JP2019072843A - Rotary tool - Google Patents

Abstract

To improve rigidity of a housing body section of a rotary tool.SOLUTION: An impact driver 1 includes: a motor which rotates a tool mounted on one end side in a rotary shaft direction; and a housing 4 which has a housing body section 11 formed into a cylindrical shape extending in the rotary shaft direction of the motor so that the motor can be stored therein. The housing body section 11 is formed by joining a pair of partial housings (right and left housings 4a and 4b) divided by a prescribed parting plane, and has a housing fixing member (holding member 30) fixed over the pair of the partial housings on the other end side in the rotary shaft direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a rotary tool having a housing containing a drive for rotating a tool, and a hanger for suspending the housing.

  2. Description of the Related Art A rotary tool is known which has a housing in which a driving unit for rotating a tool is housed, and a hanger for suspending the housing. For example, Patent Document 1 discloses a configuration in which a mounting hook as a hanging tool is provided on a side wall extending to the tip end side of a grip portion in an electric power tool main body.

  Thereby, the attachment hook can be attached to a hook such as a carabiner having an openable / closable gate provided near the waist of the worker. Therefore, when the worker does not use the power tool, the power tool can be hooked on the waist belt of the worker, so that the work which does not require the power tool can be performed with both free hands.

  By the way, in the cylindrical main body portion of the electric power tool main body, a driving portion such as a motor for rotating the tool is accommodated. Therefore, the main body of the electric power tool is heavier than the grip. In such a configuration, when the hanging tool is provided on the tip side of the grip as in the configuration disclosed in Patent Document 1, the hanging tool is disposed near the waist of the worker In the mounted state, the heavy main body portion is located below the grip portion. Then, each time the heavy body swings, the operator feels that the user is pulled by the inertia force of the rotary tool. This kind of feeling is uncomfortable for some people.

  On the other hand, for example, Patent Document 2 discloses a hanging tool attached to a side surface of a motor unit of a power tool. In this hanger, the side body in contact with the side surface of the motor portion is a tip formed in a ring shape in which the upper member, the lower member, the upper member and the lower member are each extended forward. And a locking portion. The distal end locking portion is locked to the distal end portion of the motor portion. The upper and lower members are connected by bolts.

  Further, the hanging tool in Patent Document 2 includes a slide member which is slidably moved in the axial direction to the rear of the side body so as to be adjustable in length. The slide member is screwed to the side body in a state of being adjusted relative to the side body in accordance with the size of the power tool to which the hanger is attached. The rear of the slide member is hollow so as to be hung on the connection ring of the worker's work belt.

  On the rear side of the hanger in Patent Document 2, the side body and the slide member are fixed by a ring-shaped hose band.

  With the above-described configuration, in the configuration of Patent Document 2, the hanger can be attached to the motor portion of various power tools having different lengths and sizes. When the suspension with such a configuration is hooked on the operator's waist belt, the heavy motor part is located on the upper side and the grip part is located on the lower side. Therefore, in the case of the configuration of Patent Document 2, compared with the configuration disclosed in the above-mentioned Patent Document 1, the inertial force generated in the power tool when the power tool hooked on the waist belt of the worker shakes. Is small.

Patent No. 5416649 gazette Utility model registration 3134808 gazette

  By the way, in the configuration in which the hanging tool of another member is attached to the rotating tool as in the configuration disclosed in Patent Document 2, the performance of the rotating tool is adversely affected depending on the mounting method of the hanging tool. there is a possibility. That is, in the configuration disclosed in Patent Document 2, the upper member and the lower member of the side body are connected by the bolt, but if the bolt is tightened too much, the motor portion is distorted and the internal motor etc. This may adversely affect the electrical components of the motor, or cause the shaft center of the shaft connecting the motor and the tool to shift. Further, depending on the position where the side body is attached to the motor unit, the exhaust heat of the motor may be hindered.

  Further, in the configuration disclosed in Patent Document 2, in order to fix the hanging tool to the rotating tool, the overall size is increased and the hanging tool is not reliably fixed to the rotating tool. There is also a possibility that the rotating tool may drop from the hanger.

  An object of the present invention is to realize a compact configuration in which the rotary tool can be suspended more reliably without obstructing the performance of the rotary tool.

  A rotary tool according to an embodiment of the present invention includes: a drive unit configured to rotate the tool; and a housing main body formed in a cylindrical shape extending in the rotational axis direction of the drive unit so as to be able to accommodate the drive unit therein. A housing having a grip extending in a predetermined direction from the housing body, and a suspending portion capable of suspending the housing, and the housing body at an end in the rotation axis direction of the housing body And a hanger provided slidably in the direction of the rotational axis. The housing main body portion is provided with an accommodating portion capable of accommodating the hanger and capable of sliding the hanger in the rotational axis direction (first configuration).

  Thus, the rotating tool can be suspended by the hanger provided at the end in the direction of the rotation axis of the housing main body in which the driving unit for rotating the tool is accommodated. The hanger is slidably housed in the housing portion provided in the housing main body in the rotation axis direction. Therefore, it is not necessary to attach a separate hanger to the housing main body, and a problem such as the configuration disclosed in Patent Document 2 described above does not occur.

  That is, by providing the hanger in the housing main body, as compared with the configuration disclosed in Patent Document 2 for attaching the separate hanger, compactification and improvement in strength of the connection portion between the hanger and the housing main body As a result, it is possible to prevent the occurrence of problems in attaching the hanger.

  Further, when the hanger is not required, the rotary tool can be made compact because the holder can be accommodated in the housing portion of the housing main body by sliding the hanger.

  Furthermore, as described above, the hanger can be easily switched between the pulled-out position and the accommodated position in the housing body by configuring the hanger to slide relative to the housing body. .

  In the first configuration, the hanger is a U-shaped plate-like member in a plan view including a pair of support portions extending in the rotation axis direction and a connection portion connecting the support portions, the connection It is arrange | positioned along the side surface of the said housing main-body part so that a part may be located in the outward side of the said rotating shaft direction in the said housing main-body part. Each of the pair of support portions has a support portion main body located on the connection portion side. The said suspending part is comprised by the said support part main body and the said connection part (2nd structure).

  Thus, the rigidity of the said hanging tool can be improved by comprising a hanging tool by U-shaped plate-shaped member by planar view. Therefore, the strength of the hanger can be improved.

  Moreover, the hanger can be compactly arranged with respect to the housing body by arranging the hanger with a plate-like member and arranging along the side surface of the housing body. Therefore, the enlargement of the rotary tool can be suppressed.

  In addition, since the suspending portion is constituted by the supporting portion main bodies respectively provided by the pair of supporting portions of the suspending device and the connecting portion, the suspending portion is formed in a U shape such that a hooking tool such as a carabiner can be hung. It can be formed.

  In the second configuration, the pair of support portions further includes a slide portion which has a narrower gap between the support portions than the support portion main body and which slides relative to the storage portion, the support portion main body, and the support portion main body And a step portion located between the slide portion and the slide portion. The housing main body portion is provided with an abutting portion with which the stepped portion abuts in a state in which the hanger is positioned at the accommodation position in the accommodation portion (third configuration).

  Thus, when the hanger is slid to the storage position in the storage unit, the stepped portion of the hanger hits the contact portion provided on the housing main body. Therefore, the hanger can be more reliably positioned at the storage position in the storage portion.

  In the second or third configuration, the support portion main body is provided with a crank portion bent in a crank shape such that a distance between the pair of support portions is narrowed (fourth configuration). Thereby, in the state where a fastener such as a carabiner or the like is attached to the hanger, when removing the hanger, the crank part provided on the supporting portion main body of the hanger is used to make the fastener with one hand It is possible to remove the lifting device. That is, a crank portion provided on the main body of the support portion of the support portion positioned outside the carabiner among the pair of support portions in the hanger is pressed against the gate portion of the carabiner so as to open the gate portion. As a result, the gate portion and the main body portion sandwich the crank portion. In this state, the hanger can be removed from the carabiner with one hand by pressing the hanger against the gate in a direction to open the gate.

  Therefore, with the above-mentioned configuration, the hanger can be easily removed from the fastener.

  In any one of the first to fourth configurations, at the end of the housing main body, the hanger is held in a direction orthogonal to the rotation axis direction with respect to the housing main body. (5th structure) further provided with the holding | maintenance part provided in.

  Thereby, the movement of the hanger in the direction orthogonal to the rotation axis direction is restricted by the holding portion. Therefore, the hanger can be smoothly slid in the rotation axis direction with respect to the housing main body.

  And since the said holding | maintenance part is attached to the edge part of the said rotating shaft direction of the said housing main-body part, the rigidity of the said housing main-body part can be improved by the said holding | maintenance part. Therefore, the rigidity of the whole rotary tool can be improved, and the tool can be rotated in a stable state by the drive unit.

  In any one of the first to fifth configurations, the grip portion further includes an annular fixed hanger provided on the side opposite to the housing body portion. At least the outer peripheral portion of the fixing hanger is bent in the thickness direction (sixth configuration).

  Thus, the worker can attach the one of the hanger and the fixed hanger, which is easy to use, to the hook. Therefore, the convenience of the worker can be improved.

  In addition, the rigidity of the fixed hanger can be improved by bending the outer peripheral portion of the fixed hanger in the thickness direction. Therefore, the strength of the fixing hanger can be improved.

  According to the rotary tool according to the embodiment of the present invention, the hanger is slidably accommodated in the rotational axis direction of the drive unit in the accommodation unit provided in the housing main body unit in which the drive unit is accommodated. . This provides a compact rotary tool configuration that allows the rotary tool to be more reliably suspended by the hanger without impeding the performance of the rotary tool.

FIG. 1 is a side view showing a schematic configuration of an impact driver according to an embodiment of the present invention. FIG. 2 is a perspective view of the impact driver as viewed obliquely from the rear with the protector and the side cover removed. FIG. 3: is the FIG. 2 equivalent view at the time of slidingly moving a hanger to a drawing-out position in the state which removed the protector and the side cover. FIG. 4 is a plan view of the hanger. FIG. 5 is a view of the hanger as viewed from the connecting portion side. FIG. 6 is a view of the holding member as viewed from the connecting portion side. FIG. 7 is a side view of the holding member as viewed from the side. Drawing 8 is a figure showing typically signs that a suspending tool is removed from a carabiner. FIG. 9 is a side view of the impact driver with the protector, the side cover, and the locking member removed. FIG. 10 is a plan view of the fixing member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the dimension of the structural member in each figure does not faithfully represent the dimension of an actual structural member, the dimensional ratio of each structural member, etc.

(overall structure)
FIG. 1 is a side view showing a schematic configuration of an impact driver 1 as a rotary tool according to an embodiment of the present invention. The impact driver 1 applies a rotational impact force to a bolt, a nut or the like by rotating a tool (not shown) called a bit attached to the anvil 3 by a rotational driving force obtained from the motor 2 (driving unit).

  In the following description, the left side in FIG. 1 is referred to as the front of the impact driver (hereinafter, also simply referred to as the front), and the right in FIG. 1 is referred to as the rear of the impact driver (hereinafter, also referred to as the only rear). The upper side in FIG. 1 is referred to as the upper side of the impact driver, and the lower side in FIG. 1 is referred to as the lower side of the impact driver. In addition, the description regarding the drive part of the impact driver 1 is abbreviate | omitted.

  The impact driver 1 includes a motor 2, a drive mechanism (not shown) driven by the motor 2, a housing 4 for housing the motor 2 and the drive mechanism, a front cover 5, a protector 6, a side cover 7, and a hanger. It comprises a mechanism 8, a hook 9 and a (fixed hanger). The motor 2 has an output shaft 2a that transmits rotational drive force to the drive mechanism. In FIG. 1, reference symbol P is a rotation axis of the motor 2. Detailed description of the configuration of the motor 2 and the drive mechanism is omitted.

  The housing 4 has a housing body 11, a grip 12 and a power supply attachment 13. The housing 4 is configured by combining the right housing 4a and the left housing 4b (see FIG. 2). That is, the housing 4 has a configuration divided into right and left as viewed in the axial direction of the rotation axis line P of the motor 2 (hereinafter referred to as the rotation axis direction). By combining the right housing 4a and the left housing 4b, the housing body 11, the grip 12 and the power supply attachment 13 are formed.

  The housing body portion 11 is formed in a cylindrical shape extending in the rotational axis direction of the motor 2. Inside the housing body 11, the motor 2 and the drive mechanism are accommodated.

  An opening (not shown) is provided at the front end of the housing main body 11, and the anvil 3 projects forward in the direction of the rotation axis in the opening. As shown in FIG. 1, the front end portion of the housing body 11 is covered by the front cover 5 in a state where the anvil 3 is inserted through the opening.

  The rear end portion of the housing main body portion 11 is covered by the protector 6 in a state where a holding member 30 (holding portion) of the hanger mechanism 8 described later is attached.

  Recesses 15 and 16 for arranging the pair of hangers 20 and 60 of the hanger mechanism 8 are respectively formed on the left and right sides of the side surface of the housing main body 11 when viewed from the direction of the rotation axis (FIG. 2 , FIG. 3, FIG. 9). That is, the pair of hangers 20 and 60 are disposed on the left and right sides of the side surface of the housing body 11. Side covers 7 are disposed on the left and right sides of the side surface of the housing body 11 so as to cover the hangers 20 and 60.

  As described above, by arranging the pair of suspending devices 20, 60 on the left and right sides of the housing main body portion 11, the operator can select the pair of suspending devices by either the left handed operator or the right handed worker. It becomes possible to attach one of 20 and 60 to the fastener.

  The configurations of the recesses 15 and 16 provided in the housing main body 11 are the same, and the configurations of the hangers 20 and 60 are the same. Therefore, in the following description, the recess 15 formed on the side surface of the housing body 11 and Only the configuration of the hanger 20 disposed in the recess 15 will be described.

  The recessed part 15 formed in the side of the housing main-body part 11 is formed in the shape which can accommodate the hanger 20 so that it may mention later. That is, the recess 15 is capable of storing the wide first recess 15 a capable of storing the support portion main bodies 24 and 25 described later of the hanger 20 and the slide portions 26 and 27 and is narrower than the first recess 15 a. And a second recess 15b (see FIG. 3).

  As shown in FIG. 1, the grip portion 12 is a portion to be gripped by an operator, and extends from the housing body portion 11 in a direction (predetermined direction) orthogonal to the rotation axis P. In FIG. 1, the grip 12 extends downward from the housing body 11. The grip portion 12 is provided with a trigger switch 12 a for controlling the driving of the motor 2 such as ON / OFF.

  The power supply mounting portion 13 is provided on the opposite side of the grip portion 12 to the housing body portion 11. In FIG. 1, the power supply mounting portion 13 is provided below the grip portion 12. The power supply attachment portion 13 is configured to be connectable to a battery B that supplies power to the impact driver 1. The power supply mounting portion 13 is formed in a plate shape extending in the front, rear, left, and right directions of the impact driver 1 so as to cover a part of the upper portion of the battery B.

  The housing body 11, the grip 12, and the power supply attachment 13 having the above-described configuration are integrally formed.

  The hook portion 9 is attached to a hooking tool such as a carabiner attached to the waist or the like of the worker. The hook portion 9 has an annular hanging portion 9a and a fixing portion 9b, and the fixing portion 9b is attached by a screw to the side of the power supply mounting portion 13 so that the hanging portion 9a protrudes to the rear of the impact driver 1 ing. At least the outer peripheral side of the hook portion 9 is bent in the thickness direction. Specifically, the hook portion 9 is bent in the thickness direction on the inner peripheral side and the outer peripheral side of the hanging portion 9a, and is also bent in the thickness direction on the outer peripheral side of the fixing portion 9b. Thereby, the rigidity of the hook portion can be improved as compared with the case where the hook portion is formed by a flat plate, and the strength of the hook portion can be improved.

  In the hook portion 9, the hanging portion 9a is attached to the hooking tool. Therefore, when the hook portion 9 is attached to the hooking tool, the power supply attaching portion 13 is positioned on the upper side, and the housing main body portion 11 in which the motor 2 and the drive mechanism are accommodated is heavy. Located on the side.

  The hanging portion 9a is formed in an annular shape having an oval hole. The hanging portion 9a is formed with a recessed portion 9c which is recessed in the thickness direction of the hanging portion 9a at a central portion in the long axis direction. The recessed part 9c is provided in two places of the short axis direction in the suspending part 9a.

  By providing the recess 9c, the hanging portion 9a can be easily attached to and detached from the hook. That is, by applying the recess 9 c to, for example, the gate portion of the carabiner, the hanging portion 9 a is less likely to slip relative to the gate portion. Therefore, attachment or detachment of the suspension part 9a with respect to a latching tool becomes easy.

  The hook portion 9 is attached to the power supply attachment portion 13 in a state of being obliquely inclined with respect to the vertical direction of the impact driver 1. Thus, the hanging portion 9a can be easily attached to and detached from the hook.

  Further, a step is formed between the suspending portion 9 a and the fixing portion 9 b so that the suspending portion 9 a is separated from the power supply attaching portion 13. Thus, the hanging portion 9 a can be separated from the housing 4 of the impact driver 1. Thus, the hanging portion 9a can be easily attached to and detached from the hook.

(Hanger mechanism)
Next, the configuration of the hanger mechanism 8 disposed in the housing body 11 will be described with reference to FIGS. 1 to 7. FIG. 2 is a perspective view of the impact driver 1 as viewed obliquely from the rear. FIG. 3: is the FIG. 1 equivalent view in the state which slid the hanger 20 to the drawing | extracting position. 2 and 3 show the impact driver 1 with the protector 6 and the side cover 7 removed for the sake of explanation.

  The hanger mechanism 8 is configured such that the hanger 20 can slide in the rotational axis direction of the motor 2 with respect to the housing body 11. The hanging tool 20 has a hanging portion 20a capable of mounting the hanging tool 20 on a hook in a state of being pulled out from the housing main body 11 (see FIG. 3). Thereby, the impact driver 1 can be suspended by the hook.

  As shown in FIGS. 2 and 3, the hanger mechanism 8 holds the hanger 20 disposed slidably on the side surface of the housing main body 11 and a holder for holding the hanger 20 on the housing body 11. A member 30 (holding portion) and a locking mechanism 40 for fixing the hanger 20 at the storage position and the pull-out position, respectively, are provided.

  The top view of the hanger 20 is shown in FIG. The figure which looked at the hanger 20 in FIG. 5 from the connection part side is shown.

  As shown in FIG. 4, the hanger 20 is formed in a U-shape in plan view. In addition, the hanger 20 is formed by bending a plate-like member. That is, the hanger 20 is a U-shaped plate member in plan view.

  The hanger 20 includes a pair of support portions 21 and 22 extending in one direction, and a connection portion 23 connecting the support portions 21 and 22 at one end. The hanger 20 has a symmetrical shape about a line connecting intermediate points of the pair of support portions 21 and 22. As described above, the symmetrical shape of the hangers 20 allows the pair of hangers 20 and 60 having the same configuration for right-handed and left-handed users to be disposed on the left and right sides of the housing body 11. Therefore, the production cost of the hanger 20 can be reduced.

  The hanger 20 is disposed along the side surface of the housing main body 11 so that the connecting portion 23 is located on the outer side of the housing main body 11 in the rotational axis direction of the motor 2. Thereby, the hanger 20 can be compactly arranged with respect to the housing main body 11. Therefore, the enlargement of the impact driver 1 can be suppressed.

  The pair of support portions 21 and 22 are inclined such that the inward side portion of the hanger 20 is positioned on one side in the thickness direction compared to the outward side portion when viewed from the connection portion 23 side, It is connected by the connection part 23. That is, in a state where the hanger 20 is disposed on the side surface of the cylindrical housing main body portion 11, the pair of support portions 21 and 22 are provided along the side surface as viewed from the rotational axis direction of the motor 2 There is. Therefore, the hanger 20 is curved along the side surface of the housing main body 11 as viewed from the connecting portion 23 side. With the configuration of such a hanger 20, the hanger 20 can be disposed more compactly with respect to the housing main body 11. Therefore, the enlargement of the impact driver 1 can be suppressed more reliably.

  The pair of support portions 21 and 22 includes the support portion main bodies 24 and 25 positioned on the one end side, that is, the connection portion 23 side, and the slide portions 26 and 27 positioned on the other end side. The distance between the slide parts 26 and 27 is smaller than the distance between the support parts 24 and 25. Thus, the pair of support portions 21 and 22 have the step portions 28 and 29 between the support portion bodies 24 and 25 and the slide portions 26 and 27, respectively.

  As described above, by providing the slide portions 26 and 27 having a narrower interval than the support portion main bodies 24 and 25 positioned on the connection portion 23 side in the pair of support portions 21 and 22, as described later, the slide portions Even in the case where the projecting portions 26a and 27a that project in the width direction (the circumferential direction of the housing main body portion 11) are provided at 26 and 27, the hanger 20 can be made compact. Further, as described above, since the step portions 28 and 29 are formed between the support portion main bodies 24 and 25 and the slide portions 26 and 27, respectively, as described later, the step portions 28 and 29 are suspended Can be used as a regulating mechanism that regulates the slide movement of the

  Here, as shown in FIG. 3, the housing main body 11 is formed with a recess 15 capable of accommodating the support portions 21 and 22 of the hanger 20 on both sides (left and right of the side) of the side across the rotation axis P. ing. The concave portion 15 accommodates the first concave portion 15 a capable of accommodating the support main bodies 24 and 25 of the support portions 21 and 22 and having a large dimension in the width direction (the circumferential direction of the housing main body 11) and the slide portions 26 and 27. And a second recess 15b smaller in size than the first recess 15a.

  A stepped portion 15c (contact portion) is formed between the first recess 15a and the second recess 15b. When the hanger 20 is accommodated in the recess 15 as shown in FIG. 2, the steps 28 and 29 of the support portions 21 and 22 abut the step 15 c. Therefore, the step portion 15c of the recess 15 and the step portions 28, 29 of the support portions 21, 22 are regulated so that the hanger 20 does not move closer to the anvil 3 than the storage position (the position shown in FIG. 2).

  In the second recess 15b, grooves 15d extending in the rotational axis direction of the motor 2 are formed on both side surfaces in the width direction (the circumferential direction of the housing body 11) constituting the second recess 15b. In the groove 15d, protrusions 26a, 27a of slide portions 26, 27 described later are positioned.

  As shown in FIGS. 2 and 3, the housing body 11 is provided with a bulging portion 15e on the rear side of the second recess 15b, that is, on the opposite side of the second recess 15b to the anvil 3 . The bulging portion 15 e is provided at a central portion in the width direction (the circumferential direction of the housing main body portion 11) on the rear side of the second concave portion 15 b. The bulging portion 15 e is formed so that the dimension in the width direction is larger than the distance between the slide portions 26 and 27 in the pair of support portions 21 and 22.

  As a result, in the second recess 15 b, a space through which only the support portions 21 and 22 can pass is formed between the side surface defining the second recess 15 b and the bulging portion 15 e. Therefore, when the hanger 20 is pulled out with respect to the housing main body 11, the inward side portion of the hanger 20 in the step portions 28 and 29 of the pair of support portions 21 and 22 abuts on the bulging portion 15e. Thus, the step portions 28 and 29 and the bulging portion 15 e of the pair of support portions 21 and 22 restrict the sliding movement of the hanger 20 in the pulling direction.

  The slide portions 26 and 27 are connected to the support portion bodies 24 and 25 at one end respectively, and toward the other side in the width direction of the hanger 20 (the circumferential direction of the housing main portion 11). It has projecting part 26a, 27a which protrudes.

  The protrusions 26 a and 27 a are disposed in grooves 15 d provided on both sides of the second recess 15 b of the housing main body 11, and move in the grooves 15 d in the rotational axis direction of the motor 2. That is, the slide portions 26 and 27 are disposed slidably in the direction of the rotation axis in the second recess 15 b formed in the housing main body 11.

  With the configuration of the slide parts 26 and 27 described above, the hanger 20 can slide between the housing position shown in FIG. 2 and the drawing position shown in FIG. 3 with respect to the housing main body 11.

  In the slide portions 26 and 27, the dimension in the width direction in the vicinity of the projecting portions 26a and 27a is smaller than the dimension in the width direction of the other portions.

  In the support main bodies 24 and 25, the hanging parts 20 a together with the connecting parts 23 in a state where the hanger 20 is positioned at the drawing position shown in FIG. 3 by sliding movement of the slide parts 26 and 27 in the second recess 15 b. Configure

  The support main bodies 24 and 25 are provided with trapezoidal first cutouts 24 a and 25 a on the inner side of the hanger 20 on one end side (connection part 23 side). Further, in the support portion main bodies 24 and 25, second cutout portions 24 b and 25 b cut out in a trapezoidal shape are provided on the outer side of the hanger 20 on the other end side than the first cutout portions 24 a and 25 a. It is provided.

  With the above configuration, the support main bodies 24 and 25 have a crank shape so that the distance between the support main bodies 24 and 25 is reduced by the first notches 24a and 25a and the second notches 24b and 25b. The crank parts 24c and 25c which were bent in the above are formed. As described later, when the hanger 20 is removed from the carabiner, which is a hook, the cranks 24c and 25c enter between the gate portion of the carabiner and the main body. This allows the operator to pry open the carabiner gate with one hand.

  The first notches 24a and 25a have a longer notch length than the second notches 24b and 25b.

  In the present embodiment, the first notches 24a, 25a and the second notches 24b, 25b are respectively notched in a trapezoidal shape, and the first notches 24a, 25a are second notches. The notch length is longer than 24b and 25b. However, the shapes of the first notches 24a and 25a and the second notches 24b and 25b may be any shape as long as the operator can open the carabiner gate with one hand. The length of each notch may be any length.

  As shown in FIG. 2, when the hanger 20 is positioned at the storage position in the recess 15 of the housing main body 11 as shown in FIG. 2, the outer side portion of the hanger 20 is the step 15 c of the recess 15. Abut on. On the other hand, when the hanger 20 is positioned at the drawing position as shown in FIG. 3, the inward side portion of the hanger 20 in the step portions 28 and 29 is in the bulging portion 15 e provided in the housing main body 11. Abut. Therefore, the step portions 28 and 29 function as part of a restriction mechanism that restricts the slide movement of the hanger 20.

  As shown in FIG. 4, the stepped portions 28 and 29 respectively have locking notches 28 a and 29 a on the inward side of the hanger 20. The locking notches 28a and 29a are each formed in a semicircular shape. Locking members 41 and 42 of a locking mechanism 40 described later engage with the locking notches 28a and 29a, respectively. As will be described in detail later, the locking members 41 and 42 respectively engage with the locking notches 28a and 29a when the hanger 20 is positioned at the storage position and the pulling-out position. Thereby, the hanger 20 can be fixed at the accommodation position and the withdrawal position.

  The connection portion 23 connects one end sides of the pair of support portions 21 and 22 to each other. The connection portion 23 is formed to extend in the thickness direction with respect to the pair of support portions 21 and 22. That is, the hanger 20 has a shape in which the connecting portion 23 is bent in the thickness direction with respect to the pair of support portions 21 and 22. By forming the connecting portion 23 in such a shape, the hanger 20 can be made compact in the longitudinal direction as compared with a configuration in which the connecting portion 23 is not bent, and the rigidity of the hanger 20 can be improved. Can.

  The figure which looked at the hanger 20 in FIG. 5 from the connection part 23 side is shown. As shown in FIG. 5, the connecting portion 23 is provided to connect the pair of supporting portions 21 and 22 arranged in an inclined state as described above. That is, the connection part 23 is formed in a substantially trapezoidal shape as viewed from the thickness direction.

  The connecting portion 23 is provided with a semicircular notch portion 23 a at a portion connecting the inward sides of the hanger 20 in the pair of support portions 21 and 22. By providing the cutaway portion 23a, it is possible to prevent the connecting portion 23 from slipping on the carabiner when attaching the hanger 20 to the carabiner, as described later.

  The connection portions 20b and 20c between the connection portion 23 and the pair of support portions 21 and 22 have an R portion formed of a smooth curved surface on the outer side. Thereby, when removing the hanger 20 with which the fastener was mounted | worn, it can prevent that the connection parts 20b and 20c of the hanger 20 interfere with a fastener. Therefore, the hanger 20 can be easily removed from the fastener.

  Next, the configuration of the holding member 30 will be described with reference to FIGS. 6 is a view of the holding member 30 as viewed from the connecting portion 32 side (the rear side of the impact driver 1), and FIG. 7 is a side view of the holding member 30 as viewed from the side of the impact driver 1.

  The holding member 30 holds the pair of hangers 20 and 60 on the housing body 11. Specifically, a plurality of (four in the present embodiment) holding portions 31 disposed on the side surface of the housing body portion 11 in a state where the holding member 30 is mounted on the housing body portion 11, and the holding portions 31 And a connecting portion 32 connecting the two. The holding member 30 is formed of a plate-like member in which the holding portion 31 and the connecting portion 32 are integrally formed. The holding portion 31 is configured by bending the plate-like member in the thickness direction.

  Each of the plurality of holding portions 31 is curved along the side surface of the housing body portion 11. In the holding member 30, with the holding member 30 attached to the rear end portion of the housing main body 11, the two holding portions 31 among the plurality of holding portions 31 are arranged on the side surface of the housing main body 11. It is formed so that it may be located in the opposite position on either side of. In the case of the present embodiment, since the holding member 30 has the four holding portions 31, the four holding portions 31 hold the housing body portion 11 from four directions.

  The plurality of holding portions 31 includes the pair of hangers 20 and 60 disposed on the side surface of the housing body portion 11 in a state where the holding member 30 is attached to the rear end portion of the housing body portion 11. Hold from the radial direction of the Thus, the pair of hangers 20 and 60 can slide in the direction of the rotational axis of the motor 2 with respect to the housing main body portion 11, while restricting the movement of the housing main body portion 11 in the radial direction.

  The connecting portion 32 is formed to extend in the radial direction of the housing main body 11 in a state where the holding member 30 is attached to the rear end portion of the housing main body 11. A pair of holding parts 31 is provided at both ends of the connecting part 32 respectively. The connecting portion 32 is provided with a through hole 33 through which a screw for fixing the holding member 30 to the housing body portion 11 is inserted between the pair of holding portions 31 at both end portions.

  By attaching the holding member 30 having the above-described configuration to the rear end portion of the housing main body 11, the rigidity of the housing main body 11 can be improved. That is, since the holding member 30 can radially hold the rear end portion of the housing body 11 constituted by the right housing 4a and the left housing 4b, the right housing 4a and the left housing 4b are more firmly connected. can do. As a result, it is possible to suppress axial deviation of the output shaft 2 a of the motor 2, and to suppress thermal expansion of the housing body 11 when the temperature of the inside of the housing body 11 becomes high due to the drive of the motor 2. Therefore, the vibration etc. which arise by the drive of the motor 2 can be reduced.

  Next, the configuration of the locking mechanism 40 for fixing the hanger 20 at the storage position and the withdrawal position will be described using FIGS. 2 and 3.

  As shown in FIGS. 2 and 3, in the recess 15 of the housing body 11, a pair of locking members 41 and 42 of the locking mechanism 40 are disposed. The locking mechanism 40 includes locking members 41 and 42 and locking notches 28 a and 29 a provided on the step portions 28 and 29 of the hanger 20. That is, when the locking members 41 and 42 respectively engage with the locking notches 28 a and 29 a provided in the step portions 28 and 29 of the hanger 20, the hanger 20 with respect to the housing main body 11 It is fixed at a predetermined position.

  The locking members 41 and 42 are plate springs formed by bending an elongated plate-like member. Specifically, the locking members 41 and 42 are respectively located at the central portion in the longitudinal direction and at the mounting portions 41a and 42a bent in a semicircular shape in the thickness direction, and at both end portions in the longitudinal direction and The mounting portions 41a and 42a have engaging portions 41b, 41c, 42b and 42c bent to the opposite side in the thickness direction. That is, the engaging portions 41 b and 41 c are provided at both longitudinal end portions of the locking member 41, and the longitudinal end portions of the locking member 42 are engaged with each other. The parts 42b and 42c are provided. The engaging portions 41b, 41c, 42b and 42c are formed in an arc shape so that the tip end portions can be engaged with the locking notches 28a and 29a of the hanger 20.

  The attachment portions 41 a and 42 a of the locking members 41 and 42 are respectively disposed in the fixed support portions 15 f and 15 g provided in the recess 15 of the housing main body portion 11. The fixed support portions 15f and 15g each have a groove formed in an arc shape when the housing main body portion 11 is viewed from the side.

  Specifically, in the central portion of the fixed support portions 15f and 15g in the rotational axis direction in the recess 15 of the housing main body 11, an arc shaped groove is in the width direction of the recess 15 (the circumferential direction of the side surface of the housing It is provided to be convex toward the center of). By arranging the mounting portions 41a and 42a of the locking members 41 and 42 with respect to the fixed support portions 15f and 15g formed in this manner, the engaging portions 41b, 41c and 42b of the locking members 41 and 42 can be obtained. , 42c are disposed closer to the side surface of the recess 15 of the housing body 11 than the attachment portions 41a, 42a. The engaging portions 41b, 41c, 42b, 42c of the locking members 41, 42 are free ends displaceable in the thickness direction of the locking members 41, 42.

  When the locking notches 28a and 29a provided on the step portions 28 and 29 of the hanger 20 are positioned in the engaging portions 41b and 42b by arranging the locking members 41 and 42 as described above. The engaging portions 41b and 42b engage with the locking notches 28a and 29a, respectively. In addition, when the locking notches 28a and 29a provided in the step portions 28 and 29 of the hanger 20 are positioned at the engaging portions 41c and 42c, the engaging portions 41c and 42c are notches 28a. , 29a respectively.

  Specifically, when the hanger 20 is located at the storage position shown in FIG. 2, the engagement notch 41 is provided on the step 28 of the hanger 20. While engaging with the portion 28 a, the engaging portion 42 b of the locking member 42 engages with the locking notch portion 29 a provided in the step portion 29 of the hanger 20. On the other hand, when the hanger 20 is located at the drawing position shown in FIG. 3, the engaging portion 41 c of the locking member 41 engages with the locking notch portion 28 a of the hanger 20 and is locked. The engaging portion 42 c of the member 42 engages with the locking notch 29 a of the hanger 20.

  As a result, the hanger 20 can be fixed to the housing main body 11 at the storage position shown in FIG. 2 and the pull-out position shown in FIG. 3 by the locking members 41 and 42, respectively. As described above, the locking members 41 and 42 are each configured by a plate spring. Therefore, a state in which the engaging portions 41b and 42b of the locking members 41 and 42 are engaged with the locking notches 28a and 29a of the hanger 20, or the engaging portions 41c and 42c are notches 28a, Even when engaged with 29a, by sliding the hanger 20, the engaged state between the engaging portions 41b, 41c and the locking notches 28a, 29a, or the engaging portions 42b, 42c. It is possible to release the engagement with the

  With the above configuration, the hanger 20 can be positioned at the storage position and the drawer position by slidingly moving the hanger 20 mounted on a hook such as a carabiner with respect to the housing main body portion 11. As a result, the hanger 20 can be compactly stored in the recess 15 of the housing main body 11, and at the time of use, the hanger 20 can be easily pulled out with respect to the housing main body 11.

  Further, by providing the hanger 20 in the housing main body portion 11, as compared with the configuration in which a separate hanger is attached, it is possible to achieve compactness and strength improvement of the connecting portion between the hanger 20 and the housing main body portion 11 It can prevent that the problem at the time of attaching the implement 20 arises.

  Furthermore, with the above configuration, since the hanger 20 can be fixed at the storage position and the withdrawal position, the hanger 20 is on the storage position side in a state where the hanger 20 is pulled out from the housing main body 11 and used. It is possible to regulate sliding movement.

  The hanger 20 is accommodated in a recess 15 provided on the side surface of the housing body 11. Thereby, the hanger 20 can be compactly accommodated in the housing main body 11. That is, since the hanger 20 is accommodated in the recess 15 provided on the side surface of the housing main body 11, the hanger 20 can be suppressed from protruding outward of the housing body 11.

  The hanger 20 is curved along the side surface of the housing body 11. Thereby, the hanger 20 can be arranged more compactly with respect to the housing main body portion 11. Therefore, the enlargement of the rotary tool by the hanger 20 can be suppressed more reliably.

  The hangers 20 are disposed at a position opposite to each other across the housing body 11. Thus, the hangers 20 are positioned so as to sandwich the housing body 11 when the housing body 11 is viewed from the rotational axis direction, that is, on both sides of the housing body 11. Therefore, the hanger 20 can be easily attached to the hooking tool whether the worker is right-handed or left-handed.

  The impact driver 1 further includes locking members 41 and 42 for fixing the hanger 20 at the storage position stored in the recess 15 and for fixing at the pulled-out position pulled out from the recess 15.

  Thereby, the hanger 20 can be fixed to the storage position and the drawing position, respectively. Therefore, the hanger 20 can be prevented from sliding relative to the housing body 11 regardless of the operator's intention.

(Remove from carabiner)
Next, the operation in the case of removing the hanger 20 having the configuration as described above from the state of being attached to the carabiner 100 will be described using FIG. FIG. 8 is a view schematically showing a state of removing the hanger 20 from the carabiner 100. As shown in FIG.

  The carabiner 100 has a C-shaped main body portion 101 and a rod-shaped gate portion 102 rotatably connected to one end side of the main body portion 101. The gate portion 102 has a configuration in which the proximal end side is rotatably supported by the main body portion 101 inward of the main body portion 101, and the distal end side can be engaged with the other end side of the main body portion 101. The carabiner 100 is the same as a general configuration, and thus the detailed description is omitted.

  When removing the hanging tool 20 from the state where the hanging tool 20 is mounted on the carabiner 100, first, as shown in FIG. 8, of the pair of support portion main bodies 24 and 25 in the hanging tool 20 with respect to the gate portion 102. The first notch portion 24 a of the support portion main body 24 located outside the carabiner 100 is pressed and the gate portion 102 is slightly rotated inward of the main body portion 101.

  Then, by inserting the crank portion 24 c of the support main body portion 24 between the tip end portion of the gate portion 102 and the other end side of the main body portion 101, the second notch portion 24 b of the support main body portion 24 is made of the carabiner 100. The other end of the main body unit 101 is pressed.

  Thereby, the crank portion 24 c of the support main body portion 24 can be positioned between the tip end portion of the gate portion 102 and the other end portion of the main body portion 101. Then, by pushing the support main body portion 24 into the inside of the main body portion 101 of the carabiner 100 as it is, the mounting state of the hanger 20 on the carabiner 100 is released.

  As described above, when removing the hanger 20 from the state of being attached to the carabiner 100, the first notch 24a of the support body 24 of the hanger 20 is pressed against the gate 102 of the carabiner 100 to support the supporter Slippage of the main body 24 relative to the gate portion 102 can be suppressed. In addition, by pressing the second notch 24b of the support portion main body 24 of the hanger 20 against the other end of the main body portion 101 of the carabiner 100, the support main body portion 24 is prevented from sliding relative to the main body portion 101. be able to.

  Therefore, when the hanger 20 is removed from the carabiner 100 by providing the first notch 24a, 25a and the second notches 24b, 25b in the hanger 20, the hanger 20 slides on the carabiner 100. Can be prevented. Therefore, the hanger 20 can be easily removed from the carabiner 100.

(Fixing structure of lifting gear)
Next, the structure fixed to the housing main-body part 11 in the state which positioned the hanger 20 in the drawing-out position is demonstrated using FIG.9 and FIG.10. In addition, FIG. 9 is a figure which shows the side surface of the impact driver 1 in the state which removed the protector 6, the side cover 7, and the latching members 41 and 42. As shown in FIG. FIG. 10 is a view of the fixing member 50 as viewed from above. In FIG. 9, reference numeral 16 c is a step having the same configuration as the step 15 c of the recess 15.

  In the following description, the hanger 60 will be described, but the hanger 20 can be similarly fixed at the pulled-out position using the fixing member 50.

  As shown in FIG. 9, the hanger 60 is fixed by the fixing member 50 (fixing portion) at a position where it is pulled out with respect to the housing main body portion 11. The fixing member 50 is configured of, for example, a rod-like member. As shown in FIGS. 9 and 10, the fixing member 50 is bent in a C shape and has a shape in which both end portions are folded back. Specifically, the fixing member 50 includes a pair of folded portions 51 and 52 and a connecting portion 53 that connects the folded portions 51 and 52. The pair of folded portions 51 and 52 are bent to the same side with respect to the connecting portion 53.

  In the fixing member 50 having the above-described configuration, as shown in FIG. 9, the folded portions 51 and 52 respectively include the step portions 68 and 69 of the hanger 60 and the step portion 16 c of the recess 16 of the housing body 11. Mounted to the impact driver 1 so as to be sandwiched therebetween. At this time, the connecting portion 53 is positioned on the radially outer side of the housing body 11 with respect to the hanger 60. As a result, in order for the fixing member 50 to restrict the sliding movement of the hanger 60 into the recess 16 of the housing body 11, the hanger 60 is fixed at the pulled-out position.

  Therefore, with the above configuration, it is possible to prevent the hanger 60 from slidingly moving into the recess 16 of the housing body 11 by mistake.

  Note that the configuration for fixing the hanger 60 is not limited to the configuration using the fixing member 50 as described above, and for example, the hanger 60 may include the housing body 11, the protector 6, and the side cover 7 using bolts or pins. Alternatively, a restricting member may be attached between the connecting portion 23 and the housing main portion 11 at the pullout position of the hanger 60 to restrict the sliding movement.

  Further, the housing main body 11 may be provided with a projection which can be advanced and retracted in the radial direction of the housing main body 11 by a spring or the like. The projection is positioned radially inward when the hanger 60 is slidingly moved, and protrudes radially outward when the hanger 60 is at the drawing position. It is provided. Further, the protrusion is provided at a position at which the movement of the step portions 68 and 69 in the lifting device 60 to the storage position is restricted in a state where the lifting device 60 is positioned at the drawing position. The protrusion may have a claw shape or a pin shape.

  Furthermore, on the outer peripheral surface of the housing main body 11, switching can be made to a first position that restricts the sliding movement of the hanger 20 to the storage position and a second position that regulates the sliding movement of the hanger 60 to the storage position As a matter of course, a movable member that can move in the circumferential direction of the housing body 11 may be provided.

(Other embodiments)
As mentioned above, although embodiment of this invention was described, embodiment mentioned above is only an illustration for implementing this invention. Therefore, without being limited to the embodiment described above, the embodiment described above can be appropriately modified and implemented without departing from the scope of the invention.

  In the said embodiment, the hangers 20 and 60 are formed by bending a plate-shaped member. However, the hangers 20 and 60 may be formed by bending a rod-like member.

  In the said embodiment, the hanger 20 has the level | step-difference parts 28 and 29. As shown in FIG. However, the distance between the support portion main bodies 24 and 25 may be equal to the distance between the slide portions 26 and 27. That is, it is not necessary to provide a step part in the hanger 20. Further, the distance between the support portion main bodies 24 and 25 may be larger than the distance between the slide portions 26 and 27.

  In the embodiment, the grip 12 extends from the housing body 11 in the direction perpendicular to the rotation axis P, but the present invention is not limited to this. The grip 12 is disposed in the rotation axis direction with respect to the housing body 11 It is also good.

  In the said embodiment, the impact driver 1 is mentioned as an example as a rotary tool. However, as long as the drive part which rotates a tool is the structure accommodated in the housing main-body part 11, it may be a rotary tool of what kind of structure.

  The present invention is applicable to a rotary tool that applies a rotational force to a tool, such as an impact driver.

1 Impact driver 2 Motor (drive part)
2a Output shaft 4 Housing 8 Lifting mechanism 9 Hook part (fixed lifting device)
9a Hanging part 9b Fixing part 9c Concave part 11 Housing main body part 12 Grip part 13 Power supply attachment parts 15, 16 Concave part (accommodating part)
15c, 16c Stepped part 20, 60 Hanging tool 20a Hanging part 21, 22 Support part 23 Connecting part 24, 25 Support part main body 24a, 25a 1st notch 24b, 25b 2nd notch 24c, 25c Crank 26, 27 Slides 28, 29, 68, 69 Stepped portions 28a, 29a Locking notch 30 Holding member (holding portion)
40 Locking mechanism 41, 42 Locking member 41a, 42a Mounting portion 41b, 42b Engaging portion P Rotational axis

  The present invention relates to a rotary tool having a housing containing a drive for rotating a tool, and a hanger for suspending the housing.

  2. Description of the Related Art A rotary tool is known which has a housing in which a driving unit for rotating a tool is housed, and a hanger for suspending the housing. For example, Patent Document 1 discloses a configuration in which a mounting hook as a hanging tool is provided on a side wall extending to the tip end side of a grip portion in an electric power tool main body.

  Thereby, the attachment hook can be attached to a hook such as a carabiner having an openable / closable gate provided near the waist of the worker. Therefore, when the worker does not use the power tool, the power tool can be hooked on the waist belt of the worker, so that the work which does not require the power tool can be performed with both free hands.

  By the way, in the cylindrical main body portion of the electric power tool main body, a driving portion such as a motor for rotating the tool is accommodated. Therefore, the main body of the electric power tool is heavier than the grip. In such a configuration, when the hanging tool is provided on the tip side of the grip as in the configuration disclosed in Patent Document 1, the hanging tool is disposed near the waist of the worker In the mounted state, the heavy main body portion is located below the grip portion. Then, each time the heavy body swings, the operator feels that the user is pulled by the inertia force of the rotary tool. This kind of feeling is uncomfortable for some people.

  On the other hand, for example, Patent Document 2 discloses a hanging tool attached to a side surface of a motor unit of a power tool. In this hanger, the side body in contact with the side surface of the motor portion is a tip formed in a ring shape in which the upper member, the lower member, the upper member and the lower member are each extended forward. And a locking portion. The distal end locking portion is locked to the distal end portion of the motor portion. The upper and lower members are connected by bolts.

  Further, the hanging tool in Patent Document 2 includes a slide member which is slidably moved in the axial direction to the rear of the side body so as to be adjustable in length. The slide member is screwed to the side body in a state of being adjusted relative to the side body in accordance with the size of the power tool to which the hanger is attached. The rear of the slide member is hollow so as to be hung on the connection ring of the worker's work belt.

  On the rear side of the hanger in Patent Document 2, the side body and the slide member are fixed by a ring-shaped hose band.

  With the above-described configuration, in the configuration of Patent Document 2, the hanger can be attached to the motor portion of various power tools having different lengths and sizes. When the suspension with such a configuration is hooked on the operator's waist belt, the heavy motor part is located on the upper side and the grip part is located on the lower side. Therefore, in the case of the configuration of Patent Document 2, compared with the configuration disclosed in the above-mentioned Patent Document 1, the inertial force generated in the power tool when the power tool hooked on the waist belt of the worker shakes. Is small.

Patent No. 5416649 gazette Utility model registration 3134808 gazette

  By the way, like the configuration disclosed in Patent Document 2, the upper member and the lower member have an upper member, a lower member, and a distal end locking portion that is locked to the distal end portion of the motor portion. In a configuration in which the bolt is connected by a bolt, if the bolt is tightened too much, the motor part may be distorted, adversely affecting the electric parts such as the motor inside, or the axial center of the shaft part connecting the motor and the tool There is a possibility of shifting.

  An object of the present invention is to improve the rigidity of the housing main body portion so that the motor portion is less likely to be distorted, and to realize a configuration in which the tool can be rotated in a stable state by the drive portion.

  In order to achieve the above objective,
  The first invention is
  A driving unit that rotates a tool attached to one end side in the rotation axis direction;
  A housing having a cylindrical housing main body extending in the rotational axis direction of the drive unit so as to be able to receive the drive unit therein;
  A rotating tool equipped with
  The housing body portion is formed by joining a pair of partial housings divided by a predetermined dividing surface, and
  A housing fixing member fixed over the pair of partial housings is provided on the other end side in the rotation axis direction.

  Thereby, a pair of partial housings divided by a predetermined dividing surface can be firmly joined by the housing fixing member fixed over them, and the rigidity of the housing main body is improved, thus the rotary tool The overall stiffness can be improved and the drive makes it easier to rotate the tool in a stable manner.

  The second invention is
  The rotary tool of the first invention
  The housing fixing member has a holding portion along the outer peripheral surface of each partial housing in the cylindrically formed housing body portion.

  As a result, the partial housings can be easily joined more firmly by the holding portion, and the rigidity of the entire rotary tool can be further improved.

  According to the rotary tool according to the embodiment of the present invention, the rigidity of the housing main body portion is improved so that the motor portion is hardly distorted, and the configuration of the rotary tool can rotate the tool in a stable state by the drive portion. Is obtained.

FIG. 1 is a side view showing a schematic configuration of an impact driver according to an embodiment of the present invention. FIG. 2 is a perspective view of the impact driver as viewed obliquely from the rear with the protector and the side cover removed. FIG. 3: is the FIG. 2 equivalent view at the time of slidingly moving a hanger to a drawing-out position in the state which removed the protector and the side cover. FIG. 4 is a plan view of the hanger. FIG. 5 is a view of the hanger as viewed from the connecting portion side. FIG. 6 is a view of the holding member as viewed from the connecting portion side. FIG. 7 is a side view of the holding member as viewed from the side. Drawing 8 is a figure showing typically signs that a suspending tool is removed from a carabiner. FIG. 9 is a side view of the impact driver with the protector, the side cover, and the locking member removed. FIG. 10 is a plan view of the fixing member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the dimension of the structural member in each figure does not faithfully represent the dimension of an actual structural member, the dimensional ratio of each structural member, etc.

(overall structure)
FIG. 1 is a side view showing a schematic configuration of an impact driver 1 as a rotary tool according to an embodiment of the present invention. The impact driver 1 applies a rotational impact force to a bolt, a nut or the like by rotating a tool (not shown) called a bit attached to the anvil 3 by a rotational driving force obtained from the motor 2 (driving unit).

  In the following description, the left side in FIG. 1 is referred to as the front of the impact driver (hereinafter, also simply referred to as the front), and the right in FIG. 1 is referred to as the rear of the impact driver (hereinafter, also referred to as the only rear). The upper side in FIG. 1 is referred to as the upper side of the impact driver, and the lower side in FIG. 1 is referred to as the lower side of the impact driver. In addition, the description regarding the drive part of the impact driver 1 is abbreviate | omitted.

  The impact driver 1 includes a motor 2, a drive mechanism (not shown) driven by the motor 2, a housing 4 for housing the motor 2 and the drive mechanism, a front cover 5, a protector 6, a side cover 7, and a hanger. It comprises a mechanism 8, a hook 9 and a (fixed hanger). The motor 2 has an output shaft 2a that transmits rotational drive force to the drive mechanism. In FIG. 1, reference symbol P is a rotation axis of the motor 2. Detailed description of the configuration of the motor 2 and the drive mechanism is omitted.

  The housing 4 has a housing body 11, a grip 12 and a power supply attachment 13. The housing 4 is configured by combining the right housing 4a and the left housing 4b (see FIG. 2). That is, the housing 4 has a configuration divided into right and left as viewed in the axial direction of the rotation axis line P of the motor 2 (hereinafter referred to as the rotation axis direction). By combining the right housing 4a and the left housing 4b, the housing body 11, the grip 12 and the power supply attachment 13 are formed.

  The housing body portion 11 is formed in a cylindrical shape extending in the rotational axis direction of the motor 2. Inside the housing body 11, the motor 2 and the drive mechanism are accommodated.

  An opening (not shown) is provided at the front end of the housing main body 11, and the anvil 3 projects forward in the direction of the rotation axis in the opening. As shown in FIG. 1, the front end portion of the housing body 11 is covered by the front cover 5 in a state where the anvil 3 is inserted through the opening.

  The rear end portion of the housing main body portion 11 is covered by the protector 6 in a state where a holding member 30 (holding portion) of the hanger mechanism 8 described later is attached.

  Recesses 15 and 16 for arranging the pair of hangers 20 and 60 of the hanger mechanism 8 are respectively formed on the left and right sides of the side surface of the housing main body 11 when viewed from the direction of the rotation axis (FIG. 2 , FIG. 3, FIG. 9). That is, the pair of hangers 20 and 60 are disposed on the left and right sides of the side surface of the housing body 11. Side covers 7 are disposed on the left and right sides of the side surface of the housing body 11 so as to cover the hangers 20 and 60.

  As described above, by arranging the pair of suspending devices 20, 60 on the left and right sides of the housing main body portion 11, the operator can select the pair of suspending devices by either the left handed operator or the right handed worker. It becomes possible to attach one of 20 and 60 to the fastener.

  The configurations of the recesses 15 and 16 provided in the housing main body 11 are the same, and the configurations of the hangers 20 and 60 are the same. Therefore, in the following description, the recess 15 formed on the side surface of the housing body 11 and Only the configuration of the hanger 20 disposed in the recess 15 will be described.

  The recessed part 15 formed in the side of the housing main-body part 11 is formed in the shape which can accommodate the hanger 20 so that it may mention later. That is, the recess 15 is capable of storing the wide first recess 15 a capable of storing the support portion main bodies 24 and 25 described later of the hanger 20 and the slide portions 26 and 27 and is narrower than the first recess 15 a. And a second recess 15b (see FIG. 3).

  As shown in FIG. 1, the grip portion 12 is a portion to be gripped by an operator, and extends from the housing body portion 11 in a direction (predetermined direction) orthogonal to the rotation axis P. In FIG. 1, the grip 12 extends downward from the housing body 11. The grip portion 12 is provided with a trigger switch 12 a for controlling the driving of the motor 2 such as ON / OFF.

  The power supply mounting portion 13 is provided on the opposite side of the grip portion 12 to the housing body portion 11. In FIG. 1, the power supply mounting portion 13 is provided below the grip portion 12. The power supply attachment portion 13 is configured to be connectable to a battery B that supplies power to the impact driver 1. The power supply mounting portion 13 is formed in a plate shape extending in the front, rear, left, and right directions of the impact driver 1 so as to cover a part of the upper portion of the battery B.

  The housing body 11, the grip 12, and the power supply attachment 13 having the above-described configuration are integrally formed.

  The hook portion 9 is attached to a hooking tool such as a carabiner attached to the waist or the like of the worker. The hook portion 9 has an annular hanging portion 9a and a fixing portion 9b, and the fixing portion 9b is attached by a screw to the side of the power supply mounting portion 13 so that the hanging portion 9a protrudes to the rear of the impact driver 1 ing. At least the outer peripheral side of the hook portion 9 is bent in the thickness direction. Specifically, the hook portion 9 is bent in the thickness direction on the inner peripheral side and the outer peripheral side of the hanging portion 9a, and is also bent in the thickness direction on the outer peripheral side of the fixing portion 9b. Thereby, the rigidity of the hook portion can be improved as compared with the case where the hook portion is formed by a flat plate, and the strength of the hook portion can be improved.

  In the hook portion 9, the hanging portion 9a is attached to the hooking tool. Therefore, when the hook portion 9 is attached to the hooking tool, the power supply attaching portion 13 is positioned on the upper side, and the housing main body portion 11 in which the motor 2 and the drive mechanism are accommodated is heavy. Located on the side.

  The hanging portion 9a is formed in an annular shape having an oval hole. The hanging portion 9a is formed with a recessed portion 9c which is recessed in the thickness direction of the hanging portion 9a at a central portion in the long axis direction. The recessed part 9c is provided in two places of the short axis direction in the suspending part 9a.

  By providing the recess 9c, the hanging portion 9a can be easily attached to and detached from the hook. That is, by applying the recess 9 c to, for example, the gate portion of the carabiner, the hanging portion 9 a is less likely to slip relative to the gate portion. Therefore, attachment or detachment of the suspension part 9a with respect to a latching tool becomes easy.

  The hook portion 9 is attached to the power supply attachment portion 13 in a state of being obliquely inclined with respect to the vertical direction of the impact driver 1. Thus, the hanging portion 9a can be easily attached to and detached from the hook.

  Further, a step is formed between the suspending portion 9 a and the fixing portion 9 b so that the suspending portion 9 a is separated from the power supply attaching portion 13. Thus, the hanging portion 9 a can be separated from the housing 4 of the impact driver 1. Thus, the hanging portion 9a can be easily attached to and detached from the hook.

(Hanger mechanism)
Next, the configuration of the hanger mechanism 8 disposed in the housing body 11 will be described with reference to FIGS. 1 to 7. FIG. 2 is a perspective view of the impact driver 1 as viewed obliquely from the rear. FIG. 3: is the FIG. 1 equivalent view in the state which slid the hanger 20 to the drawing | extracting position. 2 and 3 show the impact driver 1 with the protector 6 and the side cover 7 removed for the sake of explanation.

  The hanger mechanism 8 is configured such that the hanger 20 can slide in the rotational axis direction of the motor 2 with respect to the housing body 11. The hanging tool 20 has a hanging portion 20a capable of mounting the hanging tool 20 on a hook in a state of being pulled out from the housing main body 11 (see FIG. 3). Thereby, the impact driver 1 can be suspended by the hook.

  As shown in FIGS. 2 and 3, the hanger mechanism 8 holds the hanger 20 disposed slidably on the side surface of the housing main body 11 and a holder for holding the hanger 20 on the housing body 11. A member 30 (holding portion) and a locking mechanism 40 for fixing the hanger 20 at the storage position and the pull-out position, respectively, are provided.

  The top view of the hanger 20 is shown in FIG. The figure which looked at the hanger 20 in FIG. 5 from the connection part side is shown.

  As shown in FIG. 4, the hanger 20 is formed in a U-shape in plan view. In addition, the hanger 20 is formed by bending a plate-like member. That is, the hanger 20 is a U-shaped plate member in plan view.

  The hanger 20 includes a pair of support portions 21 and 22 extending in one direction, and a connection portion 23 connecting the support portions 21 and 22 at one end. The hanger 20 has a symmetrical shape about a line connecting intermediate points of the pair of support portions 21 and 22. As described above, the symmetrical shape of the hangers 20 allows the pair of hangers 20 and 60 having the same configuration for right-handed and left-handed users to be disposed on the left and right sides of the housing body 11. Therefore, the production cost of the hanger 20 can be reduced.

  The hanger 20 is disposed along the side surface of the housing main body 11 so that the connecting portion 23 is located on the outer side of the housing main body 11 in the rotational axis direction of the motor 2. Thereby, the hanger 20 can be compactly arranged with respect to the housing main body 11. Therefore, the enlargement of the impact driver 1 can be suppressed.

  The pair of support portions 21 and 22 are inclined such that the inward side portion of the hanger 20 is positioned on one side in the thickness direction compared to the outward side portion when viewed from the connection portion 23 side, It is connected by the connection part 23. That is, in a state where the hanger 20 is disposed on the side surface of the cylindrical housing main body portion 11, the pair of support portions 21 and 22 are provided along the side surface as viewed from the rotational axis direction of the motor 2 There is. Therefore, the hanger 20 is curved along the side surface of the housing main body 11 as viewed from the connecting portion 23 side. With the configuration of such a hanger 20, the hanger 20 can be disposed more compactly with respect to the housing main body 11. Therefore, the enlargement of the impact driver 1 can be suppressed more reliably.

  The pair of support portions 21 and 22 includes the support portion main bodies 24 and 25 positioned on the one end side, that is, the connection portion 23 side, and the slide portions 26 and 27 positioned on the other end side. The distance between the slide parts 26 and 27 is smaller than the distance between the support parts 24 and 25. Thus, the pair of support portions 21 and 22 have the step portions 28 and 29 between the support portion bodies 24 and 25 and the slide portions 26 and 27, respectively.

  As described above, by providing the slide portions 26 and 27 having a narrower interval than the support portion main bodies 24 and 25 positioned on the connection portion 23 side in the pair of support portions 21 and 22, as described later, the slide portions Even in the case where the projecting portions 26a and 27a that project in the width direction (the circumferential direction of the housing main body portion 11) are provided at 26 and 27, the hanger 20 can be made compact. Further, as described above, since the step portions 28 and 29 are formed between the support portion main bodies 24 and 25 and the slide portions 26 and 27, respectively, as described later, the step portions 28 and 29 are suspended Can be used as a regulating mechanism that regulates the slide movement of the

  Here, as shown in FIG. 3, the housing main body 11 is formed with a recess 15 capable of accommodating the support portions 21 and 22 of the hanger 20 on both sides (left and right of the side) of the side across the rotation axis P. ing. The concave portion 15 accommodates the first concave portion 15 a capable of accommodating the support main bodies 24 and 25 of the support portions 21 and 22 and having a large dimension in the width direction (the circumferential direction of the housing main body 11) and the slide portions 26 and 27. And a second recess 15b smaller in size than the first recess 15a.

  A stepped portion 15c (contact portion) is formed between the first recess 15a and the second recess 15b. When the hanger 20 is accommodated in the recess 15 as shown in FIG. 2, the steps 28 and 29 of the support portions 21 and 22 abut the step 15 c. Therefore, the step portion 15c of the recess 15 and the step portions 28, 29 of the support portions 21, 22 are regulated so that the hanger 20 does not move closer to the anvil 3 than the storage position (the position shown in FIG. 2).

  In the second recess 15b, grooves 15d extending in the rotational axis direction of the motor 2 are formed on both side surfaces in the width direction (the circumferential direction of the housing body 11) constituting the second recess 15b. In the groove 15d, protrusions 26a, 27a of slide portions 26, 27 described later are positioned.

  As shown in FIGS. 2 and 3, the housing body 11 is provided with a bulging portion 15e on the rear side of the second recess 15b, that is, on the opposite side of the second recess 15b to the anvil 3 . The bulging portion 15 e is provided at a central portion in the width direction (the circumferential direction of the housing main body portion 11) on the rear side of the second concave portion 15 b. The bulging portion 15 e is formed so that the dimension in the width direction is larger than the distance between the slide portions 26 and 27 in the pair of support portions 21 and 22.

  As a result, in the second recess 15 b, a space through which only the support portions 21 and 22 can pass is formed between the side surface defining the second recess 15 b and the bulging portion 15 e. Therefore, when the hanger 20 is pulled out with respect to the housing main body 11, the inward side portion of the hanger 20 in the step portions 28 and 29 of the pair of support portions 21 and 22 abuts on the bulging portion 15e. Thus, the step portions 28 and 29 and the bulging portion 15 e of the pair of support portions 21 and 22 restrict the sliding movement of the hanger 20 in the pulling direction.

  The slide portions 26 and 27 are connected to the support portion bodies 24 and 25 at one end respectively, and toward the other side in the width direction of the hanger 20 (the circumferential direction of the housing main portion 11). It has projecting part 26a, 27a which protrudes.

  The protrusions 26 a and 27 a are disposed in grooves 15 d provided on both sides of the second recess 15 b of the housing main body 11, and move in the grooves 15 d in the rotational axis direction of the motor 2. That is, the slide portions 26 and 27 are disposed slidably in the direction of the rotation axis in the second recess 15 b formed in the housing main body 11.

  With the configuration of the slide parts 26 and 27 described above, the hanger 20 can slide between the housing position shown in FIG. 2 and the drawing position shown in FIG. 3 with respect to the housing main body 11.

  In the slide portions 26 and 27, the dimension in the width direction in the vicinity of the projecting portions 26a and 27a is smaller than the dimension in the width direction of the other portions.

  In the support main bodies 24 and 25, the hanging parts 20 a together with the connecting parts 23 in a state where the hanger 20 is positioned at the drawing position shown in FIG. 3 by sliding movement of the slide parts 26 and 27 in the second recess 15 b. Configure

  The support main bodies 24 and 25 are provided with trapezoidal first cutouts 24 a and 25 a on the inner side of the hanger 20 on one end side (connection part 23 side). Further, in the support portion main bodies 24 and 25, second cutout portions 24 b and 25 b cut out in a trapezoidal shape are provided on the outer side of the hanger 20 on the other end side than the first cutout portions 24 a and 25 a. It is provided.

  With the above configuration, the support main bodies 24 and 25 have a crank shape so that the distance between the support main bodies 24 and 25 is reduced by the first notches 24a and 25a and the second notches 24b and 25b. The crank parts 24c and 25c which were bent in the above are formed. As described later, when the hanger 20 is removed from the carabiner, which is a hook, the cranks 24c and 25c enter between the gate portion of the carabiner and the main body. This allows the operator to pry open the carabiner gate with one hand.

  The first notches 24a and 25a have a longer notch length than the second notches 24b and 25b.

  In the present embodiment, the first notches 24a, 25a and the second notches 24b, 25b are respectively notched in a trapezoidal shape, and the first notches 24a, 25a are second notches. The notch length is longer than 24b and 25b. However, the shapes of the first notches 24a and 25a and the second notches 24b and 25b may be any shape as long as the operator can open the carabiner gate with one hand. The length of each notch may be any length.

  As shown in FIG. 2, when the hanger 20 is positioned at the storage position in the recess 15 of the housing main body 11 as shown in FIG. 2, the outer side portion of the hanger 20 is the step 15 c of the recess 15. Abut on. On the other hand, when the hanger 20 is positioned at the drawing position as shown in FIG. 3, the inward side portion of the hanger 20 in the step portions 28 and 29 is in the bulging portion 15 e provided in the housing main body 11. Abut. Therefore, the step portions 28 and 29 function as part of a restriction mechanism that restricts the slide movement of the hanger 20.

  As shown in FIG. 4, the stepped portions 28 and 29 respectively have locking notches 28 a and 29 a on the inward side of the hanger 20. The locking notches 28a and 29a are each formed in a semicircular shape. Locking members 41 and 42 of a locking mechanism 40 described later engage with the locking notches 28a and 29a, respectively. As will be described in detail later, the locking members 41 and 42 respectively engage with the locking notches 28a and 29a when the hanger 20 is positioned at the storage position and the pulling-out position. Thereby, the hanger 20 can be fixed at the accommodation position and the withdrawal position.

  The connection portion 23 connects one end sides of the pair of support portions 21 and 22 to each other. The connection portion 23 is formed to extend in the thickness direction with respect to the pair of support portions 21 and 22. That is, the hanger 20 has a shape in which the connecting portion 23 is bent in the thickness direction with respect to the pair of support portions 21 and 22. By forming the connecting portion 23 in such a shape, the hanger 20 can be made compact in the longitudinal direction as compared with a configuration in which the connecting portion 23 is not bent, and the rigidity of the hanger 20 can be improved. Can.

  The figure which looked at the hanger 20 in FIG. 5 from the connection part 23 side is shown. As shown in FIG. 5, the connecting portion 23 is provided to connect the pair of supporting portions 21 and 22 arranged in an inclined state as described above. That is, the connection part 23 is formed in a substantially trapezoidal shape as viewed from the thickness direction.

  The connecting portion 23 is provided with a semicircular notch portion 23 a at a portion connecting the inward sides of the hanger 20 in the pair of support portions 21 and 22. By providing the cutaway portion 23a, it is possible to prevent the connecting portion 23 from slipping on the carabiner when attaching the hanger 20 to the carabiner, as described later.

  The connection portions 20b and 20c between the connection portion 23 and the pair of support portions 21 and 22 have an R portion formed of a smooth curved surface on the outer side. Thereby, when removing the hanger 20 with which the fastener was mounted | worn, it can prevent that the connection parts 20b and 20c of the hanger 20 interfere with a fastener. Therefore, the hanger 20 can be easily removed from the fastener.

  Next, the configuration of the holding member 30 will be described with reference to FIGS. 6 is a view of the holding member 30 as viewed from the connecting portion 32 side (the rear side of the impact driver 1), and FIG. 7 is a side view of the holding member 30 as viewed from the side of the impact driver 1.

  The holding member 30 holds the pair of hangers 20 and 60 on the housing body 11. Specifically, a plurality of (four in the present embodiment) holding portions 31 disposed on the side surface of the housing body portion 11 in a state where the holding member 30 is mounted on the housing body portion 11, and the holding portions 31 And a connecting portion 32 connecting the two. The holding member 30 is formed of a plate-like member in which the holding portion 31 and the connecting portion 32 are integrally formed. The holding portion 31 is configured by bending the plate-like member in the thickness direction.

  Each of the plurality of holding portions 31 is curved along the side surface of the housing body portion 11. In the holding member 30, with the holding member 30 attached to the rear end portion of the housing main body 11, the two holding portions 31 among the plurality of holding portions 31 are arranged on the side surface of the housing main body 11. It is formed so that it may be located in the opposite position on either side of. In the case of the present embodiment, since the holding member 30 has the four holding portions 31, the four holding portions 31 hold the housing body portion 11 from four directions.

  The plurality of holding portions 31 includes the pair of hangers 20 and 60 disposed on the side surface of the housing body portion 11 in a state where the holding member 30 is attached to the rear end portion of the housing body portion 11. Hold from the radial direction of the Thus, the pair of hangers 20 and 60 can slide in the direction of the rotational axis of the motor 2 with respect to the housing main body portion 11, while restricting the movement of the housing main body portion 11 in the radial direction.

  The connecting portion 32 is formed to extend in the radial direction of the housing main body 11 in a state where the holding member 30 is attached to the rear end portion of the housing main body 11. A pair of holding parts 31 is provided at both ends of the connecting part 32 respectively. The connecting portion 32 is provided with a through hole 33 through which a screw for fixing the holding member 30 to the housing body portion 11 is inserted between the pair of holding portions 31 at both end portions.

  By attaching the holding member 30 having the above-described configuration to the rear end portion of the housing main body 11, the rigidity of the housing main body 11 can be improved. That is, since the holding member 30 can radially hold the rear end portion of the housing body 11 constituted by the right housing 4a and the left housing 4b, the right housing 4a and the left housing 4b are more firmly connected. can do. As a result, it is possible to suppress axial deviation of the output shaft 2 a of the motor 2, and to suppress thermal expansion of the housing body 11 when the temperature of the inside of the housing body 11 becomes high due to the drive of the motor 2. Therefore, the vibration etc. which arise by the drive of the motor 2 can be reduced.

  Next, the configuration of the locking mechanism 40 for fixing the hanger 20 at the storage position and the withdrawal position will be described using FIGS. 2 and 3.

  As shown in FIGS. 2 and 3, in the recess 15 of the housing body 11, a pair of locking members 41 and 42 of the locking mechanism 40 are disposed. The locking mechanism 40 includes locking members 41 and 42 and locking notches 28 a and 29 a provided on the step portions 28 and 29 of the hanger 20. That is, when the locking members 41 and 42 respectively engage with the locking notches 28 a and 29 a provided in the step portions 28 and 29 of the hanger 20, the hanger 20 with respect to the housing main body 11 It is fixed at a predetermined position.

  The locking members 41 and 42 are plate springs formed by bending an elongated plate-like member. Specifically, the locking members 41 and 42 are respectively located at the central portion in the longitudinal direction and at the mounting portions 41a and 42a bent in a semicircular shape in the thickness direction, and at both end portions in the longitudinal direction and The mounting portions 41a and 42a have engaging portions 41b, 41c, 42b and 42c bent to the opposite side in the thickness direction. That is, the engaging portions 41 b and 41 c are provided at both longitudinal end portions of the locking member 41, and the longitudinal end portions of the locking member 42 are engaged with each other. The parts 42b and 42c are provided. The engaging portions 41b, 41c, 42b and 42c are formed in an arc shape so that the tip end portions can be engaged with the locking notches 28a and 29a of the hanger 20.

  The attachment portions 41 a and 42 a of the locking members 41 and 42 are respectively disposed in the fixed support portions 15 f and 15 g provided in the recess 15 of the housing main body portion 11. The fixed support portions 15f and 15g each have a groove formed in an arc shape when the housing main body portion 11 is viewed from the side.

  Specifically, in the central portion of the fixed support portions 15f and 15g in the rotational axis direction in the recess 15 of the housing main body 11, an arc shaped groove is in the width direction of the recess 15 (the circumferential direction of the side surface of the housing It is provided to be convex toward the center of). By arranging the mounting portions 41a and 42a of the locking members 41 and 42 with respect to the fixed support portions 15f and 15g formed in this manner, the engaging portions 41b, 41c and 42b of the locking members 41 and 42 can be obtained. , 42c are disposed closer to the side surface of the recess 15 of the housing body 11 than the attachment portions 41a, 42a. The engaging portions 41b, 41c, 42b, 42c of the locking members 41, 42 are free ends displaceable in the thickness direction of the locking members 41, 42.

  When the locking notches 28a and 29a provided on the step portions 28 and 29 of the hanger 20 are positioned in the engaging portions 41b and 42b by arranging the locking members 41 and 42 as described above. The engaging portions 41b and 42b engage with the locking notches 28a and 29a, respectively. In addition, when the locking notches 28a and 29a provided in the step portions 28 and 29 of the hanger 20 are positioned at the engaging portions 41c and 42c, the engaging portions 41c and 42c are notches 28a. , 29a respectively.

  Specifically, when the hanger 20 is located at the storage position shown in FIG. 2, the engagement notch 41 is provided on the step 28 of the hanger 20. While engaging with the portion 28 a, the engaging portion 42 b of the locking member 42 engages with the locking notch portion 29 a provided in the step portion 29 of the hanger 20. On the other hand, when the hanger 20 is located at the drawing position shown in FIG. 3, the engaging portion 41 c of the locking member 41 engages with the locking notch portion 28 a of the hanger 20 and is locked. The engaging portion 42 c of the member 42 engages with the locking notch 29 a of the hanger 20.

  As a result, the hanger 20 can be fixed to the housing main body 11 at the storage position shown in FIG. 2 and the pull-out position shown in FIG. 3 by the locking members 41 and 42, respectively. As described above, the locking members 41 and 42 are each configured by a plate spring. Therefore, a state in which the engaging portions 41b and 42b of the locking members 41 and 42 are engaged with the locking notches 28a and 29a of the hanger 20, or the engaging portions 41c and 42c are notches 28a, Even when engaged with 29a, by sliding the hanger 20, the engaged state between the engaging portions 41b, 41c and the locking notches 28a, 29a, or the engaging portions 42b, 42c. It is possible to release the engagement with the

  With the above configuration, the hanger 20 can be positioned at the storage position and the drawer position by slidingly moving the hanger 20 mounted on a hook such as a carabiner with respect to the housing main body portion 11. As a result, the hanger 20 can be compactly stored in the recess 15 of the housing main body 11, and at the time of use, the hanger 20 can be easily pulled out with respect to the housing main body 11.

  Further, by providing the hanger 20 in the housing main body portion 11, as compared with the configuration in which a separate hanger is attached, it is possible to achieve compactness and strength improvement of the connecting portion between the hanger 20 and the housing main body portion 11 It can prevent that the problem at the time of attaching the implement 20 arises.

  Furthermore, with the above configuration, since the hanger 20 can be fixed at the storage position and the withdrawal position, the hanger 20 is on the storage position side in a state where the hanger 20 is pulled out from the housing main body 11 and used. It is possible to regulate sliding movement.

  The hanger 20 is accommodated in a recess 15 provided on the side surface of the housing body 11. Thereby, the hanger 20 can be compactly accommodated in the housing main body 11. That is, since the hanger 20 is accommodated in the recess 15 provided on the side surface of the housing main body 11, the hanger 20 can be suppressed from protruding outward of the housing body 11.

  The hanger 20 is curved along the side surface of the housing body 11. Thereby, the hanger 20 can be arranged more compactly with respect to the housing main body portion 11. Therefore, the enlargement of the rotary tool by the hanger 20 can be suppressed more reliably.

  The hangers 20 are disposed at a position opposite to each other across the housing body 11. Thus, the hangers 20 are positioned so as to sandwich the housing body 11 when the housing body 11 is viewed from the rotational axis direction, that is, on both sides of the housing body 11. Therefore, the hanger 20 can be easily attached to the hooking tool whether the worker is right-handed or left-handed.

  The impact driver 1 further includes locking members 41 and 42 for fixing the hanger 20 at the storage position stored in the recess 15 and for fixing at the pulled-out position pulled out from the recess 15.

  Thereby, the hanger 20 can be fixed to the storage position and the drawing position, respectively. Therefore, the hanger 20 can be prevented from sliding relative to the housing body 11 regardless of the operator's intention.

(Remove from carabiner)
Next, the operation in the case of removing the hanger 20 having the configuration as described above from the state of being attached to the carabiner 100 will be described using FIG. FIG. 8 is a view schematically showing a state of removing the hanger 20 from the carabiner 100. As shown in FIG.

  The carabiner 100 has a C-shaped main body portion 101 and a rod-shaped gate portion 102 rotatably connected to one end side of the main body portion 101. The gate portion 102 has a configuration in which the proximal end side is rotatably supported by the main body portion 101 inward of the main body portion 101, and the distal end side can be engaged with the other end side of the main body portion 101. The carabiner 100 is the same as a general configuration, and thus the detailed description is omitted.

  When removing the hanging tool 20 from the state where the hanging tool 20 is mounted on the carabiner 100, first, as shown in FIG. 8, of the pair of support portion main bodies 24 and 25 in the hanging tool 20 with respect to the gate portion 102. The first notch portion 24 a of the support portion main body 24 located outside the carabiner 100 is pressed and the gate portion 102 is slightly rotated inward of the main body portion 101.

Then, by inserting the crank portion 24 c of the support portion main body 24 between the tip end portion of the gate portion 102 and the other end side of the main body portion 101, the second notch portion 24 b of the support portion main body 24 of the carabiner 100 is The other end of the main body unit 101 is pressed.

Thereby, the crank portion 24 c of the support portion main body 24 can be positioned between the tip end portion of the gate portion 102 and the other end portion of the main body portion 101. Then, by pushing the support portion main body 24 into the inside of the main body portion 101 of the carabiner 100 as it is, the attachment state of the hanger 20 to the carabiner 100 is released.

As described above, when removing the hanger 20 from the state of being attached to the carabiner 100, the first notch 24a of the support body 24 of the hanger 20 is pressed against the gate 102 of the carabiner 100 to support the supporter Slippage of the main body 24 relative to the gate portion 102 can be suppressed. Further, by pressing the second notch 24b of the support main body 24 of the hanger 20 against the other end of the main body 101 of the carabiner 100, the support main body 24 is prevented from slipping relative to the main body 101. be able to.

  Therefore, when the hanger 20 is removed from the carabiner 100 by providing the first notch 24a, 25a and the second notches 24b, 25b in the hanger 20, the hanger 20 slides on the carabiner 100. Can be prevented. Therefore, the hanger 20 can be easily removed from the carabiner 100.

(Fixing structure of lifting gear)
Next, the structure fixed to the housing main-body part 11 in the state which positioned the hanger 20 in the drawing-out position is demonstrated using FIG.9 and FIG.10. In addition, FIG. 9 is a figure which shows the side surface of the impact driver 1 in the state which removed the protector 6, the side cover 7, and the latching members 41 and 42. As shown in FIG. FIG. 10 is a view of the fixing member 50 as viewed from above. In FIG. 9, reference numeral 16 c is a step having the same configuration as the step 15 c of the recess 15.

  In the following description, the hanger 60 will be described, but the hanger 20 can be similarly fixed at the pulled-out position using the fixing member 50.

  As shown in FIG. 9, the hanger 60 is fixed by the fixing member 50 (fixing portion) at a position where it is pulled out with respect to the housing main body portion 11. The fixing member 50 is configured of, for example, a rod-like member. As shown in FIGS. 9 and 10, the fixing member 50 is bent in a C shape and has a shape in which both end portions are folded back. Specifically, the fixing member 50 includes a pair of folded portions 51 and 52 and a connecting portion 53 that connects the folded portions 51 and 52. The pair of folded portions 51 and 52 are bent to the same side with respect to the connecting portion 53.

  In the fixing member 50 having the above-described configuration, as shown in FIG. 9, the folded portions 51 and 52 respectively include the step portions 68 and 69 of the hanger 60 and the step portion 16 c of the recess 16 of the housing body 11. Mounted to the impact driver 1 so as to be sandwiched therebetween. At this time, the connecting portion 53 is positioned on the radially outer side of the housing body 11 with respect to the hanger 60. As a result, in order for the fixing member 50 to restrict the sliding movement of the hanger 60 into the recess 16 of the housing body 11, the hanger 60 is fixed at the pulled-out position.

  Therefore, with the above configuration, it is possible to prevent the hanger 60 from slidingly moving into the recess 16 of the housing body 11 by mistake.

  Note that the configuration for fixing the hanger 60 is not limited to the configuration using the fixing member 50 as described above, and for example, the hanger 60 may include the housing body 11, the protector 6, and the side cover 7 using bolts or pins. Alternatively, a restricting member may be attached between the connecting portion 23 and the housing main portion 11 at the pullout position of the hanger 60 to restrict the sliding movement.

  Further, the housing main body 11 may be provided with a projection which can be advanced and retracted in the radial direction of the housing main body 11 by a spring or the like. The projection is positioned radially inward when the hanger 60 is slidingly moved, and protrudes radially outward when the hanger 60 is at the drawing position. It is provided. Further, the protrusion is provided at a position at which the movement of the step portions 68 and 69 in the lifting device 60 to the storage position is restricted in a state where the lifting device 60 is positioned at the drawing position. The protrusion may have a claw shape or a pin shape.

  Furthermore, on the outer peripheral surface of the housing main body 11, switching can be made to a first position that restricts the sliding movement of the hanger 20 to the storage position and a second position that regulates the sliding movement of the hanger 60 to the storage position As a matter of course, a movable member that can move in the circumferential direction of the housing body 11 may be provided.

(Other embodiments)
As mentioned above, although embodiment of this invention was described, embodiment mentioned above is only an illustration for implementing this invention. Therefore, without being limited to the embodiment described above, the embodiment described above can be appropriately modified and implemented without departing from the scope of the invention.

  In the said embodiment, the hangers 20 and 60 are formed by bending a plate-shaped member. However, the hangers 20 and 60 may be formed by bending a rod-like member.

  In the said embodiment, the hanger 20 has the level | step-difference parts 28 and 29. As shown in FIG. However, the distance between the support portion main bodies 24 and 25 may be equal to the distance between the slide portions 26 and 27. That is, it is not necessary to provide a step part in the hanger 20. Further, the distance between the support portion main bodies 24 and 25 may be larger than the distance between the slide portions 26 and 27.

  In the embodiment, the grip 12 extends from the housing body 11 in the direction perpendicular to the rotation axis P, but the present invention is not limited to this. The grip 12 is disposed in the rotation axis direction with respect to the housing body 11 It is also good.

  In the said embodiment, the impact driver 1 is mentioned as an example as a rotary tool. However, as long as the drive part which rotates a tool is the structure accommodated in the housing main-body part 11, it may be a rotary tool of what kind of structure.

  (Other reference items)
  Hereinafter, the referential matter regarding the said embodiment is demonstrated.

  The rotary tool according to the embodiment includes a drive unit for rotating the tool, a housing main body portion formed in a cylindrical shape extending in the rotation axis direction of the drive unit so as to be able to accommodate the drive unit therein, and A housing having a grip extending in a predetermined direction from the housing main body, and a suspending portion capable of suspending the housing, the end of the housing main body in the rotational axis direction facing the housing main body And a hanging member slidably provided in the rotational axis direction. The housing main body portion is provided with an accommodating portion capable of accommodating the hanger and capable of sliding the hanger in the rotational axis direction (first configuration).

  Thus, the rotating tool can be suspended by the hanger provided at the end in the direction of the rotation axis of the housing main body in which the driving unit for rotating the tool is accommodated. The hanger is slidably housed in the housing portion provided in the housing main body in the rotation axis direction. Therefore, it is not necessary to attach a separate hanger to the housing main body, and a problem such as the configuration disclosed in Patent Document 2 described above does not occur.

  That is, by providing the hanger in the housing main body, as compared with the configuration disclosed in Patent Document 2 for attaching the separate hanger, compactification and improvement in strength of the connection portion between the hanger and the housing main body As a result, it is possible to prevent the occurrence of problems in attaching the hanger.

  Further, when the hanger is not required, the rotary tool can be made compact because the holder can be accommodated in the housing portion of the housing main body by sliding the hanger.

  Furthermore, as described above, the hanger can be easily switched between the pulled-out position and the accommodated position in the housing body by configuring the hanger to slide relative to the housing body. .

  In the first configuration, the hanger is a U-shaped plate-like member in a plan view including a pair of support portions extending in the rotation axis direction and a connection portion connecting the support portions, the connection It is arrange | positioned along the side surface of the said housing main-body part so that a part may be located in the outward side of the said rotating shaft direction in the said housing main-body part. Each of the pair of support portions has a support portion main body located on the connection portion side. The said suspending part is comprised by the said support part main body and the said connection part (2nd structure).

  Thus, the rigidity of the said hanging tool can be improved by comprising a hanging tool by U-shaped plate-shaped member by planar view. Therefore, the strength of the hanger can be improved.

  Moreover, the hanger can be compactly arranged with respect to the housing body by arranging the hanger with a plate-like member and arranging along the side surface of the housing body. Therefore, the enlargement of the rotary tool can be suppressed.

  In addition, since the suspending portion is constituted by the supporting portion main bodies respectively provided by the pair of supporting portions of the suspending device and the connecting portion, the suspending portion is formed in a U shape such that a hooking tool such as a carabiner can be hung. It can be formed.

  In the second configuration, the pair of support portions further includes a slide portion which has a narrower gap between the support portions than the support portion main body and which slides relative to the storage portion, the support portion main body, and the support portion main body And a step portion located between the slide portion and the slide portion. The housing main body portion is provided with an abutting portion with which the stepped portion abuts in a state in which the hanger is positioned at the accommodation position in the accommodation portion (third configuration).

  Thus, when the hanger is slid to the storage position in the storage unit, the stepped portion of the hanger hits the contact portion provided on the housing main body. Therefore, the hanger can be more reliably positioned at the storage position in the storage portion.

  In the second or third configuration, the support portion main body is provided with a crank portion bent in a crank shape such that a distance between the pair of support portions is narrowed (fourth configuration). Thereby, in the state where a fastener such as a carabiner or the like is attached to the hanger, when removing the hanger, the crank part provided on the supporting portion main body of the hanger is used to make the fastener with one hand It is possible to remove the lifting device. That is, a crank portion provided on the main body of the support portion of the support portion positioned outside the carabiner among the pair of support portions in the hanger is pressed against the gate portion of the carabiner so as to open the gate portion. As a result, the gate portion and the main body portion sandwich the crank portion. In this state, the hanger can be removed from the carabiner with one hand by pressing the hanger against the gate in a direction to open the gate.

  Therefore, with the above-mentioned configuration, the hanger can be easily removed from the fastener.

  In any one of the first to fourth configurations, at the end of the housing main body, the hanger is held in a direction orthogonal to the rotation axis direction with respect to the housing main body. (5th structure) further provided with the holding | maintenance part provided in.

  Thereby, the movement of the hanger in the direction orthogonal to the rotation axis direction is restricted by the holding portion. Therefore, the hanger can be smoothly slid in the rotation axis direction with respect to the housing main body.

  And since the said holding | maintenance part is attached to the edge part of the said rotating shaft direction of the said housing main-body part, the rigidity of the said housing main-body part can be improved by the said holding | maintenance part. Therefore, the rigidity of the whole rotary tool can be improved, and the tool can be rotated in a stable state by the drive unit.

  In any one of the first to fifth configurations, the grip portion further includes an annular fixed hanger provided on the side opposite to the housing body portion. At least the outer peripheral portion of the fixing hanger is bent in the thickness direction (sixth configuration).

  Thus, the worker can attach the one of the hanger and the fixed hanger, which is easy to use, to the hook. Therefore, the convenience of the worker can be improved.

  In addition, the rigidity of the fixed hanger can be improved by bending the outer peripheral portion of the fixed hanger in the thickness direction. Therefore, the strength of the fixing hanger can be improved.

  The present invention is applicable to a rotary tool that applies a rotational force to a tool, such as an impact driver.

1 Impact driver 2 Motor (drive part)
2a Output shaft 4 housing
4a Right housing (partial housing)
4b Left housing (partial housing)
8 Hanging mechanism 9 Hook part (fixed hanging device)
9a Hanging part 9b Fixing part 9c Concave part 11 Housing main body part 12 Grip part 13 Power supply attachment parts 15, 16 Concave part (accommodating part)
15c, 16c Stepped part 20, 60 Hanging tool 20a Hanging part 21, 22 Support part 23 Connecting part 24, 25 Support part main body 24a, 25a 1st notch 24b, 25b 2nd notch 24c, 25c Crank 26, 27 Slides 28, 29, 68, 69 Stepped part 28a, 29a Locking notch 30 Holding member ( housing fixing member )
31. Holding portion 40. Locking mechanism 41, 42. Locking member 41a, 42a. Mounting portion 41b, 42b. Engaging portion P. Rotational axis

Claims (6)

A driving unit that rotates the tool;
A housing main body portion formed in a cylindrical shape extending in the rotational axis direction of the drive portion so as to be able to accommodate the drive portion therein; and a housing having a grip portion extending in a predetermined direction from the housing main body portion;
A hanging member having a hanging portion capable of hanging the housing, and provided at the end of the housing body in the direction of the rotation axis so as to be slidable in the direction of the rotation axis with respect to the housing body; Equipped with
The rotary tool is provided with an accommodating portion capable of accommodating the hanger and capable of sliding the hanger in the rotational axis direction in the housing body. In the rotary tool according to claim 1,
The hanger is a U-shaped plate-like member in a plan view including a pair of support portions extending in the rotation axis direction and a connection portion connecting the support portions, and the connection portion is the housing main body portion. It is disposed along the side surface of the housing main body so as to be located on the outer side in the rotational axis direction,
The pair of support portions are each
It has a supporting part body located on the side of the connecting part
The said hanging part is a rotary tool comprised by the said support part main body and the said connection part. In the rotary tool according to claim 2,
The pair of support portions may further include
A sliding portion which is narrower than a space between the supporting portions than the supporting portion main body and which slides relative to the housing portion;
It has a level difference part located between the support main part and the slide part,
The rotary tool is provided with an abutting portion on which the stepped portion abuts in the housing main body portion in a state where the hanger is positioned at the accommodation position in the accommodation portion. In the rotary tool according to claim 2 or 3,
The rotating tool according to claim 1, wherein the supporting portion main body is provided with a crank portion bent in a crank shape such that a distance between the pair of supporting portions is narrowed. The rotary tool according to any one of claims 1 to 4.
The rotary tool according to claim 1, further comprising: a holding portion provided at the end portion of the housing main body to hold the hanger in a direction perpendicular to the rotation axis direction with respect to the housing main body. The rotary tool according to any one of claims 1 to 5.
It further comprises an annular fixed hanger provided on the opposite side of the grip body to the housing body,
The rotating and fixing tool is at least an outer peripheral portion thereof bent in a thickness direction.

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