Electric lawnmower with pivoting lever and start switch
By introducing a combination design of a pivot rod and a start switch into the electric lawnmower, the operator's hands are not occupied during cutting, which solves the problem of hand injury risk of traditional lawnmowers and improves the safety of lawnmowers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- OSO TECH LLC
- Filing Date
- 2023-03-01
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional lawnmowers pose a risk of hand injury to operators due to the cutting blades, and their existing safety features are insufficient, leading to a potential serious injury risk.
Design an electric lawnmower equipped with a pivot and a start switch. The operator needs to use one hand to operate the pivot and the other hand to activate the start switch to start the cutting blades, ensuring that both hands are not occupied while cutting.
This design significantly reduces the likelihood of the operator being injured by the cutting blades, making the lawnmower safer.
Smart Images
Figure CN117460405B_ABST
Abstract
Description
Technical Field
[0001] This disclosure generally relates to electric lawnmowers, and more particularly to electric lawnmowers having a pivot and a start switch. Background Technology
[0002] A lawnmower (also known as a lawnmower, mower, or grass cutter) is a device that uses one or more cutting blades (or spools) to cut grass to a uniform height. While early lawnmowers relied on operators to push them forward, many modern lawnmowers are now self-propelled by the same pneumatic internal combustion engine that powers the cutting blades.
[0003] Instead of pneumatic internal combustion engines, an increasing number of lawnmowers are now equipped with one or more electric motors that power the cutting blades and propel the mower forward. Electric lawnmowers offer several advantages over pneumatic ones. For example, they are quieter and require less maintenance. Furthermore, they are lighter and therefore more maneuverable. Additionally, they are generally cheaper and more environmentally friendly. Summary of the Invention
[0004] The disclosed aspects / embodiments provide an electric lawnmower with a pivot lever and a start switch. The pivot lever and start switch are configured such that the operator needs to use one hand to operate the pivot lever while simultaneously activating (e.g., pressing) the start switch with the other hand to engage the cutting blades of the electric lawnmower. Because both hands are occupied when the cutting blades are engaged, the possibility of the operator being injured by the cutting blades is reduced or eliminated. This makes the lawnmower much safer compared to models without this safety feature.
[0005] These and other features will become clearer from the following detailed description taken in conjunction with the accompanying drawings and claims. Attached Figure Description
[0006] To gain a more complete understanding of this disclosure, reference is now made to the following brief description in conjunction with the accompanying drawings and detailed description, wherein like reference numerals denote like parts.
[0007] Figure 1 This is an illustration of an electric lawnmower according to an embodiment of the present disclosure.
[0008] Figure 2 This is an illustration of a pivot rod in the fully disconnected position according to an embodiment of the present disclosure.
[0009] Figure 3 This is an illustration of a pivot rod disposed at a first pivot angle according to an embodiment of the present disclosure.
[0010] Figure 4 This is an illustration of a pivot rod disposed at a second pivot angle according to an embodiment of the present disclosure.
[0011] Figure 5 This is an illustration of a pivot rod disposed at a third pivot angle according to an embodiment of the present disclosure.
[0012] Figure 6 This is a diagram illustrating the operation of an electric lawnmower using a pivot rod and a start switch according to an embodiment of the present disclosure.
[0013] Figure 7 This is a method implemented by an electric lawnmower according to an embodiment of the present disclosure.
[0014] Figure 8 This is a schematic diagram of a computing device according to an embodiment of the present disclosure. Detailed Implementation
[0015] First, it should be understood that although illustrative embodiments of one or more examples are provided below, the disclosed systems and / or methods can be implemented using any number of techniques, whether currently known or existing. This disclosure should in no way be limited to the illustrative embodiments, drawings, and techniques shown below, including the exemplary designs and embodiments shown and described herein, but modifications can be made within the full scope of the appended claims and their equivalents.
[0016] Traditional lawnmowers may include safety features such as blade guards. These blade guards are designed to protect the operator from the cutting blades. Despite these safety features, injuries to the operator's hands can still occur because the hands are most vulnerable to the blade guards. These injuries can be severe, ranging from deep lacerations to amputations. Therefore, improvements to lawnmower safety systems remain necessary.
[0017] This paper discloses an electric lawnmower with a pivot lever and a start switch. The pivot lever and start switch are configured such that the operator needs to use one hand to operate the pivot lever while simultaneously activating (e.g., pressing) the start switch with the other hand to engage the cutting blades of the electric lawnmower. Because both hands are occupied when the cutting blades are engaged, the possibility of the operator being injured by the cutting blades is reduced or eliminated. This makes the lawnmower much safer compared to models without this safety feature.
[0018] Figure 1This is an illustration of an electric lawnmower 100 according to an embodiment of the present disclosure. As shown, the electric lawnmower 100 includes a lawnmower body 102, a fixed handle 104, a set of wheels 106, a controller 108, a battery 110, an electric motor 112, a drive shaft 114, cutting blades 116, an electronic blade brake 118, an electric wheel motor 120, a pivot rod 122, and a start switch 124. Those skilled in the art will understand that the electric lawnmower 100 may include various other components, parts, mechanisms, and features in practical applications; for the sake of brevity, these components, parts, mechanisms, and features will not be described herein.
[0019] The lawnmower body 102 can be made of various materials, including metal, plastic, etc. The lawnmower body 102 can be constructed from one or more components bolted, riveted, welded, or otherwise fastened together. In one embodiment, the lawnmower body 102 is lightweight but durable enough to withstand the harsh conditions of repeated lawn maintenance. The lawnmower body 102 may feature a specific color scheme or bear markings (e.g., words, symbols, etc.) identifying the manufacturer of the electric lawnmower 100. As shown, the lawnmower body 102 typically houses a controller 108, a battery 110, a motor 112, a drive shaft 114, cutting blades 116, and an electronic blade brake 118.
[0020] The fixed handle 104 extends away from the lawnmower body 102 and allows the operator of the electric lawnmower 100 to maneuver or manipulate the electric lawnmower 100 in a desired direction while cutting the grass. In one embodiment, the fixed handle 104 is threaded or bolted to the lawnmower body 102. In one embodiment, the fixed handle 104 is pivotable relative to the lawnmower body 102 and / or can be folded for compact storage of the electric lawnmower 100.
[0021] In one embodiment, the angle of the fixed handle 104 is configured relative to the lawnmower body 102 to accommodate operators of different heights. In one embodiment, the fixed handle 104 is hollow, allowing wiring to pass through it. In one embodiment, the fixed handle 104 supports wiring extending between the controller 108 and the pivot rod 122, as well as wiring extending between the controller 108 and the start switch 124. The wiring can be routed within and through the fixed handle 104, or it can be fixed to the outer surface of the fixed handle 104.
[0022] The wheel 106 may be formed of, for example, rubber, plastic, metal, or a combination thereof. The wheel 106 is typically attached to the lawnmower body 102 via an axle. Thus, the wheel 106 allows the electric lawnmower 100 to roll, which allows the cutting blade 116 to move across the lawn as the electric lawnmower 100 moves. In one embodiment, the wheel 106 is height-adjustable relative to the lawnmower body 102. By moving the wheel 106 higher on the lawnmower body 102, the cutting blade 116 is lowered to cut the grass shorter. Conversely, by moving the wheel 106 downward on the lawnmower body 102, the cutting blade 116 is raised to cut the grass longer.
[0023] In one embodiment, wheel 106 includes an electric wheel motor 120. The electric wheel motor 120 is configured to drive wheel 106, causing wheel 106 to rotate in a desired direction (e.g., clockwise or counterclockwise). In one embodiment, one or more electric wheel motors 120 are driven at speeds different from other electric wheel motors 120 to steer (or assist in steering) the electric lawnmower 100. In one embodiment, the electric wheel motor 120 drives the wheel at variable speeds based on the position of pivot 122 relative to the fixed handle 104, as will be discussed more fully below.
[0024] When the operator turns it on, the electric wheel motor 120 typically propels the electric lawnmower 100 in a forward direction (as indicated by the arrow). By turning on the electric wheel motor 120, the operator of the electric lawnmower 100 does not have to apply considerable physical force to the fixed handle 104 in order to move the electric lawnmower 100 forward or backward.
[0025] Controller 108 is operatively connected to battery 110, electric motor 112, electronic blade brake 118, electric wheel motor 120, pivot 122, and start switch 124. In one embodiment, controller 108 is coupled to one or more of these components via a wired connection, a wireless connection, or some combination thereof. Although controller 108 is depicted as being within lawnmower body 102, all or part of controller 108 may be located on fixed handle 104, wheel 106, or elsewhere. Additionally, although controller 108 is... Figure 1 While depicted as a single component, the controller 108 can be implemented as multiple discrete parts, boards, or electronic components distributed throughout the electric lawnmower 100.
[0026] The controller 108 can monitor battery voltage, battery charging rate, battery efficiency, battery life, load (e.g., load on the electric motor 112 due to the cutting blade 116 encountering grass), current consumption on the battery, or other parameters of the battery 110 via one or more sensors. The controller 108 can also signal the electric motor 112 to start or stop based on signals received from the operator of the electric lawnmower 100. Furthermore, the controller 108 can signal the electric motor 112 to supply more or less power to the drive shaft 114, which in turn causes the cutting blade to rotate faster or slower, respectively. For example, when there is no load (e.g., the cutting blade 116 is not encountering grass), the controller 108 can slow the cutting blade 116 to eco-mode, or when the load is heavy (e.g., the grass is persistent), the controller 108 can keep the cutting blade 116 at a high speed. In one embodiment, when the battery voltage drops below a predetermined threshold, the controller 108 instructs the electric motor 112 to drive the cutting blade 116 at a maximum revolutions per minute (RPM) to compensate for power loss and extract as much energy as possible from the battery 110. Furthermore, the controller 108 is able to monitor the speed of the wheel 106 due to the electric wheel motor 120.
[0027] The controller 108 can also turn the electronic blade brake 118 on or off. When on, the electronic blade brake 118 prevents or inhibits the rotation of the cutting blade 116. When off, the electronic blade brake 118 allows the cutting blade 116 to rotate freely under the power of the electric motor 112. The controller 108 can also monitor the load on the electric motor 112, which can indicate the rotational speed of the cutting blade 116.
[0028] In one embodiment, one end of the pivot 122 is connected to the fixed handle 104 via a pin or shaft, allowing the free end of the pivot 122 to move closer to or further away from the end 126 of the fixed handle 104. Thus, the pivot 122 pivots relative to the fixed handle 104. In one embodiment, the controller 108 can determine the position of the pivot 122 relative to the fixed handle 104 via one or more proximity sensors, latches, switches, optical sensors, or other sensing components in or on the electric lawnmower 100.
[0029] Although pivot 122 is Figure 1The pivot lever 122 is depicted as being located generally below the fixed handle 104, but it can be oriented in other ways. For example, the pivot lever 122 can be positioned above or near the fixed handle 104. Although the start switch 124 is depicted as being mounted near the end of the fixed handle 104, it can be oriented in other ways. For example, the start switch 124 can be positioned on one side of the fixed handle 104, on a control panel mounted between the parallel legs of the fixed handle 104, etc.
[0030] In one embodiment, controller 108 activates or deactivates the cutting blades 116 based on a signal received from the operator of the electric lawnmower 100. In one embodiment, the operator provides the signal by placing pivot 122 at a specific position relative to the fixed handle 104 and simultaneously actuating the start switch 124, as will be explained more fully below. In one embodiment, the start switch 124 is actuated by the operator of the electric lawnmower 100 by pressing, pressing, flipping, turning on, clicking, or otherwise interacting with the operator of the electric lawnmower 100. In one embodiment, the start switch 124 may be a fingerprint reader that allows the cutting blades 116 to be activated only when the operator's fingerprint matches a fingerprint stored in the memory of controller 108.
[0031] In one embodiment, the controller 108 includes an array of start switches configured to receive one or more signals generated when the operator of the electronic lawnmower 100 places the pivot 122 in a specific position relative to the fixed handle 104, and simultaneously actuate the start switch 124 to activate the cutting blade 116. In one embodiment, the start switch array (also referred to as a relay) is a redundant normally open passive electronic circuit.
[0032] In one embodiment, the electronic circuitry is powered by battery 110. In another embodiment, the electronic circuitry keeps the start switch array in a safe, voltage- and current-free state, preventing the motor 112, which powers the cutting blade 116, from starting accidentally or unintentionally. That is, the electronic circuitry typically interrupts the signal to the motor 112. In one embodiment, the electronic circuitry is self-powered to maintain the signal to the motor 112 when the cutting blade is started 116. In another embodiment, the electronic circuitry resets to a voltage- and current-free state when the pivot 122 is released.
[0033] In one embodiment, the electronic circuitry is independent of other systems or electronic circuitry in the electric lawnmower 100. In another embodiment, the electronic circuitry is powered by a small, long-lasting battery (not shown) independent of battery 110.
[0034] In one embodiment, the controller 108 starts or stops the electric wheel motor 120 based on a signal received from the operator of the electric lawnmower 100. In one embodiment, the operator provides the signal by manipulating the pivot 122 to a specific position, as will be explained more fully below. In another embodiment, the operator provides the signal by manipulating the pivot 122 to a specific position and placing a speed selector (e.g., a switch, knob, etc.) in one of a plurality of available positions. Each position of the speed selector affects the speed range of the pivot 122. For example, the higher the position of the speed selector when the pivot 122 is fully pivoted toward the fixed handle 104, the higher the maximum speed, torque, power, climbing ability, etc., of the electric lawnmower 100. In one embodiment, the electric wheel motor 120 is configured to propel the electric lawnmower 100 faster as the pivot 122 pivots further toward the end 126 of the fixed handle 104.
[0035] Figure 2 This is an illustration of a pivot rod 122 in the fully disconnected position 128 according to an embodiment of the present disclosure. In the disconnected position 128, the free end of the pivot rod 122 is pivoted or rotated approximately zero degrees (0°) toward the end 126 of the fixed handle 104. In one embodiment, the pivot rod 122 is typically biased to the fully disconnected position 128 by one or more springs or biasing members. In such an embodiment, the pivot rod 122 does not pivot toward the end 126 of the fixed handle 104 at all.
[0036] In one embodiment, controller 108 is configured to keep the electronic blade brake 118 engaged when the pivot is in the fully disengaged position 128. This prevents the cutting blade 116 from rotating. In another embodiment, controller 108 is configured to release the electronic blade brake 118 when the pivot 122 leaves the fully disengaged position 128.
[0037] Figure 3 This is an illustration of a pivot rod 122 disposed at a first pivot angle 130 according to an embodiment of the present disclosure. At the first pivot angle 130, the free end of the pivot rod 122 pivots or rotates about one degree (1°) to about forty-nine degrees (49°) toward the end 126 of the fixed handle 104.
[0038] In one embodiment, the controller 108 is configured to keep the cutting blade 116 and the electric wheel motor 120 off (e.g., disconnected) when the pivot 122 is positioned anywhere from the fully disconnected position 128 up to and including the first pivot angle 130 and the start switch 124 has not yet been activated.
[0039] Figure 4This is an illustration of a pivot rod 122 disposed at a second pivot angle 132 according to an embodiment of the present disclosure. At the second pivot angle 132, the free end of the pivot rod 122 pivots or rotates about fifty degrees (50°) toward the end 126 of the fixed handle 104.
[0040] In one embodiment, the controller 108 is configured to keep the electric wheel motor 120 off and open the cutting blade 116 when the pivot 122 is positioned at the second pivot angle 132 and the start switch 124 is activated. That is, when the pivot 122 is at the second pivot angle 132 and the start switch 124 has been activated, the controller 108 will only signal the cutting blade 116 to start. However, if the pivot 122 is in any position other than the second pivot angle 132, the controller 108 will not activate the cutting blade 116 when the start switch 124 has been activated.
[0041] In one embodiment, the start switch 124 is activated by a momentary press. As used herein, a momentary press means a press for about 3 seconds or less, or a press for more than about 1 second but less than about 3 seconds.
[0042] In one embodiment, the pivot lever 122 and the start switch 124 are configured such that the operator needs to use one hand to operate the pivot lever 122 while simultaneously activating (e.g., pressing) the start switch 124 with the other hand to engage the cutting blade 116. For example, the pivot lever 122 and the start switch 124 may be sufficiently spaced on the electric lawnmower 100 to ensure that each component must be operated simultaneously with one of the operator's hands. Because both hands are occupied when the cutting blade 116 is engaged, the possibility of the operator being injured by the cutting blade is reduced or eliminated. This makes the lawnmower much safer compared to models without this safety feature.
[0043] In one embodiment, controller 108 is configured to signal to the operator of the electric lawnmower 100 that pivot 122 has reached a second pivot angle 132, and that activation of start switch 124 will open cutting blade 116 while pivot 122 is held at the second pivot angle 132. In one embodiment, the signal is an auditory signal, a visual signal, a tactile feedback signal, or a combination thereof. For example, when pivot 122 has reached the second pivot angle 132, controller 108 may illuminate an indicator light, emit a chirping or beeping sound, and / or cause one or both of the fixed handle 104 and pivot 122 to vibrate gently.
[0044] Figure 5This is an illustration of a pivot rod 122 disposed at a third pivot angle 134 according to an embodiment of the present disclosure. At the third pivot angle 134, the free end of the pivot rod 122 pivots or rotates approximately 51 degrees to approximately 100 degrees (100 degrees) toward the end 126 of the fixed handle 104. In one embodiment, the pivot rod 122 is substantially parallel to the fixed handle 104 and is at 100 degrees (100 degrees) in the fully engaged position.
[0045] In one embodiment, the controller 108 is configured to activate the electric wheel motor 120 after the cutting blade 116 has been opened, when the pivot 122 transitions from the second pivot angle 132 to the third pivot angle 134. In one embodiment, the electric wheel motor 120 is configured to propel the electric lawnmower 100 faster as the pivot 122 pivots further toward the end 126 of the fixed handle 104 and / or according to the position of the speed selector described above.
[0046] In one embodiment, the controller 108 is configured to turn on the electric wheel motor 120 and keep the cutting blade 116 closed when the pivot 122 has reached the third pivot angle 134 and the start switch 134 has not yet been activated. This allows the electric lawnmower 100 to move forward without the cutting blade 116 being open.
[0047] In one embodiment, the controller 108 is configured to shut down the electric wheel motor 120 and the cutting blade 116 when the pivot 122 returns from the first pivot angle 130, the second pivot angle 132, or the third pivot angle 134 to the fully disconnected position 128.
[0048] Figure 6 This is a diagram 600 illustrating the operation of an electric lawnmower 100 using a pivot 122 and a start switch 124 according to an embodiment of the present disclosure. As shown, when the pivot 122 is positioned anywhere from the fully disengaged position 128 up to and including the first pivot angle 130 (box 602) and the start switch 124 is not yet activated (box 604), the cutting blade 116 remains closed (box 606) and the electric wheel motor 120 remains closed (box 608).
[0049] When the pivot 122 is at the second pivot angle 132 (box 610) and the start switch 124 is activated (box 612), the cutting blade 116 is opened (box 614) and the electric wheel motor 120 remains closed (box 616).
[0050] After the cutting blade 116 has been opened (box 614), the electric wheel motor 120 is turned on (box 624) as the pivot rod 122 transitions from the second pivot angle 132 to the third pivot angle 134 (box 618). Here, since the cutting blade 116 remains on (box 622), it is not necessary to activate the start switch 124 (box 620). In one embodiment, the transition from the second pivot angle 132 to the third pivot angle 134 must be part of a continuous action. That is, the pivot rod 122 must move toward the third pivot angle 134 without moving back toward the first pivot angle 130. If the pivot rod 122 moves backward toward the first pivot angle 130 after the cutting blade 116 has been opened, the cutting blade 116 is disengaged and the electric wheel motor 120 remains off.
[0051] When the pivot 122 transitions from the second pivot angle 132 to the third pivot angle 134 (box 626) and the start switch 124 is not activated in time (box 628) to start the cutting blade 116, as described above, the cutting blade 116 remains closed (box 630) and the electric wheel motor 120 is turned on (box 632).
[0052] Figure 7 According to embodiments of this disclosure, a lawnmower (e.g., Figure 1 Method 700 is implemented by an electric lawnmower 100. Method 700 can be performed by an operator of the electric lawnmower 100 to cut grass, for example, a lawn.
[0053] In frame 702, when the pivot 122 of the electric lawnmower 100 is positioned anywhere from the fully disengaged position 128 up to and including the first pivot angle 130 and the start switch 124 of the electric lawnmower 124 has not been activated, the electric lawnmower 100 keeps the cutting blade 116 and the electric wheel motor 120 off.
[0054] In frame 704, when pivot 122 is set at second pivot angle 132 and start switch 124 is activated, electric lawnmower 100 keeps electric wheel motor 120 off and turns on cutting blade 116.
[0055] In frame 706, after the cutting blade 116 has been opened, the electric lawnmower 100 turns on the electric wheel motor 120 when the pivot 122 transitions from the second pivot angle 132 to the third pivot angle 134.
[0056] In one embodiment, method 700 further includes shutting off the electric wheel motor 120 and the cutting blade 116 when the pivot 122 returns to the fully disengaged position 128. In one embodiment, method 700 further includes keeping the cutting blade 116 and the electric wheel motor 120 off when the start switch 124 is activated and the pivot 122 is in any position other than at the second pivot angle 132. In one embodiment, method 700 further includes turning on the electric wheel motor 120 and keeping the cutting blade 116 off when the pivot 122 has reached the third pivot angle 134 and the start switch 124 has not yet been activated.
[0057] Figure 8 This is a schematic diagram of a computing device 800 (e.g., controller 108) according to an embodiment of the present disclosure. The computing device 800 is adapted to implement the embodiments disclosed herein. The computing device 800 includes an ingress port 810 and a receiver unit (Rx) 820 for receiving data; a processor, logic unit, or central processing unit (CPU) 830 for processing data; a transmitter unit (Tx) 840 and an egress port 850 for transmitting data; and a memory 860 for storing data. The computing device 800 may also include optoelectronic (OE) components and electro-optical (EO) components coupled to the ingress port 810, receiver unit 820, transmitter unit 840, and egress port 850 for the exit or entry of optical or electrical signals.
[0058] Processor 830 is implemented in hardware and software. Processor 830 can be implemented as one or more CPU chips, cores (e.g., a multi-core processor), field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), or digital signal processors (DSPs). Processor 830 communicates with ingress port 810, receiver unit 820, transmitter unit 840, egress port 850, and memory 860. Processor 830 includes a security module 870. Security module 870 is capable of implementing one or more of the above-described embodiments or actions. For example, security module 870 implements, processes, prepares, or provides various functions disclosed herein. Therefore, the inclusion of security module 870 provides a substantial improvement to the functionality of computing device 800 and enables transitions of computing device 800 to different states. Alternatively, security module 870 is implemented as a computer program product comprising instructions stored in memory 860 and executed by processor 830.
[0059] The computing device 800 may also include input and / or output (I / O) devices 880 for communicating data to and from a user, and for receiving input from and providing output to a network administrator. I / O devices 880 may include output devices such as a display for showing video data, speakers for outputting audio data, etc. I / O devices 880 may also include input devices such as a keyboard, mouse, trackball, sensors, etc., and / or corresponding interfaces for interacting with these output devices.
[0060] Memory 860 includes one or more disk drives, tape drives, and solid-state drives, and can be used as an overflow data storage device to store a program when such a program is selected for execution, and to store instructions and data read during program execution. Memory 860 can be volatile and / or non-volatile, and can be read-only memory (ROM), random access memory (RAM), ternary content-addressable memory (TCAM), and / or static random access memory (SRAM).
[0061] While several embodiments have been provided in this disclosure, it will be understood that the disclosed systems and methods may be embodied in many other specific forms without departing from the spirit or scope of this disclosure. These examples are intended to be illustrative rather than restrictive and are not intended to be limited to the details given herein. For example, various elements or components may be combined or integrated into another system, or certain features may be omitted or not implemented.
[0062] Furthermore, without departing from the scope of this disclosure, the techniques, systems, subsystems, and methods described and illustrated as discrete or separate in the various embodiments may be combined or integrated with other systems, components, techniques, or methods. Other examples can be identified by those skilled in the art and may be changed, substituted, and modified without departing from the spirit and scope of this disclosure.
Claims
1. An electric lawnmower, comprising: A pivot rod is coupled to a fixed handle; Turn on the switch; Cutting blade; Electric wheel motor; as well as A controller communicates with the pivot rod, the start switch, the cutting blade, and the electric wheel motor, wherein the controller is configured to: When the pivot rod is positioned at any position from the fully disconnected position up to and including the first pivot angle and the start switch has not been activated, the cutting blade and the electric wheel motor remain off. When the pivot rod is positioned at the second pivot angle and the start switch is activated, the electric wheel motor remains off and the cutting blade is turned on; and After the cutting blade has been opened, the electric wheel motor is activated when the pivot rod transitions from the second pivot angle to the third pivot angle. The controller is configured to provide a signal to the operator of the electric lawnmower to indicate that the pivot has reached the second pivot angle, and that activation of the start switch will turn on the cutting blade while the pivot is held at the second pivot angle.
2. The electric lawnmower according to claim 1, wherein, The controller is configured to release the electronic blade brake when the pivot rod leaves the fully disconnected position.
3. The electric lawnmower according to any one of claims 1-2, wherein, The controller is configured to shut off the electric wheel motor and the cutting blade when the pivot returns to the fully disconnected position.
4. The electric lawnmower according to any one of claims 1-2, wherein, The controller is configured to keep the cutting blade and the electric wheel motor off when the start switch is activated and the pivot is in any position outside the second pivot angle.
5. The electric lawnmower according to any one of claims 1-2, wherein, The controller is configured to turn on the electric wheel motor and keep the cutting blade closed when the pivot has reached the third pivot angle and the start switch has not yet been activated.
6. The electric lawnmower according to any one of claims 1-2, wherein, The start switch is activated by being pressed temporarily.
7. The electric lawnmower according to any one of claims 1-2, wherein, The controller is configured to engage the electronic blade brake when the pivot has returned to the fully disengaged position.
8. The electric lawnmower according to any one of claims 1-2, wherein, The fully disengaged position, the first pivot angle, the second pivot angle, and the third pivot angle of the pivot rod are all determined relative to the fixed handle, wherein the fully disengaged position is zero degrees, the first pivot angle is between one degree and forty-nine degrees, the second pivot angle is fifty degrees, and the third pivot angle is between fifty-one degrees and one hundred degrees.
9. The electric lawnmower according to any one of claims 1-2, wherein, The electric wheel motor is configured to propel the electric lawnmower more quickly as the pivot rod pivots further toward the fixed handle.
10. A method implemented by an electric lawnmower, comprising: When the pivot of the electric lawnmower is set at any position from the fully disengaged position up to and including the first pivot angle and the start switch of the electric lawnmower has not been activated, the cutting blades and electric wheel motor remain off; When the pivot rod is set at the second pivot angle and the start switch is activated, the electric wheel motor remains off and the cutting blade is turned on; as well as After the cutting blade has been opened, the electric wheel motor is activated when the pivot rod transitions from the second pivot angle to the third pivot angle. The method further includes providing a signal to the operator of the electric lawnmower to indicate that the pivot has reached the second pivot angle, and that activation of the start switch will turn on the cutting blade while the pivot is held at the second pivot angle.
11. The method according to claim 10, wherein, The method further includes: turning off the electric wheel motor and the cutting blade when the pivot returns to the fully disconnected position.
12. The method according to any one of claims 10-11, wherein, The method further includes: keeping the cutting blade and the electric wheel motor off when the start switch is activated and the pivot is in any position other than the second pivot angle.
13. The method according to any one of claims 10-11, wherein, The method further includes: when the pivot rod has reached the third pivot angle and the start switch has not yet been activated, turning on the electric wheel motor and keeping the cutting blade closed.
14. A computer program product comprising instructions stored on a non-transitory computer-readable medium, the instructions, when executed by a processor, causing an electric lawnmower to: When the pivot is set at any position from the fully disengaged position up to and including the first pivot angle and the start switch is not activated, keep the cutting blade and electric wheel motor off; When the pivot rod is positioned at the second pivot angle and the start switch is activated, the electric wheel motor remains off and the cutting blade is turned on; and After the cutting blade has been opened, the electric wheel motor is activated when the pivot rod transitions from the second pivot angle to the third pivot angle. in, The instruction also causes the electric lawnmower to signal to the operator that the pivot has reached the second pivot angle, and that activation of the start switch will turn on the cutting blade while the pivot remains at the second pivot angle.
15. The computer program product according to claim 14, wherein, When the pivot returns to the fully disconnected position, the command also causes the electric lawnmower to shut down the electric wheel motor and the cutting blade.
16. The computer program product according to any one of claims 14-15, wherein, The instruction also causes the electric lawnmower to keep the cutting blades and the electric wheel motor off when the start switch is activated and the pivot is in any position other than the second pivot angle.
17. The computer program product according to any one of claims 14-15, wherein, When the pivot rod has reached the third pivot angle and the start switch has not yet been activated, the command also causes the electric lawnmower to turn on the electric wheel motor and keep the cutting blades closed.