JP2016203268A - Work tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work tool which secures a degree of freedom in design.SOLUTION: A work tool 100 for carrying out predetermined driving work includes: a first movement mechanism 113 for moving a driver 120 from a driver standard position 121a to a driver driving position according to output of a drive motor; and a second movement mechanism 130 for moving the driver 120 from the driver driving position to the driver standard position 121a. The second movement mechanism 130 has a fixed part 131, a movable part 132, and a movable part moving member 140. Furthermore, a body part accommodates a flexible member 160 for connecting the movable part 132 to the driver 120.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a work tool that performs a predetermined driving operation by moving a driving material linearly.

U.S. Patent Application Publication No. 2009/0250500 discloses a work tool that performs a predetermined driving operation by moving a driving material linearly. The work tool performs a driving operation by moving the driver in a straight line by a rotationally driven flywheel. In addition, the work tool is configured such that, when the driving operation is completed, a continuous driving operation can be performed by the spring returning the driver to a predetermined position.
However, since the work tool has a configuration in which the spring and the driver are integrated via the connecting member, it is difficult to change the arrangement structure of the driver and the spring. Therefore, further improvement has been desired as a configuration capable of ensuring the design freedom of the work tool.

US Patent Application Publication No. 2009/0250500

  The present invention has been made in view of such a point, and an object thereof is to provide a work tool capable of ensuring a degree of freedom in design.

In order to solve the above problems, a work tool according to the present invention is a work tool that performs a predetermined driving work by moving a driving material linearly, and includes a drive motor, a driver, a first moving mechanism, It has a main-body part which accommodates a 2nd moving mechanism. The driving material typically includes nails and staples.
The driver is configured to be able to reciprocate between a driver reference position and a driver driving position that is separated from the driver reference position. Further, the driver moves the driving material linearly along the driver moving axis by moving from the driver reference position to the driver driving position. The driver is preferably made of metal and has a long shape extending in the moving direction of the driver.
The first moving mechanism is configured to move the driver from the driver reference position to the driver driving position by the output of the drive motor. The second moving mechanism is configured to move the driver from the driver driving position to the driver reference position. That is, when the first moving mechanism drives the driver to the driver driving position, the driving material is driven into the object. Then, the second moving mechanism moves the driver that has been driven to the driver driving position after finishing the driving operation to the driver reference position. The first driving mechanism and the second moving mechanism reciprocate the driver, thereby enabling a continuous driving operation.

The second moving mechanism includes a fixed part fixed to the main body part, a movable part configured to be movable with respect to the fixed part, and a movable part moving member that moves the movable part. The movable part moving member constitutes a drive source for the second moving mechanism, and typically a coil spring is used. As the movable part moving member, a spring or an air spring using the elastic force of compressed air can be used.
The main body further houses a flexible member that connects the movable part to the driver. The flexible member can be arranged in a bent state as will be described later, and is reciprocated together with the movable portion and the driver. Therefore, it is necessary to satisfy moderate flexibility, friction strength, and tensile strength, and a metal wire is typically used.
The movable part is configured to be able to reciprocate between a movable part reference position and a movable part moving position that is separated from the movable part reference position. The reciprocating motion of the movable part defines the movable part moving axis.

When the driver is moved from the driver reference position to the driver driving position by the first moving mechanism, the movable portion is moved from the movable portion reference position to the movable portion moving position via the flexible member. In this sense, it can be said that the first moving mechanism is configured to move the driver from the driver reference position to the driver driving position and to move the movable portion from the movable portion reference position to the movable portion moving position.
When the movable part is moved from the movable part moving position to the movable part reference position by the movable part moving member, the driver is moved from the driver driving position to the driver reference position via the flexible member. In this sense, the movable part moving member in the second moving mechanism is configured to move the movable part from the movable part moving position to the movable part reference position and to move the driver from the driver moving position to the driver reference position. be able to. Further, it can be said that the movable part moving member is configured to return the driver and the movable part from the respective movement positions to the reference position when the driver finishes the driving operation.
Further, it can be said that the flexible member is a pulling member that pulls the driver and the movable portion.
In the work tool according to the present invention, since the movable portion and the driver are connected by the flexible member, the arrangement position of the second moving mechanism with respect to the driver can be set to a desired configuration. That is, for example, in order to obtain a configuration suitable for a request related to the design of the work tool main body, such as the size and shape of the work tool, and a request such as the driving performance of the driver itself, the driver movement axis and the movable part movement axis intersect. It is possible to obtain an arrangement form such as a state or a state in which the driver movement axis and the movable part movement axis are parallel to each other.
Therefore, in the work tool according to the present invention, it is possible to ensure a degree of design freedom.

Moreover, as an aspect of the solving means in the work tool according to the present invention, the flexible member can be connected to a predetermined area of the driver on the driver moving shaft passing through the center of gravity of the driver.
More specifically, a recess can be provided in a region on the driver movement axis that passes through the center of gravity of the driver, and one end of the flexible member can be connected to a pin portion disposed in the recess. Moreover, while providing a convex part in the area | region of the said driver, the end of a flexible member can be connected to the said convex part.
According to the work tool according to this aspect, the flexible member can pull the driver along the driver movement axis that passes through the center of gravity of the driver. Therefore, it is possible to stabilize the operation in which the driver moves the movable portion via the flexible member and the operation in which the movable portion moves the driver via the flexible member. Moreover, it becomes possible to make a 2nd moving mechanism into a single structure by the said structure.
Furthermore, although the driver is configured to slide on the driver guide, it is possible to suppress the behavior of tilting with respect to the driver guide when the driver moves. In this sense, the configuration in which the flexible member is connected to a predetermined area of the driver on the driver moving axis that passes through the center of gravity of the driver can constitute a driver tilt movement suppressing mechanism. By configuring the tilt movement suppression mechanism, it is possible to reduce the need to provide a mechanism for compensating for the tilt movement of the driver in the driver guide.
At this time, the flexible member can be connected to a predetermined region of the driver on the driver moving axis that passes through a region near the center of gravity of the driver. In this case, even in the “region near the center of gravity of the driver”, if the flexible member can move without tilting the driver, the flexible member is on the driver movement axis passing through the center of gravity of the driver. It can be considered that it is connected to a predetermined area of the driver.

Further, as one aspect of the solving means in the work tool according to the present invention, the driver includes a front end portion that collides with the driving material when the driver is placed at the driver driving position, and a rear end portion opposite to the front end portion. Can have. In this case, the flexible member is connected to a region between the front end portion and the rear end portion, and the rear end portion can form a non-connection region of the flexible member. In addition, that a rear end part forms the non-connecting area | region of a flexible member means not providing the special structure like the convex part for connecting a flexible member to a rear end part.
According to the work tool according to this aspect, since the flexible member is connected to the region between the eye end portion and the rear end portion of the driver, the extension length of the driver can be optimized. .

Moreover, as one aspect of the solving means in the work tool according to the present invention, the main body portion can further accommodate a direction changing element configured to bend the flexible member. A specific example of the direction changing element is a pulley.
According to the work tool according to this aspect, the flexible member bent by the direction changing element connects the driver and the movable portion. Accordingly, the driver and the second moving mechanism can be accommodated in the main body in an arrangement form that intersects when the driver movement axis and the movable part movement axis are overlapped. More specifically, for example, the second moving mechanism can be accommodated in the grip portion of the work tool.
In addition, the driver and the second moving mechanism can be accommodated in the main body in an arrangement in which the driver moving shaft and the movable portion moving shaft are arranged in parallel. In this case, the driver movement axis and the movable part movement axis can be arranged in parallel.

  Moreover, as an aspect of the solving means in the working tool according to the present invention, the movable part moving member can be constituted by at least one spring element. As the spring element, a coil spring preferably formed by winding a wire can be used. Further, any number of spring elements can be selected according to the configuration of the work tool to be designed. In this case, it is possible to configure a plurality of second moving mechanisms according to the number of spring elements. Furthermore, it is possible to provide a plurality of spring elements for a single second moving mechanism.

Moreover, as an aspect of the solving means in the work tool according to the present invention, the spring element can be constituted by a compression coil spring. In this case, one end portion of the compression coil spring can be disposed in the fixed portion, and the other end portion of the compression coil spring can be disposed in the movable portion. In this case, the flexible member can pass through the fixed portion and pass through the inner diameter portion of the compression coil spring to be connected to the movable portion.
According to the work tool concerning this mode, when the movable part is in the movable part moving position, the compression coil spring is in a compressed state. Then, the movable portion is moved to the movable portion reference position by the return operation of the compression coil spring, and the driver is further moved to the driver reference position via the flexible member. Further, since the flexible member is arranged on the inner diameter of the compression coil spring, it is possible to make the second moving mechanism compact, and to suppress the phenomenon of spring collapse that occurs when the compression coil spring is compressed. It becomes possible.

Further, as one aspect of the solving means in the work tool according to the present invention, the spring element can be constituted by a tension coil spring. In this case, one end portion of the tension coil spring can be disposed in the fixed portion, and the other end portion of the tension coil spring can be disposed in the movable portion.
According to the work tool which concerns on this aspect, when a movable part exists in a movable part movement position, it will be in the state by which the tension coil spring was extended. Then, the movable portion is moved to the movable portion reference position by the return operation of the tension coil spring, and the driver is further moved to the driver reference position via the flexible member.

Moreover, as an aspect of the solving means in the work tool according to the present invention, the second moving mechanism has a guide portion that guides the expansion and contraction operation of the spring element. In this case, the guide portion can extend linearly or in a curved shape.
According to the work tool which concerns on this aspect, it becomes possible to make a 2nd moving mechanism into a desired shape with a guide part. For example, when the second moving mechanism is disposed in the grip portion, it is possible to form a second moving mechanism adapted to the overall shape of the grip portion and the arrangement form of the switch portion disposed in the grip portion. The guide portion can be formed by a predetermined region of the main body portion or can be formed by a predetermined cylindrical member.

Moreover, as an aspect of the solving means in the work tool according to the present invention, a flexible protective member is provided on the outer periphery of the spring element. In this case, when the spring element is compressed, the protection member can have a region that is sandwiched between the wire members constituting the coil spring. The protective member can be constituted by a flexible film body, and more specifically, a rubber tube, a nonwoven fabric, or the like can be used. Furthermore, the protective member is preferably arranged so as to cover the entire outer periphery of the spring element.
According to the work tool which concerns on this aspect, especially when a movable part moving member is a spring element, damage to a coil spring can be suppressed. That is, for example, when the movable part moving member is a compression coil spring, the compression coil spring is compressed and the diameter increases as the movable part moves from the movable part reference position to the movable part moving position. As a result, the outer periphery of the compression coil spring comes into contact with the protective member. When the compression coil spring is further compressed, a part of the protective member is bent and sandwiched between the wire members of the compression coil spring. With this configuration, it is possible to suppress a phenomenon in which the wire rods of the compression coil spring collide with each other and a surging phenomenon in which the compression coil spring vibrates at a specific frequency.

Moreover, as an aspect of the solving means in the work tool according to the present invention, the spring element can be configured by connecting a plurality of tension coil springs in series.
According to the work tool according to this aspect, the movable part moving member can be configured by continuously connecting a plurality of tension coil springs having a predetermined configuration. Therefore, it is possible to share parts in work tools having different configurations.

Moreover, as one aspect of the solving means in the work tool according to the present invention, the first moving mechanism includes a flywheel rotating mechanism that rotates the flywheel by a drive motor, and selectively transmits the rotating operation of the flywheel to the driver. And a driver operating mechanism for moving the driver from the driver reference position to the driver driving position.
The flywheel rotation mechanism is configured to transmit the rotational drive of the drive motor to the flywheel when a contact arm provided on the work tool is brought into contact with the driving target. The driver operating mechanism is configured to transmit the rotational force of the flywheel to the driver by pressing the pressing roller against the driver when the user operates the trigger and holding the driver between the pressing roller and the flywheel.
According to the work tool according to the present aspect, the driver can be moved from the driver reference position to the driver driving position by the flywheel rotation mechanism and the driver operation mechanism.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the work tool which can ensure the freedom degree of design.

It is explanatory drawing which shows the whole structure of the nailing machine which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows the 1st moving mechanism and 2nd moving mechanism which concern on 1st Embodiment. It is the II sectional view taken on the line which concerns on FIG. It is the IV-IV sectional view taken on the line which concerns on FIG. It is the II-II sectional view taken on the line which concerns on FIG. It is the III-III sectional view taken on the line which concerns on FIG. It is explanatory drawing which shows operation | movement of the nailing machine which concerns on 1st Embodiment. It is explanatory drawing which shows operation | movement of a protection member. It is explanatory drawing which shows operation | movement of a protection member. It is explanatory drawing which shows the outline | summary of the nailing machine which concerns on 2nd Embodiment. It is explanatory drawing which shows the connection structure of the driver and flexible member which concern on 2nd Embodiment. It is explanatory drawing which shows operation | movement of the nailing machine which concerns on 2nd Embodiment. It is explanatory drawing which shows the outline | summary of the nailing machine which concerns on 3rd Embodiment. It is explanatory drawing which shows the outline | summary of the nailing machine which concerns on 4th Embodiment. It is explanatory drawing which shows the outline | summary of the nailing machine which concerns on 5th Embodiment. It is explanatory drawing which shows operation | movement of the nailing machine which concerns on 5th Embodiment. It is explanatory drawing which shows the outline | summary of the nailing machine which concerns on 6th Embodiment. It is explanatory drawing which shows the outline | summary of the nailing machine which concerns on 7th Embodiment. It is explanatory drawing which shows the outline | summary of the nailing machine which concerns on 8th Embodiment.

(Embodiment of working tool)
Hereinafter, 1st Embodiment-8th Embodiment of the working tool which concerns on this invention is described based on FIGS. 1-19. In addition, about the components which show the same function in each embodiment, the same code | symbol is used and the description is abbreviate | omitted.
1st Embodiment-8th Embodiment is demonstrated based on the structure of the nailing machine which is typical embodiment of the working tool which concerns on this invention.

(First embodiment)
A working tool according to a first embodiment of the present invention will be described with reference to FIGS. First, the overall configuration of the nailing machine 100 will be described with reference to FIG.

(Overview of the whole nailing machine)
The nail driving machine 100 shown in FIG. 1 moves the nail 180 in a straight line and performs a driving operation of the nail 180. The nailing machine 100 is an example of the “work tool” according to the present invention, and the nail 180 is an example of the “driving material” according to the present invention. The driver 120 is configured to be able to reciprocate along a driver movement axis 121 that is a straight line defined between a driver reference position 121a (see FIG. 2) and a driver movement position 121b (see FIG. 7). In the initial state of the nailing machine 100, the driver 120 is placed at the driver reference position 121a. This state can be said to be a standby state of the nailing machine 100. When the driver 120 moves from the driver reference position 121a to the driver driving position 121b, the driver 120 collides with the nail 180 and the nail 180 is driven into the driving target. This state can be said to be a driving state of the nail driver 100. Then, the driver 120 placed at the driver driving position 121b is returned to the driver reference position 121a, and the nailing machine 100 is again set in the standby state. By repeating the cycle, the nail driver 100 can perform a continuous driving operation of the nail 180. The driver 120 is an example of the “driver” according to the present invention, the driver reference position 121a is an example of the “driver reference position” according to the present invention, and the driver driving position 121b is the “driver driving position” according to the present invention. It is an example, and the driver movement axis 121 is an example of the “driver movement axis” according to the present invention.
The driver 120 is configured to slide on the driver guide 111.
Further, a magazine 105 that accommodates a plurality of nails 180 is detachable from the nailing machine 100. The magazine 105 has a mechanism for transferring the nail 180 to the driver 120 side.

  As shown in FIG. 1, the nailing machine 100 has a main body 101. The main body 101 is an example of the “main body” according to the present invention. The main body 101 has the mounting hole 111a and the magazine 105 mounting portion described above, and houses the driver 120, the first moving mechanism 113, the second moving mechanism 130, and the drive motor. The first moving mechanism 113 is an example of the “first moving mechanism” according to the present invention, and the second moving mechanism 130 is an example of the “second moving mechanism” according to the present invention.

The main body 101 has a grip 103 that is held by a user. The grip part 103 extends in a direction away from the driver 120. In the nailing machine 100, a direction parallel to the driver moving shaft 121 is defined as a longitudinal direction 100a. In the longitudinal direction 100a, the side into which the nail 180 is driven is defined as the front side, and the side facing the front side is defined as the rear side.
Further, in the nailing machine 100, the direction perpendicular to the longitudinal direction 100a and having the extending direction component of the grip portion 103 is defined as the height direction 100b. In the height direction 100b, the side on which the grip portion 103 extends is defined as the lower side, and the side facing the lower side is defined as the upper side. In the direction intersecting with the driver movement axis 121, a direction parallel to the height direction 100b is defined as a driver movement intersection direction 122.
Further, in the nailing machine 100, when the nailing machine 100 is faced from the front side or the rear side, a direction orthogonal to both the longitudinal direction 100a and the height direction 100b is defined as a width direction 100c (see FIG. 3). Further, when the nailing machine 100 is viewed from the rear side, the left side in the width direction 100c is defined as one side in the width direction of the nailing machine 100, and the side facing the one side in the width direction is defined as the other side in the width direction. To do.

(Configuration of the first moving mechanism)
As shown in FIG. 1, the first moving mechanism 113 is configured to move the driver 120 from the driver reference position 121a to the driver driving position 121b by the output of the drive motor. More specifically, the first moving mechanism 113 includes a flywheel rotating mechanism 114 that rotationally drives the flywheel 115 by a drive motor, and a driver operation mechanism 116 that selectively transmits the rotating operation of the flywheel 115 to the driver 120. Have. The flywheel 115 is an example of a “flywheel” according to the present invention, the flywheel rotation mechanism 114 is an example of a “flywheel rotation mechanism” according to the present invention, and the driver operation mechanism 116 is a “driver” according to the present invention. It is an example of an “operation mechanism”.
The flywheel rotating mechanism 114 is configured to transmit the rotational drive of the drive motor to the flywheel 115 when the contact arm 112 protruding to the front side of the main body 101 in the vicinity of the driving hole 111a contacts the driving target. The The driver operation mechanism 116 also presses the pressing roller 116a against the driver 120 when the user operates the trigger 103a provided on the grip portion 103, and holds the driver 120 between the pressing roller 116a and the flywheel 115. It is configured to transmit the rotational force of the flywheel 115 to the driver 120. In the lower region of the grip portion 103, a battery mounting portion is formed for making the battery 190, which is a power source for driving the flywheel rotating mechanism 114 and the driver operating mechanism 116, detachable.

(Configuration of second moving mechanism)
Next, the structure of the 2nd moving mechanism 130 is demonstrated based on FIG. FIG. 2 is an explanatory view of the second moving mechanism 130 as viewed from above. FIG. 2 shows a state where the driver 120 is placed at the driver reference position 121a.
As shown in FIG. 2, the second moving mechanism 130 is configured to move the driver 120 from the driver driving position 121b to the driver reference position 121a. The second moving mechanism 130 includes a fixed part 131 fixed to the main body part 101, a movable part 132 configured to be movable with respect to the fixed part 131, and a movable part moving member 140. The fixed portion 131 is an example of the “fixed portion” according to the present invention, the movable portion 132 is an example of the “movable portion” according to the present invention, and the movable portion moving member 140 is the “movable portion moving member” according to the present invention. Is an example.
The movable part 132 is configured to be able to reciprocate between a movable part reference position 133a and a movable part moving position 133b (see FIG. 7). The reciprocating movement of the movable part 132 defines the movable part moving shaft 133. The movable portion reference position 133a is an example of the “movable portion reference position” according to the present invention, and the movable portion moving position 133b is an example of the “movable portion moving position” according to the present invention. The movable part 132 is connected to the driver 120 via the flexible member 160.
As shown in FIG. 2, when the driver 120 is placed at the driver reference position 121a, the movable part 132 is placed at the movable part reference position 133a. On the other hand, as shown in FIG. 7, when the driver 120 is placed at the driver driving position 121b, the movable portion 132 is placed at the movable portion moving position 133b.
The movable part 132 is configured to be slidable with respect to the guide part 151 provided in the main body part 101. The guide portion 151 is an example of the “guide portion” according to the present invention.
In the nailing machine 100 according to the first embodiment, the driver 120 and the second moving mechanism 130 are arranged so that the driver moving shaft 121 and the movable portion moving shaft 133 are parallel to each other.

As shown in FIG. 2, the movable part moving member 140 includes a spring element 141. The spring element 141 according to the first embodiment is configured by a compression coil spring 142. One end portion of the compression coil spring 142 constitutes a fixed end portion 142 a disposed on the fixed portion 131, and the other end portion constitutes a movable end portion 142 b disposed on the movable portion 132. The spring element 141 is an example of the “spring element” according to the present invention, the compression coil spring 142 is an example of the “compression coil spring” according to the present invention, and the fixed end 142a is the “one end of the compression coil spring” according to the present invention. The movable end 142b is an example of the “other end of the compression coil spring” according to the present invention.
A flexible protective member 150 is provided on the outer periphery of the compression coil spring 142. The protection member 150 is formed of a rubber tube and is disposed so as to cover the entire outer periphery of the compression coil spring 142. The operation of the protection member 150 will be described later. This protective member 150 is an example of the “protective member” according to the present invention.

  As shown in FIG. 2, the flexible member 160 is composed of a non-stretchable linear member typified by a wire, and a driver side region 160 a connected to the driver 120 and a movable part side connected to the movable part 132. A region 160b is included. Note that the flexible member 160 is bent by contacting the pulley 170. With this configuration, it is possible to configure the driver 120 and the second moving mechanism 130 so that the driver moving shaft 121 and the movable portion moving shaft 133 are in an arbitrary arrangement form. In the nailing machine 100 according to the first embodiment, the pulley 170 includes a first pulley 171 and a second pulley 172. The flexible member 160 is an example of the “flexible member” according to the present invention, and the pulley 170 is an example of the “direction changing element” according to the present invention.

  In addition, as shown in FIG. 2, the straight line which continues the rotating shaft 171a of the 1st pulley 171 and the rotating shaft 172a of the 2nd pulley 172 is parallel to the width direction 100c. Further, as shown in FIG. 3, the rotation shaft 171a of the first pulley 171 and the rotation shaft 172a of the second pulley 172 are parallel to each other. Furthermore, a straight line that continues the groove 171b of the first pulley 171 and the groove 172b of the second pulley 172 for supporting the flexible member 160 is parallel to the width direction 100c. With this configuration, a straight line connecting the driver moving shaft 121 and the movable portion moving shaft 133 in a state facing from the front side (rear side) is parallel to the width direction 100c. The pulley 170 arranges the driver moving shaft 121 and the movable portion moving shaft 133 on the same plane defined by the longitudinal direction 100a and the width direction 100c, thereby moving the movable portion 132 as well as the moving operation of the driver 120. It is possible to stabilize the operation.

  As shown in FIG. 2, the flexible member 160 is disposed through the hole 131a provided in the fixed part 131, the inner diameter of the compression coil spring 142, and the hole 132a provided in the movable part 132, and the movable part side region 160b is movable. Connected to the unit 132. In this sense, it can be said that the flexible member 160 passes through the inner diameter of the compression coil spring 142 and is connected to the movable portion 132. By disposing the flexible member 160 on the inner diameter of the compression coil spring 142, the second moving mechanism 130 can have a compact configuration, and thus the size of the nailing machine 100 can be suppressed. In addition, as shown in FIG. 8, the movable part 132 has the bottom face part 132b which has the hole part 132a, and the side wall part 132c. The movable portion side region 160b protruding from the hole 132a is caulked by the fixed member 132d. The movable end 142b of the compression coil spring 142 is in contact with the bottom surface 132b.

  Further, as shown in FIG. 2, the annular portion 161 formed in the driver side region 160 a of the flexible member 160 is connected to the driver 120. At this time, the first pulley 171 is disposed so that the area of the flexible member 160 extending from the annular portion 161 to the first pulley 171 overlaps the driver moving shaft 121. With this configuration, the moving operation of the driver 120 and the movable portion 132 can be stably performed.

Details of the connection structure between the flexible member 160 and the driver 120 will be described with reference to FIGS. 4 is a sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is a sectional view taken along line II in FIG. As shown in FIG. 4, the rear end region of the driver 120 has a recess 120b, a pin insertion hole 120c, and a pin 120a inserted into the pin insertion hole 120c. The annular portion 161 of the flexible member 160 is disposed in the concave portion 120 b, and the pin 120 a is inserted through the central opening of the annular portion 161. With this configuration, the driver-side region 160a of the flexible member 160 and the driver 120 are connected.
As shown in FIG. 4, the pin 120 a is provided on the driver moving shaft 121 that passes through the center of gravity 127 of the driver 120. As a result, the flexible member 160 is disposed on the driver moving shaft 121 that passes through the center of gravity 127 of the driver 120. FIG. 5 shows a state where the configuration is viewed from the rear side. The center of gravity 127 is an example of the “center of gravity” according to the present invention.
With this configuration, it is possible to stabilize the operation of the driver 120 moving the movable portion 132 via the flexible member 160 and the operation of the movable portion 132 moving the driver 120 via the flexible member 160. . Further, as a configuration of the driver guide 111, it is not necessary to provide a mechanism for suppressing the driver 120 from moving while inclining.
As shown in FIG. 4, the driver 120 has a front end portion 123, a rear end portion 124, an upper side surface 125, and a lower side surface 126. The front end 123 is an example of a “front end” according to the present invention, and the rear end 124 is an example of a “rear end” according to the present invention. The configuration in which the flexible member 160 is disposed in the concave portion 120b of the driver 120 described above can be said that the flexible member 160 is disposed in a region between the front end portion 123 and the rear end portion 124. In this configuration, it can be said that the rear end portion 124 forms a non-connection region of the flexible member 160.
For example, a configuration for connecting the flexible member 160 to the rear side of the rear end portion 124 may be provided.

As shown in FIG. 4, the rear end portion 124 is formed with a width direction 100c and a protruding portion 124a protruding downward. The front end portion 123 collides with the nail 180 when the driver 120 moves from the driver reference position 121a to the driver driving position 121b. At this time, as shown in FIG. 7, the protruding portion 124 a comes into contact with the stopper 118 provided on the main body 101. This configuration prevents the driver 120 from moving further forward. As shown in FIG. 2, when the driver 120 moves from the driver driving position 121 b to the driver reference position 121 a, the protrusion 124 a comes into contact with the stopper 117 provided on the main body 101. This configuration prevents the driver 120 from moving further to the rear side.
As shown in FIG. 6, a leg 124 b that engages with the groove 115 a of the flywheel 115 is formed below the driver 120. With this configuration, when the driver 120 is pressed by the pressing roller 116a, the driver 120 is moved to the front side by engaging the leg portion 124b and the groove portion 115a.

(Description of operation)
Next, the operation of the nailing machine 100 will be described with reference to FIG. 2 and FIGS. FIG. 2 shows a state (standby state) in which the driver 120 is placed at the driver reference position 121a and the movable part 132 is placed at the movable part reference position 133a. In the standby state, the flywheel 115 is rotationally driven by a drive motor. When the user operates the trigger 103a when the nail driver 100 is in the standby state, the pressing roller 116a presses the driver 120 against the flywheel 115, and the leg portion 124b of the driver 120 engages with the groove portion 115a of the flywheel 115. . As a result, the rotational force of the flywheel 115 is transmitted to the driver 120.

As a result, as shown in FIG. 7, the driver 120 is placed at the driver driving position 121b, and the nail 180 is driven into the driving target. As the driver 120 moves from the driver reference position 121a to the driver driving position 121b, the movable portion 132 is moved from the movable portion reference position 133a to the movable portion moving position 133b via the flexible member 160. As a result, the compression coil spring 142 is compressed.
When the user stops operating the trigger 103a in the driving state, the pressing roller 116a is separated from the driver 120. As a result, the engagement between the flywheel 115 and the driver 120 is released, and the compression coil spring 142 is extended. With the extension operation of the compression coil spring 142, the movable part 132 is moved from the movable part moving position 133b to the movable part reference position 133a. As the movable part 132 moves, the driver 120 is moved from the driver driving position 121b to the driver reference position 121a via the flexible member 160.

According to the nailing machine 100 according to the first embodiment, the driver 120 and the movable portion 132 are connected via the flexible member 160 whose direction is changed by the pulley 170 (the first pulley 171 and the second pulley 172). Therefore, the second moving mechanism 130 can be arranged at a desired position in the main body 101. Therefore, the shape of the main body 101 can be optimized. In particular, the upper region of the driver 120 in the main body 101 can be a non-formation region of the second moving mechanism 130. Accordingly, it is possible to provide the nailing machine 100 in which the length in the height direction 100b in the upper region of the driver 120 is shortened.
In addition, the nailing machine 100 can be configured by configuring the single second moving mechanism 130 for the driver 120.
Further, the driver moving shaft 121 passes through the center of gravity 127 of the driver 120. Further, the pulley 170 is identical in that the driver moving shaft 121 and the movable portion moving shaft 133 are defined by the longitudinal direction 100a and the width direction 100c. Since the configuration is arranged on the surface, the moving operation of the driver 120 and the moving operation of the movable portion 132 can be stabilized.

FIG. 8 shows the state of the compression coil spring 142 in the standby state. In the standby state, a gap is formed between the compression coil spring 142 and the protection member 150. FIG. 9 shows the state of the compression coil spring 142 in the middle of moving from the standby state to the driving state. In this state, with the compression operation of the compression coil spring 142, the outer diameter of the compression coil spring 142 expands and contacts the protection member 150. Further, when the compression coil spring 142 is further compressed, the region of the protection member 150 is sandwiched between the wire members of the compression coil spring 142. When the compression coil spring 142 is compressed, the region of the protection member 150 sandwiched between the wire members of the compression coil spring 142 is a sandwiched region 150a.
By configuring the sandwiched region 150a, it is possible to suppress a phenomenon in which the wire rods of the compression coil spring 142 collide with each other and a surging phenomenon in which the compression coil spring 142 vibrates at a specific frequency.

(Second Embodiment)
Next, the structure of the nailing machine 200 which concerns on 2nd Embodiment of this invention is demonstrated based on FIGS. FIG. 10 is an explanatory view showing the first moving mechanism 113 and the second moving mechanism 130 when the nailing machine 200 is in a standby state, and FIG. 11 is an explanatory view of the nailing machine 200 according to FIG. FIG. 12 is an explanatory diagram showing the first moving mechanism 113 and the second moving mechanism 130 when the nail driver 200 is in the driving state.
As shown in FIG. 10, the nailing machine 200 according to the second embodiment differs from the nailing machine 100 according to the first embodiment in the arrangement structure of the pulley 170 and the connection structure between the driver 120 and the flexible member 160.

  As shown in FIG. 10, when the pulley 170 of the nailing machine 200 is faced from the upper side, a straight line connecting the rotation shaft 171a of the first pulley 171 and the rotation shaft 172a of the second pulley 172 is a longitudinal direction 100a or a width. The first pulley 171 and the second pulley 172 are arranged so as to be inclined with respect to the direction 100c. Further, as shown in FIG. 11, when the nailing machine 200 is faced from the rear side, the first pulley 171 and the second pulley 172 are arranged so as to overlap each other. With this configuration, the arrangement form of the second moving mechanism 130 in the width direction 100c can be a compact structure.

As shown in FIG. 11, the annular portion 161 of the flexible member 160 is connected to a convex portion 125 c provided on the upper side surface 125 of the driver 120. With this configuration, the connection structure between the driver 120 and the flexible member 160 can be simplified, so that the cost of the nailing machine 200 can be reduced. Also in this configuration, the flexible member 160 is disposed in a region between the front end portion 123 and the rear end portion 124 of the driver 120, and the rear end portion 124 is further configured to be the flexible member 160. Configure the unconnected area.
As shown in FIG. 12, in the driving state of the nailing machine 200, the driver 120 is moved to the driver driving position 121b, and the movable part 132 is moved to the movable part moving position 133b. Further, the driver 120 is moved to the driver reference position 121a via the flexible member 160 in accordance with the movement of the movable part 132 to the movable part reference position 133a. That is, the nailing machine 200 of the second embodiment can perform a driving operation similar to that of the nailing machine 100 of the first embodiment.

(Third embodiment)
Next, the structure of the nailing machine 300 which concerns on 3rd Embodiment of this invention is demonstrated based on FIG.
FIG. 13 is an explanatory diagram showing the first moving mechanism 113 and the second moving mechanism 130 when the nail driver 300 is in a standby state.
As shown in FIG. 13, the nailing machine 300 of the third embodiment is different in the configuration of the pulley 170 from the nailing machine 100 of the first embodiment.

As shown in FIG. 13, a single third pulley 173 is used as the pulley 170 of the nailing machine 300. As shown in FIG. 13, when the third pulley 173 of the nailing machine 300 is faced from above, a predetermined region of the third pulley 173 and the driver 120 are arranged so as to overlap each other. In this case, the rotation shaft 173 a of the third pulley 173 is disposed in a region that does not overlap the driver 120. In this configuration, it can be said that the rotation shaft 173 a of the third pulley 173 is provided in a non-arrangement region of the driver 120 in the main body 101.
A notch 124 c is formed in the area of the driver 120 that overlaps with the third pulley 173. The notch 124c extends to a predetermined region in the longitudinal direction 100a. For this reason, the upper side surface 125 of the driver 120 has a first upper side surface 125a located in a region where the notch portion 124c is not formed and a second upper side surface 125b located in a region where the notch portion 124c is formed. A predetermined region of the third pulley 173 is disposed on the second upper side surface 125b, and a convex portion 125c to which the annular portion 161 of the flexible member 160 is connected is formed.

  In this configuration, the arrangement form of the second moving mechanism 130 in the width direction 100c can be made compact by overlapping the predetermined areas of the driver 120 and the third pulley 173. Further, by arranging the predetermined region of the third pulley 173 in the notch portion 124c of the driver 120, the arrangement form of the third pulley 173 and the flexible member 160 in the height direction 100b can be made a compact structure. It becomes.

(Fourth embodiment)
Next, the structure of the nailing machine 400 which concerns on 4th Embodiment of this invention is demonstrated based on FIG.
FIG. 14 is an explanatory view showing a state where the nailing machine 400 is faced from the rear side.
As shown in FIG. 14, the nailing machine 400 of the fourth embodiment is different in the arrangement structure of the pulleys 170 from the nailing machine 300 of the third embodiment.

  As shown in FIG. 14, a single third pulley 173 is used as the pulley 170 of the nailing machine 400. As shown in FIG. 14, the rotating shaft 173a of the third pulley 173 is disposed in an inclined state with respect to the height direction 100b or the width direction 100c. With this configuration, the second moving mechanism 130 can be overlapped with the pressing roller 116a when facing from the rear side. Therefore, the arrangement form of the second moving mechanism 130 in the height direction 100b and the width direction 100c can be a compact structure.

(Fifth embodiment)
Next, the structure of the nailing machine 500 which concerns on 5th Embodiment of this invention is demonstrated based on FIG. 15 and FIG. 15 is an explanatory view showing the first moving mechanism 113 and the second moving mechanism 130 when the nail driver 500 is in a standby state, and FIG. 12 is a diagram showing the first moving mechanism 113 when the nail driver 500 is in a driving state. It is explanatory drawing which shows the 2nd moving mechanism.
As shown in FIG. 15, the nailing machine 500 of the fifth embodiment is different in the configuration of the second moving mechanism 130 from the nailing machine 100 of the first embodiment.

As shown in FIG. 15, when the nailing machine 500 is faced from above, the pair of second moving mechanisms 130, the pulley 170, and the flexible member 160 are arranged with the driver 120 interposed therebetween. In this case, the pair of second moving mechanisms 130, the pulley 170, and the flexible member 160 have the same configuration as the nailing machine 100 of the first embodiment.
The pair of flexible members 160 are respectively connected to the pair of convex portions 125 c provided on the upper surface 125 of the driver 120. Further, the driver moving shaft 121 passes through an intermediate portion between the pair of convex portions 125c. This makes it possible to stabilize the movement operation of the driver 120 by the pair of flexible members 160.

According to the nailing machine 500 according to the fifth embodiment, since a pair of spring elements 141 are provided in particular, a configuration for extending the life of the spring elements 141 and a desired biasing force for moving the driver 120 are provided. As a configuration for obtaining the above, a flexible design can be performed. The nailing machine 500 according to the fifth embodiment uses a pair of the second moving mechanism 130, the pulley 170, and the flexible member 160. However, a larger number of the second moving mechanism 130, the pulley 170, and the flexible member 160 are used. A member 160 can be disposed.
As shown in FIG. 16, in the driving state of the nailing machine 500, the driver 120 is moved to the driver driving position 121b, and each movable part 132 is moved to the movable part moving position 133b. Further, the driver 120 is moved to the driver reference position 121a via the flexible member 160 in accordance with the movement of the movable part 132 to the movable part reference position 133a. That is, the nailing machine 500 of the fifth embodiment can perform a driving operation similar to that of the nailing machine 100 of the first embodiment.

(Sixth embodiment)
Next, the structure of the nailing machine 600 which concerns on 6th Embodiment of this invention is demonstrated based on FIG.
FIG. 17 is an explanatory diagram showing the first moving mechanism 113 and the second moving mechanism 130 when the nailing machine 600 is in a standby state.
As shown in FIG. 17, the nailing machine 600 of the sixth embodiment is different in the configuration of the second moving mechanism 130 from the nailing machine 100 of the first embodiment.

As shown in FIG. 17, the spring element 141 of the nailing machine 600 includes a tension coil spring 143. The movable part moving member 140 is configured by connecting a plurality of tension coil springs 143. The tension coil spring 143 is an example embodiment that corresponds to the “tensile coil spring” according to the present invention.
One end portions of the plurality of coupled tension coil springs 143 are fixed end portions 143 a connected to the fixed portion 131. Further, the other end portions of the plurality of coupled tension coil springs 143 are connected to hook portions provided at the end portions in the movable portion side region 160 b of the flexible member 160. In this configuration, the other end portion of the tension coil spring 143 constitutes the movable end portion 143b, and the hook portion of the flexible member 160 constitutes the movable portion 132. The fixed end portion 143a is an example of "one end portion of a tension coil spring" according to the present invention, and the movable end portion 143b is an example of "the other end portion of the tension coil spring" according to the present invention.

When the nailing machine 600 shifts from the standby state shown in FIG. 17 to the driving state, the driver 120 is moved from the driver reference position 121a to the driver driving position 121b. Accordingly, the tension coil spring 143 is extended through the flexible member 160, so that the movable part 132 is moved from the movable part reference position 133a to the movable part moving position 133b.
Then, when the tension coil spring 143 contracts, the nailing machine 600 is shifted from the driving state to the standby state. By repeating this operation, the nail 180 can be driven even in the nail driver 600.

In addition, according to the nailing machine 600, by using the tension coil spring 143 in place of the compression coil spring 142, it is possible to expand options when designing the movable part moving member 140.
Moreover, since the movable part moving member 140 can be constituted by connecting a plurality of tension coil springs 143 having a predetermined configuration in series, it is possible to share parts in work tools having different configurations.

(Seventh embodiment)
Next, the structure of the nailing machine 700 which concerns on 7th Embodiment of this invention is demonstrated based on FIG.
FIG. 18 is an explanatory diagram showing the first moving mechanism 113 and the second moving mechanism 130 when the nailing machine 700 is in a standby state.
As shown in FIG. 18, the nailing machine 700 of the seventh embodiment is different in the arrangement form of the second moving mechanism 130 compared to the nailing machine 100 of the first embodiment.

That is, in the nailing machine 700, the second moving mechanism 130 is disposed in the grip portion 103. More specifically, the movable portion moving member 140 is arranged so as to extend in the extending direction of the grip portion 103. In addition, the guide part 151 is comprised so that the movable part moving shaft 133 may become linear form.
The movable part 132 and the driver 120 of the second moving mechanism 130 arranged in this way are connected by a flexible member 160 that is bent via a pulley 170 (a first pulley 171 and a second pulley 172). Note that the driver side region 160 a of the flexible member 160 is connected to a convex portion 126 a formed on the lower side surface 126 of the driver 120. The lower surface 126 is an example of the “predetermined surface formed in the driver movement crossing direction” according to the present invention.
According to the nailing machine 700 according to the seventh embodiment, since the second moving mechanism 130 is disposed in the grip portion 103, the driver 120 and the first moving mechanism can be obtained by effectively using the space in the grip portion 103. It is possible to reduce the size of the area of the main body 101 that accommodates 113 and to free design.

(Eighth embodiment)
Next, the structure of the nailing machine 800 which concerns on 8th Embodiment of this invention is demonstrated based on FIG.
FIG. 19 is an explanatory diagram showing the first moving mechanism 113 and the second moving mechanism 130 when the nail driver 800 is in a standby state.
As shown in FIG. 18, the nailing machine 800 of the eighth embodiment differs from the nailing machine 700 of the seventh embodiment in the arrangement of the second moving mechanism 130.

That is, in the nailing machine 800, the second moving mechanism 130 is arranged in the grip portion 103 as in the nailing machine 700. On the other hand, in the nailing machine 800, the guide part 151 is configured so that the movable part moving shaft 133 is curved.
According to the nailing machine 800 according to the eighth embodiment, it is possible to expand options related to the design of the grip portion 103 by configuring the movable portion moving shaft 133 in a curved shape.

  The work tool according to the present invention is not limited to the configuration described above, and various changes and applications can be made. Furthermore, the configurations shown in the first to eighth embodiments can be appropriately combined.

(Correspondence between each component of this embodiment and each component of the present invention)
Correspondence between each component in the above-described embodiment and each component in the present invention is as follows.
The nailing machine 100 is an example of the “work tool” according to the present invention. The nail 180 is an example of the “driving material” according to the present invention. The driver 120 is an example of the “driver” according to the present invention. The driver reference position 121a is an example of the “driver reference position” according to the present invention. The driver driving position 121b is an example of the “driver driving position” according to the present invention. The driver movement axis 121 is an example of the “driver movement axis” according to the present invention. The main body 101 is an example of a “main body” according to the present invention. The first moving mechanism 113 is an example of the “first moving mechanism” according to the present invention. The second moving mechanism 130 is an example of the “second moving mechanism” according to the present invention. The flywheel 115 is an example embodiment that corresponds to the “flywheel” according to the present invention. The flywheel rotating mechanism 114 is an example embodiment that corresponds to the “flywheel rotating mechanism” according to the present invention. The driver operation mechanism 116 is an example of the “driver operation mechanism” according to the present invention. The fixing portion 131 is an example of the “fixing portion” according to the present invention. The movable part 132 is an example embodiment that corresponds to the “movable part” according to the present invention. The movable part moving member 140 is an example embodiment that corresponds to the “movable part moving member” according to the present invention. The movable part reference position 133a is an example of the “movable part reference position” according to the present invention. The movable portion moving position 133b is an example of the “movable portion moving position” according to the present invention. The guide portion 151 is an example of the “guide portion” according to the present invention. The spring element 141 is an example of the “spring element” according to the present invention. The compression coil spring 142 is an example embodiment that corresponds to the “compression coil spring” according to the present invention. The fixed end 142a is an example embodiment that corresponds to the “one end of the compression coil spring” according to the present invention. The movable end 142b is an example embodiment that corresponds to the “other end of the compression coil spring” according to the present invention. The protection member 150 is an example of the “protection member” according to the present invention. The flexible member 160 is an example embodiment that corresponds to the “flexible member” according to the present invention. The pulley 170 is an example of the “direction changing element” according to the present invention. The center of gravity 127 is an example of the “center of gravity” according to the present invention. The front end 123 is an example of the “front end” according to the present invention. The rear end portion 124 is an example embodiment that corresponds to the “rear end portion” according to the present invention. The tension coil spring 143 is an example embodiment that corresponds to the “tensile coil spring” according to the present invention. The fixed end 143a is an example embodiment that corresponds to the “one end of the tension coil spring” according to the present invention. The movable end 143b is an example embodiment that corresponds to the “other end of the tension coil spring” according to the present invention.

In view of the gist of the above invention, the working tool according to the present invention and the electric tool using the working tool can be configured in the following manner.
(Aspect 1)
The region of the flexible member that extends from the driver to the direction change element extends along the driver movement axis.
(Aspect 2)
The direction changing element has a first pulley and a second pulley,
When the work tool is faced from the rear side, the first pulley and the second pulley are arranged to overlap each other.
(Aspect 3)
When the work tool is faced from the upper side, the predetermined area of the direction changing element and the predetermined area of the driver are arranged to overlap each other.
(Aspect 4)
The direction changing element is constituted by a pulley,
The rotating shaft of the pulley is disposed in an inclined state with respect to the height direction or the width direction.
(Aspect 5)
A plurality of second moving mechanisms are provided.
(Aspect 6)
The main body has a grip that is gripped by the user,
The second moving mechanism is arranged in the grip part.

100, 200, 300, 400, 500, 600, 700, 800 Nailing machine (work tool)
100a Longitudinal direction 100b Height direction 100c Width direction 101 Body portion 103 Grip portion 103a Trigger 105 Magazine 111 Driver guide 111a Driving hole 112 Contact arm 113 First moving mechanism 114 Flywheel rotating mechanism 115 Flywheel 115a Groove 116 Driver operating mechanism 116a Press Roller 117 Stopper 118 Stopper 120 Driver 120a Pin 120b Recessed portion 120c Pin insertion hole 121 Driver moving shaft 121a Driver reference position 121b Driver driving position 122 Driver moving crossing direction 123 Front end portion 124 Rear end portion 124a Protruding portion 124b Leg portion 124c Notch portion 125 Upper side 125a First upper side 125b Second upper side 125c Convex 126 Lower side 126a Convex 127 Heavy 130 Second moving mechanism 131 Fixed portion 131a Hole portion 132 Movable portion 132a Hole portion 132b Bottom surface portion 132c Side wall portion 132d Fixed member 133 Movable portion moving shaft 133a Movable portion reference position 133b Movable portion moving position 140 Movable portion moving member 141 Spring element 142 Compression coil spring 142a Fixed end (one end)
142b Movable end (other end)
143 Tensile coil spring 143a Fixed end (one end)
143b Movable end (other end)
150 Protective Member 150a Clamping Area 151 Guide Part 160 Flexible Member 160a Driver Side Area 160b Movable Part Side Area 161 Annular Part 170 Pulley (Direction Conversion Element)
171 First pulley 171a Rotating shaft 171b Groove 172 Second pulley 172a Rotating shaft 172b Groove 173 Third pulley 173a Rotating shaft 180 Nail (driving material)
190 battery

Claims (11)

A working tool that performs a predetermined driving operation by moving the driving material linearly,
A main body that houses a drive motor, a driver, a first moving mechanism, and a second moving mechanism;
The driver is configured to be able to reciprocate between a driver reference position and a driver driving position separated from the driver reference position, and moves the driving material from the driver reference position to the driver driving position. It is configured to move linearly along the driver movement axis,
The first moving mechanism is configured to move the driver from the driver reference position to the driver driving position by an output of the drive motor,
The second moving mechanism is configured to move the driver from the driver driving position to the driver reference position;
The second moving mechanism includes:
A fixing part fixed to the main body part;
A movable part configured to be movable with respect to the fixed part;
A movable part moving member that moves the movable part,
The main body further contains a flexible member that connects the movable part to the driver,
The movable part is configured to be capable of reciprocating between a movable part reference position and a movable part moving position separated from the movable part reference position,
When the driver is moved from the driver reference position to the driver driving position by the first moving mechanism, the movable part moves from the movable part reference position to the movable part moving position via the flexible member. And
When the movable part is moved from the movable part moving position to the movable part reference position by the movable part moving member, the driver is moved from the driver driving position to the driver reference position via the flexible member. A working tool characterized by that. The work tool according to claim 1,
The work tool, wherein the flexible member is connected to a predetermined region of the driver on the driver moving shaft passing through the center of gravity of the driver. The work tool according to claim 1 or 2,
The driver has a front end that collides with the driving material when the driver is placed in the driver driving position, and a rear end opposite to the front end.
The flexible member is connected to a region between the front end portion and the rear end portion, and the rear end portion forms a non-connection region of the flexible member. tool. The work tool according to any one of claims 1 to 3,
The work tool characterized in that the main body further houses a direction changing element configured to bend the flexible member. The work tool according to any one of claims 1 to 4,
The working tool characterized in that the movable part moving member is constituted by at least one spring element. The work tool according to claim 5,
The spring element is constituted by a compression coil spring,
One end portion of the compression coil spring is disposed on the fixed portion, and the other end portion of the compression coil spring is disposed on the movable portion,
The flexible member is connected to the movable part through the fixed part and through the inner diameter part of the compression coil spring. The work tool according to claim 5,
The spring element comprises a tension coil spring;
One end portion of the tension coil spring is disposed on the fixed portion, and the other end portion of the tension coil spring is disposed on the movable portion. The work tool according to any one of claims 5 to 7,
The second moving mechanism has a guide portion that guides an expansion / contraction operation of the spring element,
The work tool characterized in that the guide portion extends linearly or curvedly. The work tool according to any one of claims 5 to 8,
A protective member having flexibility is provided on the outer periphery of the spring element,
The work tool characterized in that the protection member has a region that is sandwiched between wires constituting the spring element when the spring element is compressed. The work tool according to any one of claims 7 to 9,
The work element, wherein the spring element is configured by connecting a plurality of the tension coil springs in series. It is a work tool given in any 1 paragraph of Claims 1-10,
The first moving mechanism includes:
A flywheel rotation mechanism for rotating the flywheel by the drive motor;
A working tool comprising: a driver operating mechanism that selectively transmits the rotational operation of the flywheel to the driver to move the driver from the driver reference position to the driver driving position.

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