JP7086801B2 - Strike tool - Google Patents

Description

The present invention relates to a striking tool configured to perform only an operation of linearly driving the tip tool.

A striking tool (for example, an electric hammer (keren)) that performs chipping work and scraping work by driving the tip tool linearly is known. Some such striking tools are provided with a locking mechanism that locks the operating member of the switch for driving the tip tool at the position where the switch is turned on (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2008-119755

According to the striking tool having the lock mechanism as described above, it is not necessary for the user to continue the pressing operation of the operating member during the chipping work or the cleaning work, so that the convenience is improved. On the other hand, such a striking tool is expected to further improve convenience.

An object of the present invention is to provide a technique that contributes to improvement of convenience in a striking tool configured to perform only an operation of linearly driving a tip tool.

According to one aspect of the present invention, there is provided a striking tool configured to only perform an operation of linearly driving the tip tool along a drive shaft extending in the front-rear direction. This striking tool includes a switch, an operation member, a first lock member, a second lock member, and a holding mechanism. The switch is a switch for driving a tip tool. The operating member is configured to be movable between an off position in which the switch is turned off and an on position in which the switch is turned on. The first lock member is configured so that the operation member can be locked at the on position. The second lock member is configured to be movable between a lock position in which the operation member can be locked in the off position and an unlock position in which the operation member cannot be locked in response to an external operation by the user. The holding mechanism is configured to hold the second locking member at each of the locking and unlocking positions.

In the striking tool of this embodiment, the tip tool is driven while the switch is on, and chipping work and cleaning work are performed. By locking the operation member in the on position by the first lock member, the user can eliminate the trouble of continuing the pressing operation of the operation member during the chipping work and the cleaning work. Further, for example, when the work is suspended for a while, the second lock member is placed in the lock position and the operation member is locked in the off position so that the tip tool is driven unintentionally. Since it can be prevented, the convenience is further improved. Further, since the second lock member is moved to one of the lock position and the unlock position and then held at that position by the holding mechanism, even if the user's external operation on the second lock member is released, the second lock member is held at that position. It does not return to the other position. That is, the operating member is reliably maintained in either the locked state in the off position or the state in which the movement from the off position to the on position is permitted. Therefore, for example, it is possible to eliminate the complicated operation of moving the operation member to the on position while the user holds the second lock member in the unlocked position.

In one aspect of the present invention, the striking tool may further include a grip portion extending in the vertical direction orthogonal to the drive axis. The operation member may be provided on the grip portion, and the second lock member may be arranged on the upper side of the grip portion. In this case, although the second lock member is different from the portion where the operation member is arranged, it is provided relatively close to the operation member, so that the configuration for locking the operation member should be relatively compact. Can be done.

In one aspect of the present invention, the second lock member may be movable in a direction intersecting the moving direction of the operating member between the locked position and the unlocked position. In this case, the user can easily lock or unlock the operating member in the off position by moving the second locking member in a direction intersecting the moving direction of the operating member. Further, since the operating directions of the operating member and the second lock member are different, it is possible to prevent the other member from being erroneously operated when operating one of the members.

In one aspect of the present invention, the holding mechanism includes an urging member, even if the second locking member is configured to hold the second locking member at each of the locked position and the unlocked position by using the urging force of the urging member. good. In this case, the user can easily position the second lock member by simply moving the second lock member held at either the lock position or the unlock position against the urging force of the urging member. You can switch.

Further, in one aspect of the present invention, both ends of the second lock member in the moving direction are arranged so as to be able to be externally operated by the user, and may have different configurations from each other. In this case, when the user moves the second lock member to the lock position or the unlock position, it becomes possible to easily recognize which end should be operated.

In one aspect of the present invention, the first lock member and the second lock member may be shared by a single lock member. That is, a single locking member may have both a function of locking the operating member in the on position and a function of locking in the off position. In this case, both functions can be realized with a more compact and simple configuration as compared with the case where the first lock member and the second lock member are provided as separate members.

In one aspect of the present invention, the operating member and the locking member may have a first interference portion and a second interference portion, respectively. Then, when the second interference portion is arranged on the movement path of the first interference portion, the lock member locks the operation member at the on position or the off position by the second interference portion interfering with the first interference portion. It may be configured to do so. Further, the outer surface of the second interference portion includes two surfaces arranged so as to intersect each other in the moving direction of the operating member, and of the two surfaces, the first surface arranged on the on-position side in the moving direction is the first surface. 1 The operating member is locked in the on position by abutting on the interference portion, and the second surface of the two surfaces arranged on the off position side in the moving direction abuts on the first interfering portion to lock the operating member. It may be locked in the off position. In addition, "on position side in the moving direction" and "off position side in the moving direction" are more specifically "the side where the operating member moves from the off position to the on position in the moving direction" and "the operating member in the moving direction". It may be paraphrased as "the side from the on position to the off position".

In this case, at the same position (the position where the second interference portion is arranged on the movement path of the first interference portion), the lock member has either the first surface or the second surface of the second interference portion as the first interference portion. Depending on whether they are in contact with each other, the function of locking the operating member in the on position or the function of locking in the off position can be exerted. Therefore, a lock member that can lock the operation member at the off position and the on position can be realized with a compact, simple, and easy-to-operate configuration.

In one aspect of the present invention, the lock member may be configured to be movable from the unlocked position in the first direction and in a second direction different from the first direction. Then, when the lock member is moved from the unlocked position to the predetermined position in the first direction, the lock member may be configured to lock the operation member in the on position as the first lock member. The lock member may be further configured to lock the operating member in the off position as the second lock member when moved from the unlocked position to the locked position in the second direction. That is, the lock member of this embodiment can exert a function of locking the operation member in the on position or a function of locking in the off position according to the movement direction (operation direction) from the unlock position. According to this aspect, two different operating directions are set with reference to the unlocked position for two different functions of a single locking member. Therefore, it is possible to realize a lock member whose operation method is easy for the user to understand. It is preferable that the first direction and the second direction are opposite directions.

In one aspect of the present invention, the operating member may be configured to restrict movement of the locking member from the unlocked position in the first direction at the off position. The operating member may be further configured to restrict the movement of the locking member from the unlocked position in the second direction at the on position. That is, the direction in which the lock member can move is limited according to the position of the operating member. According to this aspect, the user can easily recognize the direction in which the lock member should be moved according to the position of the operating member. Then, the lock member can exert an appropriate function according to the position of the operating member.

In one aspect of the present invention, the operating member and the locking member may each have a first interfering section and a second interfering section. The second interference portion may include an on-lock portion and an off-lock portion. The on-lock portion is configured to lock the operating member in the on-position by contacting the first interference portion on the off-position side of the first interference portion when the lock member is arranged at a predetermined position. There is. The off-lock portion is configured to lock the operating member in the off position by contacting the first interference portion on the on position side of the first interference portion when the lock member is arranged in the lock position. There is. In this case, a lock member that can lock the operation member at the off position and the on position can be realized with a compact, simple, and easy-to-operate configuration. In this embodiment, the on-lock portion and the off-lock portion may be configured as separate members, or may be shared by the same member.

In one aspect of the invention, the striking tool may further include a battery mounting portion configured to allow the rechargeable battery to be detached. With such a striking tool, the striking tool may be carried or stored with the battery as a power source installed. Therefore, by locking the operating member in the off position with the second locking member during transportation and storage, it is possible to prevent the tip tool from being unexpectedly driven for some reason, and the convenience is particularly improved. ..

It is a right side view of an electric hammer. It is sectional drawing of an electric hammer. It is the figure which looked at the lock member and the trigger which is in the foremost position from the right side. It is the figure which looked at the lock member and the trigger at the rearmost position from the right side. FIG. 5 is a cross-sectional view taken along the line VV of FIG. 1 when the lock member is in the unlocked position. FIG. 3 is a cross-sectional view taken along the line VI-VI of FIG. 1 when the lock member is in the locked position. It is the figure which looked at the lock member in the unlocked position and the trigger in the foremost position diagonally from the rear. It is the figure which looked at the lock member in the unlock position and the trigger trigger in the rearmost position diagonally from the front. It is the figure which looked at the trigger locked in the off position by the lock member in the lock position from the diagonal rear view. It is the figure which looked at the trigger locked in the on position by the lock member in the lock position from the diagonal front. It is sectional drawing when the lock member which concerns on the modification is in an unlocked position, and is the sectional drawing corresponding to FIG. It is explanatory drawing which shows the positional relationship between the lock member in the unlocked position and the trigger in the frontmost position when viewed from above. It is explanatory drawing which shows the positional relationship between both when the trigger locked in an off position by the lock member in an off-lock position is seen from above. It is explanatory drawing which shows the positional relationship between the lock member in the unlocked position and the trigger in the rearmost position when viewed from above. It is explanatory drawing which shows the positional relationship between the two when the trigger locked in the on position by the lock member in the on-lock position is seen from above.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, the electric hammer (electric keren) 1 is exemplified. The electric hammer 1 is an example of a striking tool configured to linearly drive the tip tool 91 along a predetermined drive shaft A1, and is used for chipping work and cleaning work.

First, a schematic configuration of the electric hammer 1 will be described. As shown in FIGS. 1 and 2, the outer shell of the electric hammer 1 is mainly formed of the main body housing 10 and the handle 15.

The main body housing 10 has a substantially L-shape and includes a drive mechanism accommodating portion 11 and a motor accommodating portion 13. The drive mechanism accommodating portion 11 is a portion extending along the drive shaft A1 and includes a tool holder 39 to which the tip tool 91 is attached / detached at one end in the drive shaft A1 direction. The motor accommodating portion 13 is connected to the portion of the drive mechanism accommodating portion 11 on the opposite side of the drive mechanism accommodating portion 11 where the tool holder 39 is provided, and extends in a direction intersecting the drive shaft A1 (specifically, a direction substantially orthogonal to each other). It is the part to do. The drive mechanism accommodating portion 11 accommodates the motion conversion mechanism 3 and the striking mechanism 4, which will be described later, while the motor accommodating portion 13 accommodates the motor 2.

In the following description, for convenience, the extending direction of the drive shaft A1 of the electric hammer 1 (hereinafter, also referred to as the drive shaft A1 direction) is defined as the front-rear direction of the electric hammer 1, and one end of the tool holder 39 is provided. The portion side is defined as the front side (also referred to as the tip region side) of the electric hammer 1, and the opposite side is defined as the rear side. Further, the direction orthogonal to the drive shaft A1 and corresponding to the extending direction of the motor accommodating portion 13 is defined as the vertical direction of the electric hammer 1, and the motor accommodating portion 13 projects from the drive mechanism accommodating portion 11. The direction is defined as downward and the opposite direction is defined as upward. Further, the direction orthogonal to the front-back direction and the up-down direction is defined as the left-right direction.

The handle 15 is substantially C-shaped and includes a grip portion 151 and a connecting portion 153 and 156. The grip portion 151 is a long portion gripped by the user, and is arranged behind the main body housing 10 so as to extend in the vertical direction. A trigger 16 that allows the user to perform a pressing operation (pulling operation) with a finger is provided on the front portion of the grip portion 151. The connecting portions 153 and 156 project forward from the upper end portion and the lower end portion of the grip portion 151, respectively, and are connected to the rear end portion of the main body housing 10. A battery mounting portion 159 to which a rechargeable battery 93 can be attached and detached is provided below the lower connecting portion 156. Since the configuration of the battery mounting portion 159 is well known, detailed description thereof will be omitted.

Hereinafter, the detailed configuration of the electric hammer 1 will be described.

First, the internal structure of the main body housing 10 will be described. As shown in FIG. 2, the motor 2 is housed in the central part of the motor housing part 13 in the main body housing 10. In this embodiment, a DC brushless motor is adopted as the motor 2. The motor 2 is arranged so that the motor shaft 23 that rotates together with the rotor 21 extends in the vertical direction perpendicular to the drive shaft A1. A controller 27 for controlling the drive of the motor 2 is accommodated in the lower end portion of the motor accommodating portion 13.

Further, the motion conversion mechanism 3 is housed in the rear portion of the drive mechanism accommodating portion 11, and the striking mechanism 4 is accommodated in the front portion of the drive mechanism accommodating portion 11. The motion conversion mechanism 3 is configured to convert the rotational motion of the motor shaft 23 into a linear motion and transmit it to the striking mechanism 4. In the present embodiment, as the motion conversion mechanism 3, a crank mechanism including a crankshaft 31, an articulated rod 33, a piston 35, and a cylinder 37 is adopted. The striking mechanism 4 is configured to apply a striking force in the direction of the drive shaft A1 to the tip tool 91. In this embodiment, the striking mechanism 4 includes a striker 41 and an impact bolt 43. Since the configurations of the motion conversion mechanism (crank mechanism) 3 and the striking mechanism 4 are well known, detailed description thereof will be omitted here.

When the motor 2 is driven and the piston 35 is moved forward in the cylinder 37, the air in the air chamber formed between the piston 35 and the striker 41 is compressed and the internal pressure rises. The striker 41 is pushed forward at high speed by the action of the air spring, collides with the impact bolt 43, and transmits kinetic energy to the tip tool 91. As a result, the tip tool 91 is driven linearly along the drive shaft A1 and hits the workpiece. On the other hand, when the piston 35 is moved backward, the air in the air chamber expands and the internal pressure drops, and the striker 41 is pulled backward. By repeating such movements of the motion conversion mechanism 3 and the striking mechanism 4, chipping work and cleaning work are performed.

Hereinafter, the internal structure of the handle 15 will be described. As shown in FIG. 2, a trigger 16 is provided on the front portion of the grip portion 151 of the handle 15. In the present embodiment, the trigger 16 is configured as a long lever extending in the vertical direction. Further, the trigger 16 is supported by the grip portion 151 so as to be rotatable in the front-rear direction. More specifically, the trigger 16 is rotatable between the frontmost position shown in FIG. 3 and the rearmost position shown in FIG. 4 with its lower end as a fulcrum. A protrusion 161 projects upward from the upper end of the trigger 16. In this embodiment, the two protrusions 161 are arranged so as to be separated from each other on the left and right (see FIG. 5). Each protrusion 161 is formed in a rectangular block shape and has a front surface 162 and a rear surface 163. The front surface 162 and the rear surface 163 are planes that are substantially orthogonal to the moving direction of the trigger 16 and face each other in the moving direction. The details will be described later, but the protrusion 161 is configured to be engageable with the lock member 18 (specifically, the protrusion 184) described later.

As shown in FIG. 2, a switch 17 for energizing the motor 2 (that is, for driving the tip tool 91) is housed in the grip portion 151. The trigger 16 is constantly (in a non-pressed state) urged forward by a plunger 171 protruding from the main body 170 of the switch 17, and is held at the frontmost position (position shown in FIG. 3) within the rotation range thereof. ing. At the frontmost position, the front surface 162 of the protrusion 161 is in contact with the rear end of the lower wall portion of the connecting portion 153. At this time, the switch 17 is in the off state. On the other hand, when the trigger 16 is pressed and rotated backward to a specific position (also referred to as a switching position) within the rotation range, the plunger 171 is pushed into the main body 170 and the switch 17 is turned on. When the switch 17 is turned on, the motor 2 is energized and the tip tool 91 is driven.

In the present embodiment, the rearmost position (position shown in FIG. 4) in the rotation range of the trigger 16 is set slightly behind the switching position. Therefore, the switch 17 is turned off when the trigger 16 is between the frontmost position and the above-mentioned switching position (not including the switching position) within the rotation range, and is between the switching position and the rearmost position (switching). When it is in (including the position), it is turned on. In the following, the position of the trigger 16 that puts the switch 17 in the off state (that is, the position between the frontmost position and the switching position) is referred to as an off position, and the position of the trigger 16 that puts the switch 17 in the on state (that is, the switching position). The position between the and the rearmost position) is called the on position.

As shown in FIG. 2, a lock member 18 is provided on the upper connecting portion 153 of the handle 15. The lock member 18 of the present embodiment is a member having both a function of locking the trigger 16 at the off position (also referred to as a trigger lock function) and a function of locking the trigger 16 at the on position (also referred to as a lock-on function). .. The function of locking the trigger 16 in the off position can be rephrased as the function of restricting the movement of the trigger 16 to the on position. Note that restricting movement to the on position includes not only completely prohibiting movement from the off position, but also prohibiting reaching the on position while allowing some movement from the off position. .. Similarly, the function of locking the trigger 16 in the on position can be rephrased as the function of restricting the movement of the trigger 16 to the off position. Note that restricting movement to the off position includes not only completely prohibiting movement from the on position, but also prohibiting reaching the off position while allowing some movement from the on position. ..

Hereinafter, the detailed configuration of the lock member 18 will be described. As shown in FIG. 2, in the present embodiment, the lock member 18 is formed as a rod-shaped member having a substantially elliptical cross section. The lock member 18 is supported by the connecting portion 153 on the upper side of the trigger 16 so as to be movable in the left-right direction. More specifically, as shown in FIGS. 5 and 6, through holes 154 and 155 are formed in the left wall portion and the right wall portion of the connecting portion 153, respectively. In the lock member 18, the left end portion 181 and the right end portion 182 are inserted into the through holes 154 and 155, respectively, and are slidably supported in the left-right direction. The right end portion 182 of the lock member 18 has a different configuration from the left end portion 181. Specifically, the right end portion 182 is configured as a large diameter portion having a larger diameter than the left end portion 181. Correspondingly, the through hole 155 is formed to be one size larger than the through hole 154. At least a part of the left end portion 181 and the right end portion 182 is exposed to the outside of the connecting portion 153 from the through holes 154 and 155, respectively, and functions as an operating portion that is pressed to the right and left by the user. ..

A protrusion 184 projects downward from the lower end of the lock member 18. In this embodiment, two protrusions 184 that can be engaged with each of the two protrusions 161 of the trigger 16 are provided. The two protrusions 184 are arranged apart from each other in the left-right direction, and the distance thereof is set wider than the width of each protrusion 161 of the trigger 16 in the left-right direction. On the other hand, the distance between the two protrusions 161 of the trigger 16 in the left-right direction is also set wider than the width of each protrusion 184 of the lock member 18 in the left-right direction. The width of each protrusion 184 in the left-right direction is set to be substantially equal to the width of each protrusion 161 in the left-right direction. Further, each protrusion 184 is formed in a rectangular block shape, and has a front surface 185 and a rear surface 186 as shown in FIG. The front surface 185 and the rear surface 186 are planes that are substantially orthogonal to the moving direction of the trigger 16 and face each other in the moving direction.

Further, as shown in FIGS. 5 and 6, a protruding portion protruding upward is provided at the central portion of the upper end of the lock member 18. The protrusion is provided with two recesses that are recessed downward. The two recesses are arranged side by side in the left-right direction. Hereinafter, the concave portion on the left side is referred to as a first concave portion 188, and the concave portion on the right side is referred to as a second concave portion 189. On the other hand, inside the connecting portion 153, a leaf spring 157 is arranged at a position facing the lock member 18 from above. The substantially central portion of the leaf spring 157 is a convex portion protruding downward. The leaf spring 157 snap-engages the first concave portion 188 or the second concave portion 189 via the convex portion to regulate the sliding of the lock member 18 with respect to the connecting portion 153 in the left-right direction, and the predetermined position (convex portion). Can be held at the position where it engages with the first recess 188 or the second recess 189). That is, even if the user releases the lock member 18 after moving the lock member 18, the lock member 18 does not automatically return to the original position. By pushing one of the left end portion 181 and the right end portion 182 to the right or left, the user moves the lock member 18 from a predetermined position to the right or left against the urging force of the leaf spring 157. be able to.

Hereinafter, the trigger lock function and the lock-on function of the lock member 18 will be described.

As shown in FIG. 5, when the right end portion (large diameter portion) 182 is pushed to the left and the lock member 18 is arranged at a position where the leaf spring 157 engages with the second recess 189 on the right side, the left end portion 18 is arranged. The portion 181 is in a state of protruding to the left of the connecting portion 153. At this time, the two protrusions 184 of the lock member 18 are on the left side from the movement path of the two protrusions 161 when the trigger 16 moves between the frontmost position (see FIG. 3) and the rearmost position (see FIG. 4). It is placed in a position that is off the mark. That is, the lock member 18 is arranged at a position where the protrusion 161 and the protrusion 184 do not interfere with each other in the process of moving the trigger 16 between the frontmost position and the rearmost position. Therefore, the user can move the trigger 16 rearward to the rearmost position as shown in FIG. 8 by pulling the trigger 16 arranged at the frontmost position as shown in FIG. 7. Further, when the user releases the pulling operation, the trigger 16 is urged forward by the plunger 171 and returns to the frontmost position shown in FIG. 7.

In this way, when the convex portion of the leaf spring 157 is arranged at the position where it engages with the second concave portion 189, the lock member 18 allows movement between the frontmost position and the rearmost position of the trigger 16. The trigger 16 cannot be locked in the on or off position. For this reason, the position of the lock member 18 in which the convex portion of the leaf spring 157 engages with the second concave portion 189 is also referred to as the unlocked position.

On the other hand, as shown in FIG. 6, when the left end portion 181 is pushed to the left and the lock member 18 is arranged at a position where the leaf spring 157 engages with the first recess 188 on the left side, the right end portion 182 is placed. It is in a state of protruding to the right of the connecting portion 153. At this time, the two protrusions 184 of the lock member 18 are arranged on the movement path of the two protrusions 161 of the trigger 16. That is, the lock member 18 is arranged at a position where the protrusion 161 and the protrusion 184 interfere with each other in the process of moving the trigger 16 between the frontmost position and the rearmost position.

As shown in FIG. 3, when the lock member 18 is arranged at this position when the trigger 16 is in the foremost position, the protrusion 184 is arranged slightly behind the protrusion 161 of the trigger 16. In this state, when the user pulls the trigger 16, as shown in FIG. 9, the front surface 185 (see FIG. 3) of the protrusion 184 of the lock member 18 and the rear surface 163 (see FIG. 3) of the protrusion 161 of the trigger 16 are displayed. Contact and prohibit the trigger 16 from moving further backwards. At this time, the trigger 16 is in the off position. That is, the lock member 18 locks the trigger 16 at the off position (exhibits the trigger lock function) via the engagement (contact) between the protrusion 184 and the protrusion 161. Therefore, the user cannot pull the trigger 16 unless the lock member 18 is moved to the above-mentioned unlocked position (see FIG. 5). That is, the tip tool 91 cannot be driven.

On the other hand, after the lock member 18 is arranged at the unlocked position (see FIG. 5), as shown in FIG. 4, the leaf spring 157 is first placed in a state where the trigger 16 is pulled and arranged at the rearmost position. When the lock member 18 is arranged at a position engaged with the recess 188, the protrusion 184 is arranged slightly in front of the protrusion 161. When the user releases the pulling operation of the trigger 16, the trigger 16 is urged forward by the plunger 171. However, as shown in FIG. 10, the front surface 162 (see FIG. 3) of the protrusion 161 abuts on the rear surface 186 (see FIG. 3) of the protrusion 184, and the trigger 16 is prohibited from moving further forward. At this time, the trigger 16 is in the on position. That is, the lock member 18 locks the trigger 16 at the on position (exhibits the lock-on function) via the engagement (contact) between the protrusion 184 and the protrusion 161. Therefore, even if the user releases the pulling operation of the trigger 16, the switch 17 is maintained in the on state and the driving of the tip tool 91 is continued. The user cannot return the trigger 16 to the off position and stop the drive of the tip tool 91 unless the lock member 18 is moved to the above-mentioned unlock position (see FIG. 5).

In this way, when the convex portion of the leaf spring 157 is arranged at the position where it engages with the first concave portion 188, the lock member 18 can lock the trigger 16 at the on position or the off position. For this reason, the position of the lock member 18 when the convex portion of the leaf spring 157 is arranged at the position where it engages with the first concave portion 188 is also referred to as a lock position.

As described above, the electric hammer 1 of the present embodiment includes a lock member 18 having both a lock-on function and a trigger lock function. Therefore, when the user wants to continue driving the tip tool 91 for a while, the lock member 18 locks the trigger 16 at the on position, thereby eliminating the troublesomeness of continuing the pressing operation of the trigger 16. Can be done. Further, for example, when the work is suspended for a while, the user locks the trigger 16 at the off position by the lock member 18 to prevent the tip tool 91 from being driven unintentionally. Can be done. In particular, the electric hammer 1 of the present embodiment may be carried or stored with the battery 93 as a power source attached. Therefore, by locking the trigger 16 at the off position by the lock member 18 even during transportation and storage, it is possible to prevent the tip tool from being unexpectedly driven for some reason.

Further, in the present embodiment, a leaf spring 157 configured to hold the lock member 18 at each of the lock position and the unlock position is provided. Therefore, even if the user's external operation is released after the lock member 18 is placed in the unlocked position, the lock member 18 is held in the unlocked position by the leaf spring 157 and does not automatically return to the locked position. Similarly, even if the user's external operation is released after being placed in the locked position, the lock position is not automatically restored. Then, the unlocking of the trigger 16 is realized only by moving the lock member 18 to the unlocked position regardless of the operation of the trigger 16.

Therefore, for example, when the user moves the trigger 16 locked in the off position to the on position, the complicated two-action of moving the trigger 16 to the on position while holding the lock member 18 in the unlocked position. No operation can be required. That is, once the lock member 18 is moved to the unlocked position, the user can drive the tip tool 91 with one action (only the pulling operation of the trigger 16). In the chipping work and the cleaning work, the user may perform an operation of driving the tip tool 91 by slightly shifting the machining position. In this case, the user needs to repeat the pulling operation of the trigger 16 and its release at short intervals. According to the lock member 18 of the present embodiment, since the two-action operation is not required for each pulling operation at this time, the work efficiency and convenience can be improved.

Further, since the lock member 18 is only held at the locked position or the unlocked position by using the urging force of the leaf spring 157, the user can resist the urging force of the leaf spring 157 and the lock member 18 The position of the lock member 18 can be easily switched only by moving.

Further, in the present embodiment, the trigger 16 is provided on the grip portion 151 extending in the vertical direction orthogonal to the drive shaft A1, and the lock member 18 is arranged on the upper side of the grip portion 151. That is, the lock member 18 is provided at a position relatively close to the trigger 16, although it is different from the portion where the trigger 16 is arranged. Therefore, the configuration for locking the trigger 16 can be realized with a relatively compact configuration using the engagement of the protrusions 161 and the protrusions 184.

Further, in the present embodiment, the lock member 18 moves in the moving direction of the trigger 16 between the lock position where the trigger 16 can be locked at the off position and the unlock position where the trigger 16 cannot be locked in response to an external operation by the user. It can move in the direction (horizontal direction) that intersects with (generally the front-back direction). The moving directions of the trigger 16 and the lock member 18 correspond to the respective operating directions. Therefore, the user can easily lock or unlock the trigger 16 at the off position by moving the lock member 18. Further, since the operation directions of the trigger 16 and the lock member 18 are different, it is possible to prevent the other from being erroneously operated when operating one of them.

In the present embodiment, both ends of the lock member 18 in the moving direction (left-right direction) are arranged so as to be externally operable by the user, and have different configurations from each other. Specifically, the right end portion 182, which is pressed when the trigger 16 is released, has a larger diameter than the left end portion 181 which is pressed when the trigger 16 is locked at the on position or the off position. Therefore, when moving the lock member 18 to the lock position or the unlock position, the user can easily recognize which of the right end portion 182 should be operated rather than the left end portion 181.

Further, in the present embodiment, the single lock member 18 has both a lock-on function for locking the trigger 16 at the on position and a trigger lock function for locking the trigger 16 at the off position. Therefore, these two functions can be realized with a more compact and simple configuration as compared with the case of using two separate members. Further, in the present embodiment, the lock-on function and the trigger lock function are exhibited by the protrusion 184 interfering with the protrusion 161 on the movement path of the protrusion 161 of the trigger 16 when the lock member 18 is arranged at the lock position. Will be done. Specifically, the rear surface 186 (on position side (rear side) surface) or the front surface 185 (off position side (front side) surface) of the protrusions 184 arranged so as to intersect each other in the moving direction of the trigger 16 is By abutting on the protrusion 161 the trigger 16 is locked in the on or off position. That is, the lock member 18 can exert an on-lock function or a trigger lock function at the same position (lock position) depending on whether the rear surface 186 or the front surface 185 of the protrusion 184 abuts on the protrusion 161. As described above, the lock member 18 capable of exhibiting both functions is realized in a compact, simple, and easy-to-operate configuration.

The correspondence between each component of the present embodiment and each component of the present invention is shown below. The electric hammer 1 is an example of the "striking tool" of the present invention. The drive shaft A1 is an example of the "drive shaft" of the present invention. The switch 17 is an example of the "switch" of the present invention. The trigger 16 is an example of the "operating member" of the present invention. The lock member 18 is an example of each of the "first lock member", the "second lock member", and the "single lock member" of the present invention. The grip portion 151 is an example of the "grip portion" of the present invention. The leaf spring 157 and the first and second recesses 188 and 189 are examples of the "holding mechanism" of the present invention. The protrusion 161 of the trigger 16 is an example of the "first interference portion" of the present invention. The protrusion 184 of the lock member 18 is an example of the "second interference portion" of the present invention. The rear surface 186 of the protrusion 184 is an example of the "first surface" of the present invention, and the front surface 185 is an example of the "second surface" of the present invention. The battery mounting unit 159 is an example of the "battery mounting unit" of the present invention.

The above embodiment is merely an example, and the striking tool according to the present invention is not limited to the configuration of the illustrated electric hammer 1. For example, the changes exemplified below can be made. In addition, only one or a plurality of these changes may be adopted in combination with the electric hammer 1 shown in the embodiment or the invention described in each claim.

For example, the lock-on function for locking the trigger 16 in the on position and the trigger lock function for locking in the off position may be realized not by a single lock member 18 but by a plurality of separate lock members. In this case, for example, like the lock member 18, two lock members that can move in the left-right direction between the lock position and the unlock position are provided corresponding to the on position and the off position of the trigger 16. May be good. Alternatively, the two locking members may be movable in different directions between their respective locking and unlocking positions.

In the above embodiment, the lock member 18 can lock the trigger 16 in the on position or the off position in the same lock position, and moves the trigger 16 from the on position to the off position in the same unlock position, and Allows movement from the off position to the on position. However, even when the lock-on function and the trigger lock function are realized by a single lock member 18, the lock position is different depending on whether the trigger 16 is locked in the on position or the off position. You may. Similarly, the unlock position may be different depending on whether the movement from the on position to the off position is allowed or the movement from the off position to the on position is allowed.

Hereinafter, with reference to FIGS. 11 to 15, as a specific example of such deformation, the trigger 16 has different lock positions depending on whether the trigger 16 is locked at the on position and the off position, and has a common lock. An example is a lock member 19 having a release position. In this modification, the main body housing 10, the handle 15, and the trigger 16 have substantially the same configuration, although they have slightly different shapes from those of the above embodiment. Therefore, in the following description and the drawings to be referred to, substantially the same configuration is designated by the same reference numerals to simplify or omit the description.

As shown in FIG. 11, the lock member 19 of this modification is also formed as a rod-shaped member like the lock member 18 of the above embodiment. The lock member 19 is supported by the connecting portion 153 so as to be movable in the left-right direction on the upper side of the trigger 16 with the left and right ends inserted through the through holes 154 and 155. Unlike the lock member 18, the left and right ends of the lock member 19 have the same shape.

Further, in this modification, three protrusions protrude downward from the lower end portion of the lock member 19. The protruding lengths of the three protrusions are almost the same. The three protrusions are arranged apart from each other in the left-right direction, and the distance between the two adjacent protrusions is set wider than the width of the protrusion 161 of the trigger 16 in the left-right direction. In the following description, of the three protrusions, the central protrusion is referred to as the first protrusion 193, the left protrusion is referred to as the second protrusion 194, and the right protrusion is referred to as the third protrusion 195.

As shown in FIG. 12, the first protrusion 193 to the third protrusion 195 are formed in a rectangular block shape having different sizes in the front-rear direction, and are arranged at different positions in the front-rear direction. More specifically, the first protrusion 193 has the shortest length in the anteroposterior direction among the three protrusions. The second protrusion 194 on the left side of the first protrusion 193 is arranged so that its front end is at the same position in the front-rear direction as the front end of the first protrusion 193, and extends to the rear of the first protrusion 193. The third protrusion 195 on the right side of the first protrusion 193 is arranged so that the rear end thereof is at the same position in the front-rear direction as the rear end of the first protrusion 193, and extends to the front of the first protrusion 193.

Further, as shown in FIG. 11, a protruding portion protruding upward is provided at the central portion of the upper end of the lock member 19. In this modification, the protrusion is provided with three recesses that are recessed downward. In the following, of the three recesses, the central recess is referred to as a first recess 197, the recess on the left side is referred to as a second recess 198, and the recess on the right side is referred to as a third recess 199. The first recess 197 is provided at the center of the lock member 19 in the left-right direction. Similar to the above embodiment, the leaf spring 157 is arranged inside the connecting portion 153. The leaf spring 157 snap-engages the lock member 19 to any one of the first concave portion 197 to the third concave portion 199 via the convex portion, so that the lock member 19 is placed in a predetermined position (the convex portion is the first concave portion 197 to the third concave portion). It can be held at a position where it engages with any one of 199).

Hereinafter, the trigger lock function and the lock function of the lock member 19 will be described.

In this modification, as shown in FIG. 11, the position of the lock member 19 in which the convex portion of the leaf spring 157 engages with the first concave portion 197 (that is, the position where the center of the lock member 19 and the handle 15 in the left-right direction coincide with each other). ) Is set as the unlock position. When the locking member 19 is located in the unlocked position, the two protrusions 161 of the trigger 16 are located between the first protrusion 193 and the second protrusion 194, and between the first protrusion 193 and the third protrusion, respectively, in the left-right direction. Located between 195. Therefore, movement between the frontmost position (see FIGS. 3 and 12) and the rearmost position (see FIGS. 4 and 14) of the trigger 16 is permitted. The trigger 16 is urged by the plunger 171 (see FIG. 2) and held in the foremost position (ie, the off position) unless a pulling operation is performed. Further, as shown in FIG. 12, when the trigger 16 is in the foremost position, the front ends of the first protrusion 193 and the second protrusion 194 are substantially the same positions as the rear ends of the protrusions 161 in the front-rear direction. On the other hand, the front end of the third protrusion 195 is in front of the rear end of the protrusion 161 in the front-rear direction (specifically, at substantially the same position as the front end of the protrusion 161).

In this state, when the user presses the left end portion of the lock member 19 and moves the lock member 19 to the right from the unlocked position, the convex portion of the leaf spring 157 becomes the second concave portion 198 (see FIG. 11). Snap engage. The lock member 19 is held at this position by the urging force of the leaf spring 157.

As shown in FIG. 13, at this position, among the first protrusions 193 to the third protrusions 195 of the lock member 19, the first protrusion 193 in the center and the second protrusion 194 on the left side are the two protrusions 161 of the trigger 16. It is placed on the rear side (that is, on the movement path from the frontmost position to the rearmost position). When the user pulls the trigger 16, the rear surface of the protrusion 161 of the trigger 16 comes into contact with the front surface of the first protrusion 193 and the second protrusion 194. As a result, the trigger 16 is prohibited from moving further backward and does not reach the on position. That is, the lock member 19 locks the trigger 16 at the off position (exhibits the trigger lock function) through the engagement (contact) between the first protrusion 193 and the second protrusion 194 and the two protrusions 161. .. For this reason, in the following, the position of the lock member 19 when the convex portion of the leaf spring 157 is arranged at the position where it engages with the second concave portion 198 is also referred to as an off-lock position.

On the other hand, as shown in FIG. 12, when the user presses the right end portion of the lock member 19 in the unlocked position while the trigger 16 is in the frontmost position (off position), the right side of the trigger 16 is pressed. The protrusion 161 abuts on the left surface of the third protrusion 195, and the lock member 19 is prohibited from moving further to the left. That is, when the trigger 16 is in the foremost position, the user cannot move the lock member 19 from the unlocked position to the right (that is, toward the on-lock position shown in FIG. 15).

Further, when the user pulls the trigger 16 with the lock member 19 arranged at the unlocked position, the trigger 16 can move to the rearmost position as shown in FIG. When the trigger 16 is in the rearmost position, the rear ends of the first protrusion 193 and the third protrusion 195 are substantially the same position as the front end of the protrusion 161 in the front-rear direction. On the other hand, the rear end of the second protrusion 194 is located behind the front end of the protrusion 161 in the front-rear direction (specifically, at substantially the same position as the rear end of the protrusion 161).

In this state, when the user presses the right end portion of the lock member 19 and moves the lock member 19 to the left from the unlocked position, the convex portion of the leaf spring 157 becomes the third concave portion 199 (see FIG. 11). Snap engage. The lock member 19 is held at this position by the urging force of the leaf spring 157.

As shown in FIG. 15, at this position, among the first protrusions 193 to the third protrusions 195 of the lock member 19, the first protrusion 193 in the center and the third protrusion 195 on the right side are the two protrusions 161 of the trigger 16. It is placed on the front side of the (that is, on the movement path from the rearmost position to the frontmost position). When the user releases the pulling operation of the trigger 16, the front surface of the protrusion 161 of the trigger 16 comes into contact with the rear surface of the first protrusion 193 and the third protrusion 195. As a result, the trigger 16 is urged forward by the plunger 171 but is prohibited from moving further forward and does not reach the off position. That is, the lock member 19 locks the trigger 16 at the on position (exhibits the lock-on function) through the engagement (contact) between the first protrusion 193 and the third protrusion 195 and the two protrusions 161. .. For this reason, in the following, the position of the lock member 19 when the convex portion of the leaf spring 157 is arranged at the position where it engages with the third concave portion 199 is also referred to as an on-lock position.

On the other hand, as shown in FIG. 14, when the user presses the left end portion of the lock member 19 in the unlocked position while the trigger 16 is in the rearmost position (on position), the left side of the trigger 16 is pressed. The protrusion 161 of the above abuts on the right surface of the second protrusion 194, and the lock member 19 is prohibited from moving further to the right. That is, when the trigger 16 is in the rearmost position, the user cannot move the lock member 19 from the unlocked position to the left (that is, toward the off-lock position shown in FIG. 13).

As described above, in this modification, the user can lock the trigger 16 in the on position by moving the single lock member 19 from the unlocked position to the left, and vice versa. By moving it to the right, it can be locked in the off position. That is, for the two different functions of the lock member 19 (the function of locking the trigger 16 in the on position and the function of locking in the off position), two different operation (movement) directions (left direction and left direction) with respect to the unlock position. Right direction) is set. Therefore, the lock member 19 whose operation method is easy for the user to understand is realized. In addition, for example, by attaching a mark or the like indicating the operation direction and the corresponding function to the upper surface of the lock member 19 or the connecting portion 153, the user can more easily understand the appropriate operation direction.

Further, in this modification, the trigger 16 (specifically, the protrusion 161) restricts the movement of the lock member 19 from the unlocked position to the left in the off position, and moves to the right in the on position. It is configured to regulate. More specifically, the lock member 19 is provided with a second protrusion 194 and a third protrusion 195 arranged at different positions in the front-rear direction and spaced apart from each other in the left-right direction (moving direction of the lock member 19). ing. Then, the trigger 16 (projection 161) restricts the movement of the lock member 19 to the left by abutting on the third projection 195 arranged further forward at the frontmost position (off position), and the rearmost position. At the (on position), the lock member 19 is restricted from moving to the right by abutting on the second protrusion 194 arranged further rearward. Therefore, when the trigger 16 is in the foremost position, the lock member 19 can move to the off-lock position, but cannot move to the on-lock position. Further, when the trigger 16 is in the rearmost position, the lock member 19 can move to the on-lock position but cannot move to the off-lock position. Therefore, the user can easily recognize the direction in which the lock member 19 should be moved according to the position of the trigger 16. Then, the lock member 19 can exert an appropriate function depending on the position of the trigger 16.

Further, in this modification, of the first protrusion 193 to the third protrusion 195 of the lock member 19, the first protrusion 193 and the third protrusion 195 are triggered when the lock member 19 is arranged in the on-lock position. The trigger 16 is locked in the on position by abutting on the protrusion 161 on the front side of the protrusion 161 of 16. Further, the first protrusion 193 and the second protrusion 194 lock the trigger 16 in the off position by contacting the protrusion 161 on the rear side of the protrusion 161 when the lock member 19 is arranged in the off-lock position. .. As described above, also in this modification, the lock member 19 that can lock the trigger 16 at the off position and the on position can be realized with a compact, simple, and easy-to-operate configuration.

In this modification, the lock member 19 is an example of each of the "first lock member", the "second lock member", and the "single lock member" of the present invention. The on-lock position, off-lock position, and unlock position of the lock member 19 are examples of the "predetermined position", "lock position", and "unlock position" of the present invention, respectively. The protrusion 161 of the trigger 16 is an example of the "first interference portion" of the present invention. The first protrusion 193 to the third protrusion 195 are examples of the "second interference portion" of the present invention. The first protrusion 193 and the third protrusion 195 are examples of the "on-lock portion" of the present invention. The first protrusion 193 and the second protrusion 194 are examples of the "off-lock portion" of the present invention.

Further, when the position of the trigger 16 for turning on the switch 17 has a certain width as in the range between the switching position and the rearmost position (including the switching position) of the above-described embodiment and modification, the controller 27 Can control to increase the rotation speed of the motor 2 as the pulling amount of the trigger 16 increases. In this case, it is preferable that the lock members 18 and 19 can lock the trigger 16 at the on position corresponding to the maximum rotation speed of the motor 2. Alternatively, the lock members 18 and 19 may be able to lock the trigger 16 at a plurality of on positions corresponding to a plurality of different rotation speeds (that is, different on positions in the front-rear direction). For example, the trigger 16 and the lock members 18 and 19 may be provided with a plurality of protrusions having different positions on the rear surface in the front-rear direction.

In the above embodiment, the lock-on function and the trigger lock function are realized by the engagement (contact) between the two protrusions 184 of the lock member 18 and the two protrusions 161 of the trigger 16. However, the number of protrusions 184 and 161 may be one or three or more, respectively. Further, the engagement (contact) with the trigger 16 when the lock member 18 is arranged at the lock position may be realized by a configuration other than the protrusion 184 and the protrusion 161. For example, the rod-shaped lock member can move in the left-right direction or the up-down direction between the lock position partially arranged on the movement path at the upper end of the trigger 16 and the unlock position completely off the movement path. It may be arranged in. In this case, by arranging the lock member at the position corresponding to the protrusion 184 of the above embodiment in the front-rear direction, the lock-on function and the trigger lock function can be realized with a single lock member as in the above embodiment. Can be done. Further, the lock member may be a rotary type instead of a slide type that moves linearly. Further, the lock member does not need to be arranged on the upper side (connecting portion 153) of the grip portion 151, and may be arranged in the grip portion 151, for example.

Similar changes can be made to the lock member 19. For example, the lock member 19 may be provided with only the first protrusion 193. In this case, when the lock member 19 is arranged in the on-lock position, the first protrusion 193 abuts on the protrusion 161 on the front side of the left protrusion 161 of the two protrusions 161 of the trigger 16, thereby causing the trigger 16 to come into contact with the protrusion 161. Can be locked in the on position. Further, the first protrusion 193 can lock the trigger 16 in the off position by abutting the protrusion 161 on the rear side of the protrusion 161 on the right side when the lock member 19 is arranged in the off-lock position. ..

Further, for example, the lock member 19 may be provided with only the first protrusion 193 and the second protrusion 194, and the trigger 16 may be provided with only the left protrusion 161. In this case, when the lock member 19 is arranged in the on-lock position, the first protrusion 193 can lock the trigger 16 in the on position by abutting the protrusion 161 on the front side of the protrusion 161. Further, the second protrusion 194 can lock the trigger 16 in the off position by contacting the protrusion 161 on the rear side of the protrusion 161 when the lock member 19 is arranged in the off-lock position. In this case, the rear end position of the second protrusion 194 may be changed to the same position as the first protrusion 193, and the front end position of the first protrusion 193 is in front of the front end position of the second protrusion 194. That is, the trigger 16 may be changed to the front of the rear end position of the protrusion 161 when the trigger 16 is arranged at the off position.

Further, the lock member 19 is provided with two protrusions having the same shape and arranged at the same position in the front-rear direction, and the trigger 16 is provided with three protrusions provided at different positions in the front-rear direction. May be. That is, the protrusions provided on the lock member 19 and the trigger 16 may be replaced. Also in this case, as described above, the number, arrangement, size, etc. of the protrusions can be changed as appropriate.

The configuration for holding the lock member 18 at each of the lock position and the unlock position is not limited to the leaf spring 157 and the first and second recesses 188 and 189, and may be appropriately changed. For example, the leaf spring 157 may be provided in the lock member 18, and the first and second recesses 188 and 189 may be provided in the connecting portion 153. Further, for example, a flexible locking piece may be provided on one of the locking member 18 and the connecting portion 153, and a groove into which the locking piece can be engaged may be provided on the other. Similar changes can be made to the configuration for holding the lock member 19 at each of the on-lock position, the off-lock position, and the unlock position.

Further, for example, the power source of the electric hammer 1 may be an external AC power source instead of the removable battery 93. The configurations of the motor 2, the motion conversion mechanism 3, and the striking mechanism 4 can also be changed as appropriate. For example, as the motor 2, an AC motor having a brush may be adopted. As the motion conversion mechanism 3, a well-known motion conversion mechanism using a swing member may be adopted instead of the crank mechanism.

Further, in view of the gist of the present invention and the above-described embodiment, the following aspects are constructed. The following embodiments may be adopted in combination with the electric hammer 1 shown in the embodiment, the above-mentioned modification, or the invention described in each claim.
[Aspect 1]
The second lock member has a lock position in which the operation member can be locked at the off position by partially interfering with the operation member on the movement path of the operation member in response to an external operation by the user. The operating member may be movable to and from an unlocked position completely off the movement path.
[Aspect 2]
The lock member moves between a lock position in which the operation member can be locked in the on position and the off position and a movement between the off position and the on position of the operation member in response to an external operation by the user. It may be movable to and from an acceptable unlock position.
[Aspect 3]
In aspect 2,
When the lock member is arranged at the lock position, it can partially interfere with the operation member on the movement path of the operation member, while when it is arranged at the unlock position, the operation member said. It may be placed at a position completely off the movement path.
[Aspect 4]
The operating member is provided on the front portion of the grip portion so as to be movable in the front-rear direction.
The second lock member or the lock member may be movably arranged in the left-right direction orthogonal to the front-rear direction and the up-down direction.
[Aspect 5]
The first interference portion is configured as a protrusion protruding toward the lock member.
The second interference portion may be configured as a protrusion protruding toward the operating member.
[Aspect 6]
The holding mechanism may be configured to hold the second locking member at each of the locking position and the unlocking position by snap engagement.
[Aspect 7]
The holding mechanism may be configured to release the holding of the second lock member in response to an external operation of the lock member regardless of the external operation of the trigger.
[Aspect 8]
The lock member may be movable in a direction orthogonal to the drive axis, and may be in a direction opposite to the first direction and the second direction.
[Aspect 9]
The holding mechanism may be configured to hold the locking member at each of the predetermined position, the locking position, and the unlocking position.
[Aspect 10]
The operating member
In the off position, only the movement of the lock member from the unlock position to the two directions is allowed, and
At the on position, the lock member may be configured to allow only movement from the unlocked position to the first direction.
[Aspect 11]
The operating member is provided on the front portion of the grip portion so as to be movable in the front-rear direction.
The lock member is arranged so as to be movable in a direction intersecting the front-rear direction.
The lock member has two contact portions arranged at different positions in the front-rear direction and separated from each other in the moving direction of the lock member.
The operating member
At the off position, the lock member is restricted from moving in the first direction by contacting the first contact portion arranged in front of the two contact portions, and the lock member is restricted from moving in the first direction.
At the on position, the lock member is configured to restrict the movement of the lock member in the second direction by abutting on the second contact portion arranged more rearward of the two contact portions. May be good.
The third protrusion 195 and the second protrusion 194 of the above-mentioned modification are examples of the "first contact portion" and the "second contact portion" in this embodiment, respectively.
[Aspect 12]
In aspect 11,
The operating member may have a receiving portion capable of contacting the first contact portion and the second contact portion.
[Aspect 13]
In aspect 12,
The receiving portion may include at least one protrusion protruding toward the lock member.
The protrusion 161 of the above modification is an example of the "reception portion" and the "protrusion" in aspects 11 and 12.
[Aspect 14]
In aspect 12 or 13.
The first contact portion is configured to lock the operation member in the on position by contacting the front surface of the receiving portion when the lock member is arranged at the predetermined position.
The second contact portion may be configured to lock the operation member at the off position by contacting the rear surface of the receiving portion when the lock member is arranged at the lock position. ..
[Aspect 15]
In any one of aspects 11-14,
Each of the first contact portion and the second contact portion may be a protrusion protruding toward the operation member.
[Aspect 16]
The first interference portion may include at least one protrusion protruding toward the operating member.
[Aspect 17]
The second interferometer may include at least one protrusion that projects toward the lock member.

1: Electric hammer 10: Main body housing 11: Drive mechanism accommodating part 13: Motor accommodating part 15: Handle 151: Gripping part 153: Connecting part 154: Through hole 155: Through hole 156: Connecting part 157: Leaf spring 159: Battery mounting Part 16: Trigger 161 1: Protrusion 162: Front 163: Rear surface 17: Switch 170: Main body 171: Plunger 18: Lock member 181: Left end 182: Right end 184: Projection 185: Front 186: Rear surface 188: First recess 189 : Second recess 19: Lock member 193: First protrusion 194: Second protrusion 195: Third protrusion 197: First recess 198: Second recess 199: Third recess 2: Motor 21: Rotor 23: Motor shaft 27: Controller 3: Motion conversion mechanism 31: Crankshaft 33: Connecting rod 35: Piston 37: Cylinder 39: Tool holder 4: Strike mechanism 41: Striker 43: Impact bolt 91: Tip tool 93: Battery A1: Drive shaft

Claims (12)

It is a striking tool configured to only drive the tip tool linearly along a drive shaft extending in the front-rear direction.
The switch for driving the tip tool and
An operating member configured to be movable between an off position in which the switch is turned off and an on position in which the switch is turned on.
A first lock member configured to lock the operation member at the on position,
A second lock member that can move the operation member between a lock position that can lock the operation member in the off position and an unlockable position that cannot be locked according to an external operation by the user.
The second lock member is provided with a holding mechanism configured to hold the second lock member at each of the lock position and the unlock position .
The holding mechanism includes an urging member, and is characterized in that the second locking member is configured to hold the second locking member at each of the locking position and the unlocking position by using the urging force of the urging member. A striking tool. It is a striking tool configured to only drive the tip tool linearly along a drive shaft extending in the front-rear direction.
The switch for driving the tip tool and
An operating member configured to be movable between an off position in which the switch is turned off and an on position in which the switch is turned on.
A first lock member configured to lock the operation member at the on position,
A second lock member that can move the operation member between a lock position that can lock the operation member in the off position and an unlockable position that cannot be locked according to an external operation by the user.
The second lock member is provided with a holding mechanism configured to hold the second lock member at each of the lock position and the unlock position.
A striking tool characterized in that both ends of the second lock member in a moving direction are arranged so as to be externally operable by a user and have different configurations from each other. It is a striking tool configured to only drive the tip tool linearly along a drive shaft extending in the front-rear direction.
The switch for driving the tip tool and
An operating member configured to be movable between an off position in which the switch is turned off and an on position in which the switch is turned on.
A first lock member configured to lock the operation member at the on position,
A second lock member that can move the operation member between a lock position that can lock the operation member in the off position and an unlockable position that cannot be locked according to an external operation by the user.
The second lock member is provided with a holding mechanism configured to hold the second lock member at each of the lock position and the unlock position.
A striking tool characterized by further being equipped with a battery mounting part that is configured so that a rechargeable battery can be attached and detached. It is a striking tool configured to only drive the tip tool linearly along a drive shaft extending in the front-rear direction.
The switch for driving the tip tool and
An operating member configured to be movable between an off position in which the switch is turned off and an on position in which the switch is turned on.
A first lock member configured to lock the operation member at the on position,
A second lock member that can move the operation member between a lock position that can lock the operation member in the off position and an unlockable position that cannot be locked according to an external operation by the user.
The second lock member is provided with a holding mechanism configured to hold the second lock member at each of the lock position and the unlock position.
A striking tool characterized in that the first lock member and the second lock member are also used by a single lock member. The striking tool according to any one of claims 1 to 3 .
A striking tool characterized in that the first lock member and the second lock member are also used by a single lock member. The striking tool according to claim 4 or 5.
The locking member is a striking tool capable of locking the operating member in the on position or the off position at the lock position. The striking tool according to claim 6 .
The operating member and the locking member, respectively, have a first interference portion and a second interference portion, respectively.
When the second interference portion is arranged on the movement path of the first interference portion, the lock member causes the second interference portion to interfere with the first interference portion, so that the operation member is placed in the on position. Or it is configured to lock in the off position.
The outer surface of the second interference portion includes two surfaces arranged so as to intersect each other in the moving direction of the operating member.
Of the two surfaces, the first surface arranged on the on position side in the moving direction abuts on the first interference portion to lock the operating member at the on position.
A striking tool characterized in that, of the two surfaces, a second surface arranged on the off position side in the moving direction abuts on the first interference portion to lock the operating member at the off position. The striking tool according to claim 4 or 5 .
The lock member can move from the unlocked position in a first direction and a second direction different from the first direction.
The lock member is
When the operation member is moved from the unlocked position to a predetermined position in the first direction, the operation member is locked at the on position as the first lock member, and the operation member is locked at the on position.
A striking tool characterized in that when it is moved from the unlocked position to the locked position in the second direction, the operating member is locked at the off position as the second lock member. The striking tool according to claim 8.
The operating member
In the off position, the movement of the lock member from the unlocked position to the first direction is restricted, and
A striking tool characterized in that it is configured to restrict the movement of the lock member from the unlocked position to the second direction at the on position. The striking tool according to claim 8 or 9.
The operating member and the locking member, respectively, have a first interference portion and a second interference portion, respectively.
The second interference part is
When the lock member is arranged at the predetermined position, the operating member is configured to be locked at the on position by contacting the first interference portion on the off position side of the first interference portion. On-lock part and
When the lock member is arranged at the lock position, the operating member is configured to be locked at the off position by contacting the first interference portion on the on position side of the first interference portion. A striking tool characterized by including an off-lock portion. The striking tool according to any one of claims 1 to 10 .
Further, a grip portion extending in the vertical direction orthogonal to the drive axis is further provided.
The operating member is provided on the grip portion, and the operating member is provided on the grip portion.
The second lock member is a striking tool characterized in that it is arranged on the upper side of the grip portion. The striking tool according to any one of claims 1 to 11 .
The second locking member is a striking tool that can move between the locked position and the unlocked position in a direction intersecting the moving direction of the operating member.

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