TWM466469U - Blade positioning structure of handheld grass mower - Google Patents

Description

Blade positioning structure of hand-held mower

This creation relates to a hand-held lawn mower that refers to a blade positioning structure of a lawn mower.

According to the modern people, due to the improvement of living standards, the maintenance and requirements for the environment are getting higher and higher. Especially when the environmental awareness raises the emphasis on greening, more emphasis is placed on grassland maintenance, field consolidation and road surface cleaning. Therefore, lawn mowers It has become an auxiliary finishing tool, and its use has become more and more popular. At present, the common lawn mower has a cart type and a hand-held type, wherein the hand-held type is convenient for use and storage, and has a rod portion and a rod portion. The two ends respectively form a grip portion and a mowing portion, wherein the mowing portion is also directly provided with a blade by a driving mandrel of the driving motor, and the rotation generated by the driving motor is used to drive the spindle by the driving spindle. Driven by high-speed rotation to achieve the state of cutting, it is not difficult to find the shortcomings of the above-mentioned conventional structure. The main reason is as follows: the blade of the conventional mower is directly assembled on the drive spindle of the drive motor. And the transmission mandrel is not shielded by any cover body, and when the blade is driven by the drive motor to generate a high-speed rotation cutting state, the weeds are also easily guided by the blade and are entangled in the blade. Mandrel, the mandrel drive caused by weeds reduced transmission power involved coating, thereby reducing the efficiency of the mower cutting work, not by practicality.

In view of this, the creator has been engaged in the manufacturing development and design of related products for many years. After the above-mentioned target inspection, detailed design and prudent evaluation, the original creation will be practical.

According to the conventional lawn mower blade, the blade is directly assembled on the driving mandrel of the driving motor, and the driving mandrel is not shielded by any cover body, so that when the blade is driven by the driving motor to generate a high-speed rotating cutting state, Weeds are also easily guided by the blade and wound into the drive mandrel, causing the drive mandrel to be wrapped by weeds to reduce the transmission power, thereby reducing the work efficiency when the mower is cutting, and it is not practical.

The invention provides a blade positioning structure of a hand-held mower, comprising: a lawn mower body, a blade and a locking upper cover, wherein the lawn mower body has a mowing end, and a driving part is correspondingly arranged therein And the driving member has a driving mandrel and extends to pivotally connect a passive cover body, so that the passive cover body can be rotated and activated with the driving member, the passive cover body end face has a combined long groove and is combined in the long groove The utility model is provided with two screwing holes, a blade has a combined portion, and the combined portion is arranged in the combined long groove of the passive cover body, and the corresponding screwing hole in the combined portion is provided with two through holes, a lock The cover body is corresponding to the passive cover body and the blade is provided with a perforation, and the combined long groove corresponding to the passive cover body on both sides of the perforation has a convex hole groove, and the upper cover is matched with the perforation to provide a locking member. With the above structure, It can constitute a blade positioning structure of a hand-held lawn mower.

(1) The mower of the present invention provides a passive cover body set on the drive mandrel of the drive member, and then the passive cover body is combined with a blade to make the drive mandrel 121 covered and hidden. When the user uses the mower body to carry out the mowing practice, the cockroach can prevent the blade from involving the weeds into the transmission mandrel due to the high-speed rotation, and increases the work efficiency of the mowing use, and has practicality.

(2) The combination between the blade and the passive cover forms a combined state of the plane, In addition, a locking upper cover is provided to abut the limit position, so that the blade can be smoothly assembled on the passive cover body to increase the stability of the blade driven by the driving member and rotate at a high speed, thereby having better mowing efficiency.

10‧‧‧ lawn mower body

11‧‧‧ mowing end

12‧‧‧ Drives

121‧‧‧ Transmission mandrel

13‧‧‧ Passive cover

131‧‧‧Combined long slot

132‧‧‧Spiral hole

133‧‧‧ fitting ribs

134‧‧‧ positioning bumps

20‧‧‧blade

21‧‧‧Knife

22‧‧‧ Combination Department

221‧‧‧With holes

222‧‧‧ fitting recess

223‧‧‧Locating long holes

30‧‧‧Locked cover

31‧‧‧Perforation

32‧‧‧ protruding slot

33‧‧‧Compression bumps

34‧‧‧Locks

Figure 1: This is a perspective view of the creation.

Figure 2: This is an exploded view of the creation.

Figure 3: A partial enlarged cross-sectional view of the creation.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [simplified description of the drawings] as follows: First, please refer to Figures 1, 2 and 3 A blade positioning structure of a hand-held lawn mower includes: a lawn mower body 10, a blade 20, and a locking upper cover 30. The lawnmower body 10 has a mowing end 11 and corresponds internally. A driving member 12 is disposed, and the driving member 12 has a driving mandrel 121 and extends and pivots a passive cover 13 so that the passive cover 13 can be rotated and activated with the driving member 12, and the passive cover 13 has an end face. A plurality of long slots 131 are formed, and two screw holes 132 are defined in the combined long slots 131, and the inner walls of the combined long slots 131 are correspondingly provided with the fitting ribs 133, and the two screw holes 132 are further protruded. There are two positioning protrusions 134, one of which has a blade portion 21 at both ends, and a combination portion 22 at the middle portion, and is assembled by the combination portion 22 in the combined slot 131 of the passive cover 13. In addition, the corresponding screwing hole 132 of the combining portion 22 is provided with two through holes 221, and the combining portion 22 The fitting rib 133 of the corresponding combination slot 131 is recessed with two fitting recesses 222, and a positioning slot 223 is defined between the two through holes 221, and the aperture of the positioning slot 223 corresponds to the passive cover 13 The distance between the positioning protrusions 134 is formed, and the locking upper cover 30 is corresponding to the passive cover 13 and the blade 20. The combination of the perforations 31 and the combination of the passive cover 13 on both sides of the perforation 31 has a protruding slot 32, and the bottom of the locking upper cover 30 is provided with a pressing protrusion 33 on both sides of the fitting recess 222 of the blade 20. The lock cover 34 is provided with a locking cover 34.

For the structure of the structure, please refer to the second and third figures. The passive cover 13 is matched with the mowing end 11 of the mower body 10, and is connected to the transmission spindle 121 of the driving member 12. The driving mandrel 121 can be closed by the cover of the passive cover 13 , and the passive cover 13 can be driven and rotated by the driving member 12 , and the blade 20 is assembled with the combination part 22 in the passive cover 13 . The fitting recesses 222 of the combination portion 22 are engaged by the fitting ribs 133, and the positioning elongated holes 223 are just nested to be limited to the two positioning projections 134 of the combined long slots 131. The blade portions 21 formed on both sides of the blade 20 are respectively protruded from the end portions of the combined long grooves 131, and a locking upper cover 30 is sequentially disposed above the passive cover body 13, and the cover holes 32 are correspondingly covered by the two sides. Covering the blade 20, the bottom side of the pressing protrusion 33 abuts against the two sides of the fitting recess 222 of the blade 20, and the through hole 31 and the insertion hole 221 of the blade 20 and the screw hole 132 of the passive cover 13 are provided. Forming a aligning state, whereby the locking member 34 can be screwed into the screwing hole 132 through the through hole 221 through the through hole 31, and the above can complete one The handheld mower blade positioning structure.

The state in which the structure is actually used, as shown in Figs. 1 and 3, the mowing machine body 10 is used for mowing, and the passive cover 13 assembled by the mowing end 11 is rotated by the driving member 12, The blade 20 is rotated at a high speed and is cut by the blade portion 21 protruding from both sides, and the driving member 12 and the transmission mandrel 121 are completely covered by the mowing end 11 and the passive cover 13 when the user performs In the mowing work, the exposed rotating part only has the blade 20 and the passive cover 13, and the blade 20 and the passive cover 13 form a combined state of the plane, and the transmission mandrel of the driving member 12 is driven by the passive cover 13. 121 cover hidden, 俾 can effectively prevent the blade 20 from rotating at high speed Turning the weeds into doubts at the turn, adding work efficiency to mowing.

According to the structure of the above specific embodiment, the following benefits can be obtained: (1) The mower body 10 of the present invention provides a passive cover 13 which is connected to the transmission spindle 121 of the driving member 12, and then passively The cover 13 is positioned in combination with a blade 20 to cover the drive mandrel 121. When the user uses the mower body 10 to perform mowing practice, the file can prevent the blade 20 from indirectly passing the weeds due to high speed rotation. The doubt that the drive mandrel 121 is added, the work efficiency of mowing is increased, and the utility is practical; (2) the combination between the blade 20 and the passive cover 13 forms a flat state, and a lock upper cover 30 is additionally provided. Abutting the limit, the blade 20 can be smoothly assembled on the passive cover 13 to increase the stability of the blade 20 being driven by the driving member 12 and rotating at a high speed, thereby having better mowing efficiency.

In summary, this creation has indeed achieved a breakthrough structural design, with improved creative content, while at the same time achieving industrial use and progress, and this creation has not been seen in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for the creation of a patent shall be filed according to law, and the examination of the member of the Bureau shall be granted a legal patent right.

Only the above-mentioned ones are only preferred embodiments of the present invention, and the scope of the implementation of the creation cannot be limited by them; that is, the equal changes and modifications made by the applicants in accordance with the scope of the patent application for this creation should still belong to the creation. Within the scope of the patent.

10‧‧‧ lawn mower body

11‧‧‧ mowing end

13‧‧‧ Passive cover

131‧‧‧Combined long slot

132‧‧‧Spiral hole

133‧‧‧ fitting ribs

134‧‧‧ positioning bumps

20‧‧‧blade

21‧‧‧Knife

22‧‧‧ Combination Department

221‧‧‧With holes

222‧‧‧ fitting recess

223‧‧‧Locating long holes

30‧‧‧Locked cover

31‧‧‧Perforation

32‧‧‧ protruding slot

33‧‧‧Compression bumps

34‧‧‧Locks

Claims (5)

A blade positioning structure of a hand-held lawn mower, comprising: a lawn mower body, the lawn mower body having a mowing end, and a driving member correspondingly disposed therein, and the driving member has a driving mandrel and Extending and pivoting a passive cover body, the passive cover body is rotatable with the activation of the driving member, the end surface of the passive cover body has a combined long groove, and two screw holes are arranged in the combined long groove; The blade has a combination part, and is assembled in the combined long groove of the passive cover by the combination part, and the corresponding insertion hole is provided in the combination part; the upper cover is closed, and the upper cover is closed Corresponding to the passive cover body and the blade are provided with perforations, and the combined long groove corresponding to the passive cover body on both sides of the perforation has a protruding hole groove, and the locking upper cover is matched with the perforation to provide a locking member. The blade positioning structure of the hand-held lawn mower according to the first aspect of the invention, wherein the inner wall of the combined long groove is correspondingly provided with a fitting rib, and the two screw holes are convexly provided with two positioning positions. Bump. The blade positioning structure of the hand-held lawn mower according to the second aspect of the invention, wherein the combination portion of the blade is provided with two fitting recesses corresponding to the fitting ribs of the combined long groove, and the holes are formed in the two holes. A positioning long hole is disposed between the two, and the aperture of the positioning long hole is formed corresponding to the distance between the two positioning protrusions of the passive cover body. The blade positioning structure of the hand-held lawn mower according to claim 3, wherein the bottom of the locking upper cover is provided with a pressing protrusion on both sides of the fitting recess of the blade. The blade positioning structure of the hand-held lawn mower according to claim 1, 2, 3 or 4, wherein the blade has a blade portion at both ends and a combination portion is formed at the middle portion.