CN117084080A - Pruning machine - Google Patents
Pruning machine Download PDFInfo
- Publication number
- CN117084080A CN117084080A CN202210532601.1A CN202210532601A CN117084080A CN 117084080 A CN117084080 A CN 117084080A CN 202210532601 A CN202210532601 A CN 202210532601A CN 117084080 A CN117084080 A CN 117084080A
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- China
- Prior art keywords
- blade
- equal
- blade support
- pruning machine
- opening
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/08—Other tools for pruning, branching or delimbing standing trees
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
本发明公开了一种修枝机，包括：壳体，形成一容纳空间；刀片组件，刀片组件包括第一刀片和第二刀片，第一刀片和第二刀片沿第一直线方向做往复运动；刀片组件还包括刀片支撑件，用以支撑第一刀片和第二刀片，刀片支撑件沿第一直线方向延伸；传动机构，用以驱动刀片组件运动；马达，结合至壳体用以驱动传动机构；刀片支撑件的密度大于或等于1g/cm3且小于或等于2.2g/cm3。本发明揭示的刀片组件的重量更轻，抗弯曲能力更强，且不易变形。
The invention discloses a pruning machine, which includes: a housing forming a receiving space; and a blade assembly. The blade assembly includes a first blade and a second blade. The first blade and the second blade make reciprocating motion along a first linear direction. ; The blade assembly also includes a blade support member to support the first blade and the second blade, the blade support member extending along the first linear direction; a transmission mechanism to drive the blade assembly to move; a motor coupled to the housing for driving Transmission mechanism; the density of the blade support is greater than or equal to 1g/ cm3 and less than or equal to 2.2g/ cm3 . The blade assembly disclosed by the present invention is lighter in weight, has stronger bending resistance, and is not easy to deform.
Description
Technical Field
The application relates to an electric tool, in particular to a pruning machine.
Background
A pruner is a power tool that reciprocates by driving two blades in a blade assembly. Typically, the blade assembly of the pruner is made of a metallic material, such as an aluminum alloy. The weight, stiffness, strength, etc. characteristics of the blade assembly all affect the machine performance and the user's operating experience.
Disclosure of Invention
The application provides a pruning machine, which aims to reduce the weight of a blade assembly and improve the bending resistance of the blade assembly. In order to achieve the above purpose, the present application adopts the following technical scheme: a pruner, comprising: a housing forming an accommodating space; the blade assembly comprises a first blade and a second blade, and the first blade and the second blade do reciprocating motion along a first straight line direction; the blade assembly further includes a blade support for supporting the first blade and the second bladeA blade, the blade support extending in a first linear direction; the transmission mechanism is used for driving the blade assembly to move; a motor coupled to the housing for driving the transmission mechanism; the density of the blade support is greater than or equal to 1g/cm 3 And less than or equal to 2.2g/cm 3 。
In one embodiment, the hardness of the blade support is greater than or equal to 7HW and less than or equal to 15HW.
In one embodiment, the blade support is made of at least one composite material.
In one embodiment, the blade support is formed from a blend of carbon fiber material and glass fiber material. In one embodiment, the mass ratio of carbon fiber material to glass fiber material in the blade support is greater than or equal to 0.5 and less than or equal to 2.
In one embodiment, the mass ratio of carbon fiber material to glass fiber material in the blade support is 1.
In one embodiment, the thickness of the blade support of the pruner is greater than or equal to 5mm and less than or equal to 10mm.
In one embodiment, the ratio of the length to the thickness of the blade support is greater than or equal to 75 and less than or equal to 170.
In one embodiment, the blade assembly includes a spacer disposed between the second blade and the blade support, and the first blade is positioned on the underside of the second blade.
In one embodiment, the blade support includes a through bore defining an opening distance of the through bore in a radial direction of the blade assembly as a first diameter; the first blade comprises a first opening, the second blade comprises a second opening, the opening distances of the first opening and the second opening in the radial direction of the blade assembly are respectively a first length and a second length, and the first length and the second length are both larger than the first diameter; the blade assembly also includes a fastener passing through the first opening, the second opening, and the through hole.
The application has the beneficial effects that: by optimizing the material and the hole site of the blade support, the blade assembly is lighter in weight, stronger in bending resistance and less prone to deformation.
Drawings
FIG. 1 is a perspective view of a pruner;
FIG. 2 is a perspective view of the pruner of FIG. 1 with a portion of the shell removed;
FIG. 3 is a partial cross-sectional view of the blade assembly of FIG. 1 mounted to a pruner;
FIG. 4 is an exploded view of the blade assembly of FIG. 1;
FIG. 5 is a perspective view of the blade support of FIG. 4;
FIG. 6 is a partial cross-sectional view of the blade assembly of FIG. 1;
FIG. 7 is a side view of the pruner;
FIG. 8 is a side view of the pruner;
fig. 9 is a perspective view of the second handle of the pruner rotated 90 degrees;
fig. 10 is a side view of the pruner of fig. 9 placed on a plane.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present application more clear, the technical solutions of the embodiments of the present application will be described in further detail below with reference to the accompanying drawings, and the described embodiments are only some embodiments of the present application, but not all embodiments.
In the description of the present application, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between different structures or components, and are not to be construed as indicating or implying relative importance.
The present application discloses a pruner 10. The pruner 10 comprises a blade assembly 100, a first handle 510 and a second handle 520. Below the second handle 520 is a battery pack 500, and the battery pack 500 is mounted on the battery pack coupling part 530. Blade assembly 100 includes two blades that can be moved relative to one another to perform a shearing function. The pruner 10 further comprises a housing 200, the housing 200 forming an accommodating space 210, and the motor 400 driving the transmission mechanism 300 to move, thereby driving the first blade 110 and the second blade 120 to reciprocate along the first straight line 101. As shown in fig. 2, in the present embodiment, the motor 400 and the transmission mechanism 300 are both disposed in the accommodation space 210 of the housing 200.
As shown in fig. 4, when the blade assembly 100 is disassembled, the first blade 110, the second blade 120, the spacer 130, and the blade support 140 are respectively from bottom to top. In the present embodiment, the blade assembly 100 includes the first and second blades 110 and 120, and eccentric holes at the same ends of the first and second blades 110 and 120 are installed in the transmission mechanism 300 shown in fig. 2, so that the first and second blades 110 and 120 reciprocate. The first and second trimming portions 115 and 125 perform a relative movement while the first and second blades 110 and 120 reciprocate, thereby performing a trimming motion.
In the present embodiment, the spacer 130 is made of a rubber material, and the spacer 130 is located between the second blade 120 and the blade support 140 for relieving friction generated between the second blade 120 and the blade support 140. In one embodiment, the blade support 140 and the spacer 130 may be one piece, i.e., the blade support is made of a material having good wear resistance. In one embodiment, the blade support 140 is provided with a pulley or ball, no spacer 130 is provided between the second blade 120 and the blade support 140, and the second blade 120 rolls on the contact surface of the blade support 140 for movement.
In this embodiment, the first blade 110 and the second blade 120 are located on the same side of the blade support 140, the blade support 140 extends along the first straight line 101, and the blade assembly 100 moves along the direction of the first straight line 101. When the relative movement occurs between the first blade 110 and the second blade 120, the first blade 110 and the second blade 120 are always attached to the blade support 140, and the blade support 140 prevents the first blade 110 and the second blade 120 from being excessively bent and ensures that the first blade 110 and the second blade 120 have a certain bending deformation. Thus, the stiffness, strength, and bending resistance of the blade support 140 affect the cutting ability of the blade assembly 100.
As shown in fig. 2 and 3, the fixing plate 180 is mounted at the lower side of the first blade 110, and the first screw 181 sequentially passes through the positioning portion 310 of the driving structure 300 in the housing 200, the first positioning hole 111 of the first blade 110, the second positioning hole 121 of the second blade 120, the third positioning hole 131 of the spacer 130, and the fourth positioning hole 141 of the blade support 140, and is finally fastened by the first bolt 183.
As shown in fig. 4 and 6, the second screw 181 passes through the positioning portion 310 of the driving structure 300, the fifth positioning hole 112 of the first blade 110, the sixth positioning hole 122 of the second blade 120, the seventh positioning hole 132 of the spacer 130, and the eighth positioning hole 142 of the blade support 140 in the housing 200 in this order, and is finally fastened by the second bolt 184.
In the present embodiment, a plurality of third screws 170 and a plurality of third bolts 160 connect the first blade 110, the second blade 120, the spacer 130, and the portion of the blade support 140 exposed outside the housing 200. The third screw 170 passes through the first cutter hole 113 of the first blade 110, the second cutter hole 123 of the second blade 120, the third opening 133 of the spacer 130, and the fourth hole 143 of the blade support 140, and then is engaged with the third bolt 160.
The first blade 110 includes a first opening 114 and the second blade includes a second opening 124, in this embodiment, both the first opening 114 and the second opening 124 are for weight reduction of the blade assembly 100.
On the top end of the side of the blade assembly 100 furthest from the housing 200 is a guide 150, which guide 150 is fixed to the upper side of the blade support 140 by a screw 170 and a bolt 160.
The blade support 140 includes a plurality of through holes 145, and in the present embodiment, the through holes 145 include a fourth positioning hole 141, an eighth positioning hole 142, and a plurality of fourth holes 143 located outside the eighth positioning hole 142. In this embodiment, these through holes 145 are holes of substantially the same diameter through the blade support 140. The opening distance of the through hole 145 in the direction of the first straight line 101 of the blade assembly 100 is defined as a first diameter that is smaller than the length of the third opening 133 of the spacer 130 in the direction of the first straight line 101. The advantage of this design is that when the blade assembly 100 is bent and deformed during the cutting operation, the bending of the spacer 130 does not create a significant bend in the blade support 140, reducing noise.
In the present embodiment, the density of the blade support 140 is greater than or equal to 1g/cm 3 And less than or equal to 2.2g/cm 3 . In one embodiment, the density of the blade support 140 is greater than or equal to 1.3g/cm 3 And less than or equal to 2.2g/cm 3 . In one embodiment, the density of the blade support 140 is greater than or equal to 1.5g/cm 3 And less than or equal to 2g/cm 3 . In some embodiments, the density of the blade support 140 may be 1.6g/cm 3 、1.65g/cm 3 、1.7g/cm 3 、1.75g/cm 3 Or 1.8g/cm 3 。
In some embodiments, the hardness of the blade support 140 is greater than or equal to 7HW and less than or equal to 15HW. In some embodiments, the blade support 140 may have a hardness of 9HW, 10HW, or 11HW, where the hardness is in units of weisse hardness.
As shown in fig. 5, in the present embodiment, the thickness H of the blade support 140 is greater than or equal to 5mm and less than or equal to 10mm. In some embodiments, the thickness of the blade support 140 may be 6mm, 6.5mm, 7mm, 7.5mm, or 8mm. In this embodiment, the length L of the blade support 140 is greater than or equal to 750mm and less than or equal to 850mm. In some embodiments, the length L of the blade support 140 may be 790mm, 800mm, 810mm, or 820mm. In the present embodiment, the width W of the blade support 140 is greater than or equal to 12mm and less than or equal to 25mm. In some embodiments, the length L of the blade support 140 may be 15mm, 17mm, 19mm, or 21mm. In one embodiment, the ratio of the length to thickness of the blade support 140 is greater than or equal to 75 and less than or equal to 170.
In some embodiments, the blade support 140 is made of at least one composite material. In one embodiment, the blade support 140 is formed from a blend of carbon fiber material and glass fiber material. In one embodiment, the mass ratio of carbon fiber material to glass fiber material in the blade support 140 is greater than or equal to 0.5 and less than or equal to 2. In one embodiment, the mass ratio of carbon fiber material to glass fiber material in the blade support 140 is 1, i.e., the carbon fiber material and glass fiber material of the blade support are formulated at a mass ratio of 1:1.
The existing blade support 140 is typically made of a metallic material, and the composite blade support 140 in this embodiment reduces the weight of the blade assembly 100 and increases the bending resistance characteristics of the blade support 140, thus being less prone to deformation. By adjusting the mass ratios of the different components in the composite material, blade supports 140 of different densities, hardness can be obtained, thereby achieving different bending resistance properties.
As shown in fig. 7, in the present embodiment, the connection line of the first handle 510 and the second handle 520 is higher than the top of the case 200. That is, the line connecting the first handle 510 and the second handle 520 is higher than the top of the motor 400. As shown in fig. 8, the distance between the second handle 520 and the top of the housing 200 above the motor 400 in the up-down direction is a first distance L1, and the first distance L1 is greater than or equal to 40mm.
In this embodiment, the handle of the pruner 10 is rotatable, that is, the second handle 520 is rotatable about the rotation axis 501 relative to a structure located in front of the second handle 520. The trigger 521 is a switch for controlling whether the second handle 520 is rotatable, and the second handle 520 is rotatable when the operator presses the trigger 521 upward to a certain position. When the operator releases the trigger 521, the second handle 520 cannot be rotated. The distance between the bottom of the trigger 521 of the second handle 520 and the housing 200 located below the trigger 521 is a second distance L2, the second distance L2 being greater than or equal to 15mm. The finger can easily stretch into the space below the trigger 521, so that the operation experience is better and the finger is not easy to be blocked.
As shown in fig. 9 and 10, the second handle 520 of the pruner 10 is rotated clockwise by 90 degrees, and the extending direction of the handle part 522 of the second handle 520 is substantially coincident with the rotation axis 501 of the second handle 520. If the pruner 10 is placed on a horizontal plane as shown in fig. 10, the angle between the rotation axis 501 and the horizontal plane is greater than or equal to 10 degrees and less than or equal to 20 degrees.
The foregoing has shown and described the basic principles, principal features and advantages of the application. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the application in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the application.
Claims (10)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532601.1A CN117084080A (en) | 2022-05-13 | 2022-05-13 | Pruning machine |
| US18/182,593 US20230363320A1 (en) | 2022-05-13 | 2023-03-13 | Hedge trimmer |
| EP23161364.7A EP4275481B1 (en) | 2022-05-13 | 2023-03-13 | Hedge trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532601.1A CN117084080A (en) | 2022-05-13 | 2022-05-13 | Pruning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117084080A true CN117084080A (en) | 2023-11-21 |
Family
ID=88781869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210532601.1A Pending CN117084080A (en) | 2022-05-13 | 2022-05-13 | Pruning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117084080A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3117504U (en) * | 2005-10-12 | 2006-01-05 | 新ダイワ工業株式会社 | Hedge trimmer cutting blade structure |
| US20160270301A1 (en) * | 2015-03-19 | 2016-09-22 | Estwing Manufacturing Company, Inc. | Machete |
| CN106660144A (en) * | 2015-02-03 | 2017-05-10 | 奥古斯特吕格贝格有限及两合公司 | Milling tool for angle grinders |
-
2022
- 2022-05-13 CN CN202210532601.1A patent/CN117084080A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3117504U (en) * | 2005-10-12 | 2006-01-05 | 新ダイワ工業株式会社 | Hedge trimmer cutting blade structure |
| CN106660144A (en) * | 2015-02-03 | 2017-05-10 | 奥古斯特吕格贝格有限及两合公司 | Milling tool for angle grinders |
| US20160270301A1 (en) * | 2015-03-19 | 2016-09-22 | Estwing Manufacturing Company, Inc. | Machete |
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