JP2001320931A - Portable shore mower - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the workability and operability, reduce the labor burden on the operator, improve the work efficiency, etc. by enabling both push and pull cutting. Provided portable shore mower. A cutting blade (10), a motor (31) for driving the cutting blade (10), a shield cover (11) covering a part or all of the cutting blade (10), and a ground (N, M). A handle (50) is vertically swingably connected to a mowing work section (5) having a grounding member (20, 20) capable of sliding on the front cover. A mouth (Sf) and a rear mowing opening (Sr) are formed so that both mowing and pruning can be performed by the mowing work section (5).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relatively small and lightweight portable shore mower, which can be easily moved by hand by an operator, and more particularly to grass growing on a slope on a high shore. The present invention relates to a portable shore mower suitable for cutting grass.

[0002]

2. Description of the Related Art Conventionally, as a shore mower, for example, as can be seen in Japanese Patent Publication No. 62-61290, a body with wheels on which a motor is mounted and an upper surface (flat surface) of the shore
A main cutting blade for cutting grass growing on the hill, and a side cutting blade for cutting grass growing on the slope (slope) of the shore. The power of the prime mover is reduced by a reduction gear or a transmission shaft. The main body and the side blades are transmitted to the main and side cutting blades through a power transmission mechanism, and are simultaneously driven to rotate, while the aircraft is running on the upper side of the shore. It is common to cut the grass at the same time.

[0003] In such a conventional general shore mower, it is assumed that the machine is run with the body positioned on the upper surface of the shore, and the vertical width of the slope by the side cutting blade is large. Depends only on the rotation diameter of the side cutting blade, so it can handle normal shores (low shores),
The cutting width of the slope is insufficient on the high banks with large steps.

[0004] In this case, if the main cutting blade and the side cutting blade are positioned on the same plane and the aircraft is driven along a high-sided slope, mowing of the slope cannot be prevented. The slopes on the high banks are extremely dangerous because they have steep slopes and poor scaffolding. In addition, a power transmission mechanism having two cutting blades, a wheeled body equipped with a prime mover, and a relatively long and complicated power transmission mechanism for transmitting the power of the prime mover to both the cutting blades. Need, etc.,
The device configuration is complicated and heavy, the device cost is high, and the workability and operability are not good. Therefore, it was practically impossible to use it for mowing a slope on a high shore.

[0005] In order to solve the problems associated with the conventional shore mower described above, the applicant of the present invention firstly provided a mowing blade and a prime mover such as an air-cooled two-cycle gasoline engine that drives the mowing blade. A shield cover that covers a part or the entirety of the cutting blade, and a grounding member that can slide on the ground, and a mowing work unit in which the prime mover is mounted and held on the shield cover. We have proposed a portable shore mower that is swingably connected (Japanese Patent Application No. 11-300).
630).

[0006] In such a proposed portable shore mower, when mowing a slope on a high shore, an operator usually stands on the upper surface of the high shore with a handle and rotates the cutting blade by a motor. While driving, the mowing work part including the cutting blade and the shield case is positioned at the uppermost part of the high shore, and the ground contact member lands on the high hill slope. If pressed lightly, the mowing work section (ground contact member) slides from the top to the bottom of the slope. At this time, the grass on the slope is cut in the vertical direction by the width corresponding to the rotation diameter by the rotating blade.

Next, in order to cut off the grass growing next to the portion cut as described above, the mowing work portion is once pulled up to the top of the slope, and then the mowing work portion is moved to the next position. Move to the part where the grass to be cut is growing (next to the side), land the grounding member on the top of the slope on the high side in the same manner as above, and lightly push the mowing work part with the operating rod, The mowing work section (ground contact member) is slid from the top to the bottom of the slope, and thereafter, grass growing on the slope is similarly moved by a width corresponding to the rotation diameter of the cutting blade in the vertical direction. Try to reap.

[0008] As described above, the use of the above-mentioned portable shore mowing machine only requires the worker to move laterally on the upper surface of the high shore and does not need to descend on the slope. Can be performed safely, easily, and quickly. Also, since the weight of the entire mowing work section is received on the ground (mowing surface) via the grounding member, the burden on the worker is reduced, and the work is not self-propelled. A break can be arbitrarily performed, and as a result, labor required for mowing can be reduced.

[0009]

By the way, in the portable shore mower as described above, the mowing work section is usually advanced, that is, while the mowing work section is being pushed (the high hill slope is lowered by utilizing gravity). It is designed to cut the grass (while sliding), that is, to perform so-called push-cutting. However, the so-called push-cutting is performed by retracting the grass-cutting work unit, that is, cutting the grass while pulling it toward the near side. Absent.

However, in particular, when mowing work is performed on the upper surface of a high shore or the like, the pruning improves the workability and operability, and may reduce the labor burden of the operator. Also, when performing mowing work such as a high hill slope, after performing the push mowing by moving the mowing work section forward, when pulling up, if the grass growing next to the mowing is to be cut by the mowing, Work efficiency may be improved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned matters, and an object of the present invention is to improve both workability and operability by enabling both pushing and pruning. Another object of the present invention is to provide a portable shore mower that can reduce the labor burden on the user and improve the work efficiency.

[0012]

In order to achieve the above object, a portable shore mower according to the present invention basically comprises a cutting blade, a prime mover for driving the cutting blade, and one of the cutting blades. A handle is connected to a mowing work unit having a shield cover that covers part or the whole thereof and a ground contact member that can slide on the ground so that the handle can swing up and down.

According to a first aspect of the present invention, there is provided the portable shore mower according to the first aspect, wherein the shield cover is formed with a front grass mowing opening and a rear grass mowing opening. It is characterized in that both pushing and pruning can be performed.

[0014] In a preferred aspect, the front upper surface and the rear upper surface of the shield cover are inclined obliquely upward so as to open the front grass cutting opening and the rear grass cutting opening largely. In another preferred aspect, a biasing member is provided for pulling the distal end of the handle forward.

In still another preferred aspect, a swing support shaft of the handle is disposed near a central portion of the shield cover as viewed in the front-rear direction.
The shape is substantially symmetrical with respect to a vertical plane passing through the swing support shaft. In the portable shore mower according to the first aspect of the present invention having the above-described configuration, the front cover and the rear cover are formed in the shield cover. While cutting grass (while sliding downwards using gravity on a high hill slope), it is also possible to cut and push grass, and also to cut and cut grass while pulling the mowing work section toward you. Therefore, for example, in a place where mowing work is performed on the upper surface of a high shore, by performing the above-mentioned pruning, workability and operability are improved, and the labor burden on the operator can be reduced. When mowing the surface, it is possible to alternately press and mow (sliding down) and mow (raise), as a result,
Work efficiency can be improved.

On the other hand, a portable shore mower according to a second aspect of the present invention has the same basic structure as that of the first aspect, but the handle is arranged around a pivot shaft thereof. It is characterized in that it can be reversed in the front-rear direction. In a preferred aspect, an urging member is provided for pulling the tip portion forward when the handle is tilted rearward and pulling the tip portion rearward when the handle is tilted forward. Is done.

In another preferred embodiment, a swing support shaft of the handle is disposed near a central portion of the shield cover as viewed in the front-rear direction, and at least a front portion of an upper surface of the shield cover is mowing. It is made to incline up diagonally so that the mouth is greatly opened.

In still another specific preferred embodiment, the biasing member has one end locked to the distal end of the handle, and the other end fixed to the front of the swing support shaft in the shield cover. It is constituted by a tension coil spring which is selectively locked via a locking tool to the front locking portion and the rear locking portion provided on the side and the rear side.

In a more preferred aspect, a locking position switching mechanism for arbitrarily switching a locking position of the other end of the urging member to one of the front locking portion and the rear locking portion is provided. Is done. Preferably, the locking position switching mechanism is a guide member formed with the locking tool and a guide groove for slidingly guiding the locking tool between the front locking portion and the rear locking portion. And is provided.

Preferably, the locking member is a locking pin that is inserted into and locked from the locking portion so as to be freely detachable, and the locking pin is loosely inserted and slides in the guide groove. A cylindrical slider freely held, and a locking urging member for urging the locking pin in a direction in which the locking pin is always inserted and locked in the front locking portion and the rear locking portion. It is configured with.

In a preferred embodiment of the portable shore mower according to the second aspect of the present invention, the handle is reversible in the front-rear direction around the pivot shaft. Even when only the front mowing opening is formed on the shield cover (when there is no rear mowing opening), if the handle is tilted to the rear side, the mowing work unit is advanced (the high hill slope is high). It is possible to mow and push mowing (while sliding downward using gravity), and if the handle is tilted forward, mowing the grass while pulling the mowing work unit toward the front. The mowing can be performed, and therefore, for example, in a place where mowing work is performed on the upper surface of a high shore, by performing the pruning, the workability and operability are improved, and the labor burden of the worker is reduced. It can be.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1, 2 and 3 are a perspective view, a plan view, and a perspective view, respectively, of a main part (a mowing work section) in the first embodiment of the portable shore mower according to the present invention.
A sectional view taken along the line III-III is shown. The portable shore mower 1 according to the first embodiment is a strip-shaped cutting blade 10 and a motor that rotates the cutting blade 10 counterclockwise (in the u direction in FIG. 2) in plan view (FIG. 2). A relatively small and lightweight (displacement is about 20 mL) air-cooled two-cycle gasoline engine 31 (hereinafter referred to as an internal combustion engine 31);
1 is mounted and held via a mounting member 7, and a rectangular-shaped shield cover 11 that covers the cutting blade 10,
Both side plate portions 11L and 11R of the shield cover 11
And a pair of left and right sled-shaped grounding members 20, 20 slidable on the ground (N, M) provided at a lower end of the mowing work unit 5. Both sides of the shield cover 11 in the mowing work unit 5 are provided. A forked front part 51 and a linear rear part 52 connected to the front part 51 are provided on the plate parts 11L and 11R.
(See FIG. 4) is connected to be vertically swingable.

The shield cover 11 has a central portion 11A having a flat upper surface 11a having a U-shaped cross section for holding the internal combustion engine 31 via the mount member 7, and welding or riveting around the central portion 11A. Front grass mowing opening Sf and rear grass mowing opening Sr
Consists of a front portion 11B and a rear portion 11C,
The front upper surface 11b and the rear upper surface 11c of the shield cover 11 are inclined obliquely upward so as to open the front grass cutting opening (Sf) and the rear grass cutting opening (Sr) largely.

A rotary shaft 35 is rotatably suspended in the mount member 7 for mounting and holding the internal combustion engine 31 on the shield cover 11. The lower end of the rotary shaft 35 has the cutting blade 10. Has been fixed. The left and right tip portions 5 of the forked front portion 51 of the handle 50 are also provided.
1a and 51a are provided on both side plates 11L and 11R of the shield cover 11, and swing supporting shafts 55 made of bolts,
Locking pins 62, 62 are attached to the left and right side plate portions 11L, 11R so as to be able to swing vertically in the vertical direction through a front 55, and to pull the front end portion 51a of the front stage portion 51 forward F. Are provided, and the locking pins 62, 6 are provided.
2 and the front end portions 51a, 51a of the forked front portion 51
A tension coil spring 60 as an urging member is stretched between the two.

The pivot 5 of the handle 50
Reference numeral 5 is disposed near the center of the shield cover 11 as viewed in the front-rear direction, and the shield cover 11 has a substantially front-rear symmetric shape with respect to a vertical plane passing through the swing support shaft 55. . In the portable shore mower 1 of the first embodiment having such a configuration, the shield cover 11 is used.
In addition, since the front grass mowing opening Sf and the rear grass mowing opening Sr are formed, it is possible to cut and push grass while advancing the mowing work portion 5 and perform the mowing work. And mowing the grass while pulling the grass toward the front side. For example, when mowing the upper surface of the high shore (M in FIG. 4), the mowing is performed by performing the mowing. Thus, the operability is improved, and the labor burden on the operator can be reduced.

When mowing the high slope slope N,
As shown in FIG. 4, an operator grasps the handle 50 and stands on the high shore upper surface M, while driving the cutting blade 10 by the internal combustion engine 31, the cutting blade 10, the shield cover 11, The mowing work unit 5 including the sled-shaped grounding members 20, 20 and the like is positioned at the uppermost part of the high shore, and the sled-shaped grounding members 20, 20 are landed on the slope N of the high shore. At 50, the mowing work unit 5
Lightly presses the mowing work part 5 (the sled-like grounding member 2).
0, 20) slide down from the top to the bottom of the slope N, and the cutting blade 10 cuts the grass on the slope N in the vertical direction by a width corresponding to the rotation diameter of the slope N. It is.

Next, in order to cut off the grass growing next to the portion cut as described above, the mowing work section 5 is moved laterally next to the side by slightly lifting, etc., and the slope N is slid. By pulling up to the top of the slope N in this manner, the grass on the slope N is cut by the above-described mowing in the vertical direction by the width corresponding to the rotation diameter. Hereinafter, similarly, grass growing on the slope is cut in the vertical direction by the cutting width of the cutting blade.

As described above, if the portable shore mower 1 of the first embodiment is used, the worker only needs to move laterally on the upper surface M of the high shore and does not need to descend on the slope N. Mowing work on high slope slopes can be done safely, easily and quickly. Also, the weight of the entire mowing work section 5 is reduced by the sled-shaped grounding member 2.
Since the work is received on the ground (grass cut surface) via 0 and 20, the burden on the worker is reduced, and the work is not self-propelled. As a result, the labor required for mowing work is reduced.

Further, in addition to the vicinity of the distal end portion 51a of the handle 50 being supported by the shield cover 11 so as to be swingable in the vertical direction, the distal end portion 51a of the handle 50 is connected to the tension coil spring 60. In the case where the ground (the high-side upper surface M and the slope N) is rough land having large unevenness or soft ground, the handle 50 is moved in the vertical direction. The sled-like grounding member 2 is not required.
0, 20 can follow the ground moderately and unevenly on the ground, and the front ends of the sled-shaped grounding members 20, 20 (at the time of forward movement).
Alternatively, when the rear end (at the time of retreat) hits an uneven portion of the ground, a stone, or the like, or is caught by a root portion of grass, or sinks into soft ground, and the like, it comes to a dead end. Even if the mowing part 5 is pushed and pulled strongly, the action of the tension coil spring 60 suppresses the moment of reversing the mowing part 5 in the front-rear direction. As a result, the running performance is improved, Can easily break through.

That is, when a dead end is caused by an obstacle such as a stone when moving forward (during a downward slope), the handle 5
0, the front F side portion or the rear R side portion of the sled-shaped grounding members 20, 20 are lifted off the ground N, M by the urging force (tensile force) of the tension coil spring 60. Since a moment (P or Q direction in FIG. 3) is generated, when the dead end is caused by an obstacle such as a stone, it is not necessary to lift the entire mowing work unit 5 as in the related art. It is possible to get over obstacles such as stones only by pushing and pulling the mowing work unit 5 while swinging in the direction.

The mowing work on the high hill slope N can be performed in the same manner as before, except that the press-cutting and the pruning are alternately performed, as described above. As described above, in the portable shore mower 1 of the first embodiment, both push cutting and pruning can be performed, so that workability and operability are improved, labor burden on the operator is reduced, and work efficiency is improved. Etc. can be achieved.

FIGS. 5, 6, and 7 show a perspective view, a plan view, and a left side view, respectively, of a main part (mowing work section) in a second embodiment of the portable shore mower according to the present invention. ing. The portable shore mower 2 of the second embodiment shown in the drawing also has the same basic configuration as the portable shore mower 1 of the first embodiment,
A strip-shaped cutting blade 10, and a motor as a motor that rotationally drives the cutting blade 10 counterclockwise (u direction in FIG. 6) in plan view (FIG. 6).
An air-cooled two-stroke gasoline engine 32 (hereinafter, referred to as an internal combustion engine 32) having a relatively small size and a light weight (displacement is about 20 mL), the internal combustion engine 32 is mounted and held via a mounting member 7, and the cutting blade 10 is mounted. A shield cover 12 having a rectangular shape in plan view and a pair of left and right sled-shaped ground members 2 provided at the lower ends of both side plates 12L and 12R of the shield cover 12 and capable of sliding on the ground (N, M).
The mowing work unit 6 includes a forked front part 51 and a forked front part 5 on the left and right side plates 12L and 12R of the shield cover 11 in the mowing work part 6.
A handle 50 composed of a linear rear-stage portion 52 (see the first embodiment in FIG. 4) connected to the handle 1 is connected to be swingable in the vertical direction.

The shield cover 12 is provided on the upper surface 1 for holding the internal combustion engine 32 via the mount member 7.
The front upper surface 12a of 2A is inclined obliquely upward so as to open the front mowing opening Sa greatly, and a rubber plate is formed so as to cover the upper half of the rear opening of the shield cover 12. 14 are provided. Therefore, in the portable shore mower 2 of the second embodiment, the mowing work section 6 is moved forward (F) to perform mowing work.

A rotary shaft 35 is rotatably suspended in the mount member 7 for mounting and holding the internal combustion engine 32 on the shield cover 12. A lower end of the rotary shaft 35 is attached to the cutting blade 10. Has been fixed. In the second embodiment, the left and right front end portions 51a, 51a of the forked front part 51 of the handle 50 are pivotally connected to the both side plates 12L, 12R of the shield cover 12 by bolts. They are connected so as to be swingable in the vertical direction via the support shafts 55, and to be reversible in the front-rear direction about the swing support shaft 55. The swing support shaft 5
Reference numerals 5 and 55 are disposed near the center of the shield cover 12 as viewed in the front-rear direction.

Here, when the handle 50 is tilted rearward as shown by the solid line in FIGS. 7 and 8, the distal end 51a is pulled forward F, and the handle 50 As shown by the imaginary line in FIGS. 7 and 8, when it is tilted forward F side,
A tension coil spring 60 as an urging member is provided so as to pull the distal end 51a toward the rear R side.

One end 60a of the tension coil spring 60 is engaged with the tip end 51a of the handle 50, and the other end 60b is pivoted at the side plates 12L and 12R of the shield cover 12. Support shaft 5
Forward 55 across a vertical plane passing through (the center axis Y of 5, 55)
The front locking hole 13A and the rear locking hole 13B symmetrically arranged on the side and the rear R side are selectively locked via a locking tool 71.

Specifically, the locking positions of the other end portion 60b of the tension coil spring 60 are respectively set on the both side plate portions 12L and 12R of the shield cover 12.
A locking position switching mechanism 70 for arbitrarily switching to one of the front locking hole 13A and the rear locking hole 13B is provided.

The locking position switching mechanism 70 can be easily understood by referring to FIG. 9 in addition to FIG.
And a guide groove 72A formed of a front linear portion 72a and a rear arc-shaped portion 72b for slidingly guiding the locking tool 71 between the front locking hole 13A and the rear locking hole 13B. And a guide member 72.
The locking tool 71 is connected to the front end 72ae of the guide groove 72A.
And when it is moved to the rear end 72be, its center axis is aligned with the front locking hole 13A and the rear locking hole 13B.
Are positioned so as to coincide with the center line of, and both ends thereof are fixed to the side plate portions 12L, 12R with screws 73, 73.

As shown in FIG. 10, the locking member 71 includes a locking pin 75 which is inserted into and removed from the locking portions 13A and 13B. 7
5 is loosely inserted, and the cylindrical slider 74 slidably held in the guide groove 72A and the locking pin 75 are always inserted into the front locking portion 13A and the rear locking portion 13B. And a compression coil spring 80 as a locking urging member for urging in the locking direction.

More specifically, the locking pin 75 includes a tip pin portion 75a that is inserted and locked in the front locking portion 13A and the rear locking portion 13B in order from the front end side.
A large-diameter portion 75b, an intermediate portion 75c, and a knurled insertion / removal knob 75d.
4a, a large-diameter step 74b, a large-diameter external thread 74c, a medium-diameter step 74d, and a small-diameter external thread 74e. The large-diameter step 74b is slidably inserted into the guide groove 72A. At the same time, the guide member 72 is
And a clamping plate 76 pressed and fixed to the large-diameter stepped portion 74b with a nut 77 screwed onto the large-diameter male screw portion 74c and screwed therewith. The other end portion 60b of the coil spring 60 is hooked on the middle diameter step portion 74d, and the small diameter male screw portion 74
e, the other end 60 of the tension coil spring 60
In order to prevent b from coming off, a locking plate 78 is externally fitted and a fixing nut 79 is screwed.

In the locking position switching mechanism 70 having such a configuration,
By pinching and pulling the insertion / removal knob 75d of the locking tool 75 outward, as shown by the phantom line in the figure, the front end pin portion 75a has the front locking portion 13A and the rear locking portion 75A. The locking state is released by being pulled out from the portion 13B, and the locking member 7 is released.
5 is the rear end 72be or the front end 7 opposite to the front end 72ae or the rear end 72be of the guide groove 72A.
When the insertion / removal knob 75d is released by sliding along the guide groove 72 up to 2ae, the compression coil spring 80
The distal end pin portion 75a is inserted and locked by the rear locking portion 13B or the front locking portion 13A on the opposite side by the biasing force.

In the portable shore mower 2 of the second embodiment having the above-described structure, the handle 50
However, as shown in FIG. 7 and FIG.
Can be reversed in the front-rear direction with respect to the center. Therefore, even when only the front grass mowing opening Sa is formed on the shield cover 50 (when there is no rear grass mowing mouth as in the conventional case), the above-described configuration is adopted. If the handle 50 is tilted to the rear side (solid lines in FIGS. 7 and 8), the grass is cut while pushing the mowing work section 6 forward (while the high hill slope is slid downward by using gravity). If the handle 50 is tilted forward (in phantom lines in FIGS. 7 and 8), the mowing can be performed while the grass mowing work unit 6 is pulled toward the front side. For this reason, for example, in a place where mowing work is performed on the high shore upper surface M, by performing the pruning, workability and operability are improved, and the labor burden of the worker can be reduced.

Further, by providing the locking position switching mechanism 70, even when the tension coil spring 60 is provided, the inversion operation of the handle 50 can be performed easily and easily. As described above, the embodiments of the present invention have been described in detail. However, the present invention is not limited to the above-described embodiments, and various designs may be adopted without departing from the spirit of the invention described in the claims. It can be changed.

For example, in the second embodiment, the rear mowing opening Sr in the first embodiment is not provided.
Needless to say, the rear grass mowing opening Sr may be provided.

[0045]

As will be understood from the above description, the portable shore mower according to the present invention can perform both push-cutting and pruning, thereby improving workability, operability, and labor of the operator. The burden can be reduced, and the working efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mowing work section of a portable shore mower according to a first embodiment of the present invention.

FIG. 2 is a plan view of a mowing work section shown in FIG. 1;

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a diagram which is used for explaining a slope slope mowing operation on a high shore using the portable shore mower illustrated in FIG. 1;

FIG. 5 is a perspective view showing a mowing section of a portable shore mower according to a second embodiment of the present invention.

FIG. 6 is a plan view of the mowing work section shown in FIG. 1;

FIG. 7 is a left side view of the mowing work unit shown in FIG. 1;

FIG. 8 is an enlarged view around the locking position switching mechanism shown in FIG. 7;

FIG. 9 is a plan view around the locking position switching mechanism shown in FIG. 7;

FIG. 10 is a sectional view taken along the line XX of FIG. 9;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Portable bank mower (1st embodiment) 2 Portable bank mower (2nd embodiment) 5, 6 Mowing work part 10 Cutting blade 11, 12 Shield cover 11b Front upper surface 11c Rear upper surface 11L, 11R , 12L, 12R Side plate portion 12A Upper surface 12a Front portion of upper surface 13A Front side locking hole (front side locking portion) 13B Rear side locking hole (rear side locking portion) 20 Sled ground member 31, 32 Air-cooled two-cycle gasoline engine (Internal combustion engine (motor)) 50 Handle 51 Front stage 51a Tip 52 Back stage 55 Swing support shaft 60 Tension coil spring (biasing member) 60a One end 60b Other end 70 Locking position switching mechanism 71 Locking tool 72 Guide member 72A Guide groove 74 Cylindrical slider 75 Locking pin 80 Compression coil spring (urging member for locking) M Ground (upper surface on high side) N Ground (slope on high side) Sf After the side mowing Tokuchi Sr side mowing Tokuchi Sa front mowing Tokuchi F forward R backwards

Claims (13)

[Claims] 1. A cutting blade (10), a motor (31) for driving the cutting blade (10), a shield cover (11) covering a part or all of the cutting blade (10), and a ground (N, A portable shore mower (1) in which a handle (50) is vertically swingably connected to a mowing work section (5) having a grounding member (20, 20) that can slide on M). The shield cover (11) has a front grass cutting opening (Sf)
And a rear mowing opening (Sr) formed so that both mowing and pulling can be performed by the mowing work section (5). 2. A front upper surface (11b) and a rear upper surface (11c) of the shield cover (11) open the front grass cutting opening (Sf) and the rear grass cutting opening (Sr) largely. The portable shore mower according to claim 1, wherein the mower is inclined obliquely upward. 3. A tip (51a) of the handle (50).
A portable shore mower according to claim 1 or 2, further comprising a biasing member (60) for pulling the front side (F) of the mower. 4. A swing support shaft (55) of the handle (50) is disposed near a central portion of the shield cover (11) as viewed in the front-rear direction.
The portable shore mowing device according to any one of claims 1 to 3, wherein 1) is substantially symmetrical with respect to a vertical plane passing through the swing support shaft (55). Machine. 5. A cutting blade (10), a motor (32) for driving the cutting blade (10), a shield cover (12) covering a part or all of the cutting blade (10), and a ground (N, M) A portable shore mower (2) in which a handle (50) is connected to a mowing work section (6) having a ground contact member (20, 20) capable of sliding on the handle (50) so as to be able to swing vertically. The portable shore mower according to claim 1, wherein the handle 50 is reversible in the front-rear direction about a pivot shaft (55). 6. When the handle (50) is tilted rearward (R), its tip (51a) is pulled forward (F), and the handle (50) is pulled forward (F). When it is overturned, its tip (51
6. A portable shore mower according to claim 5, further comprising a biasing member (60) for pulling a) rearward (R). 7. The swing support shaft (55) of the handle (50) is disposed near a central portion of the shield cover (12) as viewed in the front-rear direction. 6. The portable shore mower according to 6. 8. An upper surface (1) of the shield cover (12).
The mobile phone according to any one of claims 5 to 7, wherein at least the front part (12a) in 2A) is inclined obliquely upward so as to open the grass cutting opening (Sa) greatly. Type mowing mower. 9. The urging member has one end (60a).
Is locked to the distal end (51a) of the handle 50, and the other end (60b) is connected to the shield cover (5).
A locking tool (71) provided on the front locking portion (13A) and the rear locking portion (13B) provided on the front (F) side and the rear (R) side of the swing support shaft (55) in (0). 9. The portable shore mower according to claim 6, further comprising a tension coil spring (60) that is selectively locked via a spring. 10. The front locking portion (13A) wherein the locking position of the other end (60b) of the urging member (60) is changed to the front locking portion (13A).
The portable shore mower according to claim 9, further comprising a locking position switching mechanism (70) for arbitrarily switching to one of the rear locking portions (13B). 11. The locking position switching mechanism (70) includes: the locking member (71); and the locking member (71) being connected to the front locking portion (13A) and the rear locking portion (13B). The guide member (7) in which a guide groove (72A) for sliding and guiding between the guide member (7) is formed.
The portable shore mower according to claim 10, characterized by comprising: 2). 12. The locking tool (71) has a locking pin (75) that is inserted into and locked from the locking portions (13A, 13B), and the locking pin (75) is loosely inserted. In addition, the cylindrical slider (74) slidably held in the guide groove (72A) and the locking pin (75) are always connected to the front locking portion (13A) and the rear locking portion. (13B) a locking urging member (80) for urging in a direction of being inserted and locked in (13B)
The portable shore mower according to claim 11, comprising: 13. The handle (50) comprises a bifurcated front part (51) and a rear part (52) connected to the front part (51). Of the shield cover (1)
1, 12) Left and right side plate portions (11L, 11R, 12L,
The portable shore mower according to any one of claims 1 to 12, wherein the mower is connected to the portable shore mower.