TWM537386U - Improved mower blade structure - Google Patents

Description

Lawn blade blade structure improvement

The invention relates to a lawn mower blade structure improvement, in particular to a lawn mower blade made of plastic material, which is preset on the blade board surface, and the cutter rope member directly penetrates the group to protrude into the blade. The outer side of the end face is cut and used to rotate the blade to form a soft knife. The entire mowing ring diameter is greatly increased, and the knife rope piece has a short extension design, so that the rigidity of the knife rope piece can be greatly reduced, and the length of the dressing can be greatly reduced. When used for mowing, it is fast and has the least loss and is safe, economical and practical.

The design of the mowing cutter used in the general simple mower is the most common one, which is a plastic rope belt that is placed on the turntable to make a rotary mowing, or a single thin plate-shaped metal blade. Plastic knife rope parts have a very high cutting loss rate. When a hard object is touched, the long strips are easy to break, and for the long grass plants with thin or thin rod diameter, the cutting operation cannot be done at all. The risk of mowing is due to the natural breakage and wear of the knives. It is also relatively low and safe, but because of the length of the entire knives, it is usually designed to be 8-10 inches long when worn to a certain extent. When it is usually halfway, because the rotating ring diameter is too small, because of the lack of rotational torque and the ability to cut grass, it needs to be replaced, the relative cost is also high, and because the ends are clamped with metal heads, In order to facilitate the wearing of the card, instead of forming a dressback It is difficult to classify and deal with it at the time of collection. This is a great lack of practicality. Therefore, if the grass is long or has a similar roughing and leafy plant, the metal blade will be used as the main mowing, especially the hillside. The large pieces of grass are used more, but the metal blade design is usually fixed by a single long plate-shaped blade. The metal material has a harder cutting effect, but the rigid metal blade is used when it touches a hard object. It is easy to cause damage to the surface of the object to be cut or the strong flying out of the broken object, which is easy to cause damage or deformation of the knife edge, affecting the subsequent cutting operation, and more serious concerns about the serious operational safety of the wounded person; therefore, an activity The pivoting blade assembly was developed and used. For example, the "Cutting Tool Improvement of the Lawn Mower" as shown in Announcement No. 220029, the cutter cutter driven by the mower drive shaft is used to make the cutter which is pivotally connected to the edge of the disk. When the mowing is turned to hit the hard object, the blade can be properly reversed and the pivoting rotation is performed when the cutting resistance is too large, so as to avoid the strong cutting operation and form a safe automatic mowing ring. The transfer operation is mainly to avoid excessive damage of the cutting edge of the tool, prevent or avoid the occurrence of a large amount of the above-mentioned cracked material and the risk of mowing the grass generated when the high-speed spray is flying out, and the assembly of the pivotable blade allows the cutting The safety of the grass has increased significantly. However, due to the sharpness of the metal blade, it has the risk of rigid rotation control. Although it has a pivotal elastic cutting, when it hits the same hard stone or metal piece, it cuts the metal blade. The knife edge is still very easy to cause local deformation or passivation damage due to collision. It is inconvenient to form a passivation during cutting, and it needs to be re-sharpened. It is not only inconvenient or more inconsistent with practical needs. Therefore, how to effectively combine the knife rope with respect to mowing cutters The different use characteristics of the piece and the pivoting blade make the mowing operation more control, labor-saving and mowing use. The structure of the cutter used in the above-mentioned mower is necessary for further design improvement.

The creator has many years of experience in the use of lawn mowers. For the use of the above-mentioned conventional lawn mower cutters, many practical safety defects derived from the use of mowing and assembling are extremely well understood, and Teyi has developed the equipment for many years. The experience, for the actual mowing use and control safety needs, improved development and design of the blade structure of the original mower, the blade is made of plastic material, directly pivoted on the rotating fixed plate preset bifurcation position, the blade The opposite sides of the blade are respectively provided with opposite edge edges, and the plate assembly plate faces the outer edge of the plate, and the protruding protruding hole seat is provided for the purpose of wearing the set of the rope piece so that the group extends beyond the outer end of the blade end to form an appropriate length. The mowing ring diameter is enlarged, and the blade surface is preset to be divided into crease lines which are staggered and recessed for the simple trimming of the knife edge, which effectively improves the lack of many control safety when the conventional lawn mower blade is used.

The main purpose of this creation is to emboss the perforated seat through the plastic blade surface for the purpose of wearing the set of rope parts, so that the ring diameter of the mowing is increased, and the end of the blade is assembled through the knife piece to make it stretch outward. The degree is greatly shortened, the rigidity of the knife rope piece is effectively improved, the blade can receive the outer loop mowing resistance reduced, and the most labor-saving mowing operation is achieved, the wear of the blade can be relatively reduced, and the crease line is arranged in advance with the blade board surface. The simple cutting and trimming after the knife edge wears out, and achieves the purpose of safe and practical mowing control.

Another creative purpose of this creation is to assemble the perforated seat through the preset perforated seat, so that the use of the cutter can receive the economical assembly effect of the shortest length, and the card with the elastic fastener or the direct plastic end The solid design makes it easier to recycle and reuse the lost materials to achieve the most economical and environmentally friendly utility.

(10)‧‧‧Tool holder

(11)‧‧‧ Fixed plate

(12)‧‧‧Central Perforation

(13) ‧‧‧Fixed holes

(14) ‧‧‧ pivot rod

(141)‧‧‧ positioning flange

(15)‧‧‧ Nuts

(16) ‧‧‧shims

(20)‧‧‧blade

(21) ‧‧‧ Knife edge

(22) ‧ ‧ crease line

(23)‧‧‧Axis hole

(24) ‧ ‧ mat ring

(25) ‧ ‧ Sockets

(30)‧‧‧Knife parts

(31)‧‧‧Perforation

(32) ‧‧‧fasteners

(33)‧‧‧T-shaped head

The first picture is an exploded view of the assembly structure of the blade of the present mower.

The second picture: the visual reference drawing for the pivotal assembly of the original mower tool.

The third picture: a schematic diagram of the blade of the creation.

The fourth picture is a schematic view of the side of the blade of the original mower.

Figure 5: This is a schematic reference diagram for the pivotal assembly of the original mower blade.

In order to facilitate your review committee to further understand the structural features of this creation and its practical purposes, please follow the following examples to illustrate in detail the following: This is a lawn mower blade structure improvement, please refer to the first to fifth figures, including It is assembled under the lawn mower (10) to fix the rotating fixed plate (11). The plate body can be a long plate shape, a disk shape or a polygonal disk surface which is divided into a radial arrangement plate surface according to actual grass cutting requirements. Designed for the pivotal assembly of multiple tools, forming a multi-piece cutting, the number of assemblies is based on the principle of balanced transfer control, and the left and right symmetrical lengths of the most commonly used mowing cutter assembly structure of the current mower In the embodiment of the plate-shaped fixing plate (11), the center is provided with a perforation (12) which is locked and assembled with the blade holder (10), and the opposite positions of the extending plate faces on both sides are respectively provided with fixing holes (13) for pivoting, usually It has a properly oriented edge-shaped design, which is designed with a square hole as shown in the figure. It is mainly convenient for the positioning flange (141) of the pivoting rod (14) on the pivoting rod to be fixed at the time of locking, and the pivoting rod when locking (14) There will be no rotation, it is convenient to lock and assemble; and the pivot rod (14) is locked and worn. The extended screw section is provided for the blade (20) to be placed in a locking position, and the improved blade (20) is characterized by: a plastic material with wear resistance Manufactured according to the shape of a tapered long plate, the end of the hinged body is contracted by the taper tip, and the sides of the micro-cone are beveled, and the edge of the knife edge (21) is cut at different angles from the outermost edge. The crease line (22) arranged in the aliquot is slightly concave, and a long pivoting shaft hole (23) having a reaming end at one end is arranged on the axis of the cone, for the collar ring ( 24), directly put on the pivoting rod (14), and then locked by the outer side with the anti-loose nut (15) and the gasket (16); the entire blade (20) is assembled above the board, from the outside The inner edge of the end edge is preset to protrude from the hole seat (27), and the protruding hole seat (27) can also be respectively disposed on the blade surface of the blade (20), and the inner hole edge surface is just The knife rope piece (30) for general mowing is worn therein, and the perforation (31) provided at one end of the rope body is matched with the simple elastic fastener (32) to be protruded and protruded to the both ends to have a T-shaped shape. Positioning, to prevent centrifugal detachment when turning mowing, of course, it can also be directly formed with the same material as a thicker or T-shaped head, mainly for the purpose of achieving the positioning and assembly, and the prefabricated knives (30) are worn. Extending to the outside of the end face of the blade (20) Another kind of mowing element that constitutes a soft type, which not only greatly enlarges the mowing area, but because the weight of the rope is extremely light, it does not affect the overall transposition load, and it can make up if the blade (20) is longer or wider. Because of the thicker and thicker surface design, a large torque is generated when the pivot is rotated, and the strength load of the grip and the pivot end is formed, and the setting of the too long is not allowed, and the extension length of the knife piece (30) is matched by the tie. The assembly of the blade (20) is generally only about half the length of the conventionally used blade member (30), so that not only the group of the blade member (30) can be greatly reduced, but also because the protrusion is more Short, the belt is used to greatly increase the rigidity of the assembly of the whole knife piece (30), which is relatively effective in improving the mowing efficiency when rotating, and because The adapter is placed on the extended outer end of the blade (20), except that the blade (20) is used for cutting the grass, and it is worth mentioning that the wear of the blade (30) can be used to the closest blade. At the end face of (20), the loss of the replacement is minimized, and the entire cutter shaft (30) is removed by the simple removal of the joint T-shaped head or the elastic fastener (32). It can be easily and completely recycled and recycled, especially for environmental protection purposes. The mowing tool assembly with the blade (20) end extension knife (30) is as soft and hard as the same mowing cutter. The multi-synchronous use of the mowing cutter, the knife rope piece (30) extending in the outer ring can pre-cut the outer ring and the slender grass, and the coarse tough grass branches are then cut by the blade (20), so that the turf is trimmed. More complete and less laborious, not only the prolonged service life of the blade (20), but also the use efficiency of the knife rope (30) can be greatly improved, especially when mowing is prevented, because the grass is too large and long to produce mowing The resistance to rotation is too large, and it is difficult to form a grip and control, further ensuring that the mowing is safe and It does not damage the bottom layer of the turf, but the blade is designed to prevent the hard cutting by the soft cutting tool material and the blade (20) and the knife piece (30) with appropriate pivotal deflection. The surface of the object is damaged, and there is no strong splintering of the debris, ensuring the safety protection of the mowing operation.

The improved design of the creative blade (20) is characterized in that the whole blade (20) is made of plastic material, and has the shock reaction force when the grass clipping is greatly buffered, thereby effectively preventing the flying of the small hard objects around the grass surface. When the situation occurs, the safety function is achieved, and the protruding hole seat (27) is preset through the blade (20) plate surface, and the knife rope piece (30) for cutting grass is placed therein, and the end is provided with a simple elastic fastener (32). )do The positioning of the buckle is such that the knife piece (30) protrudes to the outer end of the blade (20), and the mowing operation of the inner and outer torus is performed simultaneously with the edge (21) of the blade (20), and the knife piece is used ( 30) mowing the outer edge of the blade (20), because the soft knife rope (30) has less gravity, there is no increase in the motive of the mowing, the grip can be controlled and stabilized, and the plate can be formed. The blade blade (20) is used for mowing assist, which effectively improves the safety and practicality of the mowing operation and improves the operation efficiency. The simple T-shaped head or elastic fastener (32) of the knife piece (30) provided by the creation is easy to insert. The assembly not only maintains the simple insertion of the general knife cord (30), but also only needs about half of the conventional length in the actual length, that is, within 5 inches, and the shorter solid rope ( 30) Assembling, effectively improving the overall cutting rigidity, not only reduces the loss of cutting, but also the length of the outer protrusion is almost the use of complete cutting, that is, the entire cutting rope piece (30) can utilize 80% of the cutting length. The use of the knife rope piece (30) can be used to the most economical use effect, and the elastic fastener (32) which is replaced and replaced can be inserted again on the new material. It is used for clamping and assembly, and the entire unloading rope can be recycled by complete plastics. It can achieve the effect of environmental protection and reuse, especially with the plasticity of the blade (20) preset crease line (22). The surface design makes the use of plastic mowing cutters truly practical and simple, and is more environmentally friendly and economical. With the improved structure of the mowing blade, it can be said that it is a completely improved design that completely breaks through the current mowing blade assembly structure.

In summary, the blade structure of the artificial mower is improved, and the blade is inserted through the outside of the blade surface of the plastic blade, and extends to the outside through the blade to form a soft outer ring mower, which not only enlarges the mowing area The whole set of tools is easier to recycle and The practical effect of trimming convenience is not only the safety of mowing operation, but also the improvement of the plastic blade structure. It is a new design thinking for the blade structure of the lawn mower. It is more practical and safe, and its structural design innovation and practical characteristics. It has already met the requirements for new patent applications and has applied for it according to law.

(11)‧‧‧ Fixed plate

(12)‧‧‧Central Perforation

(13) ‧‧‧Fixed holes

(14) ‧‧‧ pivot rod

(141)‧‧‧ positioning flange

(15)‧‧‧ Nuts

(16) ‧‧‧shims

(20)‧‧‧blade

(21) ‧‧‧ Knife edge

(22) ‧ ‧ crease line

(23)‧‧‧Axis hole

(24) ‧ ‧ mat ring

(25) ‧ ‧ Sockets

(30)‧‧‧Knife parts

(31)‧‧‧Perforation

(32) ‧‧‧fasteners

(33)‧‧‧T-shaped head

Claims (4)

The utility model relates to a lawn mower blade structure, which comprises a fixing plate for rotating the lawn cutter seat, and a blade for cutting grass and a knife rope member which are arranged at the outer end of the fixing plate; characterized in that: a plastic blade, A perforated seat is arranged on the inner edge of the blade end side of the tapered plate surface for piercing the set of rope parts and extending to the outside of the blade end edge to form a soft mowing cutter rope piece to form a special knife edge and a knife rope. The mowing cutter structure of the piece. The blade structure of the lawn mower according to claim 1 is improved, wherein the blade surface is provided with crease lines which are equally divided and recessed. The blade structure of the lawn mower according to claim 1 is improved, wherein the cutter shaft is provided with a perforation at one end for positioning and assembling by elastic fasteners. The structure of the lawnmower blade according to the first aspect of the patent application is improved, wherein one end of the knife cord member is assembled by the same material as a thicker or T-shaped head.