Cutting tool
By using the wrapping elements and wedge structure of the fastening device in the cutting tool, the problem of time-consuming and risk of fastening the pulling device is solved, and a fast and reliable tightening effect is achieved, improving the operating stability and efficiency of the cutting tool.
Patent Information
- Application Number
- CN202510197383.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-02-26
- Filing Date
- 2025-02-21
- Publication Date
- 2025-08-26
AI Technical Summary
In existing cutting tools, the fastening process of the pulling device is time-consuming and requires skill, resulting in inconvenient operation and potential risk of disengagement.
Using a fastening device, including the first and second wrapping elements, the ends of the pulling device are fastened by a wedge-shaped structure and a ladder-buckle design, preventing it from sliding and disengaging under tension, and can be adjusted and disassembled to accommodate changes in the life cycle of the tool.
The fast, reliable and ergonomic tightening of the pulling device is achieved, ensuring stable operation of the cutting tool, reducing the complexity of the fastening process and potential risk of disengagement, and improving the efficiency of use.
Smart Images

Figure CN120530809A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a cutting tool, particularly a pruner, having an elongated handle for cutting branches, twigs, and brush. Background Art
[0002] A cutting tool, in particular a pruner, may include an elongated handle that makes it easier to cut branches or twigs that may be difficult to reach due to being located at a height. The elongated handle includes a first end and a second end, wherein the first end is opposite the second end. The cutting tool includes a cutting head that is attached to the first end of the elongated handle and is configured to perform a cutting action. In addition, the cutting tool may include a pulling sleeve provided between the first end and the second end on the elongated handle, wherein the pulling sleeve is movable relative to the elongated handle. The cutting head and the pulling sleeve are operably connected to each other via a pulling device, such as a pulling belt or a pulling strap. The movement of the cutting head is accomplished by the pulling device, wherein the pulling device transmits the pulling force caused by the movement of the pulling sleeve to the cutting head so that the cutting action is performed.
[0003] Furthermore, the pulling device is secured to the pulling sleeve by tying a sufficiently large knot using one end of the pulling device. However, tying and untying knots as required may be time-consuming and may require good skill.
[0004] An example of a cutting tool is provided in European Patent EP 2 979 538 B1 (hereinafter referred to as the '538 reference). The '538 reference provides a pruning shear that includes a shearing assembly mounted to the upper end of a shaft of the pruning shears. The shearing assembly is actuated by an actuating device, also provided with a shaft. The actuating device actuates the shearing assembly using a pull cable, one end of which is connected to the shearing assembly and the other end of which is connected to the actuating device. The pull cable is connected to the actuating device using a fastening point. Summary of the Invention
[0005] In view of the above, an object of the present invention is to solve or at least reduce the disadvantages discussed above.This object is achieved at least in part by a cutting tool.
[0006] According to one aspect of the present invention, a cutting tool, in particular a trimmer, includes an elongated handle. The elongated handle includes a first end and a second end. The second end is opposite the first end. A cutting head is mounted to the first end of the elongated handle, and a pulling sleeve is mounted to the elongated handle at a position between the first end and the second end. The pulling sleeve is movable relative to the elongated handle along an extension of the elongated handle. A pulling device is at least partially arranged in the elongated handle so that force can be transmitted from the pulling sleeve to the cutting head via the pulling device. One end of the pulling device is fastened to the pulling sleeve by a fastening device, wherein the fastening device includes a mounting portion at which the fastening device is mounted to the pulling sleeve. The cutting tool is characterized in that the fastening device also includes a first wrapping element and a second wrapping element positioned adjacent to the first wrapping element. The end of the pulling device is guided between and around the first wrapping element and the second wrapping element so that different portions of the end of the pulling device overlap each other, so that under tension, the pulling device is tightened around the first wrapping element and the second wrapping element.
[0007] The present disclosure provides an improved cutting tool, in particular an improved trimmer, which may advantageously include a fastening device for fastening the end of the pulling device to the pulling sleeve. The fastening device can substantially prevent the pulling device from retracting. In other words, when the pulling sleeve is movable relative to the elongated handle to operate the cutting head, the fastening device can prevent the end of the pulling device from being inadvertently disengaged or separated from the pulling sleeve. The fastening device can provide a simple, ergonomic, quick, and adjustable fastening of the pulling device to the pulling sleeve. The fastening device can be simple in design and manufacture. The fastening device can be easily inserted into the pulling sleeve to fasten the pulling device to the pulling sleeve. The fastening can ensure smooth and uninterrupted operation of the trimmer or any other related cutting tool.
[0008] According to the present disclosure, overlapping different parts of this end of the pulling device with each other may mean that different parts of the pulling device can be superimposed on each other so as to completely wrap this end of the pulling device around the fastening device, in particular around the first wrapping element and the second wrapping element, so as to firmly fasten this end of the pulling device to the fastening device accommodated or installed inside the pulling sleeve.
[0009] According to the present disclosure, the pulling device being constricted around the first and second wrapping elements under tension can mean that when tension is applied to the end of the pulling device, the end of the pulling device is tightly pressed against the respective first and second wrapping elements when completely wrapped around the first and second wrapping elements. This arrangement of the end of the pulling device around the first and second wrapping elements can substantially prevent the end of the pulling device from sliding when tension is applied to the end of the pulling device.
[0010] According to an exemplary embodiment of the present invention, the fastening device is fastened, in particular screwed, into the pulling sleeve, more particularly by using at least one screw. The fastening device can be mounted to the pulling sleeve using at least one well-known and readily available fastener, such as a screw. The screw allows for easy mounting and removal of the fastening device from the pulling sleeve, as well as a secure connection of the fastening device in the pulling sleeve.
[0011] According to an exemplary embodiment of the present invention, when the fastening device is loosened and / or removed from the pulling sleeve, the position of the fastening device on the end of the pulling device can be moved and adjusted relative to the pulling device. During the life cycle of the cutting tool and / or pulling device, when the pulling device is repeatedly used to perform cutting actions, the pulling device becomes elongated or loose, and the performance or efficiency of the cutting tool may be affected. To restore the performance of the cutting tool, the fastening device can be removed from the pulling sleeve, and the end of the pulling device (or generally the pulling device) can be adjusted relative to the fastening device. After the fastening device is adjusted and reinstalled on the pulling sleeve, the pulling device can (once again) be able to effectively transfer force from the pulling sleeve to the cutting head to actuate the cutting head's blade to perform the cutting action.
[0012] According to an exemplary embodiment of the present invention, the first wrapping element and / or the second wrapping element are configured to prevent the pulling device from slipping when the pulling device is tightened. Tightening the pulling device may cause the pulling device to press against the first wrapping element and the second wrapping element. This may result in a secure engagement between the pulling device and the fastening device, thereby preventing the pulling device from slipping.
[0013] According to another exemplary embodiment of the present invention, a pulling sleeve includes a first cylindrical portion that contacts the elongated handle and includes an inclined portion and a second cylindrical portion. The inclined portion interconnects the first cylindrical portion and the second cylindrical portion. In addition, the inclined portion and the second cylindrical portion form a receptacle configured to be inserted into a fastening device. The fastening device may preferably have a substantially wedge-shaped structure that can be easily assembled into the receptacle of the pulling sleeve without interfering with the movement of the pulling sleeve relative to the elongated handle on which the pulling sleeve can be movably mounted.
[0014] According to an exemplary embodiment of the present invention, the first wrapping element includes a substantially arrow-shaped elongated cross-section, and / or the first wrapping element includes six contact surfaces configured to contact the pulling device. Due to the particular shape, the substantially arrow-shaped elongated cross-section of the first wrapping element can substantially act to resist sliding of the end of the pulling device. At least a portion of the different contact surfaces of the substantially arrow-shaped elongated cross-section can provide a reaction force against tensile forces acting on the end of the pulling device. Furthermore, the substantially arrow-shaped elongated cross-section can allow for overlapping of different portions of the end of the pulling device to further strengthen the engagement between the pulling device and the arrow-shaped elongated cross-section, thereby preventing any slippage caused by tensile forces acting on the end of the pulling device during operation of the cutting tool. Alternatively, the first wrapping element can have different shapes and sizes sufficient to substantially prevent sliding of the end of the pulling device when the end of the pulling device can be wrapped around the first wrapping element and further subjected to tensile forces, which may be generated by movement of the pulling sleeve away from the cutting head.
[0015] The substantially arrow-shaped elongated cross-section includes a plane defined parallel to the extension of the elongated handle and / or along a plane defined parallel to the longitudinal axis of the cutting tool, in particular includes the longitudinal axis of the cutting tool.
[0016] According to an exemplary embodiment of the present invention, the second wrapping element includes a substantially triangular cross-section, and / or the second wrapping element includes three contact surfaces. When the substantially triangular cross-section of the second wrapping element can work in combination with the substantially arrow-shaped elongated cross-section of the first wrapping element, the substantially triangular cross-section of the second wrapping element can prevent sliding of the end of the traction device. The substantially triangular cross-section of the second wrapping element can also provide contact surfaces that can provide a reaction force against the tension acting on the end of the traction device wrapped thereon. Alternatively, the second wrapping element can have different shapes and sizes that are sufficient to substantially prevent sliding of the end of the traction device when the end of the traction device can be wrapped around the second wrapping element and can be further subjected to tension. In addition, the first wrapping element and the second wrapping element can have similar or different shapes and sizes.
[0017] The substantially triangular cross-section includes a plane parallel to the extension of the elongated handle and / or along a plane defined parallel to the longitudinal axis of the cutting tool.
[0018] According to an exemplary embodiment of the present invention, the end of the pulling device is guided between and around the first wrapping element and the second wrapping element of the fastening device by first loosely guiding the end of the pulling device onto the first wrapping element, then at least partially engaging the end of the pulling device with each of the three contact surfaces of the second wrapping element, and then at least partially engaging the end of the pulling device with each of the six contact surfaces of the first wrapping element. In addition, the portion of the end of the pulling device that is at least partially engaged with the at least three contact surfaces of the first wrapping element overlaps the portion of the end of the pulling device that is loosely guided onto the first wrapping element. The end of the pulling device can be guided between and around the first wrapping element and the second wrapping element in a manner such that the end of the pulling device can be tightly secured or fastened in the pulling sleeve without having to worry about the possibility of the pulling device being retracted toward the cutting head of the cutting tool.
[0019] According to the present invention, the phrase "loosely guiding the end of the pulling device onto the first wrapping element" may mean that any engagement between the end of the pulling device and the first wrapping element can be interrupted without applying any substantial force, or that the end of the pulling device may not engage with the first wrapping element at all when the end of the pulling device is loosely guided onto the first wrapping element.
[0020] According to an exemplary embodiment of the present invention, the pulling sleeve includes a first cylindrical portion that contacts the elongated handle and includes an inclined portion and a second cylindrical portion. The inclined portion interconnects the first cylindrical portion and the second cylindrical portion. The inclined portion and the second cylindrical portion form a receiver configured to be inserted into a fastening device. In addition, different portions of the end of the pulling device that overlap with each other are clamped between the first wrapping element and the inner surface of the inclined portion. Additionally or alternatively, the first wrapping element and the pulling sleeve respectively exert opposite, in particular equal, forces on different portions of the end of the pulling device that overlap with each other. When the end of the pulling sleeve is guided between and around the first wrapping element and the second wrapping element, the fastening device and the pulling sleeve can exert equal and opposite forces on the end of the pulling device, in particular on the overlapping portions of the end of the pulling device. The equal and opposite force application can substantially prevent the end of the pulling device from retracting.
[0021] According to an exemplary embodiment of the present invention, the first wrapping element is positioned closer to the cutting head of the cutting tool than the second wrapping element. As a result, the pulling device can be subsequently wrapped around the first and second wrapping elements, and the pulling device can contact the elongated area of the inner surface of the pulling sleeve. This increases the retention force of the pulling device within the pulling sleeve.
[0022] According to an exemplary embodiment of the present invention, the first wrapping element is arranged behind the second wrapping element when viewed along the extension of the elongated handle from the second end toward the first end. The first wrapping element and the second wrapping element can be arranged such that when the end of the pulling device can be guided between and around the first wrapping element and the second wrapping element, the end of the pulling device can be able to counteract the effects of tensile forces that may act on the end of the pulling device from time to time during the life cycle of the cutting tool. In addition, by arranging the first wrapping element and the second wrapping element accordingly, the pulling device can contact an increased area of different contact surfaces. As a result, the holding force can be increased.
[0023] According to an exemplary embodiment of the present invention, the first and second wrapping elements form a ladder lock. The fastening device can essentially simulate a ladder lock, providing dual protection for the end of the pull device against tensile forces. In other words, the fastening device can allow the end of the pull device to wrap around two adjacent wrapping elements, thereby ensuring engagement between the fastening device and the end of the pull device and reducing the likelihood of the end of the pull device being retracted.
[0024] According to an exemplary embodiment of the present invention, the elongated handle is a telescopic elongated handle, wherein the elongated handle comprises at least two, in particular three, handle portions that are telescopically movable into one another. The telescopic elongated handle can advantageously increase the range of the cutting tool, such that the cutting tool can be used to perform cutting actions at different distances from the user, in particular at positions closer to or further away from the user as required.
[0025] According to an exemplary embodiment of the present invention, the pulling device is a pulling belt. The pulling device can be a pulling belt, a pulling strap, a pulling cable, or a pulling rope. The pulling device can be sufficient to transfer force from the pulling sleeve to the cutting head, so that the cutting head can perform the cutting action.
[0026] According to an exemplary embodiment of the present invention, the cutting tool includes a pulling handle provided at the second end of the elongated handle, and the pulling handle is movable relative to the elongated handle. Thus, depending on the required cutting force, the cutting head can be actuated by the pulling handle or the pulling sleeve. Thus, a versatile cutting tool can be provided.
[0027] Before discussing the present invention with reference to the accompanying drawings, a brief overview of the present invention will be provided. A fastening device may be provided, which may be in the form of a ladder buckle and may be used to secure a portion of a pulling device, particularly one end of the pulling device, within a pulling sleeve. The pulling device may be wrapped multiple times with the fastening device, such that portions of the end of the pulling device overlap. The end of the pulling device may be wrapped multiple times with the fastening device in a manner that allows the end of the pulling device to be tightened under tension and prevents it from slipping off the fastening device. Furthermore, when the fastening device is detachable from the pulling sleeve, the position of the fastening device relative to the pulling device may be modified or changed. After this modification, the fastening device may be reattached to the pulling sleeve, particularly via threaded engagement. During this process, the pulling device may be additionally crimped, thereby doubly securing it to the fastening device. Furthermore, if the pulling device is likely to elongate during the life of the cutting tool, the pulling device can be repositioned by removing the fastening device from the pulling sleeve.
[0028] The fastening device according to the invention may have a quick and uncomplicated assembly.The fastening device according to the invention may be adjusted before and after use.The fastening device according to the invention may be user-friendly.
[0029] Other features and aspects of the present invention will become apparent from the following description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The present invention will be described in more detail with reference to the accompanying drawings, in which:
[0031] Figure 1 shows a perspective view of a cutting tool according to an exemplary embodiment of the present disclosure;
[0032] Figure 2 shows a cross-sectional view of a pulling sleeve according to an exemplary embodiment of the present disclosure;
[0033] Figure 3 shows a perspective view of a fastening device according to an exemplary embodiment of the present disclosure;
[0034] Figure 4 shows a cross-sectional view of a fastening device according to an exemplary embodiment of the present disclosure; and
[0035] Figure 5 A cross-sectional view of a fastening device housed in a receptacle of a pulling sleeve is shown according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION
[0036] The present invention will be described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the invention incorporating one or more aspects of the invention are shown. However, the invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this disclosure thorough and complete and to fully convey the scope of the invention to those skilled in the art. For example, one or more aspects of the invention can be used in other embodiments and even other types of structures and / or methods. In the drawings, like numbers represent like elements.
[0037] Certain terms are used herein for convenience only and are not intended to limit the present invention. For example, terms such as "upper," "lower," "front," "back," "side," "longitudinal," "lateral," "transverse," "upward," "downward," "forward," "backward," "lateral," "left," "right," "horizontal," "vertical," "upward," "inside," "outside," "inwardly," "outwardly," "top," "bottom," "higher," "above," "below," "center," "middle," "between," "end," "adjacent," "near," "near," "distal," "far away," "radial," "circumferential," and the like merely describe the configurations shown in the accompanying drawings. In fact, components may be oriented in any direction, and therefore, terms should be understood to encompass such variations unless otherwise indicated.
[0038] Figure 1 A perspective view of a cutting tool 100 is shown. The cutting tool 100 is a trimmer. The cutting tool 100 defines a longitudinal axis XX'. The cutting tool 100 includes an elongated handle 102 along the longitudinal axis XX'. The elongated handle 102 is a telescopic elongated handle. The elongated handle 102 includes at least two handle parts that can be moved telescopically into each other. The elongated handle 102 includes a first end 106 and a second end 108, wherein the second end 108 is opposite the first end 106. A cutting head 104 is mounted to the first end 106 of the elongated handle 102. The cutting head 104 is a cutting assembly having a fixed blade 110 and a movable blade 112. In order to perform the cutting process, the movable blade 112 can be rotated towards the fixed blade 110, for example by a pivot arrangement provided in the cutting head 104.
[0039] Furthermore, the cutting tool 100 includes a pulling sleeve 114 that is movably mounted to the elongated handle 102 along the longitudinal axis XX' at a position between the first end 106 and the second end 108 of the elongated handle 102. The pulling sleeve 114 is movable relative to the elongated handle 102 along the extension of the elongated handle 102. A stop element 118 is fixed to the elongated handle 102 and limits movement of the pulling sleeve 114 in a direction toward the cutting head 104.
[0040] In addition, the cutting tool 100 includes a pulling handle 116. The pulling handle 116 is provided at the second end 108 of the elongated handle 102. The pulling handle 116 is movable relative to the elongated handle 102. The pulling handle 116 has a substantially T-shaped configuration. The cutting head 104 can be operated by using the pulling sleeve 114 or the pulling handle 116.
[0041] Furthermore, a pulling device 120 is at least partially arranged in the elongated handle 102 so that force can be selectively transmitted from the pulling sleeve 114 or the pulling handle 116 to the cutting head 104 via the pulling device 120. Respective ends of the pulling device 120, in particular the two-part end of the pulling device 120, are fastened to the pulling sleeve 114 and the pulling handle 116, while the other end of the pulling device 120 is fastened to the movable blade 112 of the cutting head 104. Figure 1 The pulling device 120 shown in FIG. 1 is a pulling belt, and one two-part end of the pulling device 120 is fastened to the pulling sleeve 114 and the pulling handle 116 , while the other end of the pulling device 120 is fastened to the movable blade 112 of the cutting head 104 .
[0042] Figure 2 A cross-sectional view of the pulling sleeve 114 is shown. The pulling sleeve 114 includes a body 124 having a variable circumference. The body 124 includes an inner surface 123 and an outer surface 125. The body 124 includes a first cylindrical portion 126, an inclined portion 128, and a second cylindrical portion 127. The inclined portion 128 is disposed at an angle relative to the cylindrical portion 126. The inclined portion 128 interconnects the first cylindrical portion 126 and the second cylindrical portion 127. The inclined portion 128 and the second cylindrical portion 127 form a receptacle 129 configured to receive a fastening device 122. The fastening device 122 is removably mounted to the pulling sleeve 114. One end of the pulling device 120 is fastened to the pulling sleeve 114 by the fastening device 122. The fastening device 122 extends over the inclined portion 128 of the circumference of the body 124 of the pulling sleeve 114.
[0043] Figure 3 A perspective view of the fastening device 122 is shown. The fastening device 122 includes a wedge-shaped body 130. The wedge-shaped body 130 includes a front end 132 and a rear end 134, such that when the fastening device 122 is installed in the pulling sleeve 114, the rear end 134 faces the cutting head 104 and the front end 132 faces away from the cutting head 104. The end of the pulling device 120 that is introduced enters the fastening device 122 from the rear end 134, and at least a portion of the end of the pulling device 120 that is withdrawn exits the fastening device 122 via the front end 132.
[0044] Furthermore, the front end 132 of the fastening device 122 is integrally formed with a mounting portion 136, which is a C-shaped structure. In other words, the fastening device 122 includes a mounting portion 136 at which the fastening device 122 is mounted to the pulling sleeve 114. The mounting portion 136 includes a pair of screw holes 138. The fastening device 122 is secured to the pull sleeve 114 by two screws ( Figure 3 ) is threaded to the pulling sleeve 114.
[0045] Furthermore, formed within the wedge-shaped body 130, the fastening device 122 includes a first wrapping element 140 and a second wrapping element 142 positioned adjacent to the first wrapping element 140. The first wrapping element 140 and the second wrapping element 142 form a ladder lock. When viewed along the extension of the elongated handle 102 from the second end 108 toward the first end 106 of the elongated handle 102, the first wrapping element 140 is positioned behind the second wrapping element 142. In other words, the first wrapping element 140 is positioned closer to the cutting head 104 of the cutting tool 100 than the second wrapping element 142.
[0046] Figure 4 A cross-sectional view of the fastening device 122 is shown. The fastening device 122 includes a first wrapping element 140 and a second wrapping element 142. The first wrapping element 140 includes a substantially arrow-shaped elongated cross-section, and the first wrapping element 140 includes six contact surfaces 140A, 140B, 140C, 140D, 140E and 140F, which are configured to contact the pulling device 120 and are arranged together in a non-linear manner. The cross-section is arranged along a plane parallel to the extension of the elongated handle 102. In particular, the cross-section is arranged along a plane including the longitudinal axis XX'. In other words, the first wrapping element 140 includes a substantially arrow-shaped elongated cross-section arranged along a plane parallel to the longitudinal axis XX' of the cutting tool 100, and the first wrapping element 140 also includes six contact surfaces 140A, 140B, 140C, 140D, 140E and 140F, which are configured to contact the pulling device 120. In addition, the second wrapping element 142 includes a triangular cross-section and three contact surfaces 142A, 142B and 142C arranged together in a nonlinear manner. The triangular cross-section is arranged along a plane parallel to the extension of the slender handle 102. In other words, the second wrapping element 142 includes a triangular cross-section arranged along a plane parallel to the longitudinal axis XX' of the cutting tool 100, and the second wrapping element 142 also includes three contact surfaces 142A, 142B and 142C, which are configured to contact the pulling device 120. The contact surface 140F of the first wrapping element 140 is correspondingly formed facing the contact surface 142B of the second wrapping element 142 and adjacent to the contact surface of the second wrapping element.
[0047] Figure 5 A cross-sectional view of fastening device 122 housed in receiver 129 formed in pulling sleeve 114 is shown. To fasten the end of pulling device 120, the end of pulling device 120 is first loosely guided over contact surfaces 140C, 140D, and 140E of first wrapping element 140, followed by at least partial engagement of the end of pulling device 120 with each of three contact surfaces 142A, 142B, and 142C of second wrapping element 142. The end of pulling device 120 is then guided between contact surface 142B of second wrapping element 140 and contact surface 140F of first wrapping element 140. In addition, the portion of the end of the pulling device 120 that at least partially engages with at least three contact surfaces 140E, 140D and 140C of the first wrapping element 140 overlaps with the portion of the end of the pulling device 120 that is loosely guided onto the contact surfaces 140C, 140D and 140E of the first wrapping element 140.
[0048] Furthermore, the overlapping portions of the end of the pulling device 120 are also sandwiched between contact surfaces 140E, 140D, and 140C of the first wrapping element 140, the inclined portion 128, and the inner surface 123 of the second cylindrical portion 126. The inner surface 123 and contact surfaces 140C, 140D, and 140E exert opposing, and in particular, equal, forces on the overlapping portions of the end of the pulling device 120. As a result, the end of the pulling device 120 is securely fastened to the pulling sleeve 114.
[0049] Furthermore, when the end of the pulling device 120 is guided between and around the first wrapping element 140 and the second wrapping element 142 so that different portions of the end of the pulling device 120 overlap each other, the pulling device 120 is tightened around the first wrapping element 140 and the second wrapping element 142 under the tension generated, in particular, when the pulling sleeve 114 moves along the longitudinal axis XX' in a direction away from the cutting head 104. The tightening of the pulling device 120 prevents the pulling device 120 from sliding.
[0050] In the drawings and specification, exemplary embodiments and examples of the present invention have been disclosed, and although specific terms are employed, they are used in a generic and descriptive sense only and not for the purpose of limiting the scope of the invention set forth in the appended claims.
[0051] Component List
[0052] 100 cutting tools
[0053] 102 slender handle
[0054] 104 cutting head
[0055] 106 First End
[0056] 108 Second End
[0057] 110 fixed blade
[0058] 112 removable blade
[0059] 114 pulling sleeve
[0060] 116 Pulling handle
[0061] 118 stop element
[0062] 120 pulling device
[0063] 122 Fastening equipment
[0064] 123 inner surface
[0065] 124 main body
[0066] 125 outer surface
[0067] 126 first cylindrical portion
[0068] 127 second cylindrical portion
[0069] 128 inclined part
[0070] 129 receiver
[0071] 130 wedge-shaped body
[0072] 132 front end
[0073] 134 Backend
[0074] 136 Installation part
[0075] 138 screw hole
[0076] 140 first packaging element
[0077] 140A contact surface
[0078] 140B contact surface
[0079] 140C contact surface
[0080] 140D contact surface
[0081] 140E contact surface
[0082] 140F contact surface
[0083] 142 second packaging element
[0084] 142A contact surface
[0085] 142B contact surface
[0086] 142C contact surface
[0087] X-X' longitudinal axis
Claims
1. A cutting tool (100), in particular a trimmer, comprising: Slender handle (102), a cutting head (104) mounted to a first end (106) of the elongated handle (102), a pulling sleeve (114) mounted to the elongated handle (102) at a position between the first end (106) and a second end (108) opposite the first end (106), wherein the pulling sleeve (114) is movable relative to the elongated handle (102) along an extension of the elongated handle (102), a pulling device (120) which is at least partially arranged in the elongated handle (102) such that a force can be transmitted from the pulling sleeve (114) to the cutting head (104) via the pulling device (120), One end of the pulling device (120) is fastened to the pulling sleeve (114) via a fastening device (122). The fastening device (122) comprises: a mounting portion (136) at which the fastening device (122) is mounted to the pulling sleeve (114), Its characteristics are: The fastening device (122) further comprises: a first wrapping element (140) and a second wrapping element (142) positioned adjacent to said first wrapping element (140), The end of the pulling device (120) is guided between and around the first wrapping element (140) and the second wrapping element (142) so that different parts of the end of the pulling device (120) overlap each other, so that under tension, the pulling device (120) is tightened around the first wrapping element (140) and the second wrapping element (142).
2. The cutting tool (100) according to claim 1, The fastening device (122) is fastened, in particular screwed, into the pulling sleeve (114), more particularly by using at least one screw.
3. The cutting tool (100) according to any one of the preceding claims, Wherein, when the fastening device (122) is loosened and / or removed from the pulling sleeve (114), the position of the fastening device (122) on the end of the pulling device (120) can be moved and adjusted relative to the pulling device (120).
4. The cutting tool (100) according to any one of the preceding claims, The first wrapping element (140) and / or the second wrapping element (142) are configured to prevent the pulling device (120) from sliding when the pulling device (120) is tightened.
5. The cutting tool (100) according to any one of the preceding claims, wherein the pulling sleeve (114) includes a first cylindrical portion (126) in contact with the elongated handle (102) and includes an inclined portion (128) and a second cylindrical portion (127), wherein the inclined portion (128) interconnects the first cylindrical portion (126) and the second cylindrical portion (127), and wherein the inclined portion (128) and the second cylindrical portion (127) form a receiver (129) configured to be inserted into the fastening device (122).
6. Cutting tool (100) according to any one of the preceding claims, wherein the first wrapping element (140) comprises a substantially arrow-shaped elongated cross-section, and / or The first wrapping element (140) includes six contact surfaces (140A, 140B, 140C, 140D, 140E, 140F), and the six contact surfaces are configured to contact the pulling device (120).
7. Cutting tool (100) according to any one of the preceding claims, wherein the second wrapping element (142) comprises a substantially triangular cross-section, and / or The second wrapping element (142) includes three contact surfaces (142A, 142B, 142C).
8. Cutting tool (100) according to any one of the preceding claims, wherein the end of the pulling device (120) is guided between and around the first wrapping element (140) and the second wrapping element (142) of the fastening device (122) by first loosely guiding the end of the pulling device (120) onto the first wrapping element (140), then causing the end of the pulling device to at least partially engage with each of the three contact surfaces (142A, 142B, 142C) of the second wrapping element (142), and then causing the end of the pulling device to at least partially engage with each of the six contact surfaces (140A, 140B, 140C, 140D, 140E, 140F) of the first wrapping element (140), The portion of the end of the pulling device (120) that is at least partially engaged with at least three contact surfaces (140E, 140D, 140C) of the first wrapping element (140) overlaps with the portion of the end of the pulling device (120) that is loosely guided onto the first wrapping element (140).
9. The cutting tool (100) according to any one of the preceding claims, in, The pulling sleeve (114) includes a first cylindrical portion (126) in contact with the elongated handle (102) and includes an inclined portion (128) and a second cylindrical portion (127), wherein the inclined portion (128) interconnects the first cylindrical portion (126) and the second cylindrical portion (127), and wherein the inclined portion (128) and the second cylindrical portion (127) form a receiver (129) configured to be inserted into the fastening device (122), and wherein the different portions of the end of the pulling device (120) that overlap each other are sandwiched between the first wrapping element (140) and the inner surface (123) of the inclined portion (128), and / or The first wrapping element (140) and the pulling sleeve (114) respectively exert opposite, in particular equal, forces on the different parts of the ends of the pulling device (120) that are stacked on each other.
10. The cutting tool (100) according to any one of the preceding claims, The first wrapping element (140) is located closer to the cutting head (104) of the cutting tool (100) than the second wrapping element (142).
11. The cutting tool (100) according to any one of the preceding claims, Wherein the first wrapping element (140) is disposed behind the second wrapping element (142) when viewed along the extension of the elongated handle (102) from the second end (108) toward the first end (106).
12. The cutting tool (100) according to any one of the preceding claims, The first wrapping element (140) and the second wrapping element (142) form a ladder buckle.
13. The cutting tool (100) according to any one of the preceding claims, wherein the elongated handle (102) is a telescopic elongated handle, and The elongated handle (102) comprises at least two, in particular three, handle parts, which are telescopically movable into each other.
14. The cutting tool (100) according to any one of the preceding claims, The pulling device (120) is a pulling belt.
15. Cutting tool (100) according to any one of the preceding claims, wherein the cutting tool (100) includes a pulling handle (116) provided at the second end (108) of the elongated handle (102), and The pulling handle (116) is movable relative to the elongated handle (102).
Citation Information
Patent Citations
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