JP6492656B2 - Reciprocating tool - Google Patents

Description

  The present invention relates to a reciprocating tool such as a hedge trimmer and a plant clipper.

  2. Description of the Related Art Conventionally, a reciprocating tool (portable work machine) that cuts an object such as a branch and leaf by a relative reciprocating motion of an upper blade and a lower blade (blade) supported in close proximity to each other is known. A cam mechanism connected to a prime mover such as an engine or a motor via a gear relatively reciprocates the upper blade and the lower blade.

  Japanese Patent Application No. 2014-113575, which is a prior application proposed by the present applicant, describes a structure that facilitates replacement of a blade set including an upper blade and a lower blade.

  In general, when exchanging the upper and lower blades in a reciprocating tool, the operator adjusts the cam engaging portion (elongated hole) of the new upper and lower blades to a predetermined position, and the rotational position of the upper and lower cam plates. Is adjusted to a predetermined angle, and the upper and lower blades must be engaged with the upper and lower cam plates. If the cam engaging portions of the upper and lower blades and the upper and lower cam plates do not engage well, the above adjustment must be performed again, and blade replacement is cumbersome and expensive for unaccustomed users.

  On the other hand, in Japanese Patent Application No. 2014-113575, the central shaft member fixed in the housing is passed through the central hole provided in the blade assembly, and the dial knob is screwed into the screw portion provided in the central shaft member. Describes a configuration in which the blade set is detachably attached to the housing.

  However, further ingenuity is desired from the viewpoint of preventing rattling of the blade assembly attached to the reciprocating tool body and stabilizing the holding of the blade assembly.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a reciprocating tool capable of preventing rattling of the blade set and stabilizing the holding of the blade set.

The first aspect of the present invention is a reciprocating tool. This reciprocating tool is driven by a driving source, a housing that houses the driving source, a reciprocating conversion unit that converts rotation of a driving shaft that is rotationally driven by the driving source into reciprocating motion, and the reciprocating converting unit. And a reciprocating blade.
The blade set includes at least the reciprocation conversion unit and the blade,
A first mounting portion for detachably fixing the blade set to the bottom surface side of the housing ;
A second mounting portion provided at a position spaced from the first mounting portion, and removably fixing the blade set to the housing ;
The first attachment portion includes a restricting member that restricts switching between a state in which the blade set is fixed to the housing and a state in which the blade set is removable .

The second aspect of the present invention is a reciprocating tool. The reciprocating tool includes a drive source, a housing that houses the drive source, first and second splines that mesh with each other and transmit rotation of the drive source, and a cam that interlocks with the second spline. A mechanism, first and second blades that are relatively reciprocated by the cam mechanism, and a blade holder that supports the first and second blades;
A blade set having at least the second spline, the cam mechanism, the first and second blades, and the blade holder;
The blade set has a hole portion coaxial with the rotation center axis of the second spline, and a center shaft member that rotatably supports the first spline extends into the hole portion,
The first attachment portion for detachably attaching the blade set to the bottom surface side of the housing has a first manual fastener that is screwed to the central shaft member,
The second attachment portion for detachably attaching the blade set to the housing is provided at a position separated from the first attachment portion.

In the first aspect, the first and second splines meshing with each other to transmit the rotation of the drive source, and the reciprocating conversion unit is interlocked with the second spline, The blade set has a hole portion coaxial with the rotation center axis of the second spline, and a center shaft member that rotatably supports the first spline extends into the hole portion,
The first mounting portion has a configuration in which the central shaft member and a first manual type fastener that is screwed to the central shaft member are fixed, and the blade set is detachably fixed by the first manual type fastener. Good.

  The said aspect WHEREIN: The said 2nd attaching part is good to be able to attach or detach the said blade group with a 2nd manual type fastener. In this case, the second manual fastener may be disposed on the upper surface side of the housing.

  In the above aspect, the first attachment portion and the second attachment portion may be arranged in the longitudinal direction of the blade.

  In the above aspect, the center of the first mounting portion and the center of the second mounting portion may be located on the central axis of the blade.

  The said aspect WHEREIN: The extension part of the said housing is extended to the upper side of the said blade group, and the said 2nd attaching part is good to be provided in the said extension part.

The third aspect of the present invention is a reciprocating tool. This reciprocating tool is driven by a driving source, a housing that houses the driving source, a reciprocating conversion unit that converts rotation of a driving shaft that is rotationally driven by the driving source into reciprocating motion, and the reciprocating converting unit. And a reciprocating blade.
The blade set includes at least the reciprocation conversion unit and the blade,
A first mounting portion for detachably fixing the blade set to the bottom surface side of the housing;
A second mounting portion provided at a position spaced from the first mounting portion and removably fixing the blade set to the housing;
The second attachment portion has a second operated portion that is switched from a state in which the blade set is fixed to the housing to a removable state by being operated by an operator.
The first attachment portion is switched between a state in which the blade set is fixed to the housing and a state in which the blade set can be removed by operating the other while the operator is operating one. It has an operated part .

In the third aspect, the second operated portion may protrude from the housing toward the drive source in the axial direction of the drive shaft and rotate in a direction perpendicular to the axial direction of the drive shaft. When the second operated portion is operated once by an operator and the blade set can be removed from the housing, the second mounting portion has a removable state until it is operated again by the operator. It is good to maintain.
In the above aspect, the first attachment portion and the second attachment portion can be switched between a state in which the blade set is fixed to the housing and a state in which the blade set can be removed by a toolless operation manually performed by an operator. It is good to be.

  It should be noted that any combination of the above-described constituent elements, and those obtained by converting the expression of the present invention between methods and systems are also effective as aspects of the present invention.

  According to the present invention, it is possible to prevent the blade assembly attached to the reciprocating tool main body from rattling and to stabilize the holding of the blade assembly.

The side view of the reciprocating tool which concerns on embodiment of this invention. The bottom view in the state which removed the braid | blade set of the said reciprocating tool. The top view of the braid | blade group of the said reciprocating tool. The same side view. The principal part expanded side sectional view of the said reciprocating tool. The principal part expanded bottom view. The bottom view of the said reciprocating tool at the time of rotating a braid | blade set to the maximum in the non-meshing state which the 1st spline 9 and the 2nd spline 10 were mutually coaxial and adjoined. The bottom view of the said reciprocating tool at the time of setting a braid | blade set to a reference | standard rotation position in the meshing state in which the 1st spline 9 and the 2nd spline 10 meshed mutually. FIG. 8 is a front sectional view of the reciprocating tool in the state of FIG. 7. FIG. 9 is a front sectional view of the reciprocating tool in the state of FIG. 8 in which the blade set is fixed to the housing 1 with the dial knob 6 and the blade set is fixed to the blade set support member 30 with the knob nut 35. The perspective view of the dial knob 6 of the said reciprocating tool. It is the blade assembly support member 30, Comprising: (A) is a front view, (B) is a side view, (C) is a bottom view.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or equivalent component, member, etc. which are shown by each drawing, and the overlapping description is abbreviate | omitted suitably. In addition, the embodiments do not limit the invention but are exemplifications, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

  FIG. 1 is a side view of a reciprocating tool according to an embodiment of the present invention. FIG. 2 is a bottom view of the reciprocating tool with the blade set removed. FIG. 3 is a plan view of a blade set of the reciprocating tool. FIG. 4 is a side view of the same. FIG. 5 is an enlarged side cross-sectional view of a main part of the reciprocating tool. FIG. 6 is an enlarged bottom view of the main part. FIG. 7 is a bottom view of the reciprocating tool when the blade set is rotated to the maximum when the first spline 9 and the second spline 10 are coaxially and close to each other and are not meshed with each other. FIG. 8 is a bottom view of the reciprocating tool when the blade set is set at the reference rotation position with the first spline 9 and the second spline 10 engaged with each other. FIG. 9 is a front sectional view of the reciprocating tool in the state of FIG. FIG. 10 is a front sectional view of the reciprocating tool in the state of FIG. 8 in which the blade set is fixed to the housing 1 with the dial knob 6 and the blade set is fixed to the blade set support member 30 with the knob nut 35. FIG. 11 is a perspective view of the dial knob 6 of the reciprocating tool. FIG. 12 is a front view, a side view, and a bottom view of the blade group support member 30.

  The reciprocating tool of the present embodiment is a hedge trimmer (also referred to as a plant clipper), and the housing 1 incorporates a prime mover 7 (FIG. 5) such as an engine or a motor as a drive source. The housing 1 is provided with a main handle (rear handle) 1a and a sub handle (front handle) 1b. The main handle 1a is provided with a trigger switch 1c operated by a user. The scattering protection cover 1d is erected on the front end portion of the housing 1, and prevents the clipped object from scattering to the user side. A blade set 20 is attached to the lower portion of the housing 1. The blade set 20 is obtained by integrating the upper blade 2, the lower blade 3, the blade guide 4, the blade holder 5, the cam mechanism 11 and the second spline 10 as shown in FIGS.

  An upper blade 2 as a first blade and a lower blade 3 as a second blade are sandwiched from above and below between a blade guide 4 and a blade holder 5 with screws 15a and nuts 15b as fixing members (FIG. 3). ) Are supported close to each other and slidable. The base ends of the upper blade 2 and the lower blade 3 are engaged with a cam mechanism 11 that constitutes a reciprocating motion conversion unit. The cam mechanism 11 includes an upper cam plate portion (first cam plate portion) 11a, a lower cam plate portion (second cam plate portion) 11b, and a flange portion 11c. The flange portion 11c is a disk-like portion having a larger diameter than the upper cam plate portion 11a and the lower cam plate portion 11b, which is located between the upper cam plate portion 11a and the lower cam plate portion 11b. A long hole 2a (FIG. 3) as a cam engaging portion is formed at the base end portion of the upper blade 2, and the inner peripheral portion of the long hole 2a engages with the outer peripheral surface of the upper cam plate portion 11a. Similarly, a long hole (not shown) as a cam engaging portion is formed in the base end portion of the lower blade 3, and the inner peripheral portion of the long hole engages with the outer peripheral surface of the lower cam plate portion 11b. The flange portion 11c has a larger diameter than the short diameter (inner diameter in the short direction) of the long hole 2a of the upper blade 2 and the long hole of the lower blade 3, and the cam mechanism 11 comes out of the upper blade 2 and the lower blade 3. To prevent. A second spline 10 is integrally provided on the upper portion of the cam mechanism 11. The center axis of the flange portion 11 c coincides with the rotation center axis of the second spline 10. As shown in FIGS. 3 and 5, the center hole 16 is coaxial with the rotation center axis of the second spline 10 and penetrates the second spline 10, the cam mechanism 11, and the blade holder 5. The blade holder 5 is integrally provided with a predetermined number (four in the illustrated example) of pins 5a protruding toward the housing 1 side.

  As shown in FIG. 5, a pinion (gear) 8 is provided at the tip of the output shaft (drive shaft) 7 a of the prime mover 7. The pinion 8 meshes with the first spline 9 and transmits the rotation of the prime mover 7 to the first spline 9 at a predetermined reduction ratio. The first spline 9 is an inner involute spline, for example, and is supported in the gear storage space 1 k of the housing 1. Specifically, the first spline 9 is rotatably supported by a central shaft member (gear shaft) 12 fixed to the housing 1 so as not to fall off by a retaining ring 13. The second spline 10 meshes with the first spline 9 (spline fitting). The second spline 10 is, for example, an outer involute spline. The central shaft member 12 passes through the central hole 16 provided in the blade set 20 and protrudes downward from the blade holder 5. A screw is formed on the outer peripheral surface on the front end side of the central shaft member 12 (the front end portion of the central shaft member 12 is a screw portion), and the dial knob 6 as a knob which is a manual fastener is the central shaft member. The blade set 20 is detachably attached to the housing 1 by being screwed onto the housing 12. The rotation of the prime mover 7 is transmitted to the pinion 8, the first spline 9, and the second spline 10, and as a result, the cam mechanism 11 integrated with the second spline 10 rotates. The cam mechanism 11 is rotationally driven by the prime mover 7 and converts the rotation of the prime mover 7 into the reciprocating motion of the blade 2 and the lower blade 3.

  As shown in FIGS. 2 and 5, a blade assembly support member 30 extending in the longitudinal direction of the blade assembly 20 and having a through hole 31 at a position facing the screw 15 a is disposed (adhered) on the front end side of the housing 1. ) As shown in FIGS. 12A, 12 </ b> B, and 12 </ b> C, the blade set support member 30 includes a fixing portion 32 disposed in the housing 1 and an extension portion 33 extending to the outside (front) of the housing 1. A slit groove 34 is formed on the side edge of the fixing portion 32 and is fitted to a rib 25 formed on the inner side of the housing 1. The through hole 31 is formed in the extension portion 33, and the through hole 31 has an elongated hole shape around the rotation center axis of the blade set 20 so as to correspond to a rotatable range of the blade set 20 described later. ing. The blade set 20 is fixed to the blade set support member 30 by engaging (screwing) a knob nut 35 as a manual fastener on the tip side of the blade set side screw 15a (fixing member) that has passed through the through hole 31. Is done.

  As shown in FIG. 11, the dial knob 6 has a base portion 6a, an annular rib 6b, and a ratchet portion 6c. The base portion 6a has a substantially disc shape having a side wall. A nut 6d that is screwed with the central shaft member 12 is integrally provided at the center of the base portion 6a (FIGS. 5 and 6). The dial knob 6 is made of resin, for example, except for the nut 6d. The nut 6d is made of, for example, metal. The annular rib 6b is erected on the base portion 6a and circulates around the center of the base portion 6a in a circular shape. A ratchet portion 6c is provided at the upper end of the annular rib 6b. As shown in FIG. 5, the housing 1 is provided with a locking piece 14b (for example, made of metal) as a loosening prevention means. As will be described later, as shown in FIG. The lower end portion of the locking piece 14b protruding from the through hole 5b provided in the rear portion of the blade holder 5 when engaged with the ratchet portion 6c of the dial knob 6 is secured. This engagement prevents the dial knob 6 from rotating in the loosening direction. On the other hand, the dial knob 6 can be easily rotated in the tightening direction. The locking piece 14b is released from engagement with the ratchet portion 6c by pushing the operating member 14a facing downward from the bottom surface of the housing 1.

  As shown in FIG. 2, the bottom portion of the housing 1 has a first recess 1e, a pair of first wall portions 1f, a second recess 1g, a pair of second wall portions 1h, a pin guide recess 1i, And pin fitting recessed part (engagement part) 1j is provided. Each part attaches the blade set 20, that is, the teeth of the first spline 9 and the second spline 10 are aligned with each other, and the first spline 9 and the second spline 10 are engaged with each other. This is related to the work of fixing to the rotational position.

  The first recess 1e is a blade guide when the teeth of the first spline 9 and the second spline 10 are aligned with each other when the first spline 9 and the second spline 10 are coaxial and close to each other. 4 forms a space for enabling rotation (that is, enabling the blade set 20 to rotate). A pair of first wall portions 1 f located on both sides of the first recess 1 e are engaged with (abutted on) the side surfaces of the blade guide 4 and both ends of the rotatable range of the blade set 20 in the unengaged state. (Fig. 9). The pin guide recesses 1 i are provided in the same number as the pins 5 a of the blade holder 5. Each pin guide recess 1i forms a space for each pin 5a to enter when the blade set 20 is rotated in the unengaged state. Both ends of the rotatable range of the blade set 20 in the unengaged state can also be determined by the inner wall of the pin guide recess 1i. The range in which the blade set 20 can be rotated in the unengaged state is set such that the second spline 10 can rotate with respect to the first spline 9 by one gear pitch or more. That is, the interval between the pair of first wall portions 1f or the inner wall position of the pin guide recess 1i so that the rotatable range is equal to or greater than one pitch of the gears of the first spline 9 and the second spline 10. Determine.

  The second recess 1g is configured so that the rotational position of the blade holder 5 (that is, the rotational position of the blade set 20) in the meshed state in which the first spline 9 and the second spline 10 are meshed is the upper blade 2 and the lower blade 3. Is provided at a position (reference rotation position) extending straight forward from the housing 1. That is, in the meshing state, when the rotational positions of the blade set 20 and the first spline 9 are adjusted so that the upper blade 2 and the lower blade 3 extend straight forward from the housing 1 (the blade set 20 is set to the reference rotational position). When adjusted), the blade holder 5 is fitted into the second recess 1g (FIG. 10). Then, the pair of second wall portions 1h located on both sides of the second concave portion 1g are engaged (contacted) or closely opposed to the side edges of the blade holder 5, whereby the rotational position of the blade set 20 is determined as a reference. It is substantially fixed in the pivot position. The same number of pin fitting recesses 1j as the pins 5a of the blade holder 5 are provided. Each pin 5a of the blade holder 5 that has come to the reference rotation position in the meshing state is fitted (engaged) with each pin fitting recess 1j. The pin fitting recess 1j can also substantially fix the rotation position of the blade set 20 to the reference rotation position.

  A preferred procedure for attaching the blade set 20 to the housing 1 will be described. First, the housing 1 is supported so that the bottom surface faces upward. Then, with the second spline 10 downward, the second spline 10 is coaxial with the first spline 9, and the blade guide 4 is positioned in the first recess 1e of the housing 1. 20 is aligned with the housing 1. This alignment can be easily performed by passing the central shaft member 12 extending from the housing 1 through the central hole 16 of the blade set 20. After the alignment, the first spline 9 and the second spline 10 are in an unmeshed state in which they are coaxial and close to each other. Thereafter, the blade set 20 is rotated (FIGS. 7 and 9), the positions of the teeth of the first spline 9 and the second spline 10 are aligned, and both are meshed. The rotatable range at that time is limited by the pair of first wall portions 1f or the inner walls of the pin guide recesses 1i as described above. After the first spline 9 and the second spline 10 are engaged with each other, the blade set 20 is moved to a reference rotation position where the upper blade 2 and the lower blade 3 extend straight forward from the housing 1 as shown in FIG. adjust. Then, as shown in FIG. 10, the blade holder 5 is fitted into the second recess 1g of the housing 1, and each pin 5a of the blade holder 5 is fitted into each pin fitting recess 1j. The moving position is fixed at the reference rotation position. Thereafter, the dial knob 6 is screwed onto the central shaft member 12 projecting through the blade holder 5 on the bottom side of the portion of the housing 1 that houses the cam mechanism 11 (reciprocating motion conversion portion), and the upper side of the housing 1 When the knob nut 35 is screwed onto the tip of the screw 15a that has passed through the through hole 31 of the blade assembly support member 30, the attachment of the blade assembly 20 to the housing 1 is completed. When the blade set 20 is removed from the housing 1, the dial knob 6 is turned in the loosening direction with the operating member 14a pushed to release the engagement between the locking piece 14b and the ratchet portion 6c of the dial knob 6. Is removed from the central shaft member 12 and the knob nut 35 is removed from the screw 15a, and then the blade set 20 is removed from the central shaft member 12.

  According to the present embodiment, the following effects can be achieved.

(1) A first mounting portion (attachment to the central shaft member 12) using the dial knob 6 as a manual fastener, in which the blade assembly support member 30 is provided in the housing 1 and the blade assembly 20 is fixed to the housing 1 And the second attachment portion (attachment to the blade assembly support member 30) using the knob nut 35 as a manual fastener, compared with the case where the dial knob 6 is used for fixing at one location. Thus, the blade set 20 can be fixed to the housing 1 without rattling, and the holding of the blade set 20 can be stabilized. In particular, a first attachment portion using the dial knob 6 and a second attachment portion using the knob nut 35 are arranged in the longitudinal direction of the blades (upper blade 2 and lower blade 3) (for example, the first attachment portion). And the center of the second mounting portion are located on the center axis of the blade), so that it is possible to improve the durability when a load is applied in the thickness direction of the blade assembly 20.

(2) Since the blade set 20 is fixed to the housing 1 at a plurality of locations of the dial knob 6 of the first mounting portion and the knob nut 35 of the second mounting portion, the dial knob 6 is simply removed. Then, the blade set 20 is not detached from the housing 1. Further, since the dial knob 6 is disposed on the bottom surface side of the housing 1 and the knob nut 35 is disposed on the top surface side of the housing 1, after the dial knob 6 is removed, the bottom surface of the main body is directed downward so that the desk or the ground is stable. If the knob nut 35 is removed at a place, the blade set 20 can be removed at a timing intended by the operator.

(3) The blade assembly 20 can be replaced by loosening or tightening the dial knob 6 as a manual fastener for the first attachment portion and the knob nut 35 as a manual fastener for the second attachment portion. Tool-less and workability is good.

  The present invention has been described above by taking the embodiment as an example. However, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way. Hereinafter, modifications will be described.

  In the above embodiment, the blade set 20 is fixed to the housing 1 using the dial knob 6 and the knob nut 35, but a plurality of knob nuts may be used instead of the dial knob 6. For example, a blade assembly support member (which may be a single component or a plurality of components) having through holes in opposite directions in the longitudinal direction of the blade assembly 20 across the central shaft member 12 is used. It is good also as a structure which fixes the braid | blade group 20 to a braid | blade group support member using a some knob nut with respect to the fixing member of 20 side.

  In the above embodiment, the blade assembly supporting member 30 which is another part is disposed in the housing 1. However, the blade assembly supporting member 30 is integrated with the housing 1, that is, a part of the shape of the housing 1 is the blade assembly. The structure may have a through hole at a position extending in the longitudinal direction of 20 and facing a fixing member (screw or the like) on the blade set 20 side.

1 housing, 1a main handle (rear handle), 1b sub handle (front handle), 1c trigger switch, 1d splash protection cover, 1e first recess, 1f first wall, 1g second recess, 1h second Wall, 1i pin guide recess, 1j pin fitting recess (engagement portion), 1k gear storage space, 2 upper blade (first blade), 2a long hole (cam engagement portion), 3 lower blade (first 2 blade), 4 blade guide, 5 blade holder, 5a pin, 5b through hole, 6 dial knob, 6a base portion, 6b annular rib, 6c ratchet portion, 7 prime mover, 7a output shaft, 8 pinion (gear), 9 First spline (first gear), 10 second spline (second gear), 11 cam mechanism, 11a upper cam plate (first cam plate), 11b Plate part (second cam plate part), 11c flange part, 12 center shaft member (gear shaft), 13 retaining ring, 14a operation member, 14b locking piece, 15a screw, 15b nut, 16 center hole, 20 blade Set, 30 Blade set support member, 31 Through hole, 35 Knob nut.

Claims (12)

A driving source;
A housing containing the drive source;
A reciprocating motion conversion unit that converts the rotation of the drive shaft that is rotationally driven by the drive source into a reciprocating motion;
A blade that is driven by the reciprocating motion conversion unit to reciprocate,
The blade set includes at least the reciprocation conversion unit and the blade,
A first mounting portion for detachably fixing the blade set to the bottom surface side of the housing ;
A second mounting portion provided at a position spaced from the first mounting portion, and removably fixing the blade set to the housing ;
A reciprocating tool, wherein the first attachment portion includes a regulating member that regulates switching between a state in which the blade set is fixed to the housing and a state in which the blade set is removable . A driving source;
A housing containing the drive source;
First and second splines meshing with each other to transmit rotation of the drive source;
A cam mechanism interlocking with the second spline;
First and second blades reciprocally moved by the cam mechanism;
A blade holder for supporting the first and second blades,
A blade set having at least the second spline, the cam mechanism, the first and second blades, and the blade holder;
The blade set has a hole portion coaxial with the rotation center axis of the second spline, and a center shaft member that rotatably supports the first spline extends into the hole portion,
The first attachment portion for detachably attaching the blade set to the bottom surface side of the housing has a first manual fastener that is screwed to the central shaft member,
A reciprocating tool characterized in that a second attachment portion for detachably attaching the blade set to the housing is provided at a position spaced from the first attachment portion. A first spline and a second spline that mesh with each other to transmit the rotation of the drive source;
The reciprocating conversion unit is interlocked with the second spline,
The blade set has a hole portion coaxial with the rotation center axis of the second spline, and a center shaft member that rotatably supports the first spline extends into the hole portion,
The first mounting portion includes the central shaft member and a first manual type fastener that is screwed to the central shaft member, and the blade set is detachably fixed by the first manual type fastener. The reciprocating tool according to claim 1. The reciprocating tool according to any one of claims 1 to 3 , wherein the blade set is attachable to and detachable from the second attachment portion by a second manual fastener. The reciprocating tool according to claim 4 , wherein the second manual fastener is disposed on an upper surface side of the housing. The reciprocating tool according to any one of claims 1 to 5 , wherein the first attachment portion and the second attachment portion are arranged in a longitudinal direction of the blade. Reciprocating according to any one of claims 1 to 6, characterized in that the centers of said second attachment portion of the first mounting portion is located on the central axis of the blade tool. Extends upward extension is set of the blades of said housing, said second attachment portion according to any one of claims 1 to 7, characterized in that provided on the extended portion Reciprocating tool. A driving source;
A housing containing the drive source;
A reciprocating motion conversion unit that converts the rotation of the drive shaft that is rotationally driven by the drive source into a reciprocating motion;
A blade that is driven by the reciprocating motion conversion unit to reciprocate,
The blade set includes at least the reciprocation conversion unit and the blade,
A first mounting portion for detachably fixing the blade set to the bottom surface side of the housing;
A second mounting portion provided at a position spaced from the first mounting portion and removably fixing the blade set to the housing;
The second attachment portion has a second operated portion that is switched from a state in which the blade set is fixed to the housing to a removable state by being operated by an operator.
The first attachment portion is switched between a state in which the blade set is fixed to the housing and a state in which the blade set can be removed by operating the other while the operator is operating one. A reciprocating tool having an operated portion . The said 2nd to-be-operated part protrudes from the said housing in the axial direction of the said drive shaft to the said drive source side, and rotates in the direction perpendicular | vertical to the axial direction of the said drive shaft. Reciprocating tool. When the second operated portion is operated once by an operator and the blade set can be removed from the housing, the second mounting portion has a removable state until it is operated again by the operator. The reciprocating tool according to claim 10, wherein the reciprocating tool is maintained. The first attachment portion and the second attachment portion can be switched between a state in which the blade set is fixed to the housing and a state in which the blade set can be removed by a toolless operation manually performed by an operator. The reciprocating tool according to claim 1, wherein the tool is a reciprocating tool.