JP2011207083A - Electric trimmer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate worker' gripping and to appropriately adjust a clamping force of a base 20 to a trimmer body 10.SOLUTION: The electric trimmer 100 includes a clamp lever 36 for clamping, in a plane parallel to the axial direction of a trimmer body 10, the trimmer body 10 by rotating it toward the base 20, and unclamping the trimmer body 10 by rotating it in a direction away from the base 20, and a clamping force adjusting mechanism which adjusts a clamping force between the trimmer body 10 and the base 20 when the trimmer body 10 is clamped by rotating the clamp lever 36.

Description

  The present invention relates to an electric trimmer in which a cutting depth of a bit can be adjusted.

  In general, when a groove or edge chamfering is performed on a workpiece, an electric tool called an electric trimmer is used. This type of electric trimmer includes a trimmer body in which a drive motor is housed, a bit that is detachably attached to the trimmer body and is rotationally driven by the drive motor, and a base that slidably holds the trimmer body in an axial direction. It is configured.

  According to the conventional electric trimmer having the basic configuration described above, the bit is rotated by rotating the drive motor, whereby the workpiece can be grooved or edge chamfered. Further, since the trimmer body can be slid in the axial direction with respect to the base and the cutting depth of the bit can be adjusted, it is possible to easily process a groove having a desired depth.

  As a prior art document disclosing this type of electric trimmer, for example, Patent Document 1 below exists.

JP 2002-234001 A

  By the way, in the conventional electric trimmer represented by the above-mentioned Patent Document 1 and the like, the fixing and releasing of the trimmer body with respect to the base performed when adjusting the cutting depth of the bit is installed so as to be rotatable with respect to the base. A mechanism performed by a clamping force of a clamp lever (corresponding to the clamp of Patent Document 1) has been adopted. That is, when adjusting the cutting depth of the bit, first, the trimmer body is fixed to the base by rotating the clamp lever away from the base in a plane perpendicular to the axial direction of the trimmer body. Next, adjust the cutting depth of the bit by sliding the trimmer body in the axial direction with respect to the base, and finally, the clamp lever in the plane perpendicular to the axial direction of the trimmer body. The trimmer body whose position has been adjusted by rotating in the direction has been fixed to the base.

  Next, in the machining operation, the operator adjusts the depth of cut and fixes the trimmer body to the base, and then grips the gripping portion of the base to check the machining status. Processing is performed while visually checking the periphery of the bit from the portion. However, in gripping the gripping portion, the clamp lever protrudes from the gripping portion and is difficult to grip.

However, even if the grip lever is held away from the clamp lever, the direction of travel of the trimmer is not always constant with respect to the operator's posture. It is necessary to change the gripping position so that it is easy to do.
However, since the mechanism of the prior art is configured to rotate the clamp lever in a plane perpendicular to the axial direction of the trimmer body, the circumferential range that can be easily gripped by the operator in the gripping portion is narrow, The operator had to hold a clamp lever that was difficult to hold. Or you had to work in an unreasonable posture by avoiding the clamp lever and holding it.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a new electric trimmer with good operability by facilitating gripping by an operator.

  The present invention will be described below. In addition, in order to make an understanding of this invention easy, the reference number of an accompanying drawing is attached in parenthesis writing, However, This invention is not limited to the form of illustration by it.

  The electric trimmer (100, 200) according to the present invention includes a trimmer body (10) in which a drive motor (12) is accommodated, and is attachable to and detachable from the trimmer body (10) and is rotationally driven by the drive motor (12). A bit (5), a base (20) for slidably holding the trimmer main body (10) in an axial direction, and a base (20) that is rotatably installed with respect to the base (20). A clamp lever (36, 44) for clamping the trimmer body (10) by rotating in the direction of 20) and unclamping the trimmer body by rotating in a direction away from the base (20). An electric trimmer (100, 200), wherein the clamp lever (36, 44) rotates in a plane parallel to the axial direction of the trimmer body (10). And butterflies.

  Further, in the electric trimmer (100) according to the present invention, a rotating member (35) rotated by the clamp lever (36) and provided with screws opposite to each other at both ends, and provided on the base (20). A screw member that is respectively engaged with the both edge portions of the slit and that is formed with screws opposite to each other to be screwed into the screw of the rotating member (35), and the clamp lever (36) is rotated. By the movement, the rotating member (35) is rotated, the screw member and the rotating member (35) are screwed together, and the distance between the two edge portions of the slit is reduced, thereby the base (20). Can clamp the trimmer body (10).

  Furthermore, in the electric trimmer (100) according to the present invention, the clamp lever (36) and the rotating member (35) are released from the fixed state, only the rotating member (35) is rotated, and the screw member and By changing the screwing amount of the rotating member (35) and fixing the clamp lever (36) and the rotating member (35), the trimmer body (10) and the base (20) are fixed. The clamping force can be adjusted.

  Furthermore, in the electric trimmer (200) according to the present invention, the abutting portion (44a) that rotates together with the clamp lever (44) and the abutting portion (44a) abut and are provided on the base (20). A cam (43) provided at least at one of both edge portions of the slit is provided so as not to be rotatable, and the abutting portion (44a) is moved by the rotation of the clamp lever (44). The base (20) can clamp the trimmer body (10) by moving on the cam surface and reducing the distance between the edge portions of the slit.

  Furthermore, in the electric trimmer (200) according to the present invention, a cam that rotates together with the clamp lever (44), and at least one of both end edges of the slit provided in the base (20) that contacts the cam. An abutting portion provided in a non-rotatable manner, and by the rotation of the clamp lever (44), the cam surface of the cam moves on the abutting portion, and between the both end edges of the slit. The base (20) can clamp the trimmer body (10) by reducing the distance.

  Furthermore, in the electric trimmer (200) according to the present invention, the base (20) with respect to the trimmer body (10) can be adjusted by adjusting the amount of advancement / retraction of the abutment portion (44a) in the direction of the cam (43). ) Clamping force can be adjusted.

  Furthermore, in the electric trimmer (200) according to the present invention, the base (20) with respect to the trimmer body (10) can be adjusted by adjusting the amount of advance or retreat of the cam (43) in the direction of the contact portion (44a). ) Clamping force can be adjusted.

  According to the present invention, it is possible to provide a new electric trimmer with good operability by facilitating gripping of an operator.

It is an external appearance front view of the electric trimmer concerning a 1st embodiment. It is an external appearance side view of the electric trimmer concerning a 1st embodiment. It is a longitudinal cross-sectional side view for demonstrating the internal structure of the electric trimmer shown in FIG. 2, and has shown the state which the bit protruded from the lower surface of the base especially. It is the cross-sectional view which showed the structure of the clamp mechanism which concerns on 1st Embodiment. It is an external appearance front view of the electric trimmer which concerns on 2nd Embodiment. It is an electric trimmer which concerns on 2nd Embodiment, and an external appearance front view of the state which the base unclamped the trimmer main body. It is an external appearance side view of the electric trimmer which concerns on 2nd Embodiment. It is a longitudinal cross-sectional side view for demonstrating the internal structure of the electric trimmer shown in FIG. 7, and has shown the state which the bit protruded from the lower surface of the base especially. It is the cross-sectional view which showed the structure of the clamp mechanism which concerns on 2nd Embodiment.

(First embodiment)
Hereinafter, a preferred first embodiment for carrying out the present invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

  FIG. 1 is an external front view of the electric trimmer according to the first embodiment, and FIG. 2 is an external side view of the electric trimmer according to the first embodiment. FIG. 3 is a longitudinal sectional side view for explaining the internal structure of the electric trimmer shown in FIG. 2, and particularly shows a state in which the bit protrudes from the lower surface of the base. Furthermore, FIG. 4 is a cross-sectional view showing the configuration of the clamp mechanism according to the first embodiment.

  As shown in FIGS. 1 to 4, the electric trimmer 100 according to the first embodiment mainly includes a trimmer body 10 that rotatably supports the bit 5 and a base 20 that holds the outer peripheral surface of the trimmer body 10. And a clamp mechanism 30 that fixes and releases the trimmer body 10 with respect to the base 20 when adjusting the cutting depth of the bit 5 with respect to the workpiece.

  The trimmer body 10 has an outer shape formed by a substantially cylindrical casing 11 extending in the axial direction, and a drive motor 12 is accommodated in the casing 11. A pair of bearings 13 and 13 are housed in the casing 11 in order to support the motor shaft 12a of the drive motor 12 in a rotatable state. A switch 14 is installed in the upper part of the casing 11 in order to control the operation or stop of the drive motor 12, while the lower part of the casing 11 is connected to the motor shaft 12 a of the drive motor 12 and the bit 5 A bit holder 15 that transmits the rotational driving force exerted by the drive motor 12 to the bit 5 by chucking is installed. In addition, since the bit holder 15 can attach and detach the bit 5 having various dimensions, the electric trimmer 100 according to the first embodiment can perform cutting of various dimensions and shapes on the workpiece. It is like that.

  The base 20 is a member that holds the trimmer body 10 so as to be slidable in the axial direction (vertical direction of the paper surface), and is a member formed of a transparent resin material. A grip portion 21 is formed above the base 20 so as to hold the casing 11. The grip portion 21 has a slit having a part of a substantially cylindrical shape opened in the vertical direction, and is formed in a substantially C shape in FIG. That is, the grip portion 21 has end edges 21a and 21b that face each other at a predetermined interval in the circumferential direction, and the inner periphery of the grip portion 21 that is substantially C-shaped by adjusting the distance between the end edges 21a and 21b. The diameter of the surface is changed, and the holding force (clamping force) with respect to the trimmer body 10 held by the grip portion 21 is changed.

  In addition, a trunk portion 22 that extends in the vertical direction following the grip portion 21 and an annular support portion 23 that extends in the horizontal direction further below the trunk portion 22 are formed below the base 20. On the front side of the body portion 22, a window 22 a is formed that is opened along the peripheral surface so that the periphery of the bit can be viewed at the time of processing. On the other hand, the peripheral edge of the support portion 23 protrudes radially outward from the outer periphery of the grip portion 21 so that the electric trimmer 100 can be kept upright. In addition, an opening 23 a through which the bit 5 is inserted is formed at the center of the support portion 23.

  Further, the base 20 has a square base plate 24 fixed to the lower surface of the support portion 23. The length of one side of the base plate 24 is approximately the same as the diameter of the support portion 23. An opening 24 a through which the bit 5 is inserted is also formed at the center of the base plate 24.

  The grip portion 21 formed in a substantially C shape in a top view is formed integrally with each of the end edges 21a and 21b and has convex bearing portions 25a and 25b facing each other. . These bearing portions 25a and 25b are provided with members constituting the clamp mechanism 30. Therefore, subsequently, the clamp mechanism 30 according to the first embodiment will be described.

  In the clamp mechanism 30 according to the first embodiment, the bearing portions 25a and 25b have a common center line, and through holes having oval countersink portions 31a and 32a formed on opposite sides of the surfaces facing each other. 31 and 32 are provided. In the through holes 31, 32, a left screw 33b and a right screw 34b are formed on the outer peripheral surface, and the screw members 33, 34 having a head shape fitted into the countersink portions 31a, 32b cannot be rotated. It is inserted. The left screw 33b and the right screw 34b of the screw members 33 and 34 have a small diameter portion 35a, a retaining ring groove portion 35b, a hexagonal portion 35c, and a large diameter portion 35d formed on the outer peripheral surface, and the left screw 35e on the inner peripheral surface. The right screw 35f is screwed with the rotating member 35 formed. The hexagonal portion 35c of the rotating member 35 is fitted into the hexagonal hole 36a provided with the clamp lever 36, and the retaining ring groove portion of the rotating member 35 in a state where the hexagonal hole 36a is fitted into the hexagonal portion 35c. The retaining ring 37 attached to 35b restricts the movement of the rotating member 35 of the clamp lever 36 in the axial direction.

  The diameter of the small diameter portion 35a of the rotating member 35 is equal to or smaller than the inscribed circle diameter of the hexagonal portion 35c, and the diameter of the large diameter portion 35d is larger than the diagonal distance of the hexagonal portion 35c. Accordingly, the retaining ring 37 attached to the retaining ring groove portion 35b of the rotating member 35 is removed from the state in which the hexagonal hole 36a of the clamping lever 36 is fitted to the hexagonal portion 35c of the rotating member 35, whereby the clamp The lever 36 can move in the direction of the small diameter portion 35a. When the clamp lever 36 moves in the direction of the small-diameter portion 35a and the fitting state of the hexagonal hole 36a with the hexagonal portion 35c is released, the rotating member 35 and the clamp lever 36 can rotate independently. .

  The specific configuration of the electric trimmer 100 according to the first embodiment has been described above. Next, a method for adjusting the cutting depth of the electric trimmer 100 according to the first embodiment will be described.

  When adjusting the cutting depth in the electric trimmer 100 according to the first embodiment, first, as shown by an imaginary line in FIG. 3, the clamp lever 36 is moved from the base 20 in a plane parallel to the axial direction of the trimmer body 10. When it is turned away, the turning member 35 is turned, and the screw members 33 and 34 screwed into the left screw 35e and the right screw 35f are moved in the directions protruding from the turning member 35, respectively. Thereby, the space | interval of edge 21a, 21b expands with the elastic restoring force of the holding part 21, and the diameter of the internal peripheral surface of the holding part 21 made into the substantially C shape will expand. Thereby, the fixed state with respect to the trimmer main body 10 of the base 20 is cancelled | released.

  Next, in a state where the fixing state of the base 20 with respect to the trimmer body 10 is released, the cutting depth of the bit is adjusted to a predetermined amount by sliding the trimmer body 10 in the axial direction with respect to the base 20.

  Finally, when the clamp lever 36 is rotated in the direction of the base 20 in a plane parallel to the axial direction of the trimmer body 10, the rotation member 35 is rotated so that the left screw 35e and the right screw 35f are screwed together. Screw members 33 and 34 to be screwed into the rotation member 35, respectively. As a result, the interval between the end edges 21 a and 21 b is reduced, and the diameter of the inner peripheral surface of the grip portion 21 having a substantially C-shape is reduced, whereby the trimmer body 10 is fixed to the base 20.

  Next, a method for adjusting the clamping force of the base 20 on the trimmer body 10 in the electric trimmer 100 according to the first embodiment will be described.

  In the electric trimmer 100 according to the first embodiment, when adjusting the clamping force between the trimmer body 10 and the base 20, first, the retaining ring 37 attached to the retaining ring groove 35 b of the rotating member 35 is removed. Subsequently, the clamp lever 36 is moved onto the small-diameter portion 35a of the rotating member 35, and the fitting state of the hexagonal hole 36a with the hexagonal portion 35c is released. It is in a state where it can be rotated.

  When the clamping force of the base 20 against the trimmer main body 10 is weakened, only the rotating member 35 is rotated by a predetermined angle in the direction in which the screw members 33 and 34 protrude from the rotating member 35 in this state. Thereby, the space | interval of edge 21a, 21b expands with the elastic restoring force of the holding part 21, and the diameter of the internal peripheral surface of the holding part 21 made into the substantially C shape will expand. Thereafter, the clamp lever 36 is moved onto the hexagonal portion 35c of the rotating member 35, and the hexagonal hole 36a is fitted into the hexagonal portion 35c. Here, the clamp lever 36 is rotated in the direction of the base 20 in a plane parallel to the axial direction of the trimmer body 10, and it is confirmed whether an appropriate clamping force is obtained. If the clamping force is not appropriate, the above operation is repeated again so that an appropriate clamping force can be obtained. Finally, by stopping the retaining ring 37 in the retaining ring groove 35b of the rotating member 35, the clamp lever 36 is prevented from moving in the axial direction of the rotating member 35, and the hexagonal portion 35c of the hexagonal hole 36a is prevented. The fitting state is maintained.

  Next, when the clamping force of the base 20 against the trimmer body 10 is increased, only the rotation member 35 is rotated by a predetermined angle in this direction in which the screw members 33 and 34 are screwed into the rotation member 35, respectively. Thereby, the space | interval of the edge 21a, 21b of the holding part 21 reduces, and the diameter of the internal peripheral surface of the substantially C-shaped holding part 21 will reduce. Thereafter, the clamp lever 36 is moved onto the hexagonal portion 35c of the rotating member 35 to fit the hexagonal hole 36a into the hexagonal portion 35c. Here, the clamp lever 36 is rotated in the direction of the base 20 in a plane parallel to the axial direction of the trimmer body 10, and it is confirmed whether an appropriate clamping force is obtained. If the clamping force is not appropriate, the above operation is repeated again so that an appropriate clamping force can be obtained. Finally, by stopping the retaining ring 37 in the retaining ring groove 35b of the rotating member 35, the clamp lever 36 is prevented from moving in the axial direction of the rotating member 35, and the hexagonal portion 35c of the hexagonal hole 36a is prevented. The fitting state is maintained.

  The preferred first embodiment of the present invention has been described above, but the technical scope of the present invention is not limited to the scope described in the above embodiment. Various modifications or improvements can be added to the embodiment.

  For example, in the first embodiment described above, the left screw 33 b and the right screw 34 b are formed on the outer peripheral surface of the screw members 33, 34, and the left screw hole 35 e and the right screw hole 35 f are formed on the inner peripheral surface of the rotating member 35. Was formed. However, in the present invention, left screw holes and right screw holes may be formed on the inner peripheral surfaces of the screw members 33, 34, and left screws and right screws may be formed on the outer peripheral surfaces of both ends of the rotating member 35. Even in such a configuration, it is possible to realize an electric trimmer that exhibits the same effects as those of the first embodiment described above.

  Further, for example, the fitting portion between the rotating member 35 and the clamp lever 36 according to the first embodiment described above has a hexagonal shape. However, the fitting portion between the rotating member 35 and the clamp lever 36 of the present invention does not have to be hexagonal, and may be formed by, for example, a quadrangle. That is, in the fitting portion between the rotating member 35 and the clamp lever 36 of the present invention, the electric trimmer that exhibits the same function and effect as the first embodiment described above can be used as long as it is configured to be non-rotatable. Can be realized.

  Furthermore, the countersink portions 31a and 32a of the through holes 31 and 32 and the heads of the screw members 33 and 34 according to the first embodiment described above have an oval shape and are non-rotatably inserted. However, the countersunk portions 31a and 32a of the through holes 31 and 32 of the present invention and the heads of the screw members 33 and 34 do not have to be oval, and may be hexagonal, for example. That is, as long as the screw members 33 and 34 are configured to be non-rotatable by insertion, it is possible to realize an electric trimmer that exhibits the same effects as those of the first embodiment described above.

  Furthermore, the rotating member 35 according to the first embodiment described above is provided with a cylindrical large-diameter portion 35d. However, the large-diameter portion 35d of the present invention does not have to be cylindrical, and may be a hexagon, for example, so that the rotating member 35 can be rotated by a wrench when adjusting the clamping force. That is, the large-diameter portion 35d of the present invention is configured as described above as long as the large-diameter portion 35d has a shape that restricts the movement of the rotation member 35 of the clamp lever 36 in the axial direction together with the retaining ring 37. The electric trimmer which exhibits the same effect as the embodiment can be realized.

  It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

(Second Embodiment)
Next, a second preferred embodiment for carrying out the present invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

  FIG. 5 is an external front view of the electric trimmer according to the second embodiment, and FIG. 6 is an electric front view of the electric trimmer according to the second embodiment, with the base unclamping the trimmer body. is there. 7 is an external side view of the electric trimmer according to the second embodiment, and FIG. 8 is a vertical cross-sectional side view for explaining the internal structure of the electric trimmer shown in FIG. The bit protrudes from the bottom surface of the base. Further, FIG. 9 is a cross-sectional view showing a configuration of a clamp mechanism according to the second embodiment.

  The configuration of the electric trimmer 200 according to the second embodiment will be described with reference to FIGS. 5 to 9. The same components as those of the electric trimmer 100 according to the first embodiment are denoted by the same reference numerals, and Description is omitted.

  The grip portion 21 formed in a substantially C shape when viewed from above is formed with convex bearing portions 25a and 25b that are formed integrally with the end edges 21a and 21b and face each other. These bearing parts 25a and 25b are provided with members constituting the clamp mechanism 40. Therefore, subsequently, the clamp mechanism 40 according to the second embodiment will be described.

  In the clamp mechanism 40 according to the second embodiment, the bearing portions 25a and 25b are provided with through holes 41 and 42 having a common center line. In addition, the cam 43 having a center line common to the through hole 41 at the center on the surface opposite to the bearing portion 25b side of the bearing portion 25a and having a hole having substantially the same diameter as the through hole 41 is not rotatable. Is provided. Further, a clamp lever 44 having arm portions 44b and 44c sandwiching the bearing portions 25a and 25b and the cam 43 from both outer sides is provided to be rotatable around the center line of the through holes 41 and 42. A contact portion 44 a that contacts the cam surface 43 a and rotates together with the clamp lever 44 is provided. A special nut 46 having a locking function capable of being fixed at an arbitrary screwing position is inserted into the through-holes 41 and 42 through a pan small screw 45 having a screw 45a formed on the outer periphery of the shaft end. Is screwed into the screw 45a.

  The specific configuration of the electric trimmer 200 according to the second embodiment has been described above. Next, a method for adjusting the cutting depth of the electric trimmer 200 according to the second embodiment will be described.

  When adjusting the cutting depth in the electric trimmer 200 according to the second embodiment, first, as shown by an imaginary line in FIG. 8, the clamp lever 44 is moved from the base 20 in a plane parallel to the axial direction of the trimmer body 10. When rotating away, the contact portion 44a that has been in contact with the high position of the cam surface 43a (FIG. 5) moves to a low position of the cam surface 43a (FIG. 6). Thereby, the space | interval of edge 21a, 21b expands with the elastic restoring force of the holding part 21, and the diameter of the internal peripheral surface of the holding part 21 made into the substantially C shape will expand. Thereby, the fixed state with respect to the trimmer main body 10 of the base 20 is cancelled | released.

  Next, in a state where the base 20 is released in a fixed state with respect to the trimmer body 10, the bit depth of the bit is adjusted to a predetermined amount by sliding the trimmer body 10 in the axial direction with respect to the base 20.

  Finally, when the clamp lever 44 is rotated in the direction of the base 20, the contact portion 44a that has been in contact with the low position of the cam surface 43a moves to a high position of the cam surface 43a. Thereby, the space | interval of the edge 21a, 21b reduces, and the diameter of the internal peripheral surface of the holding part 21 made into the substantially C shape will reduce. As a result, the trimmer body 10 is fixed to the base 20.

  Next, a method for adjusting the clamping force between the trimmer body 10 and the base 20 in the electric trimmer 200 according to the second embodiment will be described.

  In the electric trimmer 200 according to the second embodiment, when the clamping force between the trimmer body 10 and the base 20 is adjusted, the special nut 46 is screwed into the screw 45a formed on the outer peripheral portion of the shaft end of the pan head screw 45. This is done by adjusting the position. That is, when the special nut 46 is turned in the direction in which the contact portion 44a escapes from the cam 43 and the screwing position is adjusted in the direction in which the distance between the end edges 21a and 21b is increased, the clamping force of the base 20 against the trimmer body 10 is increased. On the contrary, when the special nut 46 is turned in the direction in which the contact portion 44a advances in the direction of the cam 43 and the screwing position is adjusted in the direction in which the interval between the end edges 21a and 21b is reduced, the trimmer body of the base 20 The clamping force for 10 is increased.

  The preferred second embodiment of the present invention has been described above, but the technical scope of the present invention is not limited to the scope described in the above embodiment. Various modifications or improvements can be added to the embodiment.

  For example, the cam 43 according to the second embodiment described above is provided on the bearing portion 25 a so as not to rotate, and the contact portion 44 a is provided so as to rotate together with the clamp lever 44. However, in the present invention, the cam 43 is provided on the bearing portion 25 a so as not to rotate, and the contact portion 44 a does not need to be provided so as to rotate together with the clamp lever 44, and the cam 43 rotates together with the clamp lever 44. It is provided so that it may move, and the contact part 44a may be provided in the bearing part 25a so that rotation is impossible.

  It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

  5 bits, 10 trimmer body, 11 casing, 12 drive motor, 12a motor shaft, 13 bearing, 14 switch, 15 bit holder, 20 base, 21 gripping part, 21a, 21b edge, 22 body part, 22a window, 23 support Part, 23a opening part, 24 base plate, 24a opening part, 25a, 25b bearing part, 30 clamping mechanism, 31, 32 through hole, 31a, 32a counterbore part, 33, 34 screw member, 33b left screw, 34b right screw, 35 rotating member, 35a small diameter part, 35b retaining ring groove, 35c hexagonal part, 35d large diameter part, 35e left thread, 35f right thread, 36 clamp lever, 36a hexagon hole, 37 retaining ring 37, 40 clamping mechanism, 41, 42 Through hole, 43 Cam, 43a Cam surface, 44 Clamp lever, 44a Contact part, 44b, 44c Arm part, 45 Pan head screw, 45a screw, 46 Special nut, 100 Electric trimmer, 200 Electric trimmer

Claims (7)

A trimmer body that houses the drive motor;
A bit detachably attached to the trimmer book and rotated by the drive motor;
A base for gripping the trimmer body in an axially slidable manner;
A clamp that is rotatably installed with respect to the base, clamps the trimmer body by rotating in the direction of the base, and unclamps the trimmer body by rotating in a direction away from the base. Lever,
An electric trimmer equipped with
The electric trimmer, wherein the clamp lever rotates in a plane parallel to the axial direction of the trimmer body. The electric trimmer according to claim 1,
A rotating member that is rotated by the clamp lever and provided with screws opposite to each other at both ends;
A screw member that is locked to both edge portions of the slit provided in the base and formed with screws in opposite directions to be screwed into the screw of the rotating member;
When the clamp lever is rotated, the rotating member is rotated, the screw member and the rotating member are screwed together, and the distance between the both end edges of the slit is reduced, whereby the base becomes the trimmer body. Electric trimmer characterized by clamping. The electric trimmer according to claim 2,
The clamp of the base with respect to the trimmer main body is released by releasing the fixing of the clamp lever and the rotation member, rotating only the rotation member, and changing the screwing amount of the screw member and the rotation member. An electric trimmer provided with a clamp force adjusting mechanism for adjusting force. The electric trimmer according to claim 1,
A contact portion that rotates together with the clamp lever;
The abutting portion is abutted, and at least one of both end edges of the slit provided in the base is provided with a cam that is non-rotatable,
When the clamp lever is rotated, the contact portion moves on the cam surface of the cam, and the base clamps the trimmer body by reducing the distance between the both end edges of the slit. Electric trimmer. The electric trimmer according to claim 1,
A cam that rotates with the clamp lever;
Abutting portions that are in contact with the cam and are provided in a non-rotatable manner on at least one of both end edges of the slit provided in the base;
By rotating the clamp lever, the cam surface of the cam moves on the contact portion, and the base clamps the trimmer body by reducing the distance between the edge portions of the slit. Electric trimmer. The electric trimmer according to claim 4 or 5,
An electric trimmer provided with a clamp force adjusting mechanism for adjusting a clamp force of the base against the trimmer body by adjusting an amount of advance and retreat of the contact portion in the cam direction. The electric trimmer according to claim 4 or 5,
An electric trimmer provided with a clamp force adjusting mechanism for adjusting a clamp force of the base against the trimmer body by adjusting an amount of advance and retreat of the cam in the direction of the contact portion.

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