JP4485316B2 - Trimming machine - Google Patents

Description

  The present invention is also referred to as a hedge clipper or a hedge trimmer, and relates to a hand-held trimming machine used for pruning work such as hedges and garden trees.

This type of trimming machine includes, for example, a main body incorporating an electric motor as a drive source and two trimming blades protruding forward from the main body, and the electric motor is activated to oppose the two trimming blades. It is reciprocated in the direction so that hedge branches and leaves can be cut, and as a whole has a long frame.
By the way, this kind of trimming machine is mostly used for pruning work of hedges and garden trees in general households, so the period of use within a year is limited to a very short period such as early spring. Most of the year is stored in storerooms without being used. As a result, it is necessary to secure a relatively large storage space in order to store the trimming machine having a long shape as a whole as described above.
JP-A 63-129933

As described above, no technology for compactly storing a trimming machine that requires a relatively large storage space has been provided.
In addition, even when the trimming machine is shipped from the manufacturer, there is a problem that the transportation cost increases because the cutting machine is loaded in a long state.
Accordingly, an object of the present invention is to provide a trimming machine that can be stored compactly when not in use, and as a result, the storage space can be reduced, and the transportation cost of the manufacturer can be reduced.

For this reason, this invention was set as the trimming machine of the structure described in each claim of a claim.
According to the trimming machine of the first aspect, since the long trimming blade extending forward from the main body can be moved to the storage position along the main body, the total length can be made shorter than that of the use state, and accordingly, conventionally. Can be stored in a compact state. Since it can be stored in a more compact state than before, the required storage space can be reduced, and the loading space at the manufacturer shipping stage can be saved to reduce the conveyance cost.
According to the trimming machine of the first aspect , the trimming blade can be moved between the use position and the storage position by a simple operation.

According to the trimming machine of claim 1, in a state in which the trimming blade is located at the use position, the push button is pushed out to the lock position by the spring biasing force and is opposed to the rear end surface of the trimming blade, thereby trimming. The left and right rotation of the blade is locked. When the push button is pushed into the unlocked position against the spring biasing force, the push button comes off the position facing the rear end surface of the cutting blade (retracts from the rotation range of the cutting blade), thereby The trimming blade can be rotated from the use position to the storage position. For this reason, the total length of the trimming machine can be shortened by pushing the push button into the unlocked position and rotating the trimming blade to the retracted position. Has the same effect as.
According to the trimming machine of claim 2, in a state where the trimming blade is located at the use position and the storage position, the lock lever is tilted to the lock position and the rotation of the trimming blade is restricted, whereby the trimming blade is at the use position. And locked in the storage position. When the lock lever is tilted to the upper unlock position, the lock lever is retracted from the range of rotation of the trimming blade, and the trimming blade can be rotated from the use position to the storage position and vice versa.
From this, the trimming blade can be stored in the storage position in the same manner as described above to shorten the total length of the trimming machine, and can be stored in a compact state.
According to the trimming machine of the third aspect , the trimming blade is sandwiched from both sides by the two lock levers, and the rotation in both the left and right directions at the use position and the storage position is locked.
According to the trimming machine of the fourth aspect , malfunction of the trimming machine in a state where the trimming blade is stored in the storage position can be prevented.

Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a trimming machine 1 of the present embodiment described below. The trimming machine 1 includes a main body 2 having an electric motor 10 built in a front portion of a main body case 11 and two long trimming blades 20 and 30 extending forward from the front portion of the main body 2. The details of the power transmission path from the electric motor 10 to the trimming blades 20 and 30 are shown in FIG.
A drive gear 10 a is formed on the output shaft of the electric motor 10. The drive gear 10 a is meshed with a gear portion 12 a formed on the peripheral surface of the drive wheel 12. The drive wheel 12 is rotatably supported on the support shaft 13 via a bearing 17. For this reason, when the electric motor 10 is started, the drive wheel 12 rotates around the support shaft 13.
A circular disk 14 is attached to the lower surface side of the drive wheel 12, and a disk 15 having the same shape and size is attached to the lower surface side of the disk 14. As shown in FIG. 3, the two disks 14 and 15 are fixed at positions that are eccentric by the same distance on the opposite sides of the support shaft 13, that is, the rotation center of the drive wheel 12 by 180 °. For this reason, when the drive wheel 12 rotates about the support shaft 13, both disks 14 and 15 revolve along the same circular orbit centered on the support shaft 13.

As shown in FIG. 2, the support shaft 13 is fixed to the upper surface of the base end side of the long lower cover 18 in a rising shape. The support shaft 13 is supported by the bearing portion 11 a of the main body case 11 so as to be rotatable about the axis. However, the movement of the support shaft 13 in the axial direction is restricted by the retaining ring 11b. Therefore, the lower cover 18 is supported by the main body case 11 via the support shaft 13 so as to be rotatable in the horizontal direction (a direction orthogonal to the paper surface in FIG. 2). Further, the flange portion 13 a of the support shaft 13 holds the lower cover 18 against the main body case 11. On the upper surface side of the lower cover 18, the upper cover 16 is attached along the longitudinal direction of the lower cover 18. The upper cover 16 is fixed along the lower cover 18 with a fixed gap between the upper cover 16 and the lower cover 18 by fixing screws 19 to 19. Two cutting blades 20 and 30 are sandwiched between the upper cover 16 and the lower cover 18. For this reason, the upper and lower covers 16 and 18 and the trimming blades 20 and 30 are supported by the main body case 11 so as to be integrally rotatable in a range of 360 ° in the horizontal direction.
As shown in FIG. 3, the two trimming blades 20 and 30 each include a large number of cutting edges 20 a to 20 a and 30 a to 30 a that are arranged in a staggered manner along the longitudinal direction thereof, and are superposed back to back on each other. Is sandwiched between the upper and lower covers 16 and 18. Further, both the trimming blades 20 and 30 are sandwiched between the upper and lower covers 16 and 18 so as to be movable in the longitudinal direction, and are sandwiched between the upper and lower covers 16 and 18 so as to be movable in the longitudinal direction thereof.
Engagement holes 20b and 30b that are long in the direction orthogonal to the longitudinal direction (the direction orthogonal to the paper surface in FIG. 2) are formed on the base end side (left end side in FIG. 1) of the trimming blades 20 and 30, respectively. Yes. Disks 14 and 15 are inserted into the engaging holes 20b and 30b, respectively. The drive wheel 12 rotates about the support shaft 13, whereby both disks 14, 15 revolve around the support shaft 13, so that both the cutting blades 20, 30 reciprocate in opposite directions. When the two trimming blades 20 and 30 are reciprocated in opposite directions, it is sandwiched between the blade edges 20a to 20a and 30a to 30a, and garden trees, hedge branches and the like can be cut.

Next, as shown in FIG. 3, the base end side of the lower cover 18 is formed in a substantially rectangular flat plate shape having flat left and right end faces 18a and 18b and a rear end face 18c, respectively. The distance between each end face 18a, 18b, 18c and the support shaft 13 is set to the same dimension.
In a state where both the trimming blades 20 and 30 are positioned in a use position extending forward from the main body 2 (the state shown in FIG. 3), the flat front surface 50a of the push button 50 contacts the rear end surface 18c of the lower cover 18. Has been. In the present embodiment, the push button 50 corresponds to an embodiment of the lock member described in the claims.
This push button 50 has a generally block body shape, and is provided on the lower surface of the main body case 11 so that it can be pushed, that is, can be moved up and down in FIG. The push button 50 is urged in a direction (downward in FIG. 2) pushed out by the compression spring 51. When pushed out to the locked position by the compression spring 51, the flat front surface 50a of the push button 50 is substantially in contact with the flat rear end surface 18c of the lower cover 18. As a result, the pivoting operation of the lower cover 18 around the support shaft 13 is prohibited, and as a result, both the trimming blades 20 and 30 are fixed at positions extending forward of the main body 2.
When the push button 50 is pushed into the unlock position against the compression spring 51, both the trimming blades 20 and 30 can be rotated integrally with the upper and lower covers 16 and 18 in the range of 360 °. 4 and 6 show a state in which both the trimming blades 20 and 30 are rotated 180 ° from the use position shown in FIGS. 1 and 3 and are located at a position (storage position) extending rearward from the support shaft 13. Yes. In this state, as shown in FIGS. 4 and 5, the upper cover 16 is positioned below the push button 50, so that the push button 50 is held in the unlocked position.
When both the trimming blades 20 and 30 and the upper and lower covers 16 and 18 are rotated to the use position, the push button 50 is pushed out to the lock position side by the compression spring 51. When the push button 50 is pushed out to the locked position, the front face 50a is brought into contact with the rear end face 18c of the lower cover 18 as described above, so that both the trimming blades 20 and 30 and the upper and lower covers 16 and 18 are brought into the use position. Retained.

As shown in FIGS. 2 and 5, a normally closed sensor 55 (microswitch) is disposed above the push button 50. This sensor 55 is incorporated in a drive circuit C for driving the electric motor 10. This drive circuit C is shown in FIG. In a state where the push button 50 is pushed out to the lock position, the sensor 55 is held in the on state. In this on state, the drive circuit is closed. When the push button 50 is pushed into the unlock position, the sensor 55 is turned off. When the sensor 55 is in an off state, the drive circuit C is opened, and thus the electric motor 10 is held in a state where it is not started.
Next, as shown in FIG. 1, a handle portion 40 is provided at the rear portion of the main body case 11. The handle portion 40 includes a gripping portion 40a that protrudes rearward from the upper portion of the main body case 11 and a frame portion 40b that extends downward from the rear end of the gripping portion 40a in an L shape and reaches the lower portion of the main body case 11, and is generally D-shaped. have. A trigger-type switch lever 41 is disposed on the proximal end side of the grip portion 40a (site close to the main body case 11). When the switch lever 41 is pulled with a fingertip, the main switch 42 is turned on, thereby starting the electric motor 10. However, even if the switch lever 41 is pulled and the main switch 42 is turned on, when the sensor 55 is turned off, the electric motor 10 does not start because the drive circuit C is opened.
A power cord 43 is drawn from the rear end of the grip portion 40 a of the handle portion 40. A certain range of the power cord 43 on the proximal end side of the drawer is protected by a rubber cover 43a. The rubber cover 43a prevents the power supply cord 43 from being bent at the base end side, thereby preventing the power supply cord 43 from being damaged.
Next, an auxiliary handle 45 is attached to the main body 2. The auxiliary handle 45 is fixed so as to extend obliquely upward and forward from the lower portion of the main body 2 when viewed from the side. Further, the auxiliary handle 45 is fixed in a state straddling between the left and right side portions of the main body 2 when viewed in plan. The user of the trimming machine 1 can use the trimming machine 1 by gripping the grip portion 40a of the handle portion 40 with one hand and gripping the auxiliary handle 45 with the other hand.
A shielding plate 46 is attached to the front portion of the main body 2. The shielding plate 46 is fixed so as to rise obliquely upward from the lower front surface of the main body 2. The shielding plate 46 prevents the cut leaves and the like from scattering to the user side. The shielding plate 46 can be easily removed from the main body 2 by loosening the fixing screw 46a.

According to the trimming machine 1 of the present embodiment configured as described above, when both the trimming blades 20 and 30 are positioned in the use position extending forward from the main body 2, the push button 50 is pushed out to the locked position by the compression spring 51. As a result, both the trimming blades 20 and 30 are locked in the use position. In a state where the push button 50 is pushed out to the lock position, the sensor 55 is turned on and the drive circuit C is closed. For this reason, when the switch lever 41 is pulled and operated with both the trimming blades 20 and 30 in the use position, the electric motor 10 is activated to operate both the trimming blades 20 and 30, thereby performing the trimming operation. be able to.
When the trimming machine 1 is not used, the trimming blades 20 and 30 can be stored. In order to store the two trimming blades 20 and 30, first, the push button 50 is pushed into the unlocked position, and the two trimming blades 20 and 30 are moved around the support shaft 13 together with the upper and lower covers 16 and 18 in this state. Turn back 180 °. As a result, both the trimming blades 20 and 30 and the upper and lower covers 16 and 18 extend rearward from the support shaft 13 and are stored in storage positions along the frame portion 40 b and the power cord 43 of the handle portion 40.
Here, the total length (machine length) L1 of the trimming machine 1 in a state in which both the trimming blades 20 and 30 are positioned at the use position is obtained by storing the trimming blades 20 and 30 in the storage position as described above. The size can be reduced to L2. By removing the shielding cover 46 from the main body 2 during storage, the overall length L2 is approximately equal to the length of the trimming blades 20 and 30, while the total length L1 is equal to the length of both the trimming blades 20 and 30 and part of the main body 2 and the handle. It becomes the length which added the length of the part 40 and the rubber cover 43a. From this, the total length L2 of the trimming machine 1 at the time of storage can be shortened by at least the length in the machine length direction of the handle portion 40 and the rubber cover 43, and accordingly, the total length L2 of the trimming machine 1 can be significantly shortened. (L2 << L1).
From the above, according to the trimming machine 1 of the present embodiment, the trimming machine 1 can be accommodated in a state in which its overall length is significantly shorter than that of the conventional one, so that it can be accommodated in a smaller space. In addition, since both the trimming blades 20 and 30 can be accommodated and the total length of the trimming machine 1 can be significantly shortened compared to the conventional one, the shipping space of the trimming machine 1 can be greatly saved at the manufacturer shipping stage. Thus, the conveyance cost can be reduced.

Further, in the state in which both the trimming blades 20 and 30 are housed, the push button 50 is held in the unlocked position, and as a result, the sensor 55 is turned off and the drive circuit C is shut off. Even when the switch lever 41 is accidentally pulled in a state where the is connected, an inadvertent malfunction of the trimming blades 20 and 30 can be reliably prevented.
Further, according to the illustrated trimming machine 1, the lower cover 18 is provided with flat left and right end surfaces 18a and 18b, respectively, in addition to the rear end surface 18c, and between the support shaft 13 and the end surfaces 18a, 18b and 18c. The distances are set to the same dimension. For this reason, for example, as shown in FIG. 7, the front surface of the push button 50 is also obtained when the two cutting blades 20 and 30 are not rotated 180 ° from the use position as described above but are rotated 90 ° to the right or left. 50a can be brought into contact with the right end surface 18a or the left end surface 18b. For this reason, for example, as shown in FIG. 7, the cutting blades 20 and 30 are rotated 90 ° to the left (clockwise in the drawing), and the both cutting blades 20 and 30 are fixed at positions extending leftward with respect to the main body 2. can do. That is, in the state shown in FIG. 3, the push button 50 is once pushed into the unlocked position, and in this state, both the trimming blades 20 and 30 are rotated by 90 ° to the left (clockwise in FIG. 7). Thereafter, when the pushing operation of the push button 50 is released and the push button 50 is returned to the locked position by the urging force of the compression spring 51, the front face 50a is brought into contact with the left end face 18b of the lower cover 18, as shown in FIG. The two trimming blades 20 and 30 are fixed in the auxiliary use position rotated 90 degrees to the left side.
Although not shown, with the push button 50 pushed into the unlock position, the two cutting blades 20 and 30 are rotated 90 ° to the right (in the counterclockwise direction in FIG. 7) with respect to the main body 2. If the pushing operation of the push button 50 is released, both the trimming blades 20 and 30 are fixed at the auxiliary use position on the right side.
In the state where both the trimming blades 20 and 30 are fixed at the right or left auxiliary use position as described above, the sensor 55 is turned on because the push button 50 is located at the lock position. For this reason, if the switch lever 41 is pulled, the electric motor 10 is activated and both the trimming blades 20 and 30 can be operated.
Thus, according to the trimming machine 1 of the present embodiment, both the trimming blades 20 and 30 can be positioned at the auxiliary usage position extending in the left and right sides in addition to the usage position extending forward with respect to the main body 2. The trimming blades 20 and 30 can be repositioned to the optimum positions for various work modes, and the trimming work can be performed efficiently.

Various modifications can be made to the first embodiment described above. For example, the push button 50 is exemplified as the lock member in the first embodiment, but a configuration using the lock lever 60 as the lock member as shown in FIG. 9 (second embodiment) may be employed. The same reference numerals are used for the same configurations and members as those in the first embodiment, and the description thereof is omitted.
Both the trimming blades 20 and 30 and the upper and lower covers 16 and 18 are provided so as to be integrally rotatable about the support shaft 13 in the range of 360 ° in the horizontal direction as in the first embodiment.
Lock levers 60 are respectively provided at the lower portions of both sides of the main body 2 so as to be tiltable up and down. As shown in FIG. 10, both lock levers 60 are bent in an L shape. Further, as shown in FIG. 12, both lock levers 60, 60 are connected via a support shaft 61. For this reason, both the lock levers 60 and 60 are tilted up and down integrally with each other, whereby the lock lever 60 can be tilted from either side with respect to the main body 2. Further, a torsion spring 62 is interposed between one lock lever 60 and the side of the main body case 11. The torsion spring 62 urges both the lock levers 60 and 60 in the direction in which the L-shaped bent portion 60a on the tilting tip side is displaced downward (lock position side).
As shown in FIG. 10, stopper wall portions 63 and 64 are provided on both side portions of the main body case 11 and below and above each lock lever 60 so as to protrude sideways. The tilting range of each lock lever 60 is regulated by the stopper wall portions 63 and 64. The downward tilt range of the lock lever 60 is regulated by the lower stopper wall 63.
Both the lock levers 60, 60 are tilted to the lock position side by the biasing force of the torsion spring 62 and come into contact with the lower stopper wall 63, whereby the lock levers 60, 60 are held at the lock position. In a state where the lock levers 60 and 60 are held in the locked position, these L-shaped bent portions 60 a and 60 a are in a state along the left and right end surfaces 18 a and 18 b of the lower cover 18. In this state, the pivoting operation of the two trimming blades 20 and 30 is prohibited, and the trimming blades 20 and 30 are held at the use position extending forward from the main body 2 or the storage position extending rearward.

When the user tilts the lock levers 60, 60 to the unlock position where they abut against the upper stopper wall 64 against the torsion spring 62, the L-shaped bent portions 60a, 60a are the left and right end surfaces 18a of the lower cover 18. , 18a. For this reason, both the trimming blades 20 and 30 can be rotated horizontally around the support shaft 13, and these can be rotated from the use position to the storage position or vice versa.
The sensor 65 is disposed on the lower surface of the main body 2 as in the first embodiment. The sensor 65 also uses a normally closed microswitch and is incorporated in the drive circuit C of the electric motor 10 as in the first embodiment, and performs the same function as in the first embodiment. That is, in a state where both the trimming blades 20 and 30 are located at the use positions, the sensor 65 is turned on and the drive circuit C is held closed. For this reason, when the switch lever 41 is pulled, the electric motor 10 is activated and both the trimming blades 20 and 30 can be operated.
On the other hand, when the lock levers 60 and 60 are tilted to the unlock position to move both the cutting blades 20 and 30 to the storage position, the sensor 65 is turned off and the drive circuit C is opened. For this reason, even if the switch lever 41 is operated by pulling in this state, the electric motor 10 is not started, and therefore both the trimming blades 20 and 30 do not operate.
Thus, by providing the lock levers 60 and 60 as the lock members, the state in which both the trimming blades 20 and 30 are positioned at the use position and the total length of the trimming machine 1 is L1, and the both trimming blades 20 and 30 are Since it can be switched to the state (L1 >> L2) in which the total length of the trimming machine 1 is set to L2 by being positioned at the storage position, it can be stored more compactly than before. Therefore, it can be stored in a smaller storage space than before, and the loading space in the shipping stage of the manufacturer of the trimming machine 1 can be saved to reduce the conveyance cost.
In addition, when both the trimming blades 20 and 30 are moved to the storage position, the sensor 65 is turned off and the electric motor 10 cannot be started. Therefore, it is possible to reliably prevent malfunction during the storage of the trimming machine 1. Can do.

Each embodiment described above can be further modified. For example, the sensors 55 and 65 may be provided as necessary and may be omitted.
Moreover, although the mowing machine 1 of the form which reciprocates the two mowing blades 20 and 30 in the opposite direction to each other was illustrated, it can be similarly applied to the mowing machine of the form of reciprocating only one mowing blade. it can.
Furthermore, the present invention can also be applied to a battery-type trimming machine that does not have the power cord 43.
Although not shown, in the first embodiment, the push button 50 is provided not only on the rear surface of the lower surface of the main body 2 but also on the front surface of the lower surface and in a point symmetrical with respect to the support shaft 13. , 30 in the storage position, the rear surface of the front push button is brought into contact with the rear end surface 18c of the lower cover 18 so that the trimming blades 20, 30 are locked so as not to rotate even in the storage position. can do. In this configuration, when the trimming blades 20 and 30 are positioned at the auxiliary use position, the push buttons come into contact with the left and right ends of the lower cover 18 so that the two trimming blades 20 and 30 cannot rotate at the auxiliary use position. Locked.
According to this embodiment, “when the cutting blade is positioned at the use position, the cutting blade enters the rotation range of the cutting blade to restrict the rotation of the cutting blade, and when the cutting blade is positioned at the storage position, the rotation of the cutting blade A first push button that retracts from within the range and allows the rotation of the cutting blade; and when the cutting blade is positioned at the use position, the rotation of the cutting blade is permitted to exit from the rotation range of the cutting blade; When the trimming blade is positioned in the retracted position, it is specified as “a trimming machine having a second push button that enters the rotation range of the trimming blade and restricts the rotation of the trimming blade”, and is included in a higher concept. can do.

1 is an overall longitudinal sectional view of a trimming machine according to a first embodiment of the present invention. This figure has shown the state which located the cutting blade in the use position. It is a longitudinal cross-sectional view of the main body lower part vicinity of the trimming machine which concerns on 1st Embodiment. This figure has shown the state which located the cutting blade in the use position. It is the figure which looked at the whole trimming machine concerning 1st Embodiment from the lower surface side (arrow (3) direction in FIG. 1). It is the longitudinal cross-sectional view of the whole trimming machine concerning 1st Embodiment. This figure has shown the state which located the cutting blade in the accommodation position. It is a longitudinal cross-sectional view of the main body lower part vicinity of the trimming machine which concerns on 1st Embodiment. This figure has shown the state which located the cutting blade in the accommodation position. It is the figure which looked at the whole trimming machine which concerns on 1st Embodiment from the lower surface side (arrow (6) direction in FIG. 4). It is the figure which looked at the trimming machine which concerns on 1st Embodiment from the lower surface side. This figure shows a state where the trimming blade is located at the auxiliary use position between the use position and the storage position. It is a circuit diagram of a drive circuit. It is the figure which looked at the whole trimming machine concerning 2nd Embodiment from the lower surface side. This figure has shown the state which located the cutting blade in the use position. It is a whole side view of the trimming machine which concerns on 2nd Embodiment. This figure has shown the state which located the cutting blade in the accommodation position. It is the figure which looked at the whole trimming machine which concerns on 2nd Embodiment from the lower surface side (arrow (11) direction in FIG. 10). It is a (12)-(12) line sectional view figure in Drawing 10, and is a figure showing the connection structure of the right and left lock levers in the trimming machine concerning a 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Trimming machine 2 ... Main body 10 ... Electric motor 10a ... Drive gear 11 ... Main body case, 11a ... Bearing part, 11b ... Retaining ring 12 ... Drive wheel, 12a ... Gear part 13 ... Support shaft 14, 15 ... Disc 16 ... Upper cover 17 ... Bearing 18 ... Lower cover, 18a ... Right end surface, 18b ... Left end surface, 18c ... Rear end surface 19 ... Fixing screw 20, 30 ... Trimming blades 20a, 30a ... Cutting edge, 20b, 30b ... Engagement hole 40 ... Handle 40a ... gripping part 40b ... frame 41 ... switch lever 42 ... main switch 43 ... power cord 43a ... rubber cover 45 ... auxiliary handle 46 ... shielding plate 46a ... fixing screw 50 ... push button 50a ... front 51 ... Compression spring 55 ... Sensor C ... Drive circuit 60 ... Lock lever, 60a ... L-shaped bent part 61 ... Support shaft 62 ... Torsion spring 63 ... Stopper wall (for lock position)
64: Stopper wall (for unlock position)
65 ... Sensor L1 ... Total length in use L2 ... Total length in storage state

Claims (4)

A main body having a rotating drive shaft, a handle portion extending rearward from the rear portion of the main body, a long trimming blade attached to the drive shaft of the main body and extending forward of the main body, and the trimming blade as the main body And a lock member that holds the lock member in a use position extending forward, and the lock member is unlocked so that the cutting blade is rotated rearward about the drive shaft, and is stored along the main body and the handle portion. Can be stored in position,
A push button is provided on the lower surface of the main body as the locking member so as to be able to be pushed in the unlocking direction against the spring biasing force, and when the push button is pushed to the locked position by the spring biasing force, the push button Is opposed to the rear end face of the cutting blade and locks the cutting blade in the left and right directions in the use position, while the push button is pushed into the unlocked position against the spring biasing force. A trimming machine configured such that a push button is retracted from within a rotation range of the trimming blade and the trimming blade can be rotated from the use position to the storage position. A main body having a rotating drive shaft, a handle portion extending rearward from the rear portion of the main body, a long trimming blade attached to the drive shaft of the main body and extending forward of the main body, and the trimming blade as the main body And a lock member that holds the lock member in a use position extending forward, and the lock member is unlocked so that the cutting blade is rotated rearward about the drive shaft, and is stored along the main body and the handle portion. Can be stored in position,
A lock lever is provided on the side of the main body as the lock member so as to be tiltable in the unlocking direction on the upper side against a spring biasing force, and when the lock lever is positioned at the lock position by the biasing force, A lever enters the rotation range of the trimming blade and locks the trimming blade in a non-rotatable position at the use position and the storage position, while the lock lever is tilted to the unlock position against the spring biasing force. Then, the trimming machine is configured such that the lock lever is retracted from the rotation range of the trimming blade and the trimming blade can be rotated between the use position and the storage position. 3. The trimming machine according to claim 2 , wherein the lock levers are provided on both side portions of the main body, and when the both lock levers are in the locked position, the two lock levers move the trimming blades from both sides in the rotational direction. A trimming machine configured to be fixed so as not to rotate in both left and right directions at the use position and the storage position. 4. The trimming machine according to claim 1, wherein when the drive shaft is rotated by using the electric motor built in the main body as a drive source and the lock member is unlocked, the electric motor is driven. A trimming machine with a circuit cut off.

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