JP3121759U - Household cultivator - Google Patents

Abstract

Provided is a household cultivator that is lightweight, easy to operate, and easy to handle in a home garden or the like.
A grip portion having a first handle on which an operation switch is installed and a second handle having an angle adjustable attached on the front side thereof, a cultivator main body in which a motor is accommodated, The household cultivator 1 having the blade 4 externally fitted to the shaft 16 interlocked with the motor 20 makes the operation simple and easy to operate, so that the operator can easily perform the cultivation work. Can do.
[Selection] Figure 1

Description

  The present invention relates to a cultivator for cultivating work, and more particularly, to a domestic cultivator that is easy to handle and safe for an operator.

  Conventionally, most of the tillers that cultivate the soil are large machines that are used in fields in agriculture (see, for example, Patent Document 1). It used to cultivate the soil by hand and required a lot of labor.

  Therefore, in recent years, the number of people who rent a field as a hobby has been increasing, and small cultivators for so-called home gardens, which are smaller than agricultural cultivators, are sold by various manufacturers.

JP 2003-189702 A

  However, since these small tillers are miniaturized farming tillers, they are expensive and complicated to use and care. In addition, although it is smaller than that for agriculture, the machine itself is large and heavy, and it cannot be said that it is easy to handle, and is particularly inconvenient for gardening in a home garden or the like. Furthermore, carrying is labor intensive, and it is very difficult for women to carry, especially by themselves. In addition, it is difficult to say that it is suitable for the home because it requires fuel for use.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a domestic field cultivator that is lightweight, easy to operate, and easy to handle in a home garden or the like.

  In order to solve the above problems, the present invention provides the following.

  (1) A gripping portion having a first handle on which an operation switch is installed and a second handle with an adjustable angle attached on the front side thereof, a cultivator main body containing a motor, and the cultivator main body A household cultivator having a blade externally fitted to a shaft that is inserted and interlocked with the motor, wherein the cultivator main body includes a first gear having a gear shaft inserted therein and the motor. A household cultivator comprising: an armature shaft that is provided and engages with the first gear; and a second gear that engages with the gear shaft.

  According to the present invention, a grip portion having a first handle on which an operation switch is installed and a second handle with an adjustable angle attached in front of the handle, a cultivator main body in which a motor is accommodated, and a cultivator Since it has the blade inserted in the main body and externally fitted to the shaft interlocked with the motor, it is possible to provide a household cultivator that is lightweight, easy to operate, and easy to handle.

  That is, by installing the operation switch on the first handle, the operation switch can be operated with the gripping force at the time of gripping the first handle, and thus the operation is simple.

  Further, since the second handle is attached to the grip portion so that the angle can be adjusted, the second handle can be positioned and fixed at an angle at which an operator can easily perform the work. Since the work can be performed by holding the first handle and the second handle adjusted to an arbitrary angle, handling is easy.

  According to the present invention, the cultivator main body includes a first gear in which a gear shaft is inserted, an armature shaft that is inserted in a motor and engages with the first gear, and a first gear that engages in the gear shaft. 2 and the drive source is disposed in the main body of the cultivator, so that the operator does not touch the drive source and can prevent accidents involving the operator's fingers and clothes. Can be used safely.

  (2) Oblique teeth are formed on the first gear, and a helical shaft is formed on the armature shaft. The first gear and the armature shaft are always engaged and interlocked with each other. The household cultivator according to (1), wherein when the first gear is fixed, the first gear and the armature shaft are separated from each other and only the armature shaft rotates.

  According to the present invention, the first gear is formed with oblique teeth, the armature shaft is formed with a helical shaft, and the first gear and the armature shaft are always engaged and interlocked, During work, when the first gear is fixed because the stone, cloth, vinyl, etc. in the soil are tangled with the blade, play between the first gear and the armature shaft, By configuring the armature shaft so that only the armature shaft rotates away from the armature shaft, the blades are linked from the first gear (first gear, gear shaft, second gear, shaft) and the motor rotates (armature). While the rotation of the blade stops automatically, the motor continues to rotate, so that excessive current does not flow through the motor, preventing motor seizure and safe use It can be.

  As described above, according to the present invention, the operation switch can be easily installed by installing the operation switch on the first handle, and the operation can be easily performed by attaching the second handle so that the angle can be adjusted. can do. Further, the structure in which the first gear and the armature shaft are separated from each other can prevent the motor from being seized and can be used safely.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

[Appearance configuration]
FIG. 1 is a diagram showing a perspective view of a domestic cultivator 1 according to an embodiment of the present invention.

  In FIG. 1, a domestic cultivator 1 mainly includes a grip portion 2 having a first handle 11 and a second handle 12, a cultivator main body 3, and a blade 4 externally fitted to a shaft 16. Has been.

  As shown in FIG. 1, the domestic cultivator 1 has a shape in which the whole forms a gentle curve and the lower part expands. That is, the rear surface of the domestic cultivator 1 forms a gentle curve up and down toward the front, and is curved in a substantially semicircular shape from the center of the back to the left and right, and the front is up and down toward the front. In addition to forming a gentler curve than the back surface, it is slightly curved from the front center to the left and right. Since the whole is curved, the handle can be gripped in a state where the upper part is almost horizontal, and the operator can work in an easy posture.

  Moreover, the domestic cultivator 1 has an outer diameter that is small at the top, and an outer diameter that increases toward the bottom, and is formed in a substantially conical shape that is curved as a whole. By adopting such a shape, handling becomes easy and it can be used stably. That is, since the outer diameter of the upper part is small and the domestic cultivator 1 can be gripped and used from directly above, the burden due to its weight is reduced. Moreover, since the outer diameter of the lower part is large, the stability is high and handling is easy.

  The grip portion 2 has a first handle 11 and a second handle 12. An operation switch 14 is installed on the first handle 11 and a curved handle 17 is attached. The upper end of the handle 17 is fixed to the upper end of the first handle 11, and the lower end is fixed below the operation switch 14. Since the operation switch 14 is installed below the first handle 11, the operation switch 14 can be operated with a gripping force when the first handle 11 is gripped. The operation switch 14 presses the operation switch 14 with a gripping force when gripping the first handle 11 by using a pressing type that performs a rotational motion of the motor by pressing and stops the rotational motion of the motor by separating. Therefore, the operation is simple.

  The second handle 12 has a substantially semicircular shape, and the diameter portion is fixed to the grip portion 2. An angle adjusting knob 13 is provided at the center of the diameter portion of the second handle 12.

  FIG. 2 is an exploded perspective view showing the second handle 12 being disassembled.

  In FIG. 2, a rotation shaft 29, an angle adjustment sleeve 28, a washer 27, and an angle adjustment knob 13 are attached to the center of the diameter portion of the second handle 12. By loosening the angle adjustment knob 13, the tightening to the rotating shaft 29 is loosened, and the angle of the second handle 12 can be changed. Then, by tightening the angle adjustment knob 13 after positioning, the rotary shaft 29 is tightened, and the second handle 12 can be fixed at that angle.

  Accordingly, the operator can adjust and fix the second handle 12 to an angle at which the work can be easily performed, and can work by holding the first handle 11 and the second handle 12 adjusted to an arbitrary angle. Therefore, handling becomes easier.

  FIG. 3 is a view showing a state in which the open / close door 15 that opens and closes the accommodating portion 18 of the domestic cultivator 1 is opened. In FIG. 3, a concave accommodating portion 18 is formed on the back surface portion of the cultivator main body 3, and an opening / closing door 15 for opening and closing the accommodating portion 18 is attached. By forming the accommodating portion 18, tools and other small items necessary for work can be accommodated and taken out when necessary.

  The cultivator main body 3 accommodates a motor 20 therein (see FIG. 4). By operating the operation switch 14, electric power is supplied to drive the motor 20, and the shaft 16 interlocked with the motor 20 rotates. Since the motor 20 is driven by electric power supplied from a power source, it does not require fuel such as gasoline and can be used easily.

  The blade 4 is externally fitted to a shaft 16 that interlocks with the motor 20, and is inserted into the cultivator main body 3. When the motor 20 is driven, the interlocking shaft 16 rotates, and the blade 4 fitted on the shaft 16 rotates. The blade 4 includes four outer blades 4a and two inner blades 4b.

  FIG. 4 is a schematic view showing a rotating mechanism of the blade 4, and FIG. 5 is an exploded perspective view thereof.

  4 and 5, when the motor 20 is driven and the helical armature shaft 19 inserted in the motor 20 rotates, a first gear 21 formed with oblique teeth that engage with the armature shaft 19 is formed. Rotates. The gear shaft 22 inserted in the first gear 21 rotates in conjunction with the rotation of the first gear 21, and accordingly, the second gear 25 engaged with the gear shaft 22 rotates. Further, as the second gear 25 rotates, the shaft 16 that engages with the second gear 25 rotates, and the four blades 4a and 4f that are externally fitted to the shaft 16 via the bearing 24 and the holder 23 are rotated. 4b rotates. The blade 4 has six protrusions extending radially from the center, and the tip thereof is refracted inwardly on the outer blade 4a, and the inner blade 4b is alternately refracted on the inner side and the outer side. The inner blade 4b is fixed so that the protruding portions are staggered. By making the blade 4 into such a shape, hard soil can be cultivated efficiently. As described above, the first gear is formed with oblique teeth, the armature shaft is formed with a helical shaft, and the armature shaft 19 is orthogonal to the teeth of the first gear 21. The armature shaft 19 is perforated, but the other gear shaft 22, the second gear 25, and the teeth of the shaft 16 are parallel to each other so as to mesh firmly.

  Here, play is provided between the first gear 21 and the armature shaft 19. During operation, when the blade 4 becomes entangled with stones, cloth, vinyl, etc. in the soil, and the blade 4 cannot be rotated, the first gear 21 and the armature shaft 19 are separated by this play, so that the motor 20 The power is not transmitted to the blade 4 and the rotation of the blade 4 stops. For this reason, seizure due to over-rotation of the motor can be prevented and it can be used safely.

  In addition, the material of the holding part 2 and the cultivator main body 3 is plastic. By using a lightweight material, the total weight of the entire domestic cultivator 1 can be reduced, and even a woman, for example, can easily handle it. As other materials, various materials such as aluminum, titanium, and synthetic resin can be used.

[how to use]
FIG. 6 is a diagram showing a state of tillage work using the domestic field cultivator 1 according to the embodiment of the present invention.

  When using the domestic cultivator 1 according to the embodiment of the present invention, first, the angle adjustment knob 13 attached to the second handle 12 is loosened, and the second handle 12 is adjusted according to the height and physique of the operator. After the angle is adjusted, the angle adjustment knob 13 is tightened to fix the second handle 12 at an arbitrary angle.

  Next, the first handle 11 is grasped with one hand, and the second handle 12 is grasped and grasped with the other hand. The operation switch 14 is operated with the hand holding the first handle 11 to perform tillage work. For example, the motor 20 is driven by pressing the operation switch 14 using the pressing type operation switch 14 that performs the rotational motion of the motor by pressing and stops the rotational motion of the motor by separation, and the blade 4 rotates. Plowing the soil and releasing the hand from the operation switch 14 stops the rotary motion of the motor 20 and stops the rotation of the blade 4.

  When plowing work, if stones, cloth, vinyl, etc. in the soil get entangled with the blade 4, rotation of the blade 4 is automatically stopped and motor seizure can be prevented. be able to.

  As described above, according to the domestic field cultivator according to the present embodiment, the operation is simplified by the operation switch installed on the first handle, and the handling is facilitated by adjusting the angle with the second handle, The burden on the operator can be reduced. Moreover, a tool etc. can be accommodated in an accommodating part. Furthermore, the burn-in of the motor can be prevented and it can be used safely.

  The domestic field cultivator according to the present invention is light in weight, easy to operate, and useful as a device that can be easily handled in a home garden or the like.

It is a figure which shows the perspective view of the domestic field cultivator 1 which concerns on embodiment of this invention. It is a disassembled perspective view which shows a mode that the 2nd handle | steering-wheel 12 was decomposed | disassembled. It is a figure which shows the state which the opening-and-closing door 15 which opens and closes the accommodating part 18 of the domestic field cultivator 1 opened. It is the schematic which shows the rotation mechanism of the blade 4. FIG. FIG. 6 is an exploded perspective view showing a rotation mechanism of the blade 4. It is a figure which shows the mode of the cultivation work using the domestic field cultivator 1 which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Household cultivator 2 Grasping part 3 Cultivator main body 4 Blade 4a Outer blade 4b Inner blade 11 First handle 12 Second handle 13 Angle adjustment knob 14 Operation switch 15 Opening / closing door 16 Shaft 17 Handle 18 Housing portion 19 Armature shaft 20 Motor 21 First gear 22 Gear shaft 23 Holder 24 Bearing 25 Second gear 27 Washer 28 Angle adjustment sleeve 29 Rotating shaft

Claims (2)

A gripping portion having a first handle on which an operation switch is installed and a second handle with an adjustable angle attached to the front handle;
A cultivator main body containing a motor;
A blade that is inserted into the cultivator main body and externally fitted to a shaft that interlocks with the motor;
A household cultivator having
The cultivator main body is
A first gear with a gear shaft inserted;
An armature shaft inserted into the motor and engaged with the first gear;
A second gear engaged with the gear shaft;
A field cultivator characterized by comprising: The first gear is formed with oblique teeth, the armature shaft is formed with a helical shaft, and the first gear and the armature shaft are always engaged and interlocked, 2. The domestic cultivator according to claim 1, wherein when the first gear is fixed, the first gear and the armature shaft are separated from each other and only the armature shaft is rotated.