CN201563383U

CN201563383U - Lawn mower

Info

Publication number: CN201563383U
Application number: CN2009202836173U
Authority: CN
Inventors: 山冈敏成; 聂方杰; 张锦飞
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2009-11-30
Filing date: 2009-11-30
Publication date: 2010-09-01
Anticipated expiration: 2019-11-30

Abstract

The utility model discloses a lawn mower comprising a working head, a long stem for a user to operate and a support device. The working head is supported on the support device; and the working head includes a blade and can rotate along an axis, so that the lawn mower can be switched between a mowing state and a trimming state. When the mower is in the trimming state, the blade is arranged beyond the plane the outer side of the support device is positioned or is arranged within the plane the outer side of the support device is positioned; and when the mower is in a trimming working state, the support device can stably roll or slide on the ground out of the lawn, and the blade can reach the grass in the margin of the lawn and perform mowing.

Description

Grass mower

Technical field

The utility model relates to a kind of grass mower, relates in particular to the grass mower with deburring pattern, belongs to garden class instrument.

Background technology

Grass mower is a kind of garden class instrument commonly used, and it is used to cut the grass on a lawn.This type of grass mower comprises a working head, and this working head is supported on the pair roller usually, and grass mower also has a stock that extends to the machine back upper place, grips and promotes grass mower for the user and advance.Working head comprises a blade, and wherein at least one blade is made reciprocally swinging, and the cooperation of two blades is pruned the lawn.Known ground, this type of grass mower can also be designed to have the function of deburring, by working head is rotated 90 °, makes blade be approximately perpendicular to ground, thereby grass mower is adjusted to the deburring pattern.Under the mode of operation of deburring, the user can repair the edge on lawn, makes lawn edge neat.

Yet, there is defective in existing grass mower, when it is in the deburring pattern, the plane at its blade place is usually located between the plane, two roller outermost places, therefore when carrying out edge trimming to the lawn, if want blade to touch grass, one of them roller just must roll on the lawn, and roll on the ground of another roller outside the lawn, because the ground outside lawn and the lawn is not usually not in one plane, and lawn surface irregularity, so the roller of grass mower can not roll stably, thus cause that blade cuts goes out careless irregular.If make two rollers all roll on the ground outside the lawn, blade does not then reach the lawn so, can't prune.

The utility model content

The purpose of this utility model is: overcome the deficiency that above-mentioned prior art exists, a kind of improved grass mower is provided, this grass mower can be pruned out neat lawn edge.

The grass mower that the utility model disclosed, comprise working head, supply stock and a bracing or strutting arrangement of user's operation, working head is supported on the bracing or strutting arrangement, working head comprises blade, and can be around an axis rotation, make grass mower between mowing pattern and deburring pattern, switch, be in when grass mower under the state of deburring pattern that blade is positioned at outside the plane, place, the outside of bracing or strutting arrangement or is positioned at the plane, place, the outside of bracing or strutting arrangement.

Bracing or strutting arrangement can adopt roller of the prior art, rod or gripper shoe.

Above-mentioned grass mower, its blade is positioned at outside the plane, place, the bracing or strutting arrangement outside or the plane, such structure arrangement makes when cutting the grass on a lawn the edge, the bracing or strutting arrangement of the grass mower ground outside the lawn fully rolls stably or slides, and blade can touch the grass of lawn edge and prune, and the lawn edge of pruning out like this is more neat.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the schematic diagram as the grass mower of a kind of preferred embodiment of the present utility model, and wherein, grass mower is in the mode of operation of mowing.

Fig. 2 is the schematic diagram that grass mower is in the deburring mode of operation.

Fig. 3 is the explosive view of grass mower working head rotational structure.

Fig. 4 is the end view of second cylindrical housings among Fig. 3.

Fig. 5 is the vertical view that grass mower is in the deburring pattern.

Fig. 6 a, 6b are the location state diagrams between blade and the roller.

Fig. 7 a, 7b are the location state diagrams between blade and the roller.

Fig. 8 is the schematic diagram as the grass mower of second kind of embodiment.

Embodiment

As shown in Figure 1, grass mower 10 comprises working head 1, bracing or strutting arrangement, stock 5, wherein, bracing or strutting arrangement is embodied in a pair roller 3, working head 1 is supported on the roller 3 in the mode of cantilever, stock 5 extends to the back upper place of machine, and handle 50 of its terminal formation supplies the user to grip and promote grass mower 10 and advances.The blade 12 that working head 1 comprises motor casing 11 and stretches out from motor casing 11 is equipped with motor and transmission mechanism (not shown) in the motor casing 11, motor drives blade 12 motions by transmission mechanism.

The grass mower 10 that the utility model discloses has mows and two kinds of mode of operations of deburring.As shown in Figure 1, blade 12 is basically parallel to ground, and this moment, grass mower 10 was in the mowing mode of operation.As shown in Figure 2, working head 1 rotates 90 ° around axis A, and blade 12 is basically perpendicular to ground, and this moment, grass mower 10 was in the deburring mode of operation.

Introduce the rotational structure of working head 1 below around axis A.The rear portion of working head 1 has one first cylindrical housings 13, one second cylindrical housings 14 is connected in an end of stock 5, this first, second

cylindrical housings

13,14 has equal diameter, both connect in rotating mode, and have same central axis, axis A is the central axis of two cylindrical housings 13,14.As shown in Figure 3, have between flange 130 and a pair of blind hole 131, two blind holes 131 180 ° at interval on the end face of first cylindrical housings 13, a spring 132 and a ball 133 are housed in each blind hole 131.As shown in Figure 4, have a pair of groove 141, a pair of U type groove 142, four sections deep-slotted chip breakers 143 on the end face of second cylindrical housings 14, groove 141 and U type groove 142 arrange at interval, at interval 90 ° between the two, and connect by deep-slotted chip breaker 143.When first, second

cylindrical housings

13,14 is in confined state following time, U type groove 142 alignment on the blind hole 131 on first cylindrical housings 13 and second cylindrical housings 14, two balls 133 are positioned at U type groove 142 on the ground, effect lower part of spring force, thereby grass mower 10 is positioned the mowing pattern.When rotation work head 1, around axis A rotation, ball 133 compresses springs 132 to whole working head 1, and enters deep-slotted chip breaker 143 from U type groove 142 with respect to second cylindrical housings 14.When working head 1 rotated 90 °, ball 133 fell in the groove 141, and spring 132 discharges, and working head 1 is located in this position.At this moment, blade 12 is basically perpendicular to ground, and grass mower 10 is adjusted to the deburring pattern.

As shown in Figure 5, each roller 3 all has a medial surface 31 and a lateral surface 32 outwardly inwardly.When grass mower 10 was in the deburring pattern, above-mentioned structure arrangement made blade 12 be positioned at outside the lateral surface 32 place plane B of one of them roller 3, i.e. state shown in Fig. 6 a.This makes that two rollers can roll on the ground outside the lawn when the finishing lawn edge, and blade can touch the grass of lawn edge and shear.Like this, roller can roll on the ground reposefully, so the lawn edge that blade cuts goes out is more neat.Another kind of embodiment shown in Fig. 6 b, blade 12 are positioned at the plane B at lateral surface 32 places of roller 3, and this state also can reach the effect that the utility model will be realized.

As second kind of embodiment of the present utility model, bracing or strutting arrangement is embodied in a roller 7, replaces the pair roller 3 in the preferred embodiment.Roller 7 comprises two lateral surfaces 71 outwardly.Shown in Fig. 7 a, preferably, blade 12 is positioned at outside roller 7 one of them lateral surface 71 place plane C.As another kind of embodiment, blade 12 is positioned at roller 7 one of them lateral surface 71 place plane C, i.e. states shown in Fig. 7 b.

As the third embodiment of the present utility model, bracing or strutting arrangement is embodied in a gripper shoe 9.In cutting careless process, this gripper shoe 9 slips on the lawn.When grass mower was in the deburring pattern, blade 12 was positioned at outside the plane, lateral surface place of gripper shoe 9 or is positioned at this plane, and its position can be with reference to figure 7a, 7b.

The grass mower that the utility model discloses is not limited to content mentioned above and structure shown in the drawings.On basis of the present utility model, the shape of other members and position made apparently and change, substitute or revise, all within scope of the present utility model.

Claims

1. grass mower, comprise working head, supply stock and a bracing or strutting arrangement of user's operation, working head is supported on the described bracing or strutting arrangement, working head comprises blade, and can make grass mower between mowing pattern and deburring pattern, switch around an axis rotation, it is characterized in that, be in when grass mower under the state of deburring pattern, blade is positioned at outside the plane, place, the outside of described bracing or strutting arrangement or is positioned at the plane, place, the outside of described bracing or strutting arrangement.

2. grass mower as claimed in claim 1 is characterized in that, described bracing or strutting arrangement is at least one roller.

3. grass mower as claimed in claim 1 is characterized in that, described bracing or strutting arrangement is a gripper shoe.

4. grass mower as claimed in claim 1 is characterized in that, is in when grass mower under the state of deburring pattern, and blade is basically perpendicular to ground.

5. grass mower as claimed in claim 4, it is characterized in that, described working head comprises one first cylindrical housings, one second cylindrical housings is connected in stock, first, second cylindrical housings connects in rotating mode, and described axis is the central axis of first, second cylindrical housings.

6. grass mower as claimed in claim 5 is characterized in that, at least one spring and at least one ball are housed between described first, second cylindrical housings.