161 that can be engaged with the batteries 170A and 170B, and concave locking portions that can be locked with the hooks 175 of the battery packs 170A and 170B ( A terminal (not shown) to which the terminals 179 of the battery packs 170A and 170B are electrically connected is provided.
  • the guide rail 161 is composed of a pair of rail members and extends in a direction parallel to the drive shaft of the hammer bit 119. That is, the guide rail 161 of the battery mounting portion 160A and the guide rail 161 of the battery mounting portion 160B are provided so as to extend on the same straight line parallel to the drive shaft of the hammer bit 119. Thereby, as shown in FIG.
  • battery pack 170A is slid with respect to battery mounting part 160A in the direction of arrow 1A and is mounted on battery mounting part 160A.
  • the battery pack 170B is slid with respect to the battery mounting portion 160B in the direction of the arrow 1B and is mounted on the battery mounting portion 160B.
  • the directions of the arrows 1A and 1B which are the mounting directions of the battery packs 170A and 170B, are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
  • This guide rail 161 is an implementation configuration example corresponding to the “battery engaging portion” in the present invention.
  • the battery packs 170A and 170B are generally configured mainly by a substantially rectangular parallelepiped battery case 171 and a plurality of battery cells (not shown) accommodated in the battery case 171.
  • the battery packs 170A and 170B are detachably mounted on the battery mounting portions 160A and 160B by sliding along guide rails 161 formed on the lower surfaces of the battery mounting portions 160A and 160B.
  • the battery packs 170A and 170B have the same shape and can be mounted on any of the battery mounting portions 160A and 160B.
  • a pair of mounting guides 173 extending linearly along the longitudinal direction of the batteries 170A and 170B are provided.
  • the mounting guide 173 engages with the guide rails 161 of the battery mounting portions 160A and 160B.
  • a hook 175 for locking the batteries 170A and 170B with respect to the battery mounting portions 160A and 160B and a lock are released at a substantially central portion on the upper surface of the battery case 171.
  • a push button 177 is provided.
  • the hook 175 is biased by a spring (not shown) so as to protrude from the upper surface of the battery case 171.
  • the push button 177 is disposed on the rear side in a direction (also referred to as a mounting direction) in which the battery case 171 is slid (moved) when the battery case 171 is mounted, and when the push button 177 is pressed,
  • the 175 is mechanically connected to the hook 175 so that the 175 moves in the direction of retracting from the upper surface of the battery case 171.
  • the hooks 175 are engaged with the locking portions of the battery mounting portions 160A and 160B.
  • batteries 170A and 170B are fixed to battery mounting portions 160A and 160B, respectively.
  • the terminals 179 of the batteries 170A and 170B are electrically connected to the terminals of the battery mounting portions 160A and 160B, and current can be supplied to the hammer drill 100.
  • the battery packs 170A and 170B attached to the battery attachment portions 160A and 160B are arranged such that the front end surfaces in the attachment direction (insertion direction) of the battery packs 170A and 170B are opposed to each other.
  • the longitudinal direction of the battery pack 170A attached to the battery attachment portion 160A and the longitudinal direction of the battery pack 170B attached to the battery attachment portion 160B are both parallel to the long axis direction of the hammer bit 119.
  • the battery packs 170A and 170B are detachably attached to the battery attachment portions 160A and 160B. Therefore, if the hammer drill 100 is, for example, in the case of 36V specification, 18V battery packs 170A and 170B are mounted and electrically connected in series. Since the 18V battery pack is lighter than the 36V battery pack, the operator can easily attach and detach the battery packs 170A and 170B. If the hammer drill 100 is, for example, in the 18V specification, the two battery packs 170A and 170B are configured to be electrically connected in parallel.
  • the electrical connection mode of the battery packs 170A and 170B is switched between series and parallel.
  • a changeover switch that can switch the connection mode of the battery packs 170A and 170B by an operator is provided.
  • the battery pack 170A is attached to the battery attachment portion 160A by moving in the direction approaching the battery attachment portion 160B (direction 1A in FIG. 2).
  • the battery pack 170B is attached to the battery attachment part 160B by moving in a direction approaching the battery attachment part 160A (direction 1B in FIG. 2). That is, the two battery packs 170A and 170B are moved and mounted on the same straight line in different directions. Therefore, when two battery packs 170A and 170B are simultaneously mounted on battery mounting portions 160A and 160B, the force for mounting battery pack 170A and the force for mounting battery pack 160B are offset.
  • the battery packs 170A and 170B are formed as a substantially rectangular parallelepiped that is long on one side.
  • the battery mounting portions 160A and 160B are arranged side by side in the major axis direction of the hammer bit 119, and the battery packs 170A and 170B slide in the major axis direction of the hammer bit 119.
  • the battery packs 170A and 170B are held by the battery mounting portions 160A and 160B so that the longitudinal direction of the battery packs 170A and 170B coincides with the long axis direction of the hammer bit 119. Therefore, in the hammer drill 100 to which two battery packs can be attached, the length of the hammer drill 100 in the left-right direction (direction perpendicular to the major axis direction of the hammer bit 119) can be shortened.
  • the battery packs 170A and 170B are slid along the guide rails 161 of the battery mounting portions 160A and 160B by sliding the mounting guides 173 of the battery packs 170A and 170B.
  • the mounting operation for mounting on 160B can be easily performed.
  • the upper end portion of the hand grip 109 is connected to the motor housing 103, and battery mounting portions 160 ⁇ / b> A and 160 ⁇ / b> B are provided at the lower end portion of the hand grip 109. Therefore, the hammer drill 100 can be balanced when the operator grips the side handle 109.
  • the hammer drill 100 according to the second embodiment differs from the hammer drill 100 according to the first embodiment in the location of the battery mounting portions 160A and 160B.
  • the configuration other than the battery mounting portions 160A and 160B has the same configuration as the hammer drill 100 of the first embodiment, and the same reference numerals are given and description thereof is omitted.
  • battery mounting portions 160A and 160B are arranged on the upper side (upper side in FIG. 7) of the main body 101 in the direction in which the handgrip 109 extends.
  • the battery pack 170A is attached to the battery attachment portion 160A by sliding relative to the battery attachment portion 160A in the direction of the arrow 2A.
  • the battery pack 170B is attached to the battery mounting portion 160B by sliding with respect to the battery mounting portion 160B in the direction of the arrow 2B.
  • the directions of arrows 2A and 2B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
  • the battery mounting portions 160A and 160B are arranged on the upper side of the main body portion 101 where the hand grip 109 and the main body portion 101 are connected in the direction in which the hand grip 109 extends. Thereby, the empty space above the main body 101 is effectively used.
  • the hammer drill 100 according to the third embodiment is configured such that the support member 107 is not provided as compared with the hammer drill 100 according to the first embodiment.
  • the structure other than the support member 107 it has the structure similar to the hammer drill 100 of 1st Embodiment, attaches
  • the battery pack 170A is slid with respect to the battery mounting portion 160A in the direction of the arrow 3A and is mounted on the battery mounting portion 160A.
  • the battery pack 170B slides with respect to the battery mounting portion 160B in the direction of the arrow 3B and is mounted on the battery mounting portion 160B.
  • the directions of the arrows 3A and 3B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
  • the hammer drill 100 according to the fourth embodiment is different from the hammer drill 100 according to the first embodiment in the place where the hand grip 109 is connected to the main body 101.
  • the configuration other than the connection location of the handgrip 109 has the same configuration as the hammer drill 100 of the first embodiment, and the same reference numerals are given and description thereof is omitted.
  • the battery pack 170A is slid with respect to the battery mounting portion 160A in the direction of the arrow 4A and is mounted on the battery mounting portion 160A.
  • the battery pack 170B is attached to the battery mounting portion 160B by sliding with respect to the battery mounting portion 160B in the direction of the arrow 4B.
  • the directions of the arrows 4A and 4B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
  • the grip portion 109 ⁇ / b> A of the hand grip 109 is connected to the upper portion of the motor housing 103 at the rear of the motor housing 103 (the right end portion in FIG. 9). Further, the grip portion 109A is disposed so as to extend in the up-down direction (also referred to as a handle extending direction) in FIG. 9 intersecting the long axis direction of the hammer bit 119. As a result, the grip portion 109 ⁇ / b> A as a grip region gripped by the operator is disposed on the drive axis of the hammer bit 119. Therefore, when processing the workpiece, the operator can apply a force to the grip portion 109A provided on the drive shaft.
  • the grip portion 109A is an implementation configuration example corresponding to the “grip portion” in the present invention.
  • the support portion 107 of the hand grip 109 is connected to the lower end portion of the grip portion 109 ⁇ / b> A and the lower portion of the motor housing 103.
  • the hammer drill 100 according to the fifth embodiment is different from the hammer drill 100 according to the first embodiment in the shape of the motor housing 103 and the arrangement of the electric motor 110.
  • the configuration other than the shape of the motor housing 103 and the arrangement of the electric motor 110 has the same configuration as that of the hammer drill 100 of the first embodiment, and the same reference numerals are given and description thereof is omitted.
  • the electric motor 110 is disposed so that the rotating shaft of the electric motor 110 and the drive shaft of the hammer bit 119 intersect. Therefore, the motor housing 103 is formed so as to extend downward from the gear housing 105 in FIG. As described above, even in the hammer drill 100 in which the rotating shaft of the electric motor 110 and the driving shaft of the hammer bit 119 intersect, the two battery mounting portions 160A and 160B are provided. Specifically, one battery mounting portion 160 ⁇ / b> A is provided at the lower end portion of the motor housing 103, and the other battery mounting portion 160 ⁇ / b> B is provided at the lower end portion of the hand grip 109.
  • the lower end portion of the motor housing 103 and the lower end portion of the hand grip 109 are set to be flush with each other.
  • the two battery packs 170A and 170B are mounted on the battery mounting portions 160A and 160B formed on the same plane.
  • the electric motor 110 is arranged so that the rotation shaft of the electric motor 110 and the drive shaft of the hammer bit 119 are orthogonal to each other.
  • the rotation shaft of the electric motor 110 is inclined with respect to the vertical direction.
  • the electric motor 110 may be disposed so as to intersect the drive shaft of the hammer bit 119.
  • the battery pack 170A is slid with respect to the battery mounting portion 160A in the direction of the arrow 5A and is mounted on the battery mounting portion 160A.
  • the battery pack 170B is slid with respect to the battery mounting portion 160B in the direction of the arrow 5B and is mounted on the battery mounting portion 160B.
  • the directions of the arrows 5A and 5B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
  • the battery mounting portions 160A and 160B are arranged in series in the major axis direction of the hammer bit 119, but are not limited thereto.
  • the battery mounting portions are arranged in series in the crossing direction that intersects both the major axis direction of the hammer bit 119 (the direction in which the drive shaft of the tip tool extends) and the handle extending direction.
  • the guide rail of the battery mounting portion extends in the crossing direction.
  • such a configuration is useful in a configuration in which the battery pack is mounted on the battery mounting portion by sliding the battery pack with respect to the guide rail of the battery mounting portion so that the short side direction of the battery pack is parallel to the intersecting direction. It is.
  • the two battery mounting portions 160A and 160B are provided.
  • three or more battery mounting portions may be provided. In this case, it is only necessary that two battery mounting portions among the three or more battery mounting portions are provided side by side on the same straight line.
  • the hammer drill 119 in which the hammer bit 119 performs a striking operation and a rotating operation has been described as an example of a power tool, but is not limited thereto.
  • the present invention may be applied to a hammer in which the hammer bit 119 performs only a striking operation as a striking tool.
  • the present invention may be applied to a drill in which the hammer bit 119 performs only a rotating operation.
  • the power tool according to the present invention can be configured in the following manner.
  • a power tool for driving a removably attached tip tool with respect to a drive shaft of the tip tool A motor for driving the tip tool;
  • a tool body for housing the motor;
  • the two battery mounting portions are provided side by side on a straight line extending in a predetermined direction,
  • the battery mounting portion has a battery engaging portion, and is configured to hold the battery by engaging the battery with the battery engaging portion.
  • the battery is mounted on one of the two battery mounting portions by sliding the battery relative to the battery engaging portion in a direction approaching the other battery mounting portion.
  • the battery is mounted on the other battery mounting portion of the two battery mounting portions by sliding the battery relative to the battery engaging portion in a direction approaching the one battery mounting portion.
  • a front surface in the insertion direction of the battery mounted on one of the battery mounting portions and a front surface in the insertion direction of the battery mounted on the other battery mounting portion are opposed to each other. It is comprised so that it may be arrange
  • the power tool characterized by the above-mentioned.
  • each component of this embodiment shows an example of the form for implementing this invention, and this invention is not limited to the structure of this embodiment.
  • the main body 101 is an example of a configuration corresponding to the “tool main body” of the present invention.
  • the hammer bit 119 is an example of a configuration corresponding to the “tool bit” of the present invention.
  • the electric motor 110 is an example of a configuration corresponding to the “motor” of the present invention.
  • the battery mounting portions 160A and 160B are an example of a configuration corresponding to the “battery mounting portion” of the present invention.
  • the support member 107 is an example of a configuration corresponding to the “reinforcing member” of the present invention.
  • the hand grip 109 is an example of a configuration corresponding to the “handle” of the present invention.
  • the guide rail 161 is an example of a configuration corresponding to the “battery engaging portion” of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)

Abstract

[Problem] To provide an improved configuration for a battery mounting part in a power tool in which two batteries can be mounted. [Solution] A hammer drill (100) that is a power tool has two battery mounting parts (160A, 160B). The two batteries (160A, 160B) are provided side by side in a straight line extending in a predetermined direction. A battery to be mounted in one battery mounting part (160A) is mounted in the battery mounting part (160A) by sliding on the straight line along a guide rail (161) of the battery mounting part (160A) in a direction in which the battery approaches the battery mounting part (160B). A battery to be mounted in the other battery mounting part (160B) is mounted in the battery mounting part (160B) by sliding on the straight line along a guide rail (161) of the battery mounting part (160B) in a direction in which the battery approaches the battery mounting part (160A).

Description

動力工具Power tools
　本発明は、被加工材に所定の加工作業を行う動力工具に関する。 The present invention relates to a power tool that performs a predetermined processing operation on a workpiece.
　特開２０１１－１６１６０２号公報には、２つのバッテリパックを装着可能な電動工具が開示されている。当該電動工具においては、２つのバッテリパックを装着するためのバッテリ装着部が、バッテリの装着方向に対して直交する方向に並んで配置されている。 Japanese Patent Application Laid-Open No. 2011-161602 discloses an electric tool capable of mounting two battery packs. In the electric tool, battery mounting portions for mounting two battery packs are arranged side by side in a direction orthogonal to the battery mounting direction.
　しかしながら、上記の電動工具は、２つのバッテリ装着部がバッテリを装着する際にバッテリが移動される方向である装着方向に対して直交する方向に並べて配置しているため、当該直交する方向に関して、電動工具の大きさが大きくなる。すなわち、バッテリ装着部に関してさらなる改良の余地がある。 However, since the above-mentioned electric tool is arranged side by side in the direction orthogonal to the mounting direction, which is the direction in which the battery is moved when the two battery mounting units mount the battery, The size of the power tool increases. That is, there is room for further improvement regarding the battery mounting portion.
　そこで、本発明は、上記に鑑みてなされたものであり、複数のバッテリを装着可能な動力工具において、バッテリ装着部に関する改良技術を提供することを目的とする。 Therefore, the present invention has been made in view of the above, and an object thereof is to provide an improved technique related to a battery mounting portion in a power tool in which a plurality of batteries can be mounted.
　上記課題は、本発明によって解決される。本発明に係る動力工具の好ましい形態によれば、取り外し可能に取り付けられた先端工具を当該先端工具の駆動軸に対して駆動させる動力工具が構成される。当該動力工具は、先端工具を駆動するためのモータと、モータを収容する工具本体と、モータに電流を供給するためのバッテリが取り外し可能に装着されるバッテリ装着部と、を有する。バッテリ装着部は２つ形成されており、バッテリ装着部に装着されたバッテリからモータに対して電流を供給可能に構成されている。２つのバッテリ装着部は、所定方向に延在する直線上に並んで設けられている。また、バッテリ装着部はバッテリ係合部を有し、バッテリがバッテリ係合部に係合することによって当該バッテリを保持するように構成されている。そして、２つのバッテリ装着部のうちの一方のバッテリ装着部には、他方のバッテリ装着部に近づく方向に、バッテリがバッテリ係合部に対して摺動することで装着されるように構成されている。一方、２つのバッテリ装着部のうちの他方のバッテリ装着部には、一方のバッテリ装着部に近づく方向に、バッテリがバッテリ係合部に対して摺動することで装着されるように構成されている。換言すると、一方のバッテリ装着部と他方のバッテリ装着部には、互いに近接する方向にバッテリが摺動されてそれぞれのバッテリが装着される。典型的には、バッテリ係合部とバッテリの係合は、凸部と凹部の係合によって達成される。この場合、バッテリ係合部と、当該バッテリ係合部に係合するバッテリのうち少なくともいずれか一方（凸部または凹部）が所定方向に延在する。なお、本発明の動力工具は、本発明に係る２つのバッテリ装着部以外に、さらにバッテリ装着部が設けられており、３つ以上のバッテリが装着される動力工具も好適に包含する。 The above problem is solved by the present invention. According to the preferable form of the power tool which concerns on this invention, the power tool which drives the tip tool removably attached with respect to the drive shaft of the said tip tool is comprised. The power tool includes a motor for driving the tip tool, a tool main body that houses the motor, and a battery mounting portion on which a battery for supplying current to the motor is detachably mounted. Two battery mounting portions are formed, and are configured to be able to supply current to the motor from the battery mounted on the battery mounting portion. The two battery mounting portions are provided side by side on a straight line extending in a predetermined direction. The battery mounting portion has a battery engaging portion, and is configured to hold the battery by engaging the battery with the battery engaging portion. And it is comprised so that it may mount | wear to one battery mounting part of two battery mounting parts by the battery sliding with respect to a battery engaging part in the direction approaching the other battery mounting part. Yes. On the other hand, the other battery mounting portion of the two battery mounting portions is configured to be mounted by sliding the battery with respect to the battery engaging portion in a direction approaching the one battery mounting portion. Yes. In other words, the batteries are slid in the direction of approaching each other and attached to the one battery mounting portion and the other battery mounting portion. Typically, the engagement between the battery engaging portion and the battery is achieved by the engagement between the convex portion and the concave portion. In this case, at least one of the battery engaging portion and the battery engaging with the battery engaging portion (a convex portion or a concave portion) extends in a predetermined direction. In addition to the two battery mounting portions according to the present invention, the power tool of the present invention further includes a battery mounting portion, and suitably includes a power tool to which three or more batteries are mounted.
　本発明によれば、２つのバッテリ装着部には、互いに近接する方向にバッテリが摺動されて装着されるため、２つのバッテリが互いに異なる方向から装着される。特に、２つのバッテリを同時にバッテリ装着部に装着する場合には、一方のバッテリを装着するための力と他方のバッテリを装着するための力が相殺される。 According to the present invention, since the batteries are slid and attached to the two battery attachment portions in directions close to each other, the two batteries are attached from different directions. In particular, when two batteries are mounted on the battery mounting portion at the same time, the force for mounting one battery and the force for mounting the other battery are offset.
　本発明に係る動力工具の更なる形態によれば、所定方向は、駆動軸に平行な方向として規定されている。すなわち、２つのバッテリ装着部は、先端工具の駆動軸が延在する駆動軸延在方向に直列状に並んで設けられている。 According to the further form of the power tool according to the present invention, the predetermined direction is defined as a direction parallel to the drive shaft. That is, the two battery mounting portions are provided in series in the drive shaft extending direction in which the drive shaft of the tip tool extends.
　本形態によれば、バッテリ装着部が駆動軸延在方向に並んでおり、バッテリが当該駆動軸延在方向に摺動してバッテリ装着部に装着される。そのため、装着された２つのバッテリが駆動軸延在方向に並んで配置される。したがって、駆動軸延在方向に交差する方向における動力工具の大きさを小さくすることができる。 According to this embodiment, the battery mounting portions are arranged in the drive shaft extending direction, and the battery slides in the drive shaft extending direction and is mounted on the battery mounting portion. Therefore, the two mounted batteries are arranged side by side in the drive shaft extending direction. Therefore, the size of the power tool in the direction intersecting the drive shaft extending direction can be reduced.
　本発明に係る動力工具の更なる形態によれば、工具本体に連接されたハンドルを有している。そして、ハンドルは、駆動軸に交差するハンドル延在方向に延在するように設けられており、ハンドル延在方向に関する少なくとも一方の端部側が工具本体に連接されている。そして、２つのバッテリ装着部は、ハンドル延在方向に関するハンドルの他方の端部側に設けられている。 According to a further aspect of the power tool according to the present invention, the power tool has a handle connected to the tool body. The handle is provided so as to extend in the handle extending direction intersecting the drive shaft, and at least one end side in the handle extending direction is connected to the tool body. The two battery mounting portions are provided on the other end side of the handle in the handle extending direction.
　本形態によれば、バッテリ装着部がハンドル延在方向に関するハンドルの端部に設けられる。これにより、ハンドルの一方の端部には工具本体が連接し、ハンドルの他方の端部にはバッテリが装着される。そのため、作業者がハンドルを把持したときの、動力工具の重量バランスをとることができる。 According to this embodiment, the battery mounting portion is provided at the end portion of the handle in the handle extending direction. As a result, the tool body is connected to one end of the handle, and the battery is attached to the other end of the handle. Therefore, it is possible to balance the weight of the power tool when the operator grips the handle.
　本発明に係る動力工具の更なる形態によれば、工具本体に連接されるハンドルを有している。そして、ハンドルは、駆動軸に交差するハンドル延在方向に延在するように設けられており、ハンドル延在方向に関する少なくとも一方の端部側が工具本体に連接されている。そして、２つのバッテリ装着部は、工具本体の、ハンドル延在方向に関する一方の端部側に設けられている。 According to a further aspect of the power tool according to the present invention, the power tool has a handle connected to the tool body. The handle is provided so as to extend in the handle extending direction intersecting the drive shaft, and at least one end side in the handle extending direction is connected to the tool body. The two battery mounting portions are provided on one end side of the tool body in the handle extending direction.
　本形態によれば、バッテリ装着部が工具本体のハンドル延在方向に関するハンドルの一方の端部側に設けられる。これにより、ハンドル延在方向に関する、工具本体のハンドルとは反対側の空きスペースが有効に利用される。 According to this embodiment, the battery mounting portion is provided on one end side of the handle in the handle extending direction of the tool body. Thereby, the empty space on the opposite side to the handle of the tool body in the handle extending direction is effectively used.
　本発明に係る動力工具の更なる形態によれば、モータは、当該モータの回転軸と先端工具の駆動軸が交差するように設けられている。すなわち、モータの回転軸と先端工具の駆動軸が交差する動力工具が構成される。 According to the further form of the power tool according to the present invention, the motor is provided so that the rotating shaft of the motor and the drive shaft of the tip tool intersect. That is, a power tool is formed in which the rotation axis of the motor and the drive axis of the tip tool intersect.
　本発明に係る動力工具の更なる形態によれば、モータは、当該モータの回転軸と先端工具の駆動軸が平行に設けられている。すなわち、モータの回転軸と先端工具の駆動軸が平行な動力工具が構成される。 According to the further form of the power tool according to the present invention, the motor is provided with the rotation shaft of the motor and the drive shaft of the tip tool provided in parallel. That is, a power tool in which the rotation shaft of the motor and the drive shaft of the tip tool are parallel is configured.
　本発明に係る動力工具の更なる形態によれば、モータは、当該モータの回転軸と先端工具の駆動軸が平行に設けられている。さらに、ハンドルは、作業者に把持されるグリップ部を有し、グリップ部は駆動軸線上に設けられている。 According to the further form of the power tool according to the present invention, the motor is provided with the rotation shaft of the motor and the drive shaft of the tip tool provided in parallel. Furthermore, the handle has a grip portion that is gripped by an operator, and the grip portion is provided on the drive axis.
　本形態によれば、被加工材に対して加工を行う際に、作業者が駆動軸線上に設けられたグリップ部に力を付与することができる。これにより、加工作業の際にグリップ部に付与された作業者の力が被加工材まで合理的に伝達される。 According to this embodiment, when processing a workpiece, an operator can apply a force to the grip portion provided on the drive axis. Thereby, the operator's force imparted to the grip portion during the machining operation is reasonably transmitted to the workpiece.
　本発明に係る動力工具の更なる形態によれば、モータは、当該モータの回転軸と先端工具の駆動軸が平行に設けられている。さらに、ハンドルは、一端側が工具本体に連接するグリップ部と、当該グリップ部の他端側と工具本体をさらに連結する補強部材を有する。 According to the further form of the power tool according to the present invention, the motor is provided with the rotation shaft of the motor and the drive shaft of the tip tool provided in parallel. Further, the handle includes a grip portion whose one end side is connected to the tool body, and a reinforcing member that further connects the other end side of the grip portion and the tool body.
　本形態によれば、補強部材によってグリップ部が補強される。したがって、加工作業の際にグリップ部に付与された作業者の力が被加工材まで合理的に伝達される。 According to this embodiment, the grip portion is reinforced by the reinforcing member. Therefore, the operator's force applied to the grip portion during the machining operation is reasonably transmitted to the workpiece.
　本発明に係る動力工具の更なる形態によれば、一方のバッテリ装着部にバッテリが装着される際にバッテリ係合部に対してバッテリが摺動される摺動方向に関する当該一方のバッテリの前面と、他方のバッテリ装着部にバッテリが装着される際に、バッテリ係合部に対してバッテリが摺動される摺動方向に関する当該他方のバッテリの前面が向かい合うように、２つのバッテリがそれぞれのバッテリ装着部に装着される。すなわち、バッテリがバッテリ装着部に装着される際に、一方のバッテリ装着部に対してバッテリが摺動される方向と、他方のバッテリ装着部に対してバッテリが装着される方向は、互いに近接する方向である。例えば、一方のバッテリ装着部においては、バッテリが動力工具の前方から後方に向かって摺動されることで、バッテリが装着され、他方のバッテリ装着部においては、バッテリが動力工具の後方から前方に向かって摺動されることで、バッテリが装着される。 According to the further form of the power tool which concerns on this invention, when a battery is mounted | worn with one battery mounting part, the front surface of the said one battery regarding the sliding direction in which a battery slides with respect to a battery engaging part When the battery is mounted on the other battery mounting portion, the two batteries are connected to each other so that the front surface of the other battery in the sliding direction in which the battery slides faces the battery engaging portion. Mounted on the battery mounting section. That is, when the battery is mounted on the battery mounting portion, the direction in which the battery slides with respect to one battery mounting portion and the direction in which the battery is mounted with respect to the other battery mounting portion are close to each other. Direction. For example, in one battery mounting portion, the battery is mounted by sliding the battery from the front to the rear of the power tool, and in the other battery mounting portion, the battery is moved from the rear to the front of the power tool. The battery is mounted by sliding toward it.
　本発明によれば、２つのバッテリを装着可能な動力工具において、バッテリ装着部に関する改良技術を提供することができる。
　本発明の他の特質、作用および効果については、本明細書、特許請求の範囲、添付図面を参照することで直ちに理解可能である。 ADVANTAGE OF THE INVENTION According to this invention, in the power tool which can mount | wear with two batteries, the improvement technique regarding a battery mounting part can be provided.
Other features, actions, and advantages of the present invention can be readily understood with reference to the specification, claims, and accompanying drawings.
第１実施形態に係るハンマドリルの全体構成を示す模式図である。It is a mimetic diagram showing the whole hammer drill composition concerning a 1st embodiment. 図１のハンマドリルにバッテリパックが装着された状態を示す模式図である。It is a schematic diagram which shows the state with which the battery pack was mounted | worn with the hammer drill of FIG. バッテリパックを示す斜視図である。It is a perspective view which shows a battery pack. バッテリパックを示す平面図である。It is a top view which shows a battery pack. 図３のＣ矢視図である。It is C arrow line view of FIG. 図３のＤ矢視図である。It is D arrow line view of FIG. 第２実施形態に係るハンマドリルの全体構成及び当該ハンマドリルにバッテリパックが装着された状態を示す模式図である。It is a schematic diagram which shows the whole structure of the hammer drill which concerns on 2nd Embodiment, and the state by which the battery pack was mounted | worn with the said hammer drill. 第３実施形態に係るハンマドリルの全体構成及び当該ハンマドリルにバッテリパックが装着された状態を示す模式図である。It is a schematic diagram which shows the state by which the battery pack was mounted | worn with the whole structure of the hammer drill which concerns on 3rd Embodiment, and the said hammer drill. 第４実施形態に係るハンマドリルの全体構成及び当該ハンマドリルにバッテリパックが装着された状態を示す模式図である。It is a schematic diagram which shows the whole structure of the hammer drill which concerns on 4th Embodiment, and the state by which the battery pack was mounted | worn with the said hammer drill. 第５実施形態に係るハンマドリルの全体構成及び当該ハンマドリルにバッテリパックが装着された状態を示す模式図である。It is a schematic diagram which shows the state by which the battery pack was mounted | worn with the whole structure of the hammer drill which concerns on 5th Embodiment, and the said hammer drill.
　以上および以下の記載に係る構成ないし方法は、本発明にかかる「動力工具」の製造および使用、当該「動力工具」の構成要素の使用を実現せしめるべく、他の構成ないし方法と別に、あるいはこれらと組み合わせて用いることができる。本発明の代表的実施形態は、これらの組み合わせも包含し、添付図面を参照しつつ詳細に説明される。以下の詳細な説明は、本発明の好ましい適用例を実施するための詳細情報を当業者に教示するに留まり、本発明の技術的範囲は、当該詳細な説明によって制限されず、特許請求の範囲の記載に基づいて定められる。このため、以下の詳細な説明における構成や方法ステップの組み合わせは、広義の意味において、本発明を実施するのに全て必須であるというものではなく、添付図面の参照番号とともに記載された詳細な説明において、本発明の代表的形態を開示するに留まるものである。
（第１実施形態）
　以下、本発明の第１実施形態につき、図１～図６を参照して説明する。第１実施形態は、動力工具の一例としてバッテリ式ハンマドリルを用いて説明する。図１に示すように、ハンマドリル１００は、ハンマビット１１９を長軸方向に直線動作及び長軸方向回りに回転動作させて、被加工材に対して穴明けやハツリ等の加工を行う打撃工具である。このハンマビット１１９が、本発明における「先端工具」に対応する実施構成例である。 The configurations and methods according to the above and the following description are separately or separately from other configurations and methods in order to realize the manufacture and use of the “power tool” according to the present invention and the use of the components of the “power tool”. Can be used in combination. Exemplary embodiments of the present invention include these combinations and will be described in detail with reference to the accompanying drawings. The following detailed description is only to teach those skilled in the art with detailed information to implement preferred embodiments of the invention, and the scope of the invention is not limited by the detailed description, but is limited by the scope of the claims. It is determined based on the description. For this reason, combinations of configurations and method steps in the following detailed description are not all essential to implement the present invention in a broad sense, but are described in detail with reference numerals in the accompanying drawings. However, only representative embodiments of the present invention are disclosed.
(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The first embodiment will be described using a battery type hammer drill as an example of a power tool. As shown in FIG. 1, the hammer drill 100 is a striking tool that performs a drilling operation or a cutting operation on a workpiece by causing a hammer bit 119 to linearly move in the major axis direction and rotate around the major axis direction. is there. This hammer bit 119 is an implementation configuration example corresponding to the “tip tool” in the present invention.
　ハンマドリル１００は、概括的に見て、ハンマドリル１００の外郭を形成する本体部１０１を主体として構成される。本体部１０１の先端領域には、ハンマビット１１９が筒状のツールホルダ１５９を介して取り外し可能に取付けられる。ハンマビット１１９は、その長軸方向への相対的な往復動が可能に、かつその周方向への相対的な回動が規制された状態でツールホルダ１５９に保持される。 The hammer drill 100 is configured mainly by a main body 101 that forms an outer shell of the hammer drill 100 when viewed generally. A hammer bit 119 is detachably attached to the distal end region of the main body 101 via a cylindrical tool holder 159. The hammer bit 119 is held by the tool holder 159 in a state where relative reciprocation in the major axis direction is possible and relative rotation in the circumferential direction is restricted.
　本体部１０１は、モータハウジング１０３およびギアハウジング１０５を主体として構成されている。モータハウジング１０３は、電動モータ１１０を収容している。ギアハウジング１０５は、運動変換機構１２０、打撃要素１４０及び動力伝達機構１５０を収容している。ハンマビット１１９の長軸方向に関して、本体部１０１のハンマビット１１９（先端領域）と反対側の後端領域には、作業者が握るハンドグリップ１０９が連接されている。なお、説明の便宜上、ハンマビット１１９の長軸方向（本体部１０１の長軸方向）に関して、ハンマビット１１９側を「ハンマドリル１００の前側」と規定し、ハンドグリップ１０９側を「ハンマドリル１００の後側」と規定する。また、図１の上方を「ハンマドリル１００の上側」と規定し、図１の下方を「ハンマドリル１００の下側」と規定する。 The main body 101 is mainly composed of a motor housing 103 and a gear housing 105. The motor housing 103 accommodates the electric motor 110. The gear housing 105 accommodates the motion conversion mechanism 120, the striking element 140, and the power transmission mechanism 150. With respect to the longitudinal direction of the hammer bit 119, a hand grip 109 gripped by an operator is connected to a rear end region of the main body 101 opposite to the hammer bit 119 (tip region). For convenience of explanation, regarding the major axis direction of the hammer bit 119 (the major axis direction of the main body 101), the hammer bit 119 side is defined as “the front side of the hammer drill 100”, and the hand grip 109 side is defined as “the rear side of the hammer drill 100”. ". 1 is defined as “the upper side of the hammer drill 100”, and the lower side of FIG. 1 is defined as “the lower side of the hammer drill 100”.
　すなわち、本体部１０１は、ハンマビット１１９の長軸方向に関して、前方にギアハウジング１０５が配置され、後方にモータハウジング１０３が配置されている。さらに、モータハウジング１０３の後方にハンドグリップ１０９が配置されている。この本体部１０１が、本発明における「工具本体」に対応する実施構成例である。また、ハンドグリップ１０９が、本発明における「ハンドル」に対応する実施構成例である。 That is, in the main body 101, the gear housing 105 is disposed in the front and the motor housing 103 is disposed in the rear in the long axis direction of the hammer bit 119. Further, a hand grip 109 is disposed behind the motor housing 103. The main body 101 is an implementation configuration example corresponding to the “tool main body” in the present invention. Further, the hand grip 109 is an implementation configuration example corresponding to the “handle” in the present invention.
　電動モータ１１０は、回転軸がハンマビット１１９の長軸方向と平行になるように配置されている。この電動モータ１１０が、本発明における「モータ」に対応する実施構成例である。 The electric motor 110 is arranged so that the rotation axis is parallel to the long axis direction of the hammer bit 119. This electric motor 110 is an implementation configuration example corresponding to the “motor” in the present invention.
　電動モータ１１０の回転出力は、運動変換機構１２０によって直線運動に変換された上で打撃要素１４０に伝達され、当該打撃要素１４０を介してハンマビット１１９に対して、当該ハンマビット１１９の長軸方向（図１の左右方向）への衝撃力を発生させる。また、電動モータ１１０の回転出力は、動力伝達機構１５０によって減速された上でハンマビット１１９に伝達され、当該ハンマビット１１９が周方向に回転動作される。すなわち、ハンマビット１１９の長軸方向に一致する当該ハンマビット１１９の駆動軸が設定されている。換言すると、ハンマビット１１９の長軸方向は、駆動軸が延在する駆動軸延在方向として規定される。なお、電動モータ１１０は、ハンドグリップ１０９に配置されたトリガの引き操作によって通電駆動される。運動変換機構１２０、打撃要素１４０および動力伝達機構１５０の詳細な構成については、便宜上説明を省略する。 The rotation output of the electric motor 110 is converted into a linear motion by the motion conversion mechanism 120 and then transmitted to the striking element 140, and is transmitted to the hammer bit 119 via the striking element 140 in the longitudinal direction of the hammer bit 119. An impact force in the left-right direction in FIG. 1 is generated. The rotational output of the electric motor 110 is transmitted to the hammer bit 119 after being decelerated by the power transmission mechanism 150, and the hammer bit 119 is rotated in the circumferential direction. That is, the drive axis of the hammer bit 119 is set to coincide with the major axis direction of the hammer bit 119. In other words, the major axis direction of the hammer bit 119 is defined as the drive shaft extending direction in which the drive shaft extends. The electric motor 110 is energized and driven by pulling a trigger disposed on the handgrip 109. The detailed configuration of the motion conversion mechanism 120, the striking element 140, and the power transmission mechanism 150 will not be described for convenience.
　ハンドグリップ１０９は、グリップ部１０９Ａとサポート部材１０７を主体として構成されている。グリップ部１０９Ａは、ハンマビット１１９の長軸方向に交差する図１の上下方向（ハンドル延在方向とも称す）に延在するように配置されている。グリップ部１０９Ａの上端部はモータハウジング１０３に連接され、グリップ部１０９Ａの下端部はサポート部材１０７に連接されている。また、サポート部材１０７の上端部は、モータハウジング１０３の下部に連接されている。これにより、ハンドグリップ１０９に関して、サポート部１０７がグリップ部１０９Ａを補強している。このサポート部材１０７が、本発明における「補強部材」に対応する実施構成例である。 The hand grip 109 is mainly composed of a grip portion 109A and a support member 107. The grip portion 109 </ b> A is disposed so as to extend in the vertical direction (also referred to as a handle extending direction) in FIG. 1 intersecting the long axis direction of the hammer bit 119. The upper end portion of the grip portion 109 </ b> A is connected to the motor housing 103, and the lower end portion of the grip portion 109 </ b> A is connected to the support member 107. Further, the upper end portion of the support member 107 is connected to the lower portion of the motor housing 103. Thereby, with respect to the hand grip 109, the support portion 107 reinforces the grip portion 109A. This support member 107 is an implementation configuration example corresponding to the “reinforcing member” in the present invention.
　ハンドグリップ１０９の下端部には、バッテリを装着するための装着部１６０が形成されている。装着部１６０は、ハンマビット１１９の長軸方向に直列状に並んで配置された２つのバッテリ装着部１６０Ａ，１６０Ｂにより構成されている。２個のバッテリ装着部１６０Ａ，１６０Ｂのそれぞれに、電動モータ１１０に電流を供給するためのバッテリパック１７０Ａ，１７０Ｂが取り外し可能に装着される。このバッテリ装着部１６０Ａ，１６０Ｂが、本発明における「バッテリ装着部」に対応する実施構成例である。また、バッテリパック１７０Ａ，１７０Ｂが、本発明における「バッテリ」に対応する実施構成例である。 A mounting portion 160 for mounting a battery is formed at the lower end of the hand grip 109. The mounting portion 160 includes two battery mounting portions 160A and 160B arranged in series in the long axis direction of the hammer bit 119. Battery packs 170A and 170B for supplying current to the electric motor 110 are detachably mounted on the two battery mounting portions 160A and 160B, respectively. The battery mounting portions 160A and 160B are an implementation configuration example corresponding to the “battery mounting portion” in the present invention. The battery packs 170A and 170B are implementation configuration examples corresponding to the “battery” in the present invention.
　図１に示すように、バッテリ装着部１６０Ａ，１６０Ｂには、それぞれバッテリ１７０Ａ，１７０Ｂと係合可能なガイドレール１６１と、バッテリパック１７０Ａ，１７０Ｂのフック１７５が係止可能な凹状の係止部（図示省略）と、バッテリパック１７０Ａ，１７０Ｂのターミナル１７９が電気的に接続されるターミナル（図示省略）が設けられている。このガイドレール１６１は、一対のレール部材で構成されており、ハンマビット１１９の駆動軸に平行な方向に延在している。すなわち、バッテリ装着部１６０Ａのガイドレール１６１とバッテリ装着部１６０Ｂのガイドレール１６１は、ハンマビット１１９の駆動軸に平行な同一直線上に延在するように設けられている。これにより、図２に示すように、バッテリパック１７０Ａは、矢印１Ａの方向にバッテリ装着部１６０Ａに対して摺動して当該バッテリ装着部１６０Ａに装着される。一方、バッテリパック１７０Ｂは、矢印１Ｂの方向にバッテリ装着部１６０Ｂに対して摺動して当該バッテリ装着部１６０Ｂに装着される。バッテリパック１７０Ａ，１７０Ｂの装着方向である矢印１Ａおよび矢印１Ｂの方向は、ハンマビット１１９の駆動軸が延在する駆動軸延在方向に平行な方向である。このガイドレール１６１が、本発明における「バッテリ係合部」に対応する実施構成例である。 As shown in FIG. 1, the battery mounting portions 160A and 160B have guide rails 161 that can be engaged with the batteries 170A and 170B, and concave locking portions that can be locked with the hooks 175 of the battery packs 170A and 170B ( A terminal (not shown) to which the terminals 179 of the battery packs 170A and 170B are electrically connected is provided. The guide rail 161 is composed of a pair of rail members and extends in a direction parallel to the drive shaft of the hammer bit 119. That is, the guide rail 161 of the battery mounting portion 160A and the guide rail 161 of the battery mounting portion 160B are provided so as to extend on the same straight line parallel to the drive shaft of the hammer bit 119. Thereby, as shown in FIG. 2, battery pack 170A is slid with respect to battery mounting part 160A in the direction of arrow 1A and is mounted on battery mounting part 160A. On the other hand, the battery pack 170B is slid with respect to the battery mounting portion 160B in the direction of the arrow 1B and is mounted on the battery mounting portion 160B. The directions of the arrows 1A and 1B, which are the mounting directions of the battery packs 170A and 170B, are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends. This guide rail 161 is an implementation configuration example corresponding to the “battery engaging portion” in the present invention.
　　図３～図６は、バッテリパック１７０Ａ，１７０Ｂの詳細を示している。図３に示すように、バッテリパック１７０Ａ，１７０Ｂは、概略的には略直方体のバッテリケース１７１と、バッテリケース１７１内に収容される複数の電池セル（図示省略）とを主体として構成される。バッテリパック１７０Ａ，１７０Ｂは、各バッテリ装着部１６０Ａ，１６０Ｂの下面に形成されたガイドレール１６１に沿ってスライドすることでバッテリ装着部１６０Ａ，１６０Ｂに取り外し可能に装着される。このバッテリパック１７０Ａ，１７０Ｂは同一形状であり、いずれのバッテリ装着部１６０Ａ，１６０Ｂにも装着可能である。 3 to 6 show details of the battery packs 170A and 170B. As shown in FIG. 3, the battery packs 170 </ b> A and 170 </ b> B are generally configured mainly by a substantially rectangular parallelepiped battery case 171 and a plurality of battery cells (not shown) accommodated in the battery case 171. The battery packs 170A and 170B are detachably mounted on the battery mounting portions 160A and 160B by sliding along guide rails 161 formed on the lower surfaces of the battery mounting portions 160A and 160B. The battery packs 170A and 170B have the same shape and can be mounted on any of the battery mounting portions 160A and 160B.
　図３に示すように、バッテリケース１７１の上面側には、バッテリ１７０Ａ，１７０Ｂの長手方向に沿って直線状に延びる一対の装着ガイド１７３が設けられている。この装着ガイド１７３は、バッテリ装着部１６０Ａ，１６０Ｂのガイドレール１６１と係合する。 As shown in FIG. 3, on the upper surface side of the battery case 171, a pair of mounting guides 173 extending linearly along the longitudinal direction of the batteries 170A and 170B are provided. The mounting guide 173 engages with the guide rails 161 of the battery mounting portions 160A and 160B.
　また、図３～図６に示すように、バッテリケース１７１の上面における略中央部には、バッテリ１７０Ａ，１７０Ｂをバッテリ装着部１６０Ａ，１６０Ｂに対してロックするためのフック１７５と、ロックを解除するための押しボタン１７７が設けられている。フック１７５は、バッテリケース１７１の上面から突出するようにバネ（図示省略）によって付勢されている。また、押しボタン１７７は、バッテリケース１７１が装着される際に摺動（移動）される方向（装着方向とも称す）における後側に配置されており、押しボタン１７７が押されたときに、フック１７５がバッテリケース１７１の上面から引っ込む方向へ移動するように、フック１７５と機械的に連結されている。 As shown in FIGS. 3 to 6, a hook 175 for locking the batteries 170A and 170B with respect to the battery mounting portions 160A and 160B and a lock are released at a substantially central portion on the upper surface of the battery case 171. A push button 177 is provided. The hook 175 is biased by a spring (not shown) so as to protrude from the upper surface of the battery case 171. The push button 177 is disposed on the rear side in a direction (also referred to as a mounting direction) in which the battery case 171 is slid (moved) when the battery case 171 is mounted, and when the push button 177 is pressed, The 175 is mechanically connected to the hook 175 so that the 175 moves in the direction of retracting from the upper surface of the battery case 171.
　図２に示すように、バッテリ１７０Ａ，１７０Ｂがバッテリ装着部１６０Ａ，１６０Ｂに装着されると、フック１７５がバッテリ装着部１６０Ａ，１６０Ｂの係止部と係合する。これにより、バッテリ１７０Ａ，１７０Ｂがバッテリ装着部１６０Ａ，１６０Ｂに対してそれぞれ固定される。このとき、バッテリ１７０Ａ，１７０Ｂのターミナル１７９がバッテリ装着部１６０Ａ，１６０Ｂのそれぞれのターミナルと電気的に接続され、ハンマドリル１００に対して電流の供給が可能となる。バッテリ装着部１６０Ａ，１６０Ｂに装着されたバッテリパック１７０Ａ，１７０Ｂは、それぞれのバッテリパック１７０Ａ，１７０Ｂの装着方向（挿入方向）における前端面が互いに対向するように配置される。なお、バッテリ装着部１６０Ａに装着されたバッテリパック１７０Ａの長手方向とバッテリ装着部１６０Ｂに装着されたバッテリパック１７０Ｂの長手方向は、共にハンマビット１１９の長軸方向に平行である。 As shown in FIG. 2, when the batteries 170A and 170B are mounted on the battery mounting portions 160A and 160B, the hooks 175 are engaged with the locking portions of the battery mounting portions 160A and 160B. Thereby, batteries 170A and 170B are fixed to battery mounting portions 160A and 160B, respectively. At this time, the terminals 179 of the batteries 170A and 170B are electrically connected to the terminals of the battery mounting portions 160A and 160B, and current can be supplied to the hammer drill 100. The battery packs 170A and 170B attached to the battery attachment portions 160A and 160B are arranged such that the front end surfaces in the attachment direction (insertion direction) of the battery packs 170A and 170B are opposed to each other. The longitudinal direction of the battery pack 170A attached to the battery attachment portion 160A and the longitudinal direction of the battery pack 170B attached to the battery attachment portion 160B are both parallel to the long axis direction of the hammer bit 119.
　以上の第１実施形態においては、それぞれのバッテリ装着部１６０Ａ，１６０Ｂにバッテリパック１７０Ａ，１７０Ｂが取り外し可能に装着される。そのため、ハンマドリル１００が、例えば３６Ｖ仕様の場合であれば、１８Ｖのバッテリパック１７０Ａ，１７０Ｂがそれぞれ装着されて、電気的に直列に接続される。１８Ｖのバッテリパックは、３６Ｖのバッテリパックに比べて軽いため、作業者は、バッテリパック１７０Ａ，１７０Ｂの着脱作業を簡単に行うことができる。なお、ハンマドリル１００が、例えば１８Ｖ仕様の場合であれば、２つのバッテリパック１７０Ａ、１７０Ｂは電気的に並列に接続されるように構成されている。さらに、例えばハンマドリル１００が３６Ｖと１８Ｖのどちらの電圧でも駆動可能である場合には、バッテリパック１７０Ａ，１７０Ｂの電気的な接続態様を直列と並列との間で切り替えるように構成されている。この場合には、作業者によってバッテリパック１７０Ａ，１７０Ｂの接続態様が切り替え可能な切替スイッチが設けられていることが好ましい。 In the first embodiment described above, the battery packs 170A and 170B are detachably attached to the battery attachment portions 160A and 160B. Therefore, if the hammer drill 100 is, for example, in the case of 36V specification, 18V battery packs 170A and 170B are mounted and electrically connected in series. Since the 18V battery pack is lighter than the 36V battery pack, the operator can easily attach and detach the battery packs 170A and 170B. If the hammer drill 100 is, for example, in the 18V specification, the two battery packs 170A and 170B are configured to be electrically connected in parallel. Further, for example, when the hammer drill 100 can be driven by either 36V or 18V, the electrical connection mode of the battery packs 170A and 170B is switched between series and parallel. In this case, it is preferable that a changeover switch that can switch the connection mode of the battery packs 170A and 170B by an operator is provided.
　以上の第１実施形態によれば、バッテリパック１７０Ａは、バッテリ装着部１６０Ｂに近づく方向（図２の１Ａ方向）に向かって移動することで、バッテリ装着部１６０Ａに装着される。一方、バッテリパック１７０Ｂは、バッテリ装着部１６０Ａに近づく方向（図２の１Ｂ方向）に向かって移動することで、バッテリ装着部１６０Ｂに装着される。すなわち、２つのバッテリパック１７０Ａ，１７０Ｂが同一直線上を互いに異なる方向に移動されて装着される。したがって、２つのバッテリパック１７０Ａ，１７０Ｂを同時にバッテリ装着部１６０Ａ、１６０Ｂに装着する場合には、バッテリパック１７０Ａを装着するための力とバッテリパック１６０Ｂを装着するための力が相殺される。 According to the first embodiment described above, the battery pack 170A is attached to the battery attachment portion 160A by moving in the direction approaching the battery attachment portion 160B (direction 1A in FIG. 2). On the other hand, the battery pack 170B is attached to the battery attachment part 160B by moving in a direction approaching the battery attachment part 160A (direction 1B in FIG. 2). That is, the two battery packs 170A and 170B are moved and mounted on the same straight line in different directions. Therefore, when two battery packs 170A and 170B are simultaneously mounted on battery mounting portions 160A and 160B, the force for mounting battery pack 170A and the force for mounting battery pack 160B are offset.
　また、一般にバッテリパック１７０Ａ，１７０Ｂは、一方に長い略直方体として形成される。第１実施形態によれば、ハンマビット１１９の長軸方向にバッテリ装着部１６０Ａ，１６０Ｂが並んで配置されており、バッテリパック１７０Ａ，１７０Ｂは、ハンマビット１１９の長軸方向に摺動することで、バッテリパック１７０Ａ，１７０Ｂの長手方向がハンマビット１１９の長軸方向に一致するようにそれぞれのバッテリ装着部１６０Ａ，１６０Ｂに保持される。したがって、２つのバッテリパックを装着可能なハンマドリル１００において、当該ハンマドリル１００の左右方向（ハンマビット１１９の長軸方向に直交する方向）の長さを短くすることができる。 In general, the battery packs 170A and 170B are formed as a substantially rectangular parallelepiped that is long on one side. According to the first embodiment, the battery mounting portions 160A and 160B are arranged side by side in the major axis direction of the hammer bit 119, and the battery packs 170A and 170B slide in the major axis direction of the hammer bit 119. The battery packs 170A and 170B are held by the battery mounting portions 160A and 160B so that the longitudinal direction of the battery packs 170A and 170B coincides with the long axis direction of the hammer bit 119. Therefore, in the hammer drill 100 to which two battery packs can be attached, the length of the hammer drill 100 in the left-right direction (direction perpendicular to the major axis direction of the hammer bit 119) can be shortened.
　また、第１実施形態によれば、バッテリパック１７０Ａ，１７０Ｂの装着ガイド１７３をバッテリ装着部１６０Ａ，１６０Ｂのガイドレール１６１に沿って摺動させることで、バッテリパック１７０Ａ，１７０Ｂをバッテリ装着部１６０Ａ，１６０Ｂに装着する装着作業を容易に行うことができる。 Further, according to the first embodiment, the battery packs 170A and 170B are slid along the guide rails 161 of the battery mounting portions 160A and 160B by sliding the mounting guides 173 of the battery packs 170A and 170B. The mounting operation for mounting on 160B can be easily performed.
　また、第１実施形態によれば、ハンドグリップ１０９の上端部はモータハウジング１０３に連接されており、ハンドグリップ１０９の下端部にはバッテリ装着部１６０Ａ，１６０Ｂが設けられている。そのため、作業者がサイドハンドル１０９を把持したときの、ハンマドリル１００のバランスをとることができる。 Further, according to the first embodiment, the upper end portion of the hand grip 109 is connected to the motor housing 103, and battery mounting portions 160 </ b> A and 160 </ b> B are provided at the lower end portion of the hand grip 109. Therefore, the hammer drill 100 can be balanced when the operator grips the side handle 109.
（第２実施形態）
　次に、第２実施形態につき、図７を参照して説明する。第２実施形態におけるハンマドリル１００は、第１実施形態のハンマドリル１００とは、バッテリ装着部１６０Ａ，１６０Ｂの配置場所が異なる。バッテリ装着部１６０Ａ，１６０Ｂ以外の構成については、第１実施形態のハンマドリル１００と同様の構成を有しており、同じ符号を付して説明を省略する。 (Second Embodiment)
Next, a second embodiment will be described with reference to FIG. The hammer drill 100 according to the second embodiment differs from the hammer drill 100 according to the first embodiment in the location of the battery mounting portions 160A and 160B. The configuration other than the battery mounting portions 160A and 160B has the same configuration as the hammer drill 100 of the first embodiment, and the same reference numerals are given and description thereof is omitted.
　第２実施形態においては、図７に示すように、ハンドグリップ１０９が延在する方向における本体部１０１の上部側（図７の上方側）にバッテリ装着部１６０Ａ，１６０Ｂが配置されている。バッテリパック１７０Ａは、矢印２Ａの方向にバッテリ装着部１６０Ａに対して摺動して当該バッテリ装着部１６０Ａに装着される。一方、バッテリパック１７０Ｂは、矢印２Ｂの方向にバッテリ装着部１６０Ｂに対して摺動して当該バッテリ装着部１６０Ｂに装着される。矢印２Ａおよび矢印２Ｂの方向は、ハンマビット１１９の駆動軸が延在する駆動軸延在方向に平行な方向である。 In the second embodiment, as shown in FIG. 7, battery mounting portions 160A and 160B are arranged on the upper side (upper side in FIG. 7) of the main body 101 in the direction in which the handgrip 109 extends. The battery pack 170A is attached to the battery attachment portion 160A by sliding relative to the battery attachment portion 160A in the direction of the arrow 2A. On the other hand, the battery pack 170B is attached to the battery mounting portion 160B by sliding with respect to the battery mounting portion 160B in the direction of the arrow 2B. The directions of arrows 2A and 2B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
　第２実施形態によれば、ハンドグリップ１０９が延在する方向に関して、バッテリ装着部１６０Ａ，１６０Ｂが、ハンドグリップ１０９と本体部１０１が連接する本体部１０１の上側に配置される。これにより、本体部１０１上部の空きスペースが有効に利用される。 According to the second embodiment, the battery mounting portions 160A and 160B are arranged on the upper side of the main body portion 101 where the hand grip 109 and the main body portion 101 are connected in the direction in which the hand grip 109 extends. Thereby, the empty space above the main body 101 is effectively used.
（第３実施形態）
　次に、第３実施形態につき、図８を参照して説明する。第３実施形態におけるハンマドリル１００は、第１実施形態のハンマドリル１００に比べて、サポート部材１０７が設けられていない構成である。サポート部材１０７以外の構成については、第１実施形態のハンマドリル１００と同様の構成を有しており、同じ符号を付して説明を省略する。 (Third embodiment)
Next, a third embodiment will be described with reference to FIG. The hammer drill 100 according to the third embodiment is configured such that the support member 107 is not provided as compared with the hammer drill 100 according to the first embodiment. About the structure other than the support member 107, it has the structure similar to the hammer drill 100 of 1st Embodiment, attaches | subjects the same code | symbol and abbreviate | omits description.
　第３実施形態においては、図８に示すように、バッテリパック１７０Ａは、矢印３Ａの方向にバッテリ装着部１６０Ａに対して摺動して当該バッテリ装着部１６０Ａに装着される。一方、バッテリパック１７０Ｂは、矢印３Ｂの方向にバッテリ装着部１６０Ｂに対して摺動して当該バッテリ装着部１６０Ｂに装着される。矢印３Ａおよび矢印３Ｂの方向は、ハンマビット１１９の駆動軸が延在する駆動軸延在方向に平行な方向である。 In the third embodiment, as shown in FIG. 8, the battery pack 170A is slid with respect to the battery mounting portion 160A in the direction of the arrow 3A and is mounted on the battery mounting portion 160A. On the other hand, the battery pack 170B slides with respect to the battery mounting portion 160B in the direction of the arrow 3B and is mounted on the battery mounting portion 160B. The directions of the arrows 3A and 3B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
（第４実施形態）
　次に、第４実施形態につき、図９を参照して説明する。第４実施形態におけるハンマドリル１００は、第１実施形態のハンマドリル１００とは、本体部１０１に対するハンドグリップ１０９の連接場所が異なる。ハンドグリップ１０９の連接場所以外の構成については、第１実施形態のハンマドリル１００と同様の構成を有しており、同じ符号を付して説明を省略する。 (Fourth embodiment)
Next, a fourth embodiment will be described with reference to FIG. The hammer drill 100 according to the fourth embodiment is different from the hammer drill 100 according to the first embodiment in the place where the hand grip 109 is connected to the main body 101. The configuration other than the connection location of the handgrip 109 has the same configuration as the hammer drill 100 of the first embodiment, and the same reference numerals are given and description thereof is omitted.
　第４実施形態においては、図９に示すように、バッテリパック１７０Ａは、矢印４Ａの方向にバッテリ装着部１６０Ａに対して摺動して当該バッテリ装着部１６０Ａに装着される。一方、バッテリパック１７０Ｂは、矢印４Ｂの方向にバッテリ装着部１６０Ｂに対して摺動して当該バッテリ装着部１６０Ｂに装着される。矢印４Ａおよび矢印４Ｂの方向は、ハンマビット１１９の駆動軸が延在する駆動軸延在方向に平行な方向である。 In the fourth embodiment, as shown in FIG. 9, the battery pack 170A is slid with respect to the battery mounting portion 160A in the direction of the arrow 4A and is mounted on the battery mounting portion 160A. On the other hand, the battery pack 170B is attached to the battery mounting portion 160B by sliding with respect to the battery mounting portion 160B in the direction of the arrow 4B. The directions of the arrows 4A and 4B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
　ハンドグリップ１０９のグリップ部１０９Ａは、モータハウジング１０３の後方（図９の右端部）において、モータハウジング１０３の上部部分に連接されている。さらに、グリップ部１０９Ａは、ハンマビット１１９の長軸方向に交差する図９の上下方向（ハンドル延在方向とも称す）に延在するように配置されている。これにより、作業者に把持される把持領域としてのグリップ部１０９Ａがハンマビット１１９の駆動軸線上に配置される。したがって、被加工材に対して加工を行う際に、作業者が駆動軸上に設けられたグリップ部１０９Ａに力を付与することができる。その結果、加工作業の際にグリップ部１０９Ａに付与された作業者の力が被加工材まで合理的に（直線状に）伝達される。このグリップ部１０９Ａが、本発明における「グリップ部」に対応する実施構成例である。なお、ハンドグリップ１０９のサポート部１０７は、グリップ部１０９Ａの下端部とモータハウジング１０３の下部に連接されている。 The grip portion 109 </ b> A of the hand grip 109 is connected to the upper portion of the motor housing 103 at the rear of the motor housing 103 (the right end portion in FIG. 9). Further, the grip portion 109A is disposed so as to extend in the up-down direction (also referred to as a handle extending direction) in FIG. 9 intersecting the long axis direction of the hammer bit 119. As a result, the grip portion 109 </ b> A as a grip region gripped by the operator is disposed on the drive axis of the hammer bit 119. Therefore, when processing the workpiece, the operator can apply a force to the grip portion 109A provided on the drive shaft. As a result, the operator's force imparted to the grip portion 109A during the machining operation is reasonably (linearly) transmitted to the workpiece. The grip portion 109A is an implementation configuration example corresponding to the “grip portion” in the present invention. The support portion 107 of the hand grip 109 is connected to the lower end portion of the grip portion 109 </ b> A and the lower portion of the motor housing 103.
（第５実施形態）
　次に、第５実施形態につき、図１０を参照して説明する。第５実施形態におけるハンマドリル１００は、第１実施形態のハンマドリル１００とは、モータハウジング１０３の形状および電動モータ１１０の配置形態が異なる。モータハウジング１０３の形状および電動モータ１１０の配置形態以外の構成については、第１実施形態のハンマドリル１００と同様の構成を有しており、同じ符号を付して説明を省略する。 (Fifth embodiment)
Next, a fifth embodiment will be described with reference to FIG. The hammer drill 100 according to the fifth embodiment is different from the hammer drill 100 according to the first embodiment in the shape of the motor housing 103 and the arrangement of the electric motor 110. The configuration other than the shape of the motor housing 103 and the arrangement of the electric motor 110 has the same configuration as that of the hammer drill 100 of the first embodiment, and the same reference numerals are given and description thereof is omitted.
　図１０に示すように、電動モータ１１０は、電動モータ１１０の回転軸とハンマビット１１９の駆動軸が交差するように配置されている。そのため、モータハウジング１０３は、ギアハウジング１０５から図１０の下方に延在するように形成されている。このように、電動モータ１１０の回転軸とハンマビット１１９の駆動軸が交差するハンマドリル１００においても、２つのバッテリ装着部１６０Ａ，１６０Ｂを設けられる。具体的には、一方のバッテリ装着部１６０Ａは、モータハウジング１０３の下端部に設けられ、他方のバッテリ装着部１６０Ｂは、ハンドグリップ１０９の下端部に設けられている。なお、モータハウジング１０３の下端部とハンドグリップ１０９の下端部は面一に設定されている。これにより、同一平面上に形成されたバッテリ装着部１６０Ａ，１６０Ｂに２つのバッテリパック１７０Ａ，１７０Ｂが装着される。なお、図１０においては、電動モータ１１０の回転軸とハンマビット１１９の駆動軸が直交するように電動モータ１１０が配置されているが、電動モータ１１０の回転軸が、上下方向に対して傾斜してハンマビット１１９の駆動軸に交差するように電動モータ１１０が配置されていてもよい。 As shown in FIG. 10, the electric motor 110 is disposed so that the rotating shaft of the electric motor 110 and the drive shaft of the hammer bit 119 intersect. Therefore, the motor housing 103 is formed so as to extend downward from the gear housing 105 in FIG. As described above, even in the hammer drill 100 in which the rotating shaft of the electric motor 110 and the driving shaft of the hammer bit 119 intersect, the two battery mounting portions 160A and 160B are provided. Specifically, one battery mounting portion 160 </ b> A is provided at the lower end portion of the motor housing 103, and the other battery mounting portion 160 </ b> B is provided at the lower end portion of the hand grip 109. The lower end portion of the motor housing 103 and the lower end portion of the hand grip 109 are set to be flush with each other. Thus, the two battery packs 170A and 170B are mounted on the battery mounting portions 160A and 160B formed on the same plane. In FIG. 10, the electric motor 110 is arranged so that the rotation shaft of the electric motor 110 and the drive shaft of the hammer bit 119 are orthogonal to each other. However, the rotation shaft of the electric motor 110 is inclined with respect to the vertical direction. Thus, the electric motor 110 may be disposed so as to intersect the drive shaft of the hammer bit 119.
　第５実施形態においては、図１０に示すように、バッテリパック１７０Ａは、矢印５Ａの方向にバッテリ装着部１６０Ａに対して摺動して当該バッテリ装着部１６０Ａに装着される。一方、バッテリパック１７０Ｂは、矢印５Ｂの方向にバッテリ装着部１６０Ｂに対して摺動して当該バッテリ装着部１６０Ｂに装着される。矢印５Ａおよび矢印５Ｂの方向は、ハンマビット１１９の駆動軸が延在する駆動軸延在方向に平行な方向である。 In the fifth embodiment, as shown in FIG. 10, the battery pack 170A is slid with respect to the battery mounting portion 160A in the direction of the arrow 5A and is mounted on the battery mounting portion 160A. On the other hand, the battery pack 170B is slid with respect to the battery mounting portion 160B in the direction of the arrow 5B and is mounted on the battery mounting portion 160B. The directions of the arrows 5A and 5B are parallel to the drive shaft extending direction in which the drive shaft of the hammer bit 119 extends.
　なお、以上の第２実施形態から第５実施形態においても、第１実施形態と同様の効果が得られる。 In addition, also in the above 2nd Embodiment to 5th Embodiment, the effect similar to 1st Embodiment is acquired.
　以上においては、バッテリ装着部１６０Ａ，１６０Ｂは、ハンマビット１１９の長軸方向に直列状に並んで配置されていたが、これには限られない。例えば、バッテリ装着部は、ハンマビット１１９の長軸方向（先端工具の駆動軸が延在する方向）およびハンドル延在方向の両方の方向に交差する交差方向に直列状に並んで配置されていてもよい。この場合には、バッテリ装着部のガイドレールが交差方向に延在することが好ましい。また、のような構成は、バッテリパックの短手方向が交差方向に平行に、バッテリ装着部のガイドレールに対してバッテリパックを摺動させて、バッテリパックをバッテリ装着部に装着させる構成において有用である。 In the above description, the battery mounting portions 160A and 160B are arranged in series in the major axis direction of the hammer bit 119, but are not limited thereto. For example, the battery mounting portions are arranged in series in the crossing direction that intersects both the major axis direction of the hammer bit 119 (the direction in which the drive shaft of the tip tool extends) and the handle extending direction. Also good. In this case, it is preferable that the guide rail of the battery mounting portion extends in the crossing direction. Further, such a configuration is useful in a configuration in which the battery pack is mounted on the battery mounting portion by sliding the battery pack with respect to the guide rail of the battery mounting portion so that the short side direction of the battery pack is parallel to the intersecting direction. It is.
　また、以上においては、２つのバッテリ装着部１６０Ａ，１６０Ｂが設けられていたが、３つ以上のバッテリ装着部が設けられていてもよい。この場合には、３つ以上のバッテリ装着部のうち２つのバッテリ装着部が同一直線上に並んで設けられていればよい。 In the above description, the two battery mounting portions 160A and 160B are provided. However, three or more battery mounting portions may be provided. In this case, it is only necessary that two battery mounting portions among the three or more battery mounting portions are provided side by side on the same straight line.
　また、以上においては、動力工具の一例として、ハンマビット１１９が打撃動作と回転動作を行うハンマドリル１００について説明したが、これには限られない。例えば、打撃工具としてハンマビット１１９が打撃動作のみを行うハンマに本発明を適用してもよい。また、ハンマビット１１９が回転動作のみを行うドリルに本発明を適用してもよい。また、動力工具として、電動ドライバ、電動レンチ、電動グラインダ、電動レシプロソー、電動ジグソーに本発明を適用してもよい。 In the above description, the hammer drill 119 in which the hammer bit 119 performs a striking operation and a rotating operation has been described as an example of a power tool, but is not limited thereto. For example, the present invention may be applied to a hammer in which the hammer bit 119 performs only a striking operation as a striking tool. Further, the present invention may be applied to a drill in which the hammer bit 119 performs only a rotating operation. Moreover, you may apply this invention to an electric driver, an electric wrench, an electric grinder, an electric reciprocating saw, and an electric jigsaw as a power tool.
　上記発明の趣旨に鑑み、本発明に係る動力工具は、下記の態様が構成可能である。
（態様）
　取り外し可能に取り付けられた先端工具を当該先端工具の駆動軸に対して駆動させる動力工具であって、
　前記先端工具を駆動するためのモータと、
　前記モータを収容する工具本体と、
　前記モータに電流を供給するためのバッテリが取り外し可能に装着されるバッテリ装着部とを有し、前記バッテリ装着部は２つ形成されており、前記バッテリ装着部に装着された前記バッテリから前記モータに対して電流を供給可能に構成されており、
　２つの前記バッテリ装着部は、所定方向に延在する直線上に並んで設けられており、
　前記バッテリ装着部はバッテリ係合部を有し、前記バッテリが前記バッテリ係合部に係合することによって前記バッテリを保持するように構成されており、
　２つの前記バッテリ装着部のうちの一方の前記バッテリ装着部には、他方の前記バッテリ装着部に近づく方向に、前記バッテリが前記バッテリ係合部に対して摺動することで装着されるように構成されており、
　２つの前記バッテリ装着部のうちの他方の前記バッテリ装着部には、一方の前記バッテリ装着部に近づく方向に、前記バッテリが前記バッテリ係合部に対して摺動することで装着されるように構成されており、これにより一方の前記バッテリ装着部に装着された前記バッテリの挿入方向における前側の面と他方の前記バッテリ装着部に装着された前記バッテリの挿入方向における前側の面が互いに対向して配置されるように構成されていることを特徴とする動力工具。 In view of the gist of the present invention, the power tool according to the present invention can be configured in the following manner.
(Aspect)
A power tool for driving a removably attached tip tool with respect to a drive shaft of the tip tool,
A motor for driving the tip tool;
A tool body for housing the motor;
A battery mounting portion on which a battery for supplying current to the motor is detachably mounted; and two battery mounting portions are formed, and the motor is driven from the battery mounted on the battery mounting portion. Is configured to supply current to
The two battery mounting portions are provided side by side on a straight line extending in a predetermined direction,
The battery mounting portion has a battery engaging portion, and is configured to hold the battery by engaging the battery with the battery engaging portion.
The battery is mounted on one of the two battery mounting portions by sliding the battery relative to the battery engaging portion in a direction approaching the other battery mounting portion. Configured,
The battery is mounted on the other battery mounting portion of the two battery mounting portions by sliding the battery relative to the battery engaging portion in a direction approaching the one battery mounting portion. Thus, a front surface in the insertion direction of the battery mounted on one of the battery mounting portions and a front surface in the insertion direction of the battery mounted on the other battery mounting portion are opposed to each other. It is comprised so that it may be arrange | positioned, The power tool characterized by the above-mentioned.
（本実施形態の各構成要素と本発明の各構成要素の対応関係）
　本実施形態の各構成要素と本発明の各構成要素の対応関係を以下の通り示す。なお、本実施形態は、本発明を実施するための形態の一例を示すものであり、本発明は、本実施形態の構成に限定されるものではない。
　本体部１０１が、本発明の「工具本体」に対応する構成の一例である。
　ハンマビット１１９が、本発明の「工具ビット」に対応する構成の一例である。
　電動モータ１１０が、本発明の「モータ」に対応する構成の一例である。
　バッテリ装着部１６０Ａ，１６０Ｂが、本発明の「バッテリ装着部」に対応する構成の一例である。
　サポート部材１０７が、本発明の「補強部材」に対応する構成の一例である。
　ハンドグリップ１０９が、本発明の「ハンドル」に対応する構成の一例である。
　ガイドレール１６１が、本発明の「バッテリ係合部」に対応する構成の一例である。 (Correspondence between each component of this embodiment and each component of the present invention)
The correspondence between each component of the present embodiment and each component of the present invention is shown as follows. In addition, this embodiment shows an example of the form for implementing this invention, and this invention is not limited to the structure of this embodiment.
The main body 101 is an example of a configuration corresponding to the “tool main body” of the present invention.
The hammer bit 119 is an example of a configuration corresponding to the “tool bit” of the present invention.
The electric motor 110 is an example of a configuration corresponding to the “motor” of the present invention.
The battery mounting portions 160A and 160B are an example of a configuration corresponding to the “battery mounting portion” of the present invention.
The support member 107 is an example of a configuration corresponding to the “reinforcing member” of the present invention.
The hand grip 109 is an example of a configuration corresponding to the “handle” of the present invention.
The guide rail 161 is an example of a configuration corresponding to the “battery engaging portion” of the present invention.
１００　ハンマドリル
１０１　本体部
１０３　モータハウジング
１０５　ギアハウジング
１０７　サポート部材
１０９　ハンドグリップ
１０９Ａ　グリップ部
１１０　電動モータ
１１９　ハンマビット
１２０　運動変換機構
１４０　打撃要素
１５０　動力伝達機構
１５９　ツールホルダ
１６０　装着部
１６０Ａ　バッテリ装着部
１６０Ｂ　バッテリ装着部
１６１　ガイドレール
１７０Ａ　バッテリパック
１７０Ｂ　バッテリパック
１７１　バッテリケース
１７３　装着ガイド
１７５　フック
１７７　押しボタン
１７９　ターミナル DESCRIPTION OF SYMBOLS 100 Hammer drill 101 Main body part 103 Motor housing 105 Gear housing 107 Support member 109 Hand grip 109A Grip part 110 Electric motor 119 Hammer bit 120 Motion conversion mechanism 140 Striking element 150 Power transmission mechanism 159 Tool holder 160 Mounting part 160A Battery mounting part 160B Battery mounting Part 161 guide rail 170A battery pack 170B battery pack 171 battery case 173 mounting guide 175 hook 177 push button 179 terminal

Claims (9)

  1. 　取り外し可能に取り付けられた先端工具を当該先端工具の駆動軸に対して駆動させる動力工具であって、
    　前記先端工具を駆動するためのモータと、
    　前記モータを収容する工具本体と、
    　前記モータに電流を供給するためのバッテリが取り外し可能に装着されるバッテリ装着部と、を有し、前記バッテリ装着部は２つ形成されており、前記バッテリ装着部に装着された前記バッテリから前記モータに対して電流を供給可能に構成されており、
    　２つの前記バッテリ装着部は、所定方向に延在する直線上に並んで設けられており、
    　前記バッテリ装着部はバッテリ係合部を有し、前記バッテリが前記バッテリ係合部に係合することによって前記バッテリを保持するように構成されており、
    　２つの前記バッテリ装着部のうちの一方の前記バッテリ装着部には、他方の前記バッテリ装着部に近づく方向に、前記バッテリが前記バッテリ係合部に対して摺動することで装着されるように構成されており、
    　２つの前記バッテリ装着部のうちの他方の前記バッテリ装着部には、一方の前記バッテリ装着部に近づく方向に、前記バッテリが前記バッテリ係合部に対して摺動することで装着されるように構成されていることを特徴とする動力工具。     A power tool for driving a removably attached tip tool with respect to a drive shaft of the tip tool,
    A motor for driving the tip tool;
    A tool body for housing the motor;
    A battery mounting portion on which a battery for supplying current to the motor is detachably mounted, and the two battery mounting portions are formed from the battery mounted on the battery mounting portion. It is configured to supply current to the motor,
    The two battery mounting portions are provided side by side on a straight line extending in a predetermined direction,
    The battery mounting portion has a battery engaging portion, and is configured to hold the battery by engaging the battery with the battery engaging portion.
    The battery is mounted on one of the two battery mounting portions by sliding the battery relative to the battery engaging portion in a direction approaching the other battery mounting portion. Configured,
    The battery is mounted on the other battery mounting portion of the two battery mounting portions by sliding the battery relative to the battery engaging portion in a direction approaching the one battery mounting portion. A power tool characterized by comprising.
  2. 　請求項１に記載の動力工具であって、
    　前記所定方向は、前記駆動軸に平行な方向として規定されていることを特徴とする動力工具。     The power tool according to claim 1,
    The power tool according to claim 1, wherein the predetermined direction is defined as a direction parallel to the drive shaft.
  3. 　請求項１または２に記載の動力工具であって、
    　前記工具本体に連接されたハンドルを有し、
    　前記ハンドルは、前記駆動軸に交差するハンドル延在方向に延在するように設けられており、前記ハンドル延在方向に関する少なくとも一方の端部側が前記工具本体に連接されるように構成されており、
    　２つの前記バッテリ装着部は、前記ハンドル延在方向に関する前記ハンドルの他方の端部側に設けられていることを特徴とする動力工具。     The power tool according to claim 1 or 2,
    A handle connected to the tool body;
    The handle is provided so as to extend in a handle extending direction that intersects the drive shaft, and at least one end side in the handle extending direction is configured to be connected to the tool body. ,
    Two said battery mounting parts are provided in the other edge part side of the said handle regarding the said handle extending direction, The power tool characterized by the above-mentioned.
  4. 　請求項１または２に記載の動力工具であって、
    　前記工具本体に連接されるハンドルを有し、
    　前記ハンドルは、前記駆動軸に交差するハンドル延在方向に延在するように設けられており、前記ハンドル延在方向に関する少なくとも一方の端部側が前記工具本体に連接されるように構成されており、
    　２つの前記バッテリ装着部は、前記工具本体の、前記ハンドル延在方向に関する前記一方の端部側に設けられていることを特徴とする動力工具。     The power tool according to claim 1 or 2,
    A handle connected to the tool body;
    The handle is provided so as to extend in a handle extending direction that intersects the drive shaft, and at least one end side in the handle extending direction is configured to be connected to the tool body. ,
    Two said battery mounting parts are provided in the said one edge part side regarding the said handle main body's said handle extension direction, The power tool characterized by the above-mentioned.
  5. 　請求項１～４のいずれか１項に記載の動力工具であって、
    　前記モータは、当該モータの回転軸と前記駆動軸が交差するように設けられていることを特徴とする動力工具。     The power tool according to any one of claims 1 to 4,
    The power tool, wherein the motor is provided so that a rotation shaft of the motor and the drive shaft intersect.
  6. 　請求項１～４のいずれか１項に記載の動力工具であって、
    　前記モータは、当該モータの回転軸と前記駆動軸が平行に設けられていることを特徴とする動力工具。     The power tool according to any one of claims 1 to 4,
    The power tool, wherein the motor has a rotation shaft of the motor and the drive shaft provided in parallel.
  7. 　請求項３または４に記載の動力工具であって、
    　前記モータは、当該モータの回転軸と前記駆動軸が平行に設けられており、
    　前記ハンドルは、作業者に把持されるグリップ部を有し、
    　前記グリップ部は、前記駆動軸線上に設けられていることを特徴とする動力工具。     The power tool according to claim 3 or 4,
    The motor has a rotation shaft of the motor and the drive shaft provided in parallel,
    The handle has a grip portion to be gripped by an operator,
    The power tool, wherein the grip portion is provided on the drive axis.
  8. 　請求項３または４に記載の動力工具であって、
    　前記モータは、当該モータの回転軸と前記駆動軸が平行に設けられており、
    　前記ハンドルは、一端側が前記工具本体に連接されたグリップ部と、当該グリップ部の他端側と前記工具本体をさらに連結する補強部材を有することを特徴とする動力工具。     The power tool according to claim 3 or 4,
    The motor has a rotation shaft of the motor and the drive shaft provided in parallel,
    The handle has a grip portion having one end connected to the tool body, and a reinforcing member that further connects the other end side of the grip portion and the tool body.
  9. 　請求項１～８のいずれか１項に記載の動力工具であって、
    　一方の前記バッテリ装着部に前記バッテリが装着される際に前記バッテリ係合部に対して前記バッテリが摺動される摺動方向に関する当該一方のバッテリの前面と、
    　他方の前記バッテリ装着部に前記バッテリが装着される際に、前記バッテリ係合部に対して前記バッテリが摺動される摺動方向に関する当該他方のバッテリの前面が向かい合うように、２つの前記バッテリがそれぞれの前記バッテリ装着部に装着されることを特徴とする動力工具。     The power tool according to any one of claims 1 to 8,
    The front surface of the one battery with respect to the sliding direction in which the battery slides with respect to the battery engaging portion when the battery is mounted on one of the battery mounting portions;
    When the battery is mounted on the other battery mounting portion, the two batteries are arranged such that the front surface of the other battery in the sliding direction in which the battery slides faces the battery engaging portion. Is mounted on each of the battery mounting portions.
PCT/JP2014/052350 2013-02-01 2014-01-31 Power tool WO2014119757A1 (en)

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DE112014000639.4T DE112014000639T5 (en) 2013-02-01 2014-01-31 power tool
US14/810,298 US20150328764A1 (en) 2013-02-01 2015-07-27 Power tool
US16/558,439 US11148272B2 (en) 2013-02-01 2019-09-03 Power tool
US17/473,054 US11597068B2 (en) 2013-02-01 2021-09-13 Power tool
US18/103,507 US12090617B2 (en) 2013-02-01 2023-01-31 Power tool

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US17/473,054 Continuation-In-Part US11597068B2 (en) 2013-02-01 2021-09-13 Power tool

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