JP2007044037A - Electric clipping machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric clipping machine designed to readily regulate the clipping height and uniformly clip the whole work area for clipping turf even if the clipping height is regulated. <P>SOLUTION: The electric clipping machine 1 is equipped with a body 3 having a blade 2, a slider 20 set through two body positioning parts 11 and 12 arranged on the front and rear sides at the lower part of the body 3 and having a sliding surface 20b making contact with the object to be clipped and a fastening device 30 for achieving the positioning and fastening of the body 3 relative to the slider 20 by fixing either one of the body positioning parts 11 and 12 arranged on the front or rear side at the lower part and the slider 20. The surface of the blade 2 is arranged in a direction nearly parallel to the sliding surface 20b of the slider 20 and the interval between the slider 20 and the blade 2 can freely be regulated while maintaining the nearly parallel state to the sliding surface 20b of the slider 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric mower, and more particularly to a hand-held electric mower having a mechanism for adjusting the trim height.

  2. Description of the Related Art Conventionally, an electric mower used for mowing grass that grows on the ground is known. In this type of electric mower, for example, a fixed blade and a movable blade are arranged so as to overlap each other, and the movable blade is reciprocated in the lateral direction with respect to the fixed blade, so that the lawn can be trimmed. There is also an electric mowing machine in which two movable blades are arranged in a stacked manner, and the respective movable blades are reciprocated in the horizontal direction and the movable blades are reciprocated in the opposite directions to cut grass. In addition, there is an electric mower that places a fixed blade and a movable blade in an overlapping manner and mows the turf by rotating the movable blade.

  In the electric mowers as described above, there are electric mowers that have been devised in various ways for the purpose of mowing the lawn at a predetermined height (for example, Patent Documents 1 to 3 below). 3).

  As shown in FIG. 10, the electric mower 250 described in Patent Document 1 includes a pair of movable blades 251 that trim the lawn forward, and a main body 253 that includes a handle 252 for the user to operate rearward. And a guard device 254 attached in a bridging manner from the lower side of the handle portion 252 to the front of the main body portion 253. A plurality of stop portions 255 that support the front end portion of the guard device 254 are provided in front of the main body portion 253 in the vertical direction. The guard device 254 has a rear end portion fixed to a lower portion slightly behind the center of the main body portion 253, and a front end portion attached to one stop portion 255 selected by the user among the plurality of stop portions 255. It has become.

  The electric pruning machine 250 described in Patent Document 1 configured in this way can change the angle of the main body 253 by attaching the front of the guard device 254 to the stop 255 selected by the user. As a result, the movable blade 251 tilts in the vertical direction and adjusts the grass cutting height H from the ground G.

  Moreover, the hand-held type mowing machine described in the following Patent Document 2 has a configuration including a pair of movable blades for trimming the lawn forward and a main body unit including a handle unit for a user to operate rearward. ing. A plurality of groove portions are formed in the vertical direction on both sides of the lower front portion of the main body portion, and by engaging a blade cover disposed on the lower front portion of the main body portion with one of the groove portions, the main body The height of the part can be adjusted.

  In the handheld trimming machine described in Patent Document 2 configured as described above, the height of the main body can be changed by attaching the blade cover to one groove selected by the user. Thus, the height of grass clipping from the ground G can be adjusted.

  Moreover, the handheld lawn mower described in Patent Document 3 below includes a drive unit including a fixed blade and a movable blade and an operation unit including an operation handle as separate bodies, and the drive unit is connected to the operation unit. By rotating, the height of the drive unit from the ground can be adjusted.

JP 2002-335761 A Japanese Patent Application Laid-Open No. 2004-261053 Japanese Patent Laid-Open No. 9-135631

  However, since the electric mowing machine described in Patent Document 1 adjusts the cutting height by changing the main body angle and tilting the movable blade, the working surface of the movable blade and the ground are not parallel to each other. In the corner portion, there arises a problem that a portion where the trimming height is not constant occurs.

  Further, since the guard member according to Patent Document 1 covers the front of the movable blade and the main body, there is a problem that the main body tends to become unstable when a load is applied to the handle during use. is doing.

  The present invention has been made in view of the existence of the above-described problems, and the object thereof is to enable easy adjustment of the trimming height and evenness over the entire workplace where the lawn is trimmed even if the trimming height is adjusted. An object of the present invention is to provide an electric mower capable of pruning.

  Another object of the present invention is to provide an electric mowing machine that can easily cut grass at corners surrounded by walls and the like and can reduce the amount of grass remaining.

  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 mower (1) according to the present invention includes a main body (3) including a blade (2) and two main body positioning portions (11, 12) disposed on the lower front side and the rear side of the main body (3). The slider (20) having a sliding surface (20b) that is in contact with the object to be trimmed, the main body positioning portion (11, 12) disposed on the lower front side or the rear side, and the slider (20 ), And a fixing tool (30) that realizes positioning and fixing of the main body (3) with respect to the slider (20), and an electric mowing machine (1) comprising the blade (2) The surface is disposed in a direction substantially parallel to the sliding surface (20b) of the slider (20), and the blade is maintained in a state of being substantially parallel to the sliding surface (20b) of the slider (20). (2) the interval is freely adjusted between characterized.

  In the electric mower (1) according to the present invention, the two main body positioning portions (11, 12) include an engaging member (6) formed on the main body (3), and the engaging member (6). A first main body positioning portion (11) composed of stepped receiving portions (11a) formed at both front end portions of the upper surface of the slider (20) that can be engaged, and a lower rear of the main body (3) And a second main body positioning part (12) having a support part (12c) erected on the rear center part of the upper surface of the slider (20). Can be.

  Further, in the electric mower (1) according to the present invention, the support portion (12c) includes a long hole (12a) extending rearward and obliquely upward, and a lower portion of the inner peripheral surface of the long hole (12a) A step-like engaging portion (12b) for engaging a shaft (30a) included in the fixture (30) may be formed.

  In the electric mower (100) according to the present invention, the main body (103) is formed with an inclined surface (112c) inclined downward from the rear toward the front, and the slider (120) includes the main body. An opposing surface (122a) that slidably contacts the inclined surface (112c) formed on (103) is formed, and the inclined surface (112c) or the slider (120) is formed on the main body (103) or the slider (120). A long hole (112a) having a plurality of engaging portions (112b) extending in a direction substantially parallel to the opposing surface (122a) is formed, and the opposing surface (122a) or the inclined surface (112c) is formed. An inclined surface formed on the main body (103) by installing an engaged portion (130) that engages with the engaging portion (112b) at a position opposite to the elongated hole (112a). (11 c) After sliding one of the opposing surfaces (122a) formed on the slider (120), the engaging portion (112b) and the engaged portion (130) are engaged. By fixing, the space | interval of the said blade (2) with respect to the said slider (120) can be made adjustable.

  The electric mower (100) according to the present invention has one end side locked to the main body (103) and the other end side formed in a substantially parallel direction with respect to the facing surface (122a) of the slider (120). The holding member (190) to be inserted into the elongated locking hole (122b) is provided, and the slider (120) is urged toward the main body (103) by the holding member (190), so that the slider (120 ) Facing surface (122a) and the inclined surface (112c) of the main body (103) can always be in contact with each other by receiving a biasing force.

  Furthermore, in the electric mower (100) according to the present invention, the holding member (190) may be constituted by an elastic member.

  Further, in the electric mower (1, 100) according to the present invention, the blade (2) includes an upper blade (2a) having a plurality of cutting blades (13) in front and a lower portion of the upper blade (2a). A lower blade (2b) having a plurality of cutting blades (13) disposed in front of each other, and a front end portion of the slider (20, 120) is connected to the upper blade (2a) or the lower blade ( 2b) can be arranged in the vicinity of the rear of the root of one of the cutting blades (13).

  Furthermore, in the electric mower (1, 100) according to the present invention, the slider (20, 120) may have inclined portions (21) whose both side portions narrow toward the rear.

  Still further, in the electric mower (1, 100) according to the present invention, the inclined portion (21) is a blade when the inclined portion (21) is moved along the end of the ground (G). The side portion of (2) may be formed so as not to exceed the end portion of the ground (G).

  The summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  In the electric mower according to the present invention, the blade can be adjusted up and down while maintaining a parallel state between the ground and the surface of the blade facing the ground. The pruning operation can be performed. Further, since the slider extends from the front to the rear of the main body, the main body can be stably moved during the trimming operation. Furthermore, since the height of the main body can be easily adjusted and the main body can be positioned simply by removing the fixing tool, the trimming height (height of the main body) can be easily adjusted.

  In addition, the slider has an inclined portion so that both sides of the slider narrow toward the rear, and when the inclined portion is moved along the end of the ground, the side portion of the blade is Since it is formed so as not to cross the end, for example, when trimming the corner part of the turf surrounded by the wall, by performing the trimming work while pressing the inclined part against the wall, the side part of the blade The grass can be easily trimmed without colliding with the wall. At that time, it is possible to reduce the uncut residue as compared with a conventional electric mower.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the 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 each embodiment are essential to the solution means of the invention. Not exclusively.

[First Embodiment]
FIG. 1 is a front view showing the entire structure of the electric pruning machine according to the first embodiment, and FIG. 2 is a plan view showing the entire structure of the electric pruning machine according to the first embodiment. FIG. 4 is a left side view showing the front of the electric pruning machine according to the first embodiment, and FIG. 4 is a view showing the rear of the electric pruning machine according to the first embodiment, particularly in FIG. a) is a right side view of a partial cross-section, and FIG. 4B is an enlarged view of a portion A in FIG. Further, FIG. 5 is a diagram illustrating an example of the operation of the conventional electric mower, and FIG. 6 is a diagram illustrating an example of the operation of the electric mower according to the first embodiment. For ease of explanation, FIG. 1 will be described with the left side as the front and the right side as the rear. FIG. 1 is a diagram in which the knob 31 of the fixture 30 is omitted. In the following description, the internal structure of the main body is the same as that of a general electric mowing machine, and therefore will be described briefly.

  The electric mower 1 according to the first embodiment can be trimmed at a certain height by a user with a single hand and the grass that has grown on the ground. Further, in a trimming operation at a corner portion surrounded by a wall, the trimming operation can be easily performed without causing the blade to collide with the wall, and the remaining grass can be reduced.

  As shown in FIGS. 1 and 2, the electric mower 1 according to the first embodiment is disposed below the main body 3, with a main body 3 provided with a blade 2 that trims the lawn forward and forward. First and second positioning the main body 3 by supporting the main body 3 and moving the surface of the blade 2 in a direction perpendicular to the ground G to adjust the height T of the blade 2 from the ground G. A height adjusting mechanism 10 composed of the main body positioning portions 11 and 12 is arranged on the upper side, and a slider 20 that slides on the lawn growing on the ground G, and the second main body positioning portion 12 on the back of the lower end of the main body 3. And a fixing tool 30 for fixing the main body 3 to the slider 20.

  The main body 3 has a housing 3a formed by abutting left and right split pieces. In front of the housing 3a, a discharge hole 3b for discharging heat generated from a drive unit (not shown) to be described later is formed. The rear portion of the housing 3a is formed of a substantially D-shaped grip portion 4 for the user to grip the main body 3. A drive unit (not shown) such as a motor for driving the blade 2 is built in the housing 3a. Furthermore, a trigger 5 is provided in front of the inner periphery of the grip portion 4. The trigger 5 functions as a switch for driving the drive unit. When the trigger 5 is pressed by the user, the drive unit is activated and the blade 2 is activated.

  In this way, the user operates the trigger 5 while holding the grip portion 4 with one hand, and slides the electric trimming machine 1 on the lawn growing on the ground, thereby making it easy to see the lawn growing on the ground. It is possible to harvest.

  As shown in FIGS. 1 and 2, the blade 2 is installed with respect to the main body 3 so that the surface of the blade 2 is horizontal to the ground (that is, the sliding surface 20 b of the slider 20). Further, the blade 2 is configured so that the locus L of the tip thereof has a substantially fan-shaped upper blade 2a and a lower blade 2b, and the upper blade 2a has a slight gap on the upper surface side of the lower blade 2b. Almost superposed. The upper blade 2 a and the lower blade 2 b are supported by a connecting shaft (not shown) inside the front of the main body 3. The connecting shaft is connected to the drive unit via a connecting member (not shown) such as a gear. The upper blade 2a and the lower blade 2b can swing left and right by a predetermined angle in the width direction of the main body 3 along the surfaces with the connecting shaft as a fulcrum. Then, when the drive unit is driven by the pressing of the trigger 5, the upper blade 2a and the lower blade 2b are swung to the left and right at a certain angle along the respective surfaces around the connection shaft in different directions via the connection shaft. It is designed to repeat dynamic movements.

  A plurality of cutting blades 13 are formed on the tip (front) side of the upper blade 2a and the lower blade 2b. In this way, when the upper blade 2a and the lower blade 2b swing along each other surface, the turf is sandwiched and cut between the cutting blades 13 of the two blades 2a and 2b. The upper blade 2 a and the lower blade 2 b are of a wide type and are wider than the width of the main body 3.

  Further, as shown in FIGS. 2 and 3, engagement members 6 that protrude to the left and right and engage with receiving portions 11 a of a first main body positioning portion 11 described later are formed on both front side portions of the main body 3. ing. As shown in FIGS. 1 and 4, a pair of protruding bodies 7 extending downward are formed at the rear of the main body 3. The projecting body 7 has a circular hole 7a at the center. The projecting body 7 is arranged with a support portion 12c described later interposed therebetween.

  The height adjusting mechanism 10 includes a first main body positioning portion 11 disposed on both sides of the slider 20 at the upper front side, and a second main body disposed on the upper rear side of the slider 20 and substantially at the center in the width direction. The positioning unit 12 and the fixture 30 are provided. The first main body positioning portion 11 includes an engaging member 6 of the main body 3 and a stepped receiving portion 11a formed on both front portions of the upper surface of the slider 20 with which the engaging member 6 engages. Has been.

  On the other hand, the second main body positioning part 12 is provided in the rear center part above the slider 20. The second main body positioning portion 12 includes a projecting body 7 formed on the lower rear side of the main body 3, a support portion 12 c erected on the rear central portion of the upper surface of the slider 20, and a shaft 30 a of the fixture 30. It is composed of Further, the support portion 12c has a long hole 12a extending rearward and obliquely upward, and a step-like engagement with a shaft 30a of the fixture 30 described later is engaged with a lower portion of the inner peripheral surface of the long hole 12a. A joint portion 12b is formed.

  The fixture 30 includes a shaft 30a formed with a thread including a knob 31 at one end, and a nut 32 attached to the thread of the shaft 30a.

  The shaft 30a of the fixture 30 is inserted into the long hole 12a formed in the hole 7a of the pair of projecting bodies 7 and the support portion 12c, and is engaged with the engaging portion 12b of the long hole 12a. Then, the nut 32 is attached to the shaft 30a, the pair of projecting bodies 7 and the support portion 12c are sandwiched between the knob 31 and the nut 32, and the main body 3 is fixed to the second positioning portion 12. As a result, the main body 3 Is fixed to the slider 20.

  Each step between the stepped receiving portion 11a constituting the first main body positioning portion 11 and the stepped engaging portion 12b constituting the second main body positioning portion 12 is ground G (that is, the slider 20). Of the sliding surface 20b), the height of the main body 3 is determined with respect to the ground G (that is, the sliding surface 20b of the slider 20) when the main body 3 is positioned by the height adjusting mechanism 10. The height T of the main body 3 can be adjusted in the vertical direction.

  As shown in FIG. 2, the slider 20 includes a base body 20 a formed in a substantially rectangular shape so as to surround the front, rear, left, and right (whole) of the main body 3. Further, as shown in FIG. 1, the front and rear ends of the base body 20a are bent upward. In this way, when the turf is trimmed, the trimmed turf is easily held on the upper surface of the base 20a.

  Further, the front end portion of the base body 20a is arranged in the vicinity of the rear of the root of the cutting blade 13 of either the upper blade 2a or the lower blade 2b. Conventionally, as shown in FIG. 5, when the corner portion of the turf is surrounded by a wall 56 or the like, the guard device 254 abuts against the wall 56 and the operation range of the main body 3 is also restricted by the guard device 254. Therefore, the lawn mowing residue R, R1 has increased, but according to the electric mower 1 according to the first embodiment, as shown above, the wall 56 or the stone at the end of the lawn mower, Alternatively, even when there is a rock or the like and the end portion of the lawn mower is trimmed, the slider 20 is more than the blade 2 because the front end portion of the slider 20 is disposed behind the cutting blade 13. The turf mowing operation can be easily performed without first contacting the wall or the like. Further, in the corner (corner portion) of the lawn mower, it is possible to reduce the uncut residue compared to the conventional electric mower. Further, as shown in FIG. 2, the width W of the slider 20 is formed to be the same as or slightly smaller than the trimming width Y of the blade 2. By adopting such a configuration, the height of the blade 2 from the ground G does not change as the slider 20 rides on the uncut grass, so that the cutting height is always stable. Further, since the end in the width direction serves as a mark at the time of trimming and the amount of uncut can be reduced, an efficient trimming operation can be performed. The trimming width Y is not the maximum differential width between the upper blade 2a and the lower blade 2b but the maximum width Y with which the outermost cutting blades 13 of the upper blade 2a and the lower blade 2b are engaged.

  Further, the base body 20 a is formed extending from the lower front side to the rear side of the main body 3. In this way, the main body 3 is stable even when a downward downward pressing force is applied to the gripping part 4, so that when the user grips the gripping part 4 and trims the turf, a stable and easy lawn Pruning work can be performed.

  Further, the rear sides of the both side portions of the base body 20 a have inclined portions 21 formed so as to be gradually narrowed in the width direction of the main body 3. As shown in FIG. 2, the inclined portion 21 has a swing width when the blade 2 is operated within a range surrounded by a line S extending along the inclined portion 21 (the upper blade 2a or the lower blade when the blade 2 is operated). 2b), and preferably the inclined portion 21 is moved along the end of the lawn mower growing on the ground G as shown in FIG. In this case, the side of the blade 2 is formed so as not to exceed the end of the lawn mower.

  If the base body 20a is configured as described above, for example, when the wall 56 exists at the end of the lawn mower as shown in FIG. 6, the cutting work is performed while pressing the inclined portion 21 against the wall 56. The grass 2 can be easily trimmed without placing the blade 2 against the wall 56. Further, at the corner (corner portion) of the lawn mower, it is possible to reduce the remaining cuttings r and r1 as compared with the conventional electric mower. Further, in the lawn mowing work in a narrow place or around a stone with an irregular turf surface, the rear side of the slider 20 is formed narrowed, so that the operating range of the electric mower 1 is widened. Can reduce the amount of uncut grass.

  Next, a detailed description will be given of the case of adjusting the grass cutting height.

  In order to adjust the grass cutting height, the height from the ground G to the blade 2 may be changed. First, the engaging member 6 in front of the main body 3 constituting the first main body positioning portion 11 is received. Next, the shaft 30a of the fixture 30 of the second body positioning portion 12 is engaged with the predetermined position of the engaging portion 12a corresponding to the receiving portion 11a. Let Then, the fixing tool 30 is firmly tightened to fix the main body 3 to the second main body positioning portion 12. When adjusting the grass cutting height again, the height of the main body 3 can be easily adjusted by loosening the fastening by the fixture 30 and changing the engagement position again.

  As described above, the electric trimming machine 1 according to the first embodiment loosens the fastening of the fixing tool 30, thereby reducing the ground G (that is, the sliding surface 20 b of the slider 20) and the ground G (that is, the slider 20. It is possible to easily adjust the height of the main body 2 while maintaining a substantially parallel state between the surface of the blade 2 facing the sliding surface 20b).

  Subsequently, the operation of the electric mower according to the first embodiment will be described in detail.

  In the electric mower 1 according to the first embodiment, the user presses the trigger 5 while holding the grip portion 4 with one hand, drives the drive portion to operate the blade 2, and presses the main body 3 downward. However, the turf can be trimmed at a certain height by moving the main body 3 forward and sliding the slider 20 on the lawn.

  As described above, the electric pruning machine 1 according to the first embodiment includes the main body 3 including the blade 2 and the two main body positioning portions 11 and 12 disposed on the lower front side and the rear side of the main body 3. By fixing the slider 20 provided with the sliding surface 20b in contact with the object to be trimmed and the main body positioning portions 11 and 12 disposed on the lower front or rear and the slider 20, the slider 20 is fixed. And a fixture 30 that realizes positioning and fixing of the main body 3 with respect to the slider 20. The surface of the blade 2 is disposed in a substantially parallel direction with respect to the sliding surface 20b of the slider 20, and is maintained substantially parallel to the sliding surface 20b of the slider 20 with the blade 2. The feature is that the interval is adjustable.

  The electric pruning machine 1 according to the first embodiment configured as described above faces the ground G (that is, the sliding surface 20b of the slider 20) and the ground G (that is, the sliding surface 20b of the slider 20). Since the blade 2 can be adjusted up and down while maintaining a substantially parallel state with the surface of the blade 2, it is possible to perform the cutting operation at a fixed cutting height up to the end of the lawn mower. .

  Further, since the slider 20 is formed to extend from the front to the rear of the main body 3, the main body 3 can be stably moved during the trimming operation.

  Furthermore, in the electric mowing machine 1 according to the first embodiment, the height of the main body 3 can be easily adjusted and the main body 3 can be positioned simply by loosening the fixing tool 30. (Height) is easy to adjust.

  Furthermore, an inclined portion 21 is formed so that both side portions of the slider 20 narrow toward the rear, and when the inclined portion 21 is moved along the end portion of the ground G, the blade For example, when cutting the corner portion of the turf surrounded by the wall 56, the side portion 2 is trimmed while pressing the inclined portion 21 against the wall 56. By performing the work, it is possible to easily perform the lawn mowing work. In that case, compared with the conventional electric mowing machine, the remaining cutting can be reduced.

[Second Embodiment]
In the electric pruning machine 1 according to the first embodiment described above, the two main body positioning portions 11 and 12 include the engaging member 6 formed on the main body 3 and the slider 20 to which the engaging member 6 can be engaged. 1st main body positioning part 11 comprised from the step-shaped receiving part 11a formed in the both ends of the upper surface front of this, the protrusion 7 formed in the lower back of the main body 3, and the back of the upper surface of the slider 20 The case where it comprised from the 2nd main body positioning part 12 which has the support part 12c standingly arranged by the center part was demonstrated. The electric pruning machine 1 according to the second embodiment to be described next will explain an example of two main body positioning units having a form different from that of the first embodiment. In addition, about the member which is the same as that of the case of 1st Embodiment mentioned above, or similar, the same code | symbol may be attached | subjected and description may be abbreviate | omitted.

  FIG. 7 is an external front view of the electric mower 100 according to the second embodiment, and shows a state where the main body 103 is at the lowest position with respect to the slider 120. FIG. 8 is a plan view of the electric pruning machine 100 according to the second embodiment. Further, FIG. 9 is an external front view of the electric pruning machine 100 according to the second embodiment, and shows a state in which the main body 103 is at the highest position with respect to the slider 120. Further, the blade 2 of the electric mower 100 according to the second embodiment can trim the lawn with the lower blade 2b serving as a fixed blade and the upper blade 2a serving as a rotating blade. In FIG. 8, illustration of the power cord and the blade portion is omitted.

  The main body 103 of the electric mower 100 according to the second embodiment is formed with an inclined surface 112c that is inclined downward from the rear to the front. The main body 103 has a long hole 112a in which a plurality of engaging portions 112b extending in a direction substantially parallel to the inclined surface 112c is formed.

  On the other hand, the slider 120 is formed with an opposing surface 122a that slidably contacts an inclined surface 112c formed on the main body 103, and the engaging surface is located at the position of the opposing surface 122a facing the elongated hole 112a. An engaged portion 130 that engages with 112b is provided. The engaged portion 130 rises from both the left and right sides of the slider 120 and has substantially triangular side arm portions 133 and 133 extending so that the upper portion is higher than the opposing surface 122a, and the pair of arm portions 133 and 133, respectively. And a shaft 130a connected to the through hole formed in the. The shaft 130a has a thread groove 130b cut at the shaft end, and the thread groove 130b is screwed into the nut 32 embedded in the through hole of the arm portions 133 and 133, thereby the slider 120. The shaft 130a is securely fixed to the arm portions 133, 133 of the arm. Further, as indicated by a two-dot chain line in FIG. 8, a knob 130c may be provided at the other end of the shaft 130a.

  As described above, the shaft 130a fixedly installed on the slider 120 engages with the wavy engaging portion 112b formed on the main body 103 side, whereby the slider 120 can be positioned with respect to the main body 103. Yes. That is, after sliding one of the inclined surface 112c formed on the main body 103 and the opposing surface 122a formed on the slider 120, the engaging portion 112b and the shaft 130a of the engaged portion 130 are engaged. Thus, the positioning of the main body 103 and the slider 120 is completed. Note that the disengagement and movement of the shaft 130a from the engaging portion 112b can be easily performed by gripping the knob 130c.

  The main body 103 and the slider 120 that have been positioned need to be securely fixed to each other. In the electric mower 100 according to the second embodiment, the holding member 190 is provided as a fixing means for the main body 103 and the slider 120. The holding member 190 is a member having the functions of the first main body positioning unit 11 and the fixture 30 in the first embodiment. Next, the holding member 190 will be described in detail.

  The holding member 190 is made of a wire having elasticity, and is formed in a substantially V shape in a front view and a substantially U shape in a plan view. The holding member 190 is formed with ring portions 190 a at both ends of a substantially U shape in plan view, and the ring portions 190 a are protruded integrally with the main body 103 from both side surfaces of the main body 103. The holding member 190 is securely fixed to the main body 103 by engaging with the shaft 103a and fixing with the fixing screw 150 via the washer 140.

  On the other hand, the substantially U-shaped curved portion of the holding member 190 is inserted and installed in a locking elongated hole 122b formed so as to penetrate in a substantially parallel direction to the facing surface 122a of the slider 120. The locking long hole 122b is formed to be slightly larger than the wire diameter of the holding member 190, and the holding member 190 is configured to be slidable within the locking long hole 122b. .

  As described above, when the holding member 190 inserted and installed in the locking elongated hole 122b is attached to the main body 130, the opening angle of the substantially V-shaped V-shape when viewed from the front is θ. In the state before mounting, the V-shaped opening angle is formed to be θ-α degrees. By adopting such an angle setting, when the holding member 190 is attached to the main body 130, an elastic force corresponding to α degrees acts on the engaging portion between the locking long hole 122b and the holding member 190. Therefore, the holding member 190 biases the slider 120 toward the main body 130, so that the opposed surface 122 a of the slider 120 and the inclined surface 122 a of the main body 130 are always in contact with each other by receiving a biasing force. Thus, a certain fixed state of the slider 120 with respect to is maintained.

  With the configuration of the second embodiment described above, it is possible to adjust the interval of the blade 2 with respect to the slider 120 very easily as compared with the case of fixing with fastening means such as bolts. That is, by applying a downward force to the slider 120, the engaged state between the shaft 130a and the engaging portion 112b of the engaged portion 130 is once released, and the shaft 130a is moved forward or backward to move another engagement. It is possible to easily adjust the distance between the slider 120 and the blade 2 simply by reengaging the joint portion 112b.

  Further, in the case of the configuration of the second embodiment, in the case of fixing by a fastening means such as a bolt, an abnormality such as a drooping phenomenon of the slider 120 that may occur when the tightening force of the bolt is weak also occurs. Therefore, it can be said that the configuration is very suitable in terms of safety.

  In the second embodiment described with reference to FIGS. 7 to 9, the configuration in which the shaft 130a is moved and positioned and held only by the holding member 190 has been described. For example, the shaft 130a is configured as a screw shaft, It is also possible to adopt a configuration in which the arm portions 133 and 133 and the slider 120 can be fastened and fixed.

  Further, a groove 122c having a rectangular cross section extending in the front-rear direction (left-right direction in FIG. 8) with respect to the substantially center position of the facing surface 122a of the slider 120 is formed, while being formed in the second main body positioning portion 112. For the inclined surface 112c, a convex portion 112d having a rectangular cross section that fits in the groove 122c is formed, and the groove 122c and the convex portion 112d are slidably engaged with each other. Is possible. The engagement between the groove 122c and the convex portion 112d can prevent the lateral displacement between the main body 103 and the slider 120.

  As mentioned above, although preferred embodiment of this invention was described, the technical scope of this invention is not limited to the range as described in said each embodiment. Various modifications or improvements can be added to the above embodiments. For example, the blade 2 described in the first embodiment includes a pair of movable blades (upper blade 2a and lower blade 2b), but the lower blade 2b is fixed and only the upper blade 2a is the upper surface of the lower blade 2b. May be swung.

  In the electric trimming machine 1 according to the first embodiment, the second main body positioning unit 12 may be disposed in front of the slider 20 and the first main body positioning unit 11 may be disposed behind. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

It is a front view showing the whole electric trimming machine structure concerning a 1st embodiment. It is a top view showing the whole electric trimming machine structure concerning a 1st embodiment. It is a left view which shows the front of the electric trimming machine which concerns on 1st Embodiment. It is a figure which shows the back of the electric trimming machine which concerns on 1st Embodiment, Comprising: (a) in FIG. 4 is a right view of a partial cross section, (b) in FIG. 4 is A of FIG. 4 (a). It is a partial enlarged view. It is a figure which shows an example of operation | movement of the conventional electric mower. It is a figure which shows an example of operation | movement of the electric pruning machine which concerns on 1st Embodiment. It is an external appearance front view of the electric trimming machine which concerns on 2nd Embodiment, and is the figure which showed the state which has a main body in the lowest position with respect to a slider. It is a top view of the electric trimming machine which concerns on 2nd Embodiment. It is an external appearance front view of the electric trimming machine which concerns on 2nd Embodiment, and is the figure which showed the state which has a main body in the highest position with respect to a slider. It is a figure which shows the whole structure of the conventional electric mower.

Explanation of symbols

  1 Electric trimming machine, 2 blades, 2a upper blade, 2b lower blade, 3 main body, 3a housing, 3b discharge hole, 4 gripping part, 5 trigger, 6 engaging member, 7 projecting body, 7a hole, 10 height adjustment Mechanism, 11 First body positioning part, 11a Receiving part, 12 Second body positioning part, 12a Long hole, 12b Engaging part, 12c Support part, 13 Cutting blade, 20 Slider, 20a Base body, 20b Sliding surface, 21 Inclined part, 30 Fixing tool, 30a Shaft, 31 Knob, 32 Nut, 56 Wall, 100 Electric trimming machine, 103 Main body, 112 Second main body positioning part, 112a Long hole, 112b Engaging part, 112c Inclined surface, 112d Protruding part, 120 slider, 122a facing surface, 122b long slot for locking, 122c groove, 130 engaged part, 130a shaft, 133 arm part, 19 Holding members, 190a limbus, 250 electric hedge clipper, 251 movable blade, 252 handle section, 253 main body, 254 guard device, 255 retaining portion, G ground.

Claims (9)

A body with a blade;
A slider provided with a sliding surface in contact with a trimming target, and installed through two main body positioning portions disposed on the lower front and rear of the main body,
A fixing tool that realizes positioning and fixing of the main body with respect to the slider by fixing either one of the main body positioning portions arranged at the lower front or rear and the slider;
An electric mower with
The surface of the blade is arranged in a direction substantially parallel to the sliding surface of the slider, and the distance from the blade can be adjusted while maintaining a substantially parallel state with respect to the sliding surface of the slider. Electric mowing machine characterized by that. The electric mower according to claim 1,
The two main body positioning parts are:
A first main body positioning portion composed of an engaging member formed on the main body, and a stepped receiving portion formed on both front ends of the upper surface of the slider to which the engaging member can engage;
A projecting body formed on the lower rear side of the main body, and a second main body positioning portion having a support portion erected on the rear central portion of the upper surface of the slider;
An electric mower characterized by comprising the following. The electric mower according to claim 2,
The support part includes a long hole whose rear side extends obliquely upward,
An electric trimming machine characterized in that a step-like engaging portion for engaging with a shaft provided in the fixture is formed at the lower part of the inner peripheral surface of the elongated hole. The electric mower according to claim 1,
The main body is formed with an inclined surface inclined downward from the rear to the front,
The slider is formed with an opposing surface that slidably contacts an inclined surface formed on the main body,
The main body or the slider has a long hole formed with a plurality of engaging portions extending in a direction substantially parallel to the inclined surface or the opposed surface, and the opposed surface or the inclined surface At the position facing the long hole, an engaged portion that engages with the engaging portion is installed,
After sliding either one of the inclined surface formed on the main body and the opposing surface formed on the slider, the engaging portion and the engaged portion are engaged and fixed, An electric trimming machine characterized in that an interval between the blades relative to a slider is adjustable. In the electric mower according to claim 4,
One end side is locked to the main body, and the other end side is provided with a holding member that is inserted into a long slot for locking formed in a direction substantially parallel to the opposing surface of the slider,
An electric trimming machine characterized in that the slider is urged toward the main body by the holding member, and the opposed surface of the slider and the inclined surface of the main body are always in contact with each other by receiving an urging force. The electric mower according to claim 5,
The electric mowing machine is characterized in that the holding member is made of an elastic member. The electric pruning machine according to any one of claims 1 to 6,
The blade has an upper blade having a plurality of cutting blades in front;
A lower blade having a plurality of cutting blades disposed in front of each other and substantially superimposed below the upper blade;
With
The front end of the slider is
An electric mower characterized by being disposed in the vicinity of the rear of the root of either the upper blade or the lower blade. In the electric mower according to any one of claims 1 to 7,
The slider is
An electric mowing machine characterized in that both sides have inclined portions that narrow toward the rear. The electric mower according to claim 8,
The electric mowing machine is characterized in that the inclined portion is formed so that the side portion of the blade does not exceed the end portion of the ground when the inclined portion is moved along the end portion of the ground. .

Images