CN115038561A

CN115038561A - Cutting tool

Info

Publication number: CN115038561A
Application number: CN202080095096.8A
Authority: CN
Inventors: 彼得·鲁道夫
Original assignee: Husqvarna AB
Current assignee: Husqvarna AB
Priority date: 2020-01-29
Filing date: 2020-11-26
Publication date: 2022-09-09
Anticipated expiration: 2040-11-26
Also published as: EP4096880B1; EP3858560A1; WO2021151546A1; PL4096880T3; EP4096880A1; CN115038561B; FI4096880T3

Abstract

A cutting tool (100) includes a first blade (102) and a second blade (104). The second blade (104) is pivotally coupled to the first blade (102). The first blade (102) and the second blade (104) together perform a cutting action. The cutting tool (100) includes a drive unit (130) operatively coupled to at least one of the first blade (102) and the second blade (104). The drive unit (130) is configured to selectively provide an auxiliary motor force to assist movement of at least one of the first blade (102) and the second blade (104). Further, the cutting tool (100) comprises a cord (126) operatively coupled to the drive unit (130). The cable (126) provides a force for movement of the first blade (102). The cutting tool (100) is characterized by an adapter (128) operatively coupling the first blade (102) with the cord (126).

Description

Cutting tool

Technical Field

The present disclosure relates to a cutting tool. More particularly, the present disclosure relates to a cutting tool that allows an average user to easily replace a blade.

Background

Cutting tools (such as pruning shears, long-handled pruning shears, rakes, pliers) are used to perform cutting actions with one or more blades. In short, such tools provide added mechanical assistance to the average user and are easy to operate to facilitate performing operations on objects such as tree branches having different sizes. Furthermore, the cutting tool provides the following benefits: such as capturing a bypass cut or simply "bypassing" allows trimming/cutting to be performed with the cutting tool while holding an object (i.e., a branch) by one of the cutting edges.

However, there may be many situations in which an operation with a cutting tool may wear one or more blades. The cutting efficiency of the cutting tool can be restored again by replacing the blade or blades which are subject to wear or to dulling. The replacement of the dull blade of a conventional cutting tool may involve a cumbersome process and require additional cost and weight. Such a replacement action for the blade may appear very complex and time consuming, especially for the average user.

An example of a cutting tool is provided in U.S. patent application No. 2016/0, 219, 793 (hereinafter the' 793 reference). The' 793 reference provides a cutting tool. The cutting tool includes a package. The cutting tool also includes a first blade and a second blade. The cutting tool further includes a dowel pin holder. At least one of the first blade and the second blade is replaceable. The dowel pin clamp is withdrawn to pull at least one of the first blade and the second blade. However, the cutting tool of the' 793 reference does not provide a smooth and safe application for user-friendly replacement of one or more blades.

Thus, there is a need for an improved cutting tool that allows for easy replacement of one or more blades of the cutting tool.

Disclosure of Invention

In view of the above, it is an object of the present invention to solve or at least reduce the disadvantages discussed above. This object is at least partially achieved by a cutting tool. The cutting tool includes a first blade. The cutting tool also includes a second blade. The second blade is pivotally coupled to the first blade. The first blade and the second blade together perform a cutting action on an object placed therebetween. The cutting tool further comprises a drive unit. The drive unit is operatively coupled to at least one of the first blade and the second blade. The drive unit is configured to selectively provide an auxiliary motor force to assist movement of at least one of the first blade and the second blade to perform a cutting action. The cutting tool also includes a cord. The rope is operatively coupled to the drive unit. The cable provides a force for movement of the first blade. The cutting tool is characterized by an adapter operatively coupling the first blade with the cord. Thus, the present disclosure provides for simple, convenient and user-friendly replacement of the blade (i.e., the first blade) of the cutting tool.

According to an embodiment of the present invention, the adapter has an opening to removably mate the first blade with the adapter. The adapter allows the first blade to be replaced through the opening of the adapter as needed.

According to embodiments of the present invention, the connection element, which may comprise a removable nut and/or screw, is arranged at or accessible from the outside of the handle of the cutting tool. Thereby, the first blade may be removed from the cutting tool without disassembling the handle. Additionally or alternatively, a removable connecting element, which may comprise a removable nut and/or screw, may be provided at the pivoted position of the first and second blades. Additionally or alternatively, the removable connection element, in particular the nut and/or the screw, allows for the first blade to be withdrawn upon dismounting the removable connection element, or is configured to allow for the first blade to be withdrawn upon dismounting the removable connection element. Thus, the removable nut and/or screw provides a convenient arrangement to withdraw the first blade without any deformation of other components of the cutting tool.

According to an embodiment of the present invention, the driving unit includes a motor, a gear box, a drum, a Printed Circuit Board Assembly (PCBA), and a battery to selectively provide the auxiliary motor power. The auxiliary motor force of the drive unit provides a mechanical advantage to assist the cutting action of the blade.

According to an embodiment of the invention, the cutting tool comprises a slider or a trigger to activate or deactivate the drive unit. This allows for safe and convenient operation of the cutting tool by providing a slider or trigger.

According to an embodiment of the present invention, a cutting tool includes a top handle and a bottom handle operatively coupled with a second blade and a first blade, respectively. Thereby, the cutting tool can be provided in the form of a garden shears or pruning shears which are manually operated with one hand.

According to an embodiment of the invention, the first blade is releasably coupled to the second blade and/or the first blade is releasably coupled to the handle, in particular to the bottom handle, and/or wherein the first blade is releasably coupled to the adapter. In such an embodiment, the first blade can be released from the cutting tool so that a replacement blade can be coupled to the cutting tool if appropriate.

According to an embodiment of the invention, all components of the drive unit are accommodated in a single handle, in particular in the top handle. Thus, the bottom handle can be provided as a very thin handle. Furthermore, the mounting of the drive unit can be simplified if the drive unit is arranged in the same handle.

According to an embodiment of the invention, the adapter is formed to be coupled to a loop formed by the cord, in particular a loop formed by the cord around the adapter. Thereby, a simple and reliable force transmitting connection is provided between the handle and the blade coupled to the adapter.

According to an embodiment of the invention, the adapter has a sleeve-like form or is a sleeve, in particular wherein the first blade passes through two openings formed in a substantially cylindrical wall of the adapter for removably mating the first blade with the adapter. In this form, the adapter is sufficiently rigid and capable of receiving and transmitting a force from the cable to a blade coupled to the adapter. Further, the blade can be easily coupled to the adapter. According to an embodiment of the invention, the adapter comprises a preferably circumferential groove, wherein the cord, in particular a loop formed by the cord, is arranged in the groove. Thereby, the cord can be attached to a seat formed within the adapter, thereby preventing the cord from sliding off the adapter.

Additionally or alternatively, the adapter comprises one or two cut-outs, in particular provided in the cylindrical wall of the adapter, in which the cord, in particular the loop formed by the cord, may be arranged such that the cord is prevented from slipping off the adapter. These elements also allow for attaching the cord to the adapter, wherein the cord may be prevented from sliding off the adapter.

According to an embodiment of the invention, the adapter is attached to the bottom handle and to the first blade, thereby allowing the first blade to move, in particular pivot, relative to the bottom handle. Thus, movement of the blade relative to the base handle can be detected by the switch, enabling determination of the manual force applied to the handle, and thus whether the assist force supplied by the cutting tool should be added to the manual force. This effect is achieved in particular in the following manner: in a mounted state of the first blade, the adapter is attached to the first blade such that the adapter cannot move relative to the first blade, but wherein the adapter is attached to the bottom handle such that the adapter can move relative to the handle at least when the first blade moves relative to the bottom handle. It should be understood that the adapter may not be directly attached to the bottom handle, but only indirectly attached to the bottom handle by the first blade, or the adapter may only be in contact with the bottom handle and not be secured to the bottom handle.

According to an embodiment of the invention, the adapter comprises a hollow space configured to receive at least a portion of the spring of the cutting tool at least in a state in which the spring is sufficiently compressed. Thereby, the spring can be partly accommodated within the adapter and the bottom handle, allowing for a compact design of the cutting tool.

According to an embodiment of the invention, the adapter is provided with a pipe element extending from the opening to the opening, in particular through which the first blade passes, such that the cable is mechanically decoupled from the shaft when the shaft is moved out of or into the adapter. In such an embodiment, the cord is protected from damage as the blade passes through the adapter and from possible entanglement with the cord.

According to an embodiment of the invention, the channel for the first blade formed by the adapter is configured to ensure that the end of the shaft of the first blade is connected with a connector positioned in the bottom handle, in particular in an end portion of the bottom handle. In the case that a switch or the like can be arranged in the end region of the bottom handle, which switch or the like can detect a relative movement between the bottom handle and the first blade, it is advantageous when the first blade is guided during passage through the bottom handle towards the switch section for connection with the first blade. Thereby, the connection of the first blade to the connector of the switch is simplified.

Other features and aspects of the present invention will be apparent from the following description and the accompanying drawings.

Drawings

The invention will be described in more detail with reference to the accompanying drawings, in which:

fig. 1 illustrates a perspective view of a cutting tool according to an aspect of the present disclosure;

fig. 2 illustrates a perspective view of a drive unit within a cutting tool according to an aspect of the present disclosure;

FIG. 3 illustrates a perspective view of an adapter of a cutting tool according to an aspect of the present disclosure;

FIG. 4 illustrates a perspective view of the cutting tool of FIG. 1 after removal of the removable nut and/or screw in accordance with an aspect of the present disclosure;

fig. 5 illustrates a perspective view of a cutting tool during removal of a first blade according to an aspect of the present disclosure.

FIG. 6 illustrates a perspective view of a drive unit and adapter within a cutting tool according to an aspect of the present disclosure; and

fig. 7 illustrates a perspective view of a drive unit and adapter within a cutting tool when the cutting tool is in an open position according to an aspect of the present disclosure.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention incorporating one or more aspects of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. For example, one or more aspects of the present invention may be used in other embodiments and even other types of structures and/or methods. In the drawings, like numbering represents like elements.

Certain terminology is used herein for convenience only and is not to be taken as a limitation on the present invention. For example, "upper," "lower," "front," "rear," "side," "longitudinal," "lateral," "transverse," "upward," "downward," "forward," "rearward," "lateral," "left," "right," "horizontal," "vertical," "upward," "inner," "outer," "inward," "outward," "top," "bottom," "higher," "above …," "below …," "center," "middle," "intermediate," "between …," "end," "adjacent," "near," "far," "radial," "circumferential," and the like, merely describe the configuration shown in the figures. Indeed, the components may be oriented in any direction and the terminology, therefore, should be understood as encompassing such variations unless specified otherwise.

Fig. 1 shows a cutting tool 100. The cutting tool 100 of the present disclosure is shown as a pruning shears, however, the present disclosure may be readily applied to any cutting tool 100 having two or more cutting edges, such as, but not limited to, pruning shears, scissors, and the like. The cutting tool 100 includes one or more blades, namely a first blade 102 and a second blade 104. The second blade 104 is pivotally coupled to the first blade 102. The first blade 102 and the second blade 104 together perform a cutting action on an object (typically a tree branch or the like) placed therebetween.

The cutting tool 100 also includes removable nuts and/or screws 106. Removable nuts and/or screws 106 are provided at the pivot location of the first blade 102 and the second blade 104. The removable nut and/or screw 106 allows withdrawal of the first blade 102 (best shown by fig. 4 and 5) upon removal of the removable nut and/or screw 106. The removable nut and/or screw 106 provides a convenient arrangement to withdraw the first blade 102 without any deformation of other portions of the cutting tool 100. In some embodiments, the removable nut and/or screw 106 may be any one or more of a coupling nut, a flange nut, a hex nut, a locking nut, a slotted nut, a square nut, a wheel nut, and the like.

Further, the cutting tool 100 includes one or more handles, namely a top handle 108 and a bottom handle 110 operatively coupled with the second blade 104 and the first blade 102, respectively. In one embodiment, the cutting tool 100 further includes a cap 132.

In some embodiments, one or more blades (i.e., first blade 102 and second blade 104) may be one or more of a split blade, a water-drop blade, an enteron blade, an olecranon blade, a pin blade, a straight back blade, a hoof blade, a spear blade, or any other blade used or known in the art. Further, the first blade 102 and the second blade 104 may be made of steel or any other material used or known in the art. The choice of materials for either of the first blade 102 and the second blade 104 generally depends on factors such as life, application, weight, or other parameters associated with the cutting tool 100. However, the present disclosure is not limited in any way to the type of first blade 102 and second blade 104.

During implementation, at least one of the first blade 102 and the second blade 104 may be a stationary blade while the other performs a desired cutting action. Alternatively or additionally, both the first blade 102 and the second blade 104 may be movable during the cutting action.

Fig. 2 shows a cutting tool 100 comprising a drive unit 130. The drive unit 130 includes an electric motor 112 and a gearbox 114. The drive unit 130 also includes a drum 116 that includes a clutch, a retraction spring, and a capstan. Further, the driving unit 130 includes a Printed Circuit Board Assembly (PCBA)118 and a battery 120. In one embodiment, the battery 120 is covered by a cover 132, as will be apparent by reference in conjunction with fig. 1, 2. The cover 132 may be assembled or disassembled to access the battery 120. The cover 132 may be assembled with or disassembled from the top handle 108 using any connection, such as, but not limited to, sliding, snap-fit, magnetic coupling, push-fit, etc. The drive unit 130 may be operatively coupled to at least one of the first blade 102 and the second blade 104. The drive unit 130 is configured to selectively provide an auxiliary motor force to assist movement of at least one of the first blade 102 and the second blade 104 to perform a cutting action.

As shown in fig. 2, the cutting tool 100 can also include a slider or trigger to activate or deactivate the drive unit 130. In the depicted embodiment, the slider or trigger is implemented as a slider or trigger 122 on top of the cutting tool 100, alternatively it can also be implemented as a slider or trigger. Upon engaging, moving, or pressing the slider or trigger 122, the drive unit 130 is switched on and off, and thus, the cutting tool 100 is conveniently and safely maneuvered by the average user. The drive unit 130 may be deactivated in the following cases: it may be desirable to conserve/extend battery life or allow uninterrupted operation of the power-assisted cutting tool 100, such as during low battery conditions. In such a case where the drive unit 130 is deactivated, the motor 112 will remain disengaged/disconnected such that the cutting tool 100 performs a cutting action purely on the basis of the user, without any auxiliary motor power. In one embodiment, the slider or trigger 122 may also maintain the cutting tool 100 in a closed state.

In some embodiments, the slider or trigger 122 can be a button, knob, single pole single throw switch, single pole double throw switch, double pole single throw switch, double pole double throw switch, push button switch, toggle switch, limit switch, floating switch, or the like. Alternatively or additionally, there may be buttons, knobs, or any other switching devices used or known in the related art in place of the switch 122.

In a preferred embodiment, all components of the drive unit 130 are housed in a single handle, i.e., the top handle 108, as best shown in fig. 2 for the cutting tool in the closed state. This helps to reduce the thickness, size, ergonomic contour, or spatial footprint of the bottom handle 110. This even allows the combined profile of the top handle 108 and the bottom handle 110 to be considered as one part, in particular during the closed state of the first handle 108, when at least a part of the second handle 110 at least partially surrounds the back portion 111 of the first handle 108. An advantageous ergonomic contour can be seen in the side view of the cutting tool 100 of fig. 2. Thus, the first handle 108 may also be implemented as a thin bottom handle to allow the cutting tool to be operated even with a small hand.

Fig. 3 shows details of the bottom handle 110 (shown at the bottom of the figure) and the top handle 108 (shown at the top of the figure) of the cutting tool 100 in a closed position. The cutting tool 100 has a spring 124. The cutting tool 100 also includes a cord 126 that transmits force from a drive unit 130 internal to the top handle 108 to the bottom handle 110 and an adapter 128 internal to the bottom handle 110. Specifically, the adapter 128 is disposed inside the cavity formed by the bottom handle 110. The adapter 128 is used to pre-secure the spring 124 and cord 126 with the bottom handle 110 without any direct engagement or contact of the spring 124 and cord 126 with the bottom handle 110, as best shown in fig. 3. As shown in fig. 3, the first blade 102 includes a retention section that is insertable into and disposed inside of a blade holder formed by a cavity provided by the bottom handle 110. Thereby, the holding section is firmly attached to the bottom handle 110 so as not to provide any side play between the first blade 102 and the bottom handle 110. The first blade 102 passes through the adapter 128. The piercing of the first blade 102 by the adapter 128 helps to secure or lock the first blade 102 within the adapter 128 and/or the bottom handle 110 as desired. The retention section of the first blade 102 may have a substantially flat cross-section with a height that is relatively large compared to a width of the cross-section. Thereby, the holding section can be arranged inside the cavity and through the adapter such that the direction of the force transmitted by the cord 126 is an effective and substantially parallel extension of the height of the cross section of the holding section. In other words, the force transmitted by the cable 126 to the first blade 102 via the adapter 128 acts substantially perpendicular to the longitudinal extension of the retention section of the first blade 102.

During implementation, the connection of the adapter 128 with the first blade 102 may be achieved by having the first blade 102 push, slide, and pierce through the adapter 128. The adapter 128 may be made of one or more of materials like plastic, rubber, glass, etc. Additionally or alternatively, the first blade 102 may slide, pierce, enter the adapter 128. As shown in fig. 4, the adapter 128 allows for smooth movement or disassembly of the first blade 102 by a simple pulling action on the first blade 102 after removal of the removable nut and/or screw 106. The removable nut and/or screw 106 may be removed by use of a hand tool or any other means convenient for the average user. As shown in fig. 5, the first blade 102 may be detached from the cutting tool 100 upon removal of the removable nut and/or screw 106. The detached first blade 102 is then allowed to be replaced with another blade, which may be another first blade 102 (not shown), which may have a sharp cutting edge or any other desired feature. A replacement blade (i.e., another first blade 102) for the replacement first blade 102 may have a different design, profile, etc., with the same basic features or structures to allow for the desired engagement with the adapter 128.

Fig. 5 illustrates the removal of the first blade 102 from the cutting tool 100. The first blade 102 may be removed or discarded in the following manner: the first blade 102 is pushed, slid manually, or by providing a button (not shown) that causes the first blade 102 to be removed when pressed. The first blade 102 can be moved into or removed from the cavity by a substantially parallel or slightly angled movement relative to the longitudinal axis of the bottom handle 110. The adapter 128 is disposed inside the cavity of the bottom handle 110, whereby the retention section of the first blade 102 can pass through the adapter 128 with the same movement. The adaptor 128 may have an annular shape with a circumferential groove in which a segment (e.g., an end segment) of the cord 126 can be received. An end section of the cord 126 may be suspended around the adaptor 128 and may be secured to another section of the cord 126 by a knot or clamp, thereby forming a loop or loop for transmitting forces from the cord 126 to the adaptor 128. In some embodiments, an indicator (not shown) may be provided to confirm the configuration of the blade (i.e., the other first blade 102) used in place of the first blade 102. The indicator may indicate whether the first blade 102 is in an operational state. The indication may be given in different ways, such as a beep, a flashing light, a color change, and any such technique known or used in the art.

In fig. 6, the cutting tool 100 as shown in fig. 2 is shown including additional details. The adapter 128 is provided as a sleeve disposed within the bottom handle 110. The bottom handle 110 has an opening with a corresponding form for receiving the sleeve. Furthermore, the sleeve comprises a circumferential groove in which the cord 126 is embedded and guided around the axis of the first blade 102. Furthermore, the sleeve can have one or two cutouts 134, so that the circumference of the sleeve in the height direction decreases in the region of one or more cutouts 134. This allows the loop formed around the sleeve by the cord 126 to tighten so that the loop is positioned in the circumferential groove and the one or more cutouts 134 so that the loop cannot slip off the sleeve. The sleeve may also have an inner diameter sized such that when the cutting tool 100 is in the closed position and when the spring 124 is in a fully compressed state, the spring 124 is able to enter the hollow space of the interior of the sleeve.

The sleeve may also have two openings in its cylindrical wall through which the shaft of the first blade 102 passes. By wrapping the cord 126 around the sleeve 128, the shaft of the first blade 102 can be removed from the sleeve or slid into or pushed into the sleeve without tangling with the cord 126. Additionally or alternatively, a tube element or the like may be provided extending from opening to opening and through which the shaft passes, such that when the shaft is moved out of or into the sleeve, the cord 126 is mechanically decoupled from the shaft.

Fig. 7 shows a connector 136 that may be connected to an end of the shaft of the first blade 102. The connector 136 may form a counterpart of a switch element 138 fixedly attached to the bottom handle 110. In the event that the bottom handle 110 is manually operated by a user and the resistance of the object to be cut is so high that the manual force applied by the user exceeds a certain amount, then the bottom handle 110 may be moved relative to the shaft of the first blade 102 such that the switch 138 is operatively coupled to or cooperates with the connector, causing a signal to be sent via the cable 140 to the controller of the cutting tool to begin supplying motor force to assist the manual cutting process.

Referring to fig. 7, the default state of the switch 138 and connector 136 is shown. This means that if no manual force is applied to the top handle 108 and the bottom handle 110, the switch 138 and the connector 136 are operatively disengaged such that no signal is transmitted via the cable 140 or only a default signal is transmitted via the cable. In this position, the connector 136 is arranged such that when the first blade is inserted into the bottom handle 110, the end of the shaft of the first blade 102 can be connected with the connector 136. For this purpose, the connector 136 and the end of the shaft may comprise corresponding forms for forming a plug-in connection.

In the drawings and specification, there have been disclosed preferred embodiments and examples of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Component list

100 cutting tool

102 first blade

104 second blade

106 removable nuts and/or screws

108 Top handle

110 bottom handle

112 electric machine

114 gearbox

116 roller

118 Printed Circuit Board Assembly (PCBA)

120 cell

122 slider or trigger

124 spring

126 rope

128 adapter

130 drive unit

132 cover

134 cut

136 connector

138 switch

140 cable

Claims

1. A cutting tool (100) comprising:

a first blade (102);

a second blade (104) pivotally coupled to the first blade (102), wherein the first blade (102) and the second blade (104) together perform a cutting action on an object placed between the first blade and the second blade;

a drive unit (130) operatively coupled to at least one of the first blade (102) and the second blade (104), wherein the drive unit (130) is configured to selectively provide an auxiliary motor force to assist movement of the at least one of the first blade (102) and the second blade (104) to perform the cutting action; and

a cable (126) operatively coupled to the drive unit (130), wherein the cable (126) provides a force for movement of the first blade (102);

the method is characterized in that:

the cutting tool also includes an adapter (128) operatively coupling the first blade (102) with the cord (126).

2. The cutting tool (100) according to claim 1, wherein the adapter (128) has an opening to removably mate the first blade (102) with the adapter (128).

3. The cutting tool (100) according to any one of the preceding claims, wherein a removable connecting element, in particular a removable nut and/or screw (106), is provided outside the handle (108, 100) of the cutting tool (100) or is provided accessible from outside the handle (108, 100) of the cutting tool (100),

and/or

Wherein a removable connecting element, in particular a removable nut and/or screw (106), is provided at the pivoted position of the first blade (102) and the second blade (104), wherein the removable connecting element allows for withdrawal of the first blade (102) upon detachment of the removable connecting element.

4. The cutting tool (100) according to any one of the preceding claims, wherein the drive unit (130) comprises a motor (112), a gearbox (114), a drum (116), a Printed Circuit Board Assembly (PCBA) (118) and a battery (120) to selectively provide the auxiliary motor power.

5. The cutting tool (100) according to any one of the preceding claims, wherein the cutting tool (100) comprises a slider or trigger (122) to activate or deactivate the drive unit (130).

6. The cutting tool (100) according to any one of the preceding claims, wherein the cutting tool (100) comprises a top handle (108) and a bottom handle (110) operatively coupled with the second blade (104) and the first blade (102), respectively.

7. The cutting tool (100) according to any one of the preceding claims, wherein the first blade (102) is releasably coupled to the second blade (104), and/or wherein the first blade (102) is releasably coupled to a handle, in particular to a bottom handle (110), and/or wherein the first blade (102) is releasably coupled to the adaptor (128).

8. The cutting tool (100) according to claims 4 and 6, wherein all components of the drive unit (130) are accommodated in a single handle, in particular in a top handle (108).

9. The cutting tool (100) according to any one of the preceding claims, wherein the adapter (128) is formed to be coupled to a loop formed by the cord (126), in particular a loop formed by the cord (126) around the adapter (128).

10. The cutting tool (100) according to any one of the preceding claims, wherein the adaptor (128) has a sleeve-like form or is a sleeve, in particular wherein the first blade (102) passes through two openings formed in a substantially cylindrical wall of the adaptor (128) to removably mate the first blade (102) with the adaptor (128).

11. The cutting tool (100) according to any one of the preceding claims, wherein the adapter (128) comprises a groove, preferably a circumferential groove, in which the cord (126), in particular a ring formed by the cord (126), is arranged,

and/or

Wherein the adapter (128) comprises one or two cut-outs (134), in particular provided in a cylindrical wall of the adapter (128), in which the cord (126), in particular the loop formed by the cord (126), can be arranged such that the cord (126) is prevented from sliding off the adapter (126).

12. The cutting tool (100) according to any one of the preceding claims, wherein the adapter (128) is attached to a bottom handle (110) and to the first blade (102) such that the first blade (102) is allowed to move, in particular pivot, relative to the bottom handle (110).

13. The cutting tool (100) according to any one of the preceding claims, wherein the adapter (128) comprises a hollow space configured to receive at least a portion of a spring (124) of the cutting tool at least in a state in which the spring (124) is sufficiently compressed.

14. The cutting tool (100) according to any one of the preceding claims, wherein the adaptor (128) is provided with a tube element extending from opening to opening, in particular through which the first blade (102) passes, such that the cord (126) mechanically separates from the shaft when the shaft is moved out of or into the adaptor (128).

15. The cutting tool (100) according to any one of the preceding claims, wherein the channel for the first blade (102) formed by the adapter (128) is configured to ensure that the end of the shaft of the first blade (102) is connected with a connector (136) positioned within a bottom handle (110), in particular within an end portion of the bottom handle (110).