JP5844660B2 - Walking electric work machine - Google Patents

Description

  The present invention relates to a walking type electric working machine such as a lawn mower or a cultivator driven by an external power source.

  Conventionally, lawn mowers, cultivators, and the like are known as walking-type electric working machines driven by an external power source. Since these are supplied with power from a household power source, which is an external power source, through the power cord, the power cord hinders the work in lawn mowing work and tillage work.

  With regard to such a problem, for example, as disclosed in Patent Document 1 below, a power cord guide device that protrudes in the left-right direction from the handle portion of the lawn mower is equipped, and the power cord is separated from the worker to hinder the work. Techniques have been proposed to prevent this from happening.

Japanese Utility Model Publication No. 60-74519

  However, there is a problem that the storage space during storage increases because the power cord guide device projects in the left-right direction from the handle portion of the lawn mower as in the configuration of Patent Document 1 described above. In addition, it is conceivable to remove the power cord guide device at the time of storage, but a hand tool is required for the removal, which is not very acceptable due to its complexity.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a power cord guide device that does not increase storage space during storage and can be easily removed when not in use. It is to provide a walking type electric working machine provided.

The walking type electric working machine according to the present invention is a walking type electric working machine including a power cord guide device for guiding a power cord connected to an external power source, wherein the power cord guiding device is provided on the left and right sides of the walking type electric working machine. a holding bracket which is movably mounted in the direction, the arm having one end rotatably supported by the holding bracket is provided on the other end of the arm, code guide and supporting the power cord, the It is characterized by providing.

  In the walking electric work machine according to the present invention, the power cord guide device can be detachably attached to the walking electric work machine.

  In the walking type electric working machine according to the present invention, the power cord guide device may be attached to a handle portion of the walking type electric working machine.

  ADVANTAGE OF THE INVENTION According to this invention, a walk type electric working machine provided with the power cord guide apparatus which does not enlarge the storage space at the time of storage can be provided.

It is a perspective view of the lawn mower which concerns on this embodiment. It is a right view of the lawn mower which concerns on this embodiment. It is a rear view of the lawn mower according to the present embodiment. It is a figure which shows the arrow A in FIG. It is a figure which shows the cross section BB in FIG. It is a figure which shows the cross section CC in FIG. It is a rear view of the lawn mower which concerns on this embodiment, and has shown the state which has a power cord on the right side. It is a rear view of the lawn mower which concerns on this embodiment, and has shown the state which has a power cord on the left side. It is a rear view of the lawn mower which concerns on this embodiment, and has shown the accommodation state of the power cord guide apparatus. It is a right view of the lawn mower which concerns on this embodiment, and has shown the storage state.

  Hereinafter, a preferred embodiment for carrying out the present invention will be described with reference to FIGS. 1 to 10 by taking a lawn mower as a walking type electric working machine as an example. The following embodiments do not limit the invention according to the claims, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention.

  FIG. 1 is a perspective view of a lawn mower according to the present embodiment. FIG. 2 is a right side view of the lawn mower according to the present embodiment. FIG. 3 is a rear view of the lawn mower according to the present embodiment. 4 is a view showing an arrow A in FIG. FIG. 5 is a view showing a cross section BB in FIG. FIG. 6 is a view showing a section CC in FIG. FIG. 7 is a rear view of the lawn mower according to the present embodiment, showing a state where the power cord is on the right side. FIG. 8 is a rear view of the lawn mower according to the present embodiment, showing a state where the power cord is on the left side. FIG. 9 is a rear view of the lawn mower according to the present embodiment and shows a stored state of the power cord guide device. FIG. 10 is a right side view of the lawn mower according to the present embodiment, showing a storage state. Moreover, in this specification, for convenience of explanation, the direction of the lawn mower 1 is defined as shown in the figure. That is, when the operator performs the lawn mowing work with the lawn mower 1 of the present embodiment, “front, rear, left, right, up, down” is determined based on the traveling direction of the operator.

  As shown in FIGS. 1 to 3, the lawn mower 1 according to the present embodiment is detachably attached to the main body 10, the handle 30 that is rotatably supported with respect to the main body 10, and the rear of the main body 10. And a glass catcher 38 to be mounted on. The main body 10 includes a housing 11 made of resin, a reel blade 21 that is a lawn mowing blade, a front wheel 61, and a rear wheel 62. A rear end portion of the housing 11 is attached with a glass catcher 38. Part 12 is formed. The rear end surface of the mounting portion 12 is formed as a surface substantially perpendicular to the ground in FIG. The reel blade 21 is connected to a motor, which is a drive source (not shown), via a drive transmission unit including a pulley and a belt.

  The handle portion 30 includes a grip portion 31 that is gripped by an operator and a switch 32 that can be operated by a finger that grips the grip portion 31. When the operator turns on the switch 32, the reel blade 21 is driven by a motor. Is driven to rotate. Below the reel blade 21, a fixed blade that is in sliding contact with the reel blade 21 is provided, and turf grass is cut by the reel blade 21 and the fixed blade. The cut turf grass is discharged from the rear of the main body 10 and is deposited on the glass catcher 38. 1 and 3 and the like, the illustration of the glass catcher 38 is omitted.

  The handle portion 30 is pivotally connected to the main body portion 10 via a handle support portion 33, and includes a work position when performing lawn mowing work (see FIG. 2) and a storage position during storage (see FIG. 10)) can be locked at two rotational positions. Note that the work position when the lawn mowing work of the handle portion 30 is performed is set at an angle of about 45 degrees with respect to the ground. The handle portion 30 includes a pair of left and right large-diameter pipes 34, 34 extending from the handle support portion 33, a grip portion 31 connected to one end side, and the other end side slid into the large-diameter pipes 34, 34. A pair of left and right small-diameter pipes 35, 35 that are movably inserted is provided, and can be expanded and contracted by adjusting the amount of insertion of the small-diameter pipes 35, 35 into the large-diameter pipes 34, 34. Fixing mechanisms 36, 36 are provided at the distal ends of the large diameter pipes 34, 34. The fixing mechanisms 36, 36 hold the two pipes at positions where the large diameter pipes 34, 34 and the small diameter pipes 35, 35 overlap. By applying or releasing the holding force, the small-diameter pipes 35 and 35 can be fixed with a desired insertion amount.

  The right and left fixing mechanisms 36 and 36 are connected by a connection pipe 37, thereby defining a distance between the left and right large-diameter pipes 34 and 34 and increasing the rigidity of the handle portion 30. Further, a power cord guide device 50 described later is installed in the connection pipe 37. In the present embodiment, as shown in FIG. 5, the cross-sectional shape of the connection pipe 37 is an ellipse.

  As shown in FIG. 4, the grip portion 31 has a substantially rectangular shape that is long in the left-right direction, and includes an upper member 31 a that is mainly gripped by an operator, and a lower member 31 b in which a power cord is disposed. ing. A switch 32 and a lock button 32a are provided at the center in the left-right direction of the upper member 31a, and the motor can be started by pushing the switch 32 in a state where the lock button 32a is pushed. The lower member 31 b is provided with a power cord 41 connected to an external power source, and a power feeding cord 42 that is connected to the power cord 41 via the switch 32 and feeds power to the main body 10. As shown in FIG. 7, a female terminal 41a is provided at the tip of the power cord 41. By connecting the extension cord 43 to the female terminal 41a, the female cord 41a is separated from the connection port of the external power source. Lawn mowing work is possible. In the present invention, the power cord 41 and the extension cord 43 are collectively referred to as a power cord.

  As shown in FIG. 4, the power cord guide device 50 is installed at a holding bracket 51 attached to the connection pipe 37, an arm 55 that is rotatably installed on the holding bracket 51, and a tip 55 b of the arm 55. The code guide 57 is provided. The holding bracket 51 is formed of resin and has a mounting portion 52 that is loosely fitted to the outer peripheral surface of the connection pipe 37, and a column portion that protrudes from the center in the left-right direction of the mounting portion 52 toward the front side of the sheet. 53 and support arms 54, 54 formed on the left and right sides of the column portion 53. The arm 55 is formed of a metal linear member, and the base end portion 55a and the tip end portion 55b are bent in an annular shape. The longitudinal dimension of the arm 55 is set slightly shorter than the longitudinal dimension of the connection pipe 37.

  As shown in FIG. 5, the mounting portion 52 of the holding bracket 51 is formed in a substantially C-shaped cross section that opens to the lower side of the paper, and is mounted on the elliptical outer peripheral surface of the connection pipe 37 in a loosely fitted state. Thus, the connecting pipe 37 is slidable in the longitudinal direction, and cannot be rotated around the axis of the connecting pipe 37. The attachment of the holding bracket 51 to the connection pipe 37 can be easily performed by pressing the opening of the mounting portion 52 against the connection pipe 37 and elastically deforming the tongue 52a. Further, the holding bracket 51 can be easily detached from the connection pipe 37 by pulling the holding bracket 51 upward with respect to the connection pipe 37 and elastically deforming the tongue 52a. .

  The base end portion 55 a of the arm 55 is rotatably installed with respect to the column portion 53 by being inserted into the small-diameter portion on the distal end side of the column portion 53 of the holding bracket 51 in a loosely fitted state. Further, a screw 59 is screwed into the tip of the column portion 53 via a washer 58, thereby preventing the arm 55 from falling off.

  As shown in FIG. 6, the support arm 54 of the holding bracket 51 includes an arm portion 54 a that protrudes from the mounting portion 52 to the right side of the paper surface, and a wall portion that protrudes from the tip portion to the upper side of the paper surface. 54b. Further, the upper side of the arm portion 54a in the drawing is formed as an abutment surface 54c with which the arm 55 abuts.

  The cord guide 57 is a member that supports the extension cord 43 at the distal end portion 55b of the arm 55. As shown in FIG. 7, in the present embodiment, the cord guide 57 is an annular member 57a connected to the distal end portion 55b of the arm 55. The clip 57b is connected to the annular member 57a and sandwiches the extension cord.

  Next, the case where the lawn mower 1 performs the lawn mowing work will be described. First, the operator adjusts the amount of insertion of the small-diameter pipes 35 and 35 into the large-diameter pipes 34 and 34 by the fixing mechanisms 36 and 36 of the handle portion 30, and can easily work the height of the grip portion 31 from the ground. Adjust to a correct position.

  Next, the power cord is connected. For connection of the power cord, one end side of the extension cord 43 is connected to the female terminal 41a of the power cord 41 of the lawn mower 1, and the other end side is connected to a connection port of an external power source (not shown). Then, a predetermined position of the extension cord 43 is clamped by the clip 57 b, and the clip 57 b is connected to the annular member 57 a installed at the distal end portion 55 b of the arm 55. In this state, a predetermined amount of sag is generated from the holding position by the clip 57b to the power cord 41.

  In this state, the operator grips the grip portion 31, operates the switch 32 and the lock button 32 a to activate the reel blade 21, pushes the grip portion 31 forward, and advances the lawn mower 1 to perform lawn mowing work. Do.

  In lawn mowing work, the lawn mower 1 is usually used by reciprocating. For this reason, the case where the position of the connection port of the external power supply is on the right side and the case on the left side with respect to the traveling direction is repeated. When the connection port of the external power source is on the right side in the traveling direction, as shown in FIG. 7, the power cord guide device 50 moves to the right side of the connection pipe 37 by the tension of the extension cord 43, and the holding bracket 51 is fixed on the right side. 36 abuts. In this state, the distal end portion 55b of the arm 55 protrudes greatly from the lawn mower 1 to the right side. As a result, the extension cord 43 and the operator are greatly separated, and the extension cord 43 hinders the lawn mowing work. There is no. At this time, the arm 55 is in contact with the right contact surface 54c. Next, as shown in FIG. 8, when the connection port of the external power source becomes the left side of the traveling direction due to the reversal of the traveling direction, the power cord guide device 50 moves to the left side of the connecting pipe 37 by the tension by the extension cord 43. Then, the holding bracket 51 contacts the left fixing mechanism 36, and the arm 55 also rotates to the left with respect to the holding bracket 51 and contacts the left contact surface 54c. In this state, the distal end portion 55b of the arm 55 protrudes greatly from the lawn mower 1 to the left side. As a result, the distance between the extension cord 43 and the operator is greatly separated, and the extension cord 43 prevents the lawn mowing work. Never become. In addition, when the tension | tensile_strength by the extension cord 43 is inadequate and the holding bracket 51 does not move to the left side (or right side) of the connection pipe 37, an operator can also move. Similarly, when the tension by the extension cord 43 is insufficient and the arm 55 does not rotate to the left (or right), the operator can also rotate it.

  Next, the case where the lawn mower 1 equipped with the power cord guide device 50 is stored will be described. When storing, the glass catcher 38 is removed from the mounting part 12 first. Next, as shown in FIG. 10, the handle portion 30 is rotated to the storage position, and in this state, the mounting portion 12 is stored in a state where the end surface is grounded to the floor surface. At this time, as shown in FIG. 9, the storage space is not increased by moving the power cord guide device 50 to a position where the arm 55 does not protrude in the left-right direction of the lawn mower 1. Moreover, since the arm 55 does not protrude in the left-right direction of the lawn mower 1, it does not contact and damage a member stored adjacently.

  Moreover, when removing the power cord guide device 50, the holding bracket 51 is pulled in the removing direction with respect to the connection pipe 37, and the tongue portion 52a is elastically deformed, so that it can be easily removed. Further, when attaching, the holding bracket 51 can be pressed against the connecting pipe 37 in the attaching direction to elastically deform the tongue portion 52a, so that the attachment can be made easily.

  The preferred embodiments of the present invention have been described above, but the technical scope of the present invention is not limited to the technical scope of the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. It is possible. For example, in the above-described embodiment, the power cord guide device 50 is mounted on the handle portion 30, but can be mounted on the main body portion 10.

DESCRIPTION OF SYMBOLS 1 Lawn mower, 10 Main body part, 11 Housing, 12 Mounting part, 21 Reel blade, 30 Handle part, 31 Holding part, 31a Upper member, 31b Lower member, 32 Switch, 32a Lock button, 33 Handle support part, 34 Large Diameter pipe, 35 Small diameter pipe, 36 Fixing mechanism, 37 Connection pipe, 38 Glass catcher, 41 Power cord, 41a Female terminal, 42 Feeding cord, 43 Extension cord, 50 Power cord guide device, 51 Holding bracket, 52 Mounting part, 52a Tongue, 53 support, 54 support arm, 54a arm, 54b wall, 54c contact surface, 55 arm, 55a base end, 55b tip, 57 cord guide, 57a annular member, 57b clip, 58 washer, 59 screws, 61 front wheels, 62 rear wheels

Claims (3)

A walking electric work machine including a power cord guide device that guides a power cord connected to an external power source, wherein the power cord guide device includes a holding bracket that is movably mounted in a left-right direction of the walking electric work machine. an arm having one end rotatably supported by the holding bracket is provided on the other end of the arm, walk-behind electric working machine, characterized in that it comprises a code guide that supports the power cord .   2. The walking electric work machine according to claim 1, wherein the power cord guide device is detachably attached to the walking electric work machine.   The walking power type electric working machine according to claim 1, wherein the power cord guide device is attached to a handle portion of the walking type electric working machine.

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