Handheld electric tool
By setting the center of gravity of the entire lithium-powered fruit tree shears at the grip and optimizing the position of the thumb's mouth, the problems of poor hand feel and unstable operation caused by an unreasonable center of gravity are solved, achieving a more efficient operating experience and reducing fatigue.
Patent Information
- Application Number
- CN202422245296.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The center of gravity of existing lithium-electric fruit tree shears is set unreasonably, resulting in poor feel and unstable operation during use, affecting work efficiency and increasing fatigue.
The center of gravity of the power tool is set at the grip, which is designed to be pressed by the thumb and toe. The distance between the switch section and the thumb and toe pressure position is adjusted in the length direction to optimize the grip and force distribution.
It improves the uniform force distribution during use, reduces fatigue after long-term use, and enhances operational stability and work efficiency.
Smart Images
Figure CN223349151U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric tools, in particular to a handheld electric tool. Background Art
[0002] In recent years, in the field of power tools, taking lithium-electric fruit tree shears as an example, fruit tree pruning is a type of garden power tool. Its main function is to greatly reduce the labor intensity of fruit tree pruning, improve pruning quality, and reduce fruit tree diseases caused by pruning, thereby making it easier for staff to prune fruit trees, etc. It is an indispensable pruning tool among pruning shears.
[0003] Existing lithium-ion fruit tree shears have certain drawbacks. When held by an adult user, the center of gravity of the shears is positioned backward, resulting in a noticeable sense of weight loss and poor handling. The improper positioning of the shears makes them prone to fatigue and unstable operation, significantly impacting work efficiency and causing significant user frustration. Utility Model Content
[0004] The purpose of this application is to overcome the shortcomings of the existing technology, set the center of gravity of the machine at the handle grip, and provide a more convenient handheld power tool. This utility model is achieved through the following technical solutions:
[0005] A handheld power tool comprises a main body, a connecting portion, a gripping portion and a battery pack mounting portion, wherein the connecting portion is connected between the main body and the gripping portion, the gripping portion is located between the connecting portion and the battery pack mounting portion, the gripping portion is for gripping by the palm, and the connecting portion is for pressing by the base of the palm, and the center of gravity of the handheld power tool is located at the gripping portion; the handheld power tool also includes a switch portion mounted on the main body, the switch portion having a switch portion center, and the handheld power tool defines a switch portion cross-section passing through the switch portion center, and in the length direction of the handheld power tool, the distance between the switch portion cross-section and the center of gravity of the handheld power tool is 45-60 mm.
[0006] Furthermore, the handheld power tool includes a thumb's mouth pressing position, and in the length direction of the handheld power tool, the thumb's mouth pressing position is located between the cross section of the switch part and the center of gravity of the handheld power tool.
[0007] Furthermore, in the length direction of the handheld power tool, the distance between the cross section of the switch portion and the position where the thumb's mouth presses is 10-40 mm.
[0008] Furthermore, in the length direction of the handheld power tool, the distance between the center of gravity of the handheld power tool and the thumb's mouth pressing position is 0-50 mm.
[0009] Furthermore, in the length direction of the handheld power tool, the distance between the end portion of the handheld power tool where the battery pack mounting portion is located and the center of gravity of the handheld power tool is 150-175 mm.
[0010] Furthermore, the tiger's mouth pressing position is located at the connecting part.
[0011] Furthermore, the handheld power tool further includes a battery pack, and the battery pack is detachably mounted to the battery pack mounting portion.
[0012] Furthermore, the battery pack mounting portion is located at the end of the handheld power tool.
[0013] Furthermore, the handheld power tool includes a motor, which is configured to provide a power source. The motor includes a motor shaft that rotates around a motor axis, and the battery pack is electrically connected to the motor.
[0014] The handheld power tool has its center of gravity positioned at the grip portion. The handheld power tool includes a thumb grip and a switch portion, with the thumb grip located between the switch portion's cross-section and the handheld power tool's center of gravity. When a user grips the handheld power tool, the tool can apply force more evenly during operation, resulting in more efficient cutting. Even after extended use, the center of gravity does not place an excessive burden on the hand, preventing shaking or difficulty in control due to the center of gravity issue. Hand fatigue is reduced, making operation more convenient and significantly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a three-dimensional diagram of a handheld power tool according to one embodiment of the present application.
[0016] Figure 2 for Figure 1 Another perspective view of the handheld power tool shown. DETAILED DESCRIPTION
[0017] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this application.
[0018] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the same ordinary meaning as those of ordinary skill in the art to which this invention belongs. The terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a limitation of quantity, but rather indicate the presence of at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper" are for convenience only and are not intended to limit a position or spatial orientation. Terms such as "include" or "comprising" mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0019] Combine Figures 1 to 2 A handheld power tool 100 (in this embodiment, the handheld power tool is a lithium-powered fruit tree shears) includes a main body 1, a connecting part 2, a gripping part 3 and a battery pack installation part 4. The connecting part 2 is connected between the main body 1 and the gripping part 3, and the gripping part 3 is located between the connecting part 2 and the battery pack installation part 4. The gripping part 3 is for holding by the palm, and the connecting part 2 is for the base of the palm to be pressed. Specifically, the handheld power tool includes a base pressing position 5, which is for the base of the palm to be pressed. The handheld power tool 100 also includes a switch part 8 installed on the main body 1, the switch part has a switch part center 81, the handheld power tool defines a switch part cross-section 102 passing through the switch part center, the entire center of gravity 101 of the handheld power tool 100 is located on the grip part 3, and in the length direction X of the handheld power tool 100, the thumb pressure position 5 is located between the switch part cross-section 102 and the entire center of gravity 101 of the handheld power tool 100.
[0020] Preferably, in the length direction X of the handheld power tool 100, the distance A1 between the cross-section 102 of the switch part and the center of gravity 101 of the handheld power tool 100 is 45-60 mm, the distance B1 between the cross-section 102 of the switch part and the thumb's mouth pressing position 5 is 10-40 mm, the distance B2 between the center of gravity 101 of the handheld power tool 100 and the thumb's mouth pressing position 5 is 0-50 mm, and the distance A2 between the end of the battery pack mounting part of the handheld power tool 100 and the center of gravity 101 of the handheld power tool 100 is 150-175 mm.
[0021] The thumb's mouth pressing position 5 is located on the connecting portion 2 . The handheld power tool 100 includes a battery pack 7 , which is detachably mounted to the battery pack mounting portion 4 .
[0022] Preferably, the handheld power tool 100 includes a motor (not shown), which is disposed in the housing 6 and configured to provide a power source. The motor includes a motor shaft (not shown) rotating around the motor axis, and the battery pack 7 is electrically connected to the motor.
[0023] The handheld power tool 100 has its center of gravity 101 positioned within the grip 3, with the thumb's-mouth pressure point 5 located between the switch section 102 and the center of gravity 101. This allows the user to apply force more evenly during operation, resulting in more efficient cutting. Even after extended use, the center of gravity 101 does not place excessive strain on the hand, preventing shaking or difficulty controlling the tool due to problems repositioning the center of gravity 101. This reduces hand fatigue, making operation more convenient and significantly improving work efficiency.
[0024] It should be understood that the drawings illustrate exemplary embodiments in detail, and it should be understood that the present application is not limited to the details or methods set forth in the specification or illustrated in the drawings. It should also be understood that the terminology is for descriptive purposes only and should not be considered as limiting.
[0025] In view of this specification, further modifications and alternative embodiments of various aspects of the present invention will be obvious to those skilled in the art. Therefore, this description should be interpreted as being illustrative only. The configurations and arrangements shown in the various exemplary embodiments are illustrative only. Although only some embodiments are described in detail in this disclosure, many modifications (for example, variations in the size, dimensions, structure, shape and proportion of various elements, the value of parameters, the installation arrangement, the use of materials, colors, orientations, etc.) can be made without substantially departing from the novel teachings and advantages of the subject matter described herein. Some elements shown as being integrally formed can be constructed from multiple parts or elements, can be reversed or otherwise changed in the position of the elements, and the nature or number or position of discrete elements can be changed or varied. According to alternative embodiments, the order or sequence of any process, logical algorithm or method steps can be changed or reordered. Other replacements, modifications, changes and omissions can also be made to the design, operating conditions and arrangement of the various exemplary embodiments without departing from the scope of the present invention.
[0026] Although the present application recites particular combinations of features in the appended claims, various embodiments of the present invention relate to any combination of any of the features described herein, whether or not such combinations are currently claimed, and any such combination of features may be claimed in this application or in a future application. Any feature, element, or component of any exemplary embodiment discussed above may be used alone or in combination with any feature, element, or component of any other embodiment discussed above.
[0027] In various exemplary embodiments, relative dimensions, including angles, lengths, and radii, as shown in the accompanying drawings are drawn to scale. Actual measurements of the accompanying drawings would disclose the relative dimensions, angles, and ratios of the various exemplary embodiments. The various exemplary embodiments extend to various ranges encompassing absolute and relative dimensions, angles, and ratios that can be determined from the accompanying drawings. Various exemplary embodiments include any combination of one or more relative dimensions or angles that can be determined from the accompanying drawings. In addition, actual dimensions not expressly stated in this specification can be determined by combining the ratios of the dimensions measured in the accompanying drawings with the explicit dimensions stated in this specification.
Claims
1. A handheld power tool comprising a main body, a connecting portion, a grip portion, and a battery pack mounting portion, wherein the connecting portion is connected between the main body and the grip portion, the grip portion is located between the connecting portion and the battery pack mounting portion, the grip portion is for gripping by the palm, and the connecting portion is for pressing against the base of the palm, characterized in that: The center of gravity of the handheld power tool is located at the gripping portion; The handheld power tool also includes a switch part installed on the main body, the switch part has a switch part center, and the handheld power tool defines a switch part cross-section passing through the switch part center. In the length direction of the handheld power tool, the distance between the switch part cross-section and the center of gravity of the handheld power tool is 45-60 mm.
2. The handheld power tool according to claim 1, wherein: The handheld power tool includes a thumb's-mouth pressing position, which is located between the cross section of the switch portion and the center of gravity of the handheld power tool in the length direction of the handheld power tool.
3. The handheld power tool according to claim 2, wherein: In the length direction of the handheld power tool, the distance between the cross section of the switch portion and the position where the thumb's mouth presses is 10-40 mm.
4. The handheld power tool according to claim 3, wherein: In the length direction of the handheld power tool, the distance between the center of gravity of the handheld power tool and the thumb's mouth pressing position is 0-50 mm.
5. The handheld power tool according to claim 4, wherein: In the length direction of the handheld power tool, the distance between the end portion of the handheld power tool where the battery pack mounting portion is located and the center of gravity of the handheld power tool is 150-175 mm.
6. The handheld power tool according to claim 2, wherein: The tiger's mouth pressing position is located at the connecting portion.
7. The handheld power tool according to claim 6, wherein: The handheld power tool further includes a battery pack, which is detachably mounted to the battery pack mounting portion.
8. The handheld power tool according to claim 7, wherein: The battery pack mounting portion is located at an end portion of the handheld power tool.
9. The handheld power tool according to claim 8, wherein: The handheld power tool includes a motor configured to provide a power source. The motor includes a motor shaft rotating around a motor axis. The battery pack is electrically connected to the motor.