• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A mower comprising a base, a base of the motor at least partially contained in the base, a cutting mechanism arranged on the base of the motor and a mechanism for adjusting the cutting height of the cutting mechanism, said adjustment mechanism comprising a setting section and a driving element connected to the adjusting section, said driving element being coupled to the motor base and being able to drive the motor base relative to the base in order to adjust the depth of cut, characterized in that: said mower further comprises a balancing element for adjusting the force experienced by the driver element in the height adjustment direction, in the cutting height direction, said motor base is supported by common way by the balancing element and the driving element. The balancing element of the mower provided by this utility model can compensate for most of the weight of the elements such as the motor and the cutting blades, so that the user can manipulate the adjustment section by exerting very low force and easily raise the cutting height; when lowering the cutting mechanism, the balancing element can provide some resistance, so that the lowering force is moderate and the difference between the manual feel and the upward adjustment is very low, which makes it easier to use.
    公开号:FR3062774A3
    申请号:FR1851258
    申请日:2018-02-14
    公开日:2018-08-17
    发明作者:Jiang Du；Kang Song
    申请人:Positec Power Tools Suzhou Co Ltd；
    IPC主号:
    专利说明:

    Lawn mower
    Technical area
    This utility model concerns the field of motorized tools, and in particular motorized gardening tools.
    State of the art
    Lawnmowers are mobile tools for pruning lawns and plant cover, they consist of a blade disc structure, an electric motor / motor, a moving mechanism, blades and a part ordered. The motor output shaft is equipped with blades, the blades use the rapid rotation of the motor to mow the grass.
    In order to meet the various cutting height requirements of the users, the mowers must have a cutting height adjustment function, one of the embodiments being to adjust the height of the working head relative to the cutting height. on the ground, the height adjustment devices of the working heads of the mowers that we already know use a threaded structure, for example, the US patent number US8234848B2 makes public a mowing height adjustment device consisting of an externally threaded support cylinder supporting the cutting motor, having an internally threaded sleeve attached to the casing, the user rotates the support cylinder in the sleeve by rotating the blade cover to modify the cutting height, the sleeve and the support cylinder are provided with a reciprocal abutment structure for fixing the height of the working head. Since in the sense of the height adjustment the cutting motor rests entirely on the supporting cylinder support, during the elevation adjustment it is necessary to exert a relatively large force to counter the weight and rotate the blade cover the weight of the motor, blades and blade cover must be overcome. Obviously, the relatively large force to be exerted is impractical for the user.
    In order to overcome the aforementioned problem, it is necessary to develop a mower whose cutting height is easy to adjust.
    Content of the utility model
    The technical problem to be solved by this utility model is to provide a mower whose cutting height can be adjusted easily.
    In order to solve the above problem, this utility model provides the following technical plan:
    A mower comprising a base, a base of the motor at least partially contained in the base, a cutting mechanism arranged on the base of the motor and a mechanism for adjusting the cutting height of the cutting mechanism, said adjustment mechanism comprising a setting section and a driving element coupled to the adjusting section, said driving element being coupled to the motor base and being able to drive the motor base relative to the base in order to adjust the depth of cut, characterized in that: said mower further comprises a balancing element for adjusting the force experienced by the driver element in the height adjustment direction, in the cutting height direction, said motor base is supported by common way by the balancing element and the driving element.
    In addition, said balancing element is an elastic element with telescopic properties, moreover, the direction of stretching and contraction is identical to that of the height adjustment.
    In addition, said motor base is provided with a first guide element guiding the balancing element, said base is provided with a second guide element coupled to the first guide element and guiding the balancing element.
    In addition, said balancing element is a telescopic spring, said telescopic spring is fitted at least partially on the second guide element, said telescopic spring is at least partially contained in the first guide element.
    Further, said first guide member may contain the second guide member, further, in the height adjustment direction, the size of the second guide member is larger than that of the first guide member.
    In addition, the initial state of said elastic member is compressed.
    In addition, the telescopic amplitude of said elastic member and the cutting height value of the motor base correspond in a one-to-one manner.
    In addition, said driver element is threadably connected to the base of the drive motor.
    In addition, said adjustment section is vertically static with respect to the base.
    In addition, said driving element and the balancing element have a parallel arrangement.
    In addition, said cutting mechanism comprises the motor contained in the base of the motor, the cutting blades connected to the motor and driven by the motor, said balancing element is arranged between the base and the base of the motor, said driving element is threaded to the base of the drive motor.
    Said mower is provided with at least two balancing elements, said driving element is not arranged on the connection between the at least two balancing elements.
    Said base has a sliding space containing the base of the motor and allowing the base of the motor to move slidably, the coefficient of friction of the internal walls of said sliding space is not greater than 0.1. The difference between the maximum elastic force and the minimum elastic force of the elastic element of said motor base is not greater than the weight of the cutting mechanism. The balancing element of the mower provided by this utility model can compensate for most of the weight of the elements such as the motor and the cutting blades, so that the user can manipulate the adjustment section by exerting very low force and easily raise the cutting height; when lowering the cutting mechanism, the balancing element can provide some resistance, so that the lowering force is moderate and the difference between the manual feel and the upward adjustment is very low, which makes it easier to use.
    Description of the Drawings
    The technical problem to be solved by this utility model, its technical plan and its beneficial effects can be described in detail with the aid of the embodiments below for carrying out this utility model, and at the same time be clearly obtained by description combined with the Drawings.
    The identical marks and symbols in the Drawings and in the description are intended to represent identical or equivalent elements.
    Drawing 1 shows a view from above of the mower of a preferred embodiment of this utility model;
    Drawing 2 shows a three-dimensional view of the mower shown in Drawing 1, in which the upper envelope 2 is not shown;
    Drawing 3 shows a partial exploded view of the mower shown in Drawing 2;
    Drawing 4 shows a partial cutaway view of line A-A along the mower shown in Drawing 1;
    Drawing 5 shows a partial enlarged view of the mower shown in Drawing 4. In which: 100. Mower 1. Header 11. Sliding space 12. Second guide element 2. Upper shell 3. Motor base 31. First element of guidance 32. Internal threading 4. Cutting mechanism 4L Motor 42. Cutting blades 43. Protective cover 44. Blade disc 45. Blade body 5. Adjustment mechanism 51. Adjustment part 52. Drive element 53. External thread 6 Mechanism of displacement 7. Balancing element
    Modes of realization
    For the detailed descriptions and technical contents of this utility model combined with the descriptions in the accompanying Drawings below, the accompanying Drawings are only provided for reference and explanation and do not constitute a limitation to this utility model.
    A mower 100 provided by the present utility model as shown in Drawings 1 to 5.
    A mower 100 as shown in Drawing 1, intended to mow lawns and plant covers, whose cutting height is adjustable so that it can be used on different topographic environments. Specifically, the mower of the present embodiment is an electric drive mower intelligent, likewise, the improved plan proposed by the present embodiment is suitable for manual push mowers, lawn mowers and mowers other types of displacement or mowers with other types of propulsion such as mowers driven by motor or solar energy.
    In combination with Drawings 1 to 3, said mower 100 of this utility model comprises a base 1, an upper envelope 2 arranged on the base, a displacement mechanism 6, a base of the motor 3 at least partially contained in the 1, a cutting mechanism 4 arranged on the base of the engine 3 and a cutting height adjustment mechanism 5 of the cutting mechanism 4. Said cutting mechanism 4 comprises a motor 41 contained in the base of the engine 3 , the cutting blades 42 connected to and driven by the motor 41 and a protective cover 43 fixed to the outer edge of the cutting blades, said cutting blades 42 comprising the blade disk 44 and the blade bodies 45 fixed on the disk to blades, the blade bodies 45 and the blade disc 44 being driven together by the motor. Said base 1 and said upper envelope 2 surround a closed internal space, the internal space being intended for other elements, such as for example electronic elements. In the present embodiment, the movement mechanism 6 consists of two drive rollers and a driven roller, of course the connection between the drive rollers is provided by shaft, the concrete structure does not require description.
    With reference to Drawings 2 and 3, said base 1 is provided with a sliding space 11 traversing its two upper and lower ends, allowing the base of the motor 3 to move back and forth along the slide formed by its internal walls, simultaneously the cutting blades 42 protrude from the surface of the lower end of the base 1 in order to be able to mow. It should be noted that, in order to avoid that excessive friction between the motor base and the internal walls affect the operations, the coefficient of friction of the internal walls of said sliding space 11 is not greater than 0.1.
    With particular reference to Drawing 3, said adjustment mechanism 5 is arranged on one side of the sliding space 11 and is threadably connected to the base of the motor 3, the adjustment mechanism 5 comprises the adjustment section 51 supported by the upper casing 2 and the driving section 52 coupled to the adjusting section 51, the concrete structure of the adjusting section 51 is a knob to be turned, it can be driven manually or electrically, the lower end of the adjusting section 51 is from beginning to end adjacent to the upper surface of the upper envelope 2, that is why it is static from beginning to end in the direction of the cutting height with respect to the base 1, its rotation causes only the movement of the base of the motor 3 and the cutting mechanism 4 upwards or downwards (that is to say, the adjustment of the cutting height). The zone of said drive section 52 directly on the base face of the motor 3 is provided with an external thread 53, the zone of said base 3 opposite the driving section 52 is provided with an internal thread 32, the internal and external threads engage, so that the adjustment mechanism 5 provides a certain amount of support force to the base of the motor 3. When the adjusting section 51 is turned, the driving element 52 follows the rotation, The driving member 52 threads the displacement of the base of the motor 3 and the cutting mechanism 4 upwards or downwards, thus realizing the adjustment of the cutting height.
    Said mower 100 further comprises the balancing element 7 supporting the base of the motor 3 in the vertical direction, said balancing element 7 and said driving element 52 have a parallel arrangement, and both are parallel to the direction of height adjustment, further the balancing element 7 and the driving element 52 together support the base of the motor 3 in the direction of the cutting height. Therefore when adjusting the base of the motor 3 and the cutting mechanism 4 (that is to say the increase of the cutting height), said balancing element 7 can share the reception of the force of the driving element in the direction of the height adjustment (the weight in the present embodiment), so that when the user manipulates the adjustment section 51 (or drives the motor), it is sufficient to exert a force relatively weak. Of course when adjusting the cutting mechanism 4 from top to bottom (i.e. cutting the cutting height), the balancing element 7 can provide some resistance, that is, that is, an elastic force, providing the user with a manual return feel, which benefits from the fine adjustment of the cutting height downwards, and reduces the manual feeler gap when adjusting upwardly.
    Said balancing element 7 is preferably an elastic element with telescopic properties, furthermore the direction of stretching and contraction is identical to that of the height adjustment, specifically a rotating telescopic spring, a pneumatic spring or a spring while comprising the other instruments with telescopic properties known to those skilled in the art and their combinations, in the present embodiment, a telescopic spring relatively simple structure has been chosen as balancing element 7, in the state initial balancing element 7 is compressed, which ensures that when the cutting mechanism 4 is set up, the balancing element can offer from beginning to end an elastic force to the base of the engine 3 the adjustment force to be exerted by the user is relatively small, so that the adjustment process is simp the and pleasant.
    With reference to Drawings 4 and 5, said balancing element 7 extends in the direction of the cutting height, in addition the two ends are respectively contiguous to the base 1 and to the base of the engine 3. Said base of the motor 3 is provided with a first guide element 31 guiding the balancing element 7 and partially containing it, said base 1 is provided with a second guide element 12 coupled to the first guide element 1 and guiding the element In the present utility model, the first guide element 31 is a guide sleeve, the second guide element 12 is a guide column. When the cutting height is low, the balancing element 7 is even more compressed, said second guide element 12 is contained in the first guide element. It should be noted that the size of the second guide element 12 is smaller than that of the first guide element 31 in the direction of the height adjustment, that is to say that when the end of the second guide element 12 is contiguous to the end of the first guide member 31, the cutting mechanism 4 reaches the smallest cutting height. In other words, the path of the cutting mechanism and the telescopic amplitude of the balancing element 7 (i.e. the amount of displacement of the first guide member 31) are identical. This means that the value of the cutting height of the cutting mechanism and the telescopic amplitude of the balancing element 7 correspond in a one-to-one manner.
    In the present embodiment, at least two balancing elements 7 are arranged, furthermore said drive element 52 is not arranged on the connection between the at least two balancing elements 7, so the two connections between the two two balancing elements 7 and the driving element 52 form a triangle, which makes it possible to stably support and hold in place the cutting mechanism 4. In the present embodiment, the balancing element 7 can to be freely chosen according to the concrete needs.
    Due to the force action point, the produced torque can cause the blocking of the motor base 3 within the sliding space. In order to prevent this phenomenon from occurring, the difference between the maximum elastic force of the balancing element 7 experienced by the base of the motor 3 and the minimum elastic force is not greater than the weight of the cutting mechanism ( including motor, motor base and cutting blades), in order to balance the torque and prevent blockage. The balancing element of the mower provided by this utility model can compensate for most of the weight of the elements such as the motor and the cutting blades, so that the user can manipulate the adjustment section by exerting very low force and easily raise the cutting height; when lowering the cutting mechanism, the balancing element can provide a certain resistance, so that the lowering adjustment force is moderate and the difference between the manual feel and the upward adjustment is very small, which makes it easier to use. Those skilled in the art can understand that the present utility model may have other embodiments, however, as long as the core of the technique is identical or similar to the present utility model, or in case of variations or substitutions. Based on this utility model, the scope of protection of this utility model is applicable.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    claims
    1. A mower, comprising a base (1), a base of the motor (3) at least partially contained in the base, a cutting mechanism (4) arranged on the base of the motor and a control mechanism (5). ) of the cutting mechanism, said adjusting mechanism comprising an adjusting section (51) and a driving element (52) coupled to the adjusting section, said driving element being coupled to the motor base and being able to drive the base of the motor. motor relative to the base to effect the adjustment of the depth of cut, characterized in that: said mower further comprises a balancing element (7) for adjusting the force experienced by the driving member in the in the cutting height direction, said motor base is supported jointly by the balancing element and the driving element.
    [2" id="c-fr-0002]
    2. A mower according to claim 1, characterized in that: said balancing element (7) is an elastic element with telescopic properties, furthermore the direction of stretching and contraction is identical to that of the adjustment of the height.
    [3" id="c-fr-0003]
    3. A mower according to claim 1, characterized in that: said base of the motor is provided with a first guide element (31) guiding the balancing element (7), said base (1) is provided with a second guide member (12) coupled to the first guide member and guiding the balancing element.
    [4" id="c-fr-0004]
    4. A mower according to claim 3, characterized in that: said balancing element (7) is a telescopic spring, said telescopic spring is fitted at least partially on the second guide element (12), said telescopic spring is at less partially contained in the first guide member (31).
    [5" id="c-fr-0005]
    5. A mower according to claim 4, characterized in that: said first guide element (31) can contain the second guide element (12), in addition, the size of the second guide element is larger than that of the first guiding element in the direction of height adjustment.
    [6" id="c-fr-0006]
    6. A mower according to claim 2, characterized in that the initial state of said elastic member is compressed.
    [7" id="c-fr-0007]
    7. A mower according to claim 6r characterized in that: the telescopic amplitude of said elastic member and the cutting height value of the base of the motor correspond in a one-to-one manner.
    [8" id="c-fr-0008]
    8. A mower according to claim 7, characterized in that: said driving element (52) is threadably connected to the base of the drive motor (3).
    [9" id="c-fr-0009]
    9. A mower according to claim 8, characterized in that: said adjustment section (51) is vertically static with respect to the base (1).
    [10" id="c-fr-0010]
    10. A mower according to claim 1, characterized in that: said driving element (52) and the balancing element (7) have a parallel arrangement.
    [11" id="c-fr-0011]
    11. A mower according to claim 1, characterized in that: said cutting mechanism (4) comprises the motor (41) contained in the base of the motor (3), the cutting blades (42) connected to the motor and driven by the motor, said balancing element (7) is arranged between the base (1) and the motor base, said driving element (52) is threadably connected to the base of the drive motor.
    [12" id="c-fr-0012]
    12. A mower according to claim 1, characterized in that: said mower is provided with at least two balancing elements (7), said driving element is not arranged on the connection between the at least two elements of balancing (7).
    [13" id="c-fr-0013]
    13. A mower according to claim 2, characterized in that: said base is provided with a sliding space (11) containing the base of the motor and allowing the base of the motor to move by sliding, the coefficient of friction of the walls internals of said slip space is not greater than 0.1.
    [14" id="c-fr-0014]
    14. A mower according to claim 13, characterized in that: the difference between the maximum elastic force and the minimum elastic force of the elastic element of said motor base is not greater than the weight of the cutting mechanism.
    类似技术:
    公开号 | 公开日 | 专利标题
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    FR2577105A1|1986-08-14|MOTORIZED TURF MOWER
    EP0692185B1|2001-01-10|Haymaking machine, especially a swather with controlled fork-carrying arms
    FR2617674A1|1989-01-13|Machine making it possible to unroll and lay down on the ground a plastic film for agricultural mulching
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    FR2965144A1|2012-03-30|LAWN MOWER
    CA2724925C|2012-08-07|Retractable and automatic positioning wheels for snowmobiles
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    FR2733115A1|1996-10-25|Rotary cutter for vegetation,
    EP0777959A1|1997-06-11|Lawn border cutter
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    FR2486355A1|1982-01-15|LAWN MOWER
    FR2558094A1|1985-07-19|Portable appliance for sharpening knives
    EP2669013B1|2018-11-14|Improvement to plant mills
    FR3043885A1|2017-05-26|PRUNING MACHINE
    FR2963202A1|2012-02-03|Rotary slasher for e.g. mowing plants, has protection system comprising operating rod that connects cradle with hand lever and acts on orientation of cradle when lever is actuated, where hand lever is fixed to proximal part of handle
    同族专利:
    公开号 | 公开日
    FR3062774B3|2019-08-30|
    DE202018100842U1|2018-05-22|
    CN206533741U|2017-10-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US8234848B2|2010-07-28|2012-08-07|Deere & Company|Robotic mower height of cut adjustment assembly|CN110622680A|2018-06-21|2019-12-31|苏州宝时得电动工具有限公司|Grass cutter|
    JP2021027810A|2019-08-09|2021-02-25|本田技研工業株式会社|Work machine|
    CN110463436A|2019-09-23|2019-11-19|常州格力博有限公司|Grass trimmer|
    CN111466194A|2019-11-22|2020-07-31|上海丛远机械有限公司|Cutting mechanism, intelligent lawn mower and lawn mower|
    法律状态:
    2019-02-21| PLFP| Fee payment|Year of fee payment: 2 |
    2020-02-28| PLFP| Fee payment|Year of fee payment: 3 |
    2021-02-26| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201720137300.3U|CN206533741U|2017-02-15|2017-02-15|A kind of hay mover|
    CN201720137300.3|2017-02-15|
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