Fastener driver

Abstract

The application discloses a fastener driver, comprising: a striking assembly comprising a piston and a striker connected to the piston; a transmission mechanism comprising a driving member configured to drive the striking assembly to move backward to a top dead center position; an energy storage device configured to drive the striking assembly to move forward to a bottom dead center position to output a striking force, the energy storage device comprising a venting portion for the energy storage device to charge and discharge; a control device configured to control the striker to be in a shutdown position between the top dead center position and the bottom dead center position; wherein the striking assembly is configured to move backward to and stay at a preparation position beyond the shutdown position to be close to the top dead center position or move backward to and stay at a charging position reaching or beyond the top dead center position before the energy storage device is charged. The fastener driver is safe and convenient to use.

Description

Technical Field

[0001] This application relates to the field of power tools, and more specifically to a fastener driver. Background Technology

[0002] One type of fastener actuator in related technologies is commonly used to secure workpieces. Users inject fasteners into the workpiece to achieve fixation. Existing fastener actuators require pre-charging an energy storage device to better compress air and store elastic potential energy. Leakage can occur during use, necessitating periodic replenishment of the energy storage device. Over-charging during replenishment can be dangerous.

[0003] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0004] One object of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the object of this application is to provide a fastener driver that is safe and convenient to use.

[0005] To achieve the above objectives, this application adopts the following technical solution: A fastener driver, wherein the striking component is configured to move backward to and remain in a preparatory position that passes the stop position and approaches the top dead center position before the energy storage device is inflated, or to move backward to and remain in an inflated position that reaches or passes the top dead center position.

[0006] In some embodiments, the fastener driver includes: a striking assembly including a piston and a striking pin connected to the piston; a transmission mechanism including a drive member configured to drive the striking assembly to move rearward to a top dead center position; an energy storage device configured to drive the striking assembly to move forward to a bottom dead center position to output a striking force, the energy storage device including a vent for charging and deflating the energy storage device; and a control device configured to control the striking pin to a stop position, the stop position being located between the top dead center position and the bottom dead center position.

[0007] In some embodiments, the striking component is configured to move forward toward the lower dead center position when the energy storage device is inflated.

[0008] In some embodiments, the striking component is configured to move forward to the lower dead center position when the energy storage device is inflated.

[0009] In some embodiments, before the energy storage device is inflated, the transmission mechanism drives the striking component to move backward to and remain in the inflated position.

[0010] In some embodiments, the striking component is configured to move backward to and remain in the inflation position when the energy storage device deflates through the vent.

[0011] In some embodiments, the energy storage device includes a first cylinder, and at least a portion of the striking component is configured to move within the first cylinder.

[0012] In some embodiments, the transmission mechanism includes a motor configured to brake to stop the rearward movement of the striking component. When the motor brakes, the motor is configured to rotate a first number of braking turns from the start of braking to the end of braking before the energy storage device is charged, and a second number of braking turns from the start of braking to the end of braking after the energy storage device is charged. The difference between the first number of braking turns and the second number of braking turns is greater than or equal to 6 turns and less than or equal to 12 turns.

[0013] In some embodiments, the fastener driver includes a detection component for detecting the position of the striking component relative to the inflation position.

[0014] In some embodiments, the fastener driver includes a display device that shows the location of the striking component.

[0015] In some embodiments, the transmission mechanism includes a clutch component that restricts forward movement of the striking component when the striking component and the drive component are engaged.

[0016] The advantages of this application are that the fastener driver is convenient and safe to use. Attached Figure Description

[0017] Figure 1 This is a perspective view of a fastener driver according to an embodiment of this application; Figure 2 yes Figure 1 Left view of the fastener driver in the image; Figure 3 yes Figure 1 Front view of the fastener driver in the middle; Figure 4 yes Figure 3 A cross-sectional view of the fastener driver along the x1 plane; Figure 5 yes Figure 1 Front view of the transmission mechanism and housing of the fastener driver; Figure 6 yes Figure 5 A sectional view of the transmission mechanism and housing along the x2 plane; Figure 7 yes Figure 5 A sectional view of the transmission mechanism and housing along plane x3; Figure 8 yes Figure 1 A top view of the striking assembly and drive element of the fastener driver in the image; Figure 9 yes Figure 1 Front view of the striking assembly and drive element of the fastener driver in the middle; Figure 10 yes Figure 9 A cross-sectional view of the striking assembly and drive element of the fastener driver in the x4 plane at the bottom dead center position; Figure 11 yes Figure 9 A cross-sectional view of the striking assembly and drive element of the fastener driver in the x4 plane at the top dead center position; Figure 12 yes Figure 1 A schematic diagram of the first meshing tooth and the first driving tooth of the fastener driver in the top dead center position, the stop position, the switching position and the bottom dead center position; Figure 13 yes Figure 1 A schematic diagram showing the relationship between the travel distance of the striker of the fastener driver from the lower dead center position to the upper dead center position and the driving torque, included angle α, lever arm and applied force F; Figure 14 yes Figure 1 A perspective view of the transmission mechanism, moving parts, detection mechanism, and guide components of the fastener driver; Figure 15 yes Figure 1 A top view of the transmission mechanism, moving parts, detection mechanism, and guide components of the fastener driver; Figure 16 yes Figure 1 Top view of the fastener driver's striking assembly and drive element at the top dead center position; Figure 17 yes Figure 1 Side view of the transmission mechanism, moving parts, detection mechanism and guide components of the fastener driver; Figure 18 yes Figure 1 A schematic diagram of the moving parts, detection mechanism and drive parts of the fastener driver within a first preset position range; Figure 19 yes Figure 1 A perspective view of the fastener driver's support frame and energy storage device; Figure 20 yes Figure 1 A perspective view of the fastener driver support frame, energy storage device, and second guide in the middle; Figure 21 yes Figure 1 A bottom view of the fastener driver support frame, energy storage device, and second guide in the middle; Figure 22 yes Figure 1A perspective view of the support frame of one embodiment of the fastener driver; Figure 23 yes Figure 1 A perspective view of the support frame, energy storage device, and guide assembly of one embodiment of the fastener driver; Figure 24 yes Figure 1 A bottom view of the support frame, energy storage device, and guide assembly of one embodiment of the fastener driver; Figure 25 yes Figure 1 The energy storage device of the fastener driver and its cross-sectional views at the top dead center and bottom dead center positions. Figure 26 yes Figure 1 Top view of the striking component of the fastener driver in the middle; Figure 27 yes Figure 1 A top view of the energy storage device and striking component of the fastener driver in the image. Figure 28 yes Figure 1 A cross-sectional view of the energy storage device of the fastener driver in the image along the x5 plane. Figure 29 yes Figure 1 A perspective view of the magazine and anti-aircraft gun assembly with fastener drivers in the middle. Figure 30 yes Figure 1 Side view of the magazine and anti-aircraft gun assembly with fastener driver in the middle; Figure 31 yes Figure 1 A cross-sectional view of the anti-aircraft gun assembly and part of the magazine, including the fastener driver. Figure 32 yes Figure 1 Front view of the anti-aircraft component of the fastener driver in the middle; Figure 33 yes Figure 1 The magazine and anti-aircraft gun assembly of the fastener driver in the middle are shown in an exploded view at an angle; Figure 34 yes Figure 1 The magazine and anti-aircraft gun assembly with fastener drivers in the middle are shown in an exploded view from another angle. Figure 35 yes Figure 1 Top view of the fastener driver in the image; Figure 36 yes Figure 1 A partial enlarged view of the venting section of the fastener driver in the image; Figure 37 yes Figure 1 A schematic diagram of the impact component of the fastener driver in the inflated position, ready position, stopped position and bottom dead center position. Figure 38 yes Figure 1 A flowchart of the energy storage device of the fastener driver during inflation; Figure 39 yes Figure 1 A perspective view of the air adapter and filter suitable for the fastener driver in the image; Figure 40 yes Figure 1 A cross-sectional view along a plane of the fastener driver, the applicable air adapter, and the filter. Figure 41 yes Figure 1 Exploded view of the air adapter and filter for the fastener driver in the image; Figure 42 yes Figure 1 Side view of the valve with fastener actuator in the middle; Figure 43 yes Figure 1 A cross-sectional view of the valve driven by the fastener in the middle; Figure 44 yes Figure 1 A cross-sectional view along another plane of the air adapter to which the fastener driver is applicable; Figure 45 yes Figure 1 Plan view of the air adapter and measuring device applicable to the fastener driver in the diagram; Figure 46 yes Figure 1 A perspective view of the housing and magazine of the fastener driver; Figure 47 yes Figure 1 Left view of the fastener driver housing and magazine; Figure 48 yes Figure 1 A cross-sectional view of the housing and magazine of the fastener driver along the x6 plane; Figure 49 yes Figure 48 Enlarged view of the housing and magazine of the fastener driver in the image; Figure 50 This is a rear view of a fastener driver in one embodiment of this application; Figure 51 yes Figure 50 Left view of the fastener driver in the image; Figure 52 yes Figure 51 A cross-sectional view of the fastener driver along the x7 plane; Figure 53 yes Figure 51 A cross-sectional view of the fastener driver along the x8 plane; Figure 54 yes Figure 50 Rear view of the fastener driver's energy storage device, gearbox, motor, trigger, and coupling. Figure 55 yes Figure 50 A partial enlarged view of the first and second housings of the fastener driver in the image; Figure 56 This is a left view of a fastener driver in one embodiment of this application; Figure 57 yes Figure 56 An exploded view of the magazine with fastener driver in the middle at an angle; Figure 58 yes Figure 56 An exploded view of the magazine with fastener driver in another angle; Figure 59 This is a perspective view of a fastener driver according to one embodiment of this application; Figure 60 yes Figure 59 An exploded view of the fastener driver's guide assembly, striker, and fastener at an angle; Figure 61 yes Figure 59 A partial enlarged view of the first guide element of the fastener driver in the image; Figure 62 yes Figure 59 A perspective view of the first guide, the firing pin, and the fastener in the fastener driver; Figure 63 yes Figure 59 A schematic diagram of the guide assembly, firing pin, and fastener of the fastener driver in the diagram; Figure 64 yes Figure 59 An exploded view of the fastener driver's guide assembly, firing pin, and fastener from another angle; Figure 65 yes Figure 59 Left view of the fastener driver's guide assembly, fastener, and lifting element; Figure 66 yes Figure 65 The diagram shows a close-up view of the fastener driver's boot assembly and the fastener itself. Detailed Implementation

[0018] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0019] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0020] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0021] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0022] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0023] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0024] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0025] In this application, the terms "controller," "processor," "central processing unit," "CPU," and "MCU" are used interchangeably. When using the unit "controller," "processor," "central processing unit," "CPU," or "MCU" to perform a specific function, unless otherwise stated, these functions may be performed by a single or multiple of the aforementioned units.

[0026] In this application, the terms "device," "module," or "unit" are used to describe devices that can be implemented in hardware or software to perform a specific function.

[0027] In this application, the terms “calculation,” “judgment,” “control,” “determine,” “identify,” etc., refer to the operation and process of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0028] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 and Figure 2As shown, this embodiment provides a fastener driver 100. The fastener driver 100 provided in this embodiment is a pre-charged dual-cylinder type fastener driver. The fastener driver can also be a single-cylinder type, a dual-cylinder type, a pre-charged type, a non-pre-charged type, a spring type, etc., and is not limited here. The fastener driver 100 can generate an impact force on the fastener 10, thereby driving the fastener 10 into the workpiece. The fastener driver 100 includes a housing 110 and a magazine 120. The housing 110 includes a main housing 111, a transmission part 112, and a grip part 113 for the user to hold. The magazine 120 is used to hold the fastener 10, and at least a portion of the magazine 120 is disposed on the outside of the housing 110. The fastener 10 provided in this embodiment is a nail. The size of the nail can be 15Ga, 16Ga, 18Ga, 23Ga, 25Ga, etc., and is not limited here. The angle at which nails can be used can be 0 degrees, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, etc., and there is no limitation here. Nails can be straight nails, U-shaped nails, etc., and there is no limitation here.

[0030] One end of the grip 113 is connected to the main housing 111. A trigger 1131 is provided on the grip 113, and the trigger 1131 is connected to the main switch. The user triggers the main switch via the trigger 1131 to control the start and stop of the fastener driver 100. The fastener driver 100 includes a connecting portion 114. The other end of the grip 113 is connected to the connecting portion 114, which is used to connect to a DC or AC power source. In this embodiment, the battery pack 115 is detachably mounted on the connecting portion 114; the specifications and power of the battery pack 115 are not limited here.

[0031] like Figures 3 to 4 As shown, the fastener driver 100 also includes an impact assembly 130, a transmission mechanism 140, an energy storage device 150, and a motor 160. The impact assembly 130 includes a striker 131. The striker 131 outputs an impact force to the fastener 10 to drive the fastener 10 into the workpiece. The energy storage device 150 drives the striker 131 forward to output the impact force. The transmission mechanism 140 drives the striker 131 backward to store energy in the energy storage device 150. A receiving space is formed inside the main housing 111 to accommodate at least a portion of the energy storage device 150 and the impact assembly 130. The main housing 111 supports at least a portion of the energy storage device 150. The motor 160 drives at least the transmission mechanism. A battery pack 115 provides power to the motor 160. A receiving space is formed inside the transmission section 112. At least a portion of the motor 160 and the transmission mechanism 140 are accommodated in the transmission section 112. The transmission section 112 supports at least a portion of the motor 160 and the transmission mechanism 140.

[0032] like Figures 3 to 7As shown, in this embodiment, motor 160 is an electric motor. Motor 160 includes a motor output shaft 161. Transmission mechanism 140 includes a gear set 141 and a drive member 142. Motor output shaft 161 drives gear set 141 to rotate. Gear set 141 includes gear set output shaft 1411. Gear set output shaft 1411 drives drive member 142 to move. Drive member 142 drives striker 131 to move. Gear set 141 includes multi-stage planetary gears, including at least two stages of planetary gears. Each stage of planetary gear uses the same number of teeth, module, size, and transmission ratio, reducing manufacturing costs.

[0033] The transmission unit 112 is fixed by screws 112a. Within the transmission unit 112, the vertical distance between the gear set 141 and the motor 160 is relatively large, allowing the screws 112a to retract radially inward along the transmission unit 112. Part of the screws 112a are located between the gear set 141 and the motor 160, fully utilizing the space between them. This reduces the radial dimension of the transmission unit 112, and the outer surface does not bulge due to the installation of the screws 112a, resulting in an aesthetically pleasing, simple, and low-cost design.

[0034] The fastener driver 100 includes an air inlet 1121. Multiple air inlets 1121 may be present. In this embodiment, the air inlet 1121 is disposed between the transmission portion 112 and the connecting portion 114. The air inlet 1121 is located between the motor 160 and the PCB board, making full use of the space in the housing 110 and improving the heat dissipation efficiency of the motor 10. The air inlet 1121 is a hole, and the hole is strip-shaped. The housing 110 has a dustproof structure formed at the air inlet 1121 that bends inward towards the housing 110 to prevent dust from entering the fastener driver 100. In some embodiments, the air inlet 1121 can also be used for air outlet.

[0035] The fastener driver 100 includes a trigger lever 121. The trigger lever 121 is connected to a safety switch, which opens when the trigger lever 121 is activated. With the safety switch open, when the user presses the trigger 1131, the firing pin 131 fires a fastener 10. After firing, the firing pin 131 remains in a stopped position, waiting for the user to press the trigger 1131 again to fire the next fastener 10. In some embodiments, with the trigger 1131 pressed, the firing pin 131 fires one fastener 10 each time the safety switch is opened. After the firing pin 131 fires once, fasteners 10 from the magazine 120 are replenished to the front end of the firing pin 131, awaiting firing. The firing assembly 130 reciprocates under the drive of the transmission mechanism 140 and the energy storage device 150 to continuously fire the fasteners 10 sequentially. In each firing cycle, the fastener driver 100 fires one fastener 10.

[0036] The striking assembly 130 also includes a piston 122. A firing pin 131 is mounted on the piston 122, which is substantially located behind the firing pin 131. The energy storage device 150 includes a first cylinder 151. The first cylinder 151 houses at least a portion of the piston 122 and allows the piston 122 and a portion of the firing pin 131 to reciprocate within the first cylinder 151. When the transmission mechanism 140 drives the striking assembly 130 to move rearward, the air within the first cylinder 151 is compressed, and the energy storage device 150 stores energy. When the energy storage device 150 drives the striking assembly 130 to move forward, the elastic potential energy of the compressed air is converted into kinetic potential energy, and the striking assembly 130 outputs a striking force.

[0037] The main housing 111 includes a heat dissipation area 1111, which is a hollowed-out area on the main housing 111. The outer surface of the first cylinder 151 exchanges heat with the air through the heat dissipation area 1111, improving heat dissipation efficiency. There can be multiple heat dissipation areas 1111. The heat dissipation area 1111 is located in the rear half of the main housing 111. In this embodiment, at least 80% of the area of ​​the heat dissipation area 1111 allows the outer surface of the rear half of the first cylinder 151 to contact the air, dissipating heat from the part of the first cylinder 151 that generates significant heat. There are two heat dissipation areas 1111, located on the left and right sides of the main housing 111 respectively, and their shapes and positions are basically the same.

[0038] like Figures 8 to 12 As shown, the striking pin 131 includes a main body 132 and a plurality of meshing teeth 133. The plurality of meshing teeth 133 are disposed on the main body 132. The main body 132 is configured to extend along a first straight line 101. The striking pin 131 moves along the first straight line 101 to output a striking force to the fastener 10. It should be noted that the first straight line 101 is a virtual line, and the direction of the first straight line 101 is the front-to-back direction indicated by the first straight line 101. The direction of the first straight line 101 is the direction in which the fastener 10 is shot into the workpiece.

[0039] Multiple engagement teeth 133 are arranged substantially equidistantly on the impact pin 131 along its length. The engagement teeth 133 protrude from the main body 132 and are generally wavy. The engagement teeth 133 include a first engagement tooth 134. The first engagement tooth 134 stops the impact pin 131 in a stopped position. The impact pin 131 includes a tip 1311 and an end 1312 along its length. The end 1312 is mounted to the piston 122, and the tip 1311 contacts the fastener 10 when the impact pin 131 strikes the fastener 10. The first engagement tooth 134 is the closest to the tip 1311 of the impact pin 131 among the multiple engagement teeth 133. In some embodiments, at least one of the multiple engagement teeth 133 is shark fin shaped. The first engagement tooth 134 is thicker than the remaining multiple engagement teeth 133. The first engagement tooth 134 may also be coated or plated with a coating.

[0040] The driving component 142 includes driving teeth 143. There are multiple driving teeth 143, which mesh with multiple meshing teeth 133 to drive the striker 131 to move backward. The driving component 142 rotates about a second straight line 102, which, when viewed from above, represents a rotation point C. The rotation point C is labeled C1, C2, and C3 in the accompanying drawings at different positions. The driving component 142 is a driving wheel that rotates about the second straight line 102, that is, about the rotation point C when viewed from above. The driving component 142 includes a first fixed layer 144 and a second fixed layer 145 arranged substantially parallel to each other. Multiple driving teeth 143 are arranged circumferentially at approximately equal intervals between the first fixed layer 144 and the second fixed layer 145. The first fixed layer 144 and the second fixed layer 145 are plates of a certain thickness. The multiple driving teeth 143 are cylindrical, with both ends of the cylinder fixed to the first fixed layer 144 and the second fixed layer 145, respectively. In some embodiments, the drive teeth 143 are movable or rotatable to reduce friction between the drive teeth 143 and the meshing teeth 133. In some embodiments, the drive teeth 143 are fitted with movable or rotatable pin sleeves. In some embodiments, when the drive member 142 is viewed from above, the outer contours of the plurality of drive teeth 143 are tangent to the circumference of the same circle.

[0041] When the driving member 142 drives the striker 131 to move backward, the circumferential outer contours 135 of the plurality of meshing teeth 133 contact the circumferential outer contours 135 of the plurality of driving teeth 143. In this embodiment, there are seven driving teeth 143 and seven meshing teeth 133. The seven driving teeth 143 mesh with the seven meshing teeth 133 in sequence, one-to-one. In some embodiments, the number of driving teeth 143 and meshing teeth 133 may also be different. Since the front-to-back position of the driving member 142 remains unchanged, and it only rotates in place around the rotation point C, the striker 131 can move backward under the drive of the driving member 142 when the driving member 142 rotates. The driving member 142 includes a notch 146, which is an arc shape that is basically concave towards the rotation point C.

[0042] like Figures 9 to 10 As shown, the drive member 142 and the striker 131 are viewed from directly above the fastener driver 100. When the notch 146 rotates to a substantially upward-facing opening, the first drive tooth 143 on the left side of the notch 146 is named the first drive tooth 147, and the first drive tooth 143 on the right side of the notch 146 is named the seventh drive tooth 148. The plurality of engaging teeth 133 also includes a seventh engaging tooth 136. The first drive tooth 147 engages with the first engaging tooth 134 during rotation, and the seventh drive tooth 148 engages with the seventh engaging tooth 136 during rotation. Each drive tooth 143 engages with its corresponding engaging tooth 133 once per revolution of the drive member 142.

[0043] The firing pin 131 can be moved to multiple positions. For example... Figure 4 As shown, the fastener driver 100 includes a buffer 123. When the firing pin 131 is at the bottom dead center position, the piston 122 contacts the buffer 123, the striking assembly 130 stops moving forward, and the firing pin 131 moves substantially to its forwardmost position. The fastener 10 is ejected by the firing pin 131. The seventh drive tooth 148 engages with the seventh meshing tooth 136, and the motor 160 drives the transmission mechanism 140 to drive the drive member 142 to rotate counterclockwise. Figure 6 As shown, the transmission mechanism 140 includes a clutch assembly 149, which prevents the drive member 142 from rotating clockwise.

[0044] like Figures 8 to 12 As shown, during the counterclockwise rotation of the drive member 142, multiple drive teeth 143 sequentially engage with multiple meshing teeth 133. Driven by the drive member 142, the striking assembly 130 overcomes atmospheric pressure and moves backward from its bottom dead center position, where the first drive tooth 147 engages with the first meshing tooth 134. The first meshing tooth 134 contacts the first drive tooth 147 at contact point B, generating a force F perpendicular to the tangent at contact point B. The contact point B at different positions is designated B1, B2, and B3 in the accompanying drawings. The force F at different positions is designated F1, F2, and F3 in the accompanying drawings. After the drive tooth 143 begins to engage with the first meshing tooth 134, the angle α between the direction of the force F and the first linear direction gradually decreases or remains constant. The striking pin 131 gradually moves to the switching position. The angle α between the direction of the force F and the first linear direction is essentially zero. As the firing pin 131 continues to move backward from the changed position, the angle α between the direction of the force F and the first straight line direction gradually increases. The angle α at different positions is indicated in the attached figures by a1 (not shown), a2, and a3, respectively.

[0045] The firing pin 131 continues to move backward, the energy storage device 150 continues to store energy, and the firing pin 131 reaches the stop position. At the stop position, the fastener driver 100 stops. When the user presses the trigger 1131, the drive member 142 continues to drive the firing pin 131 backward to the top dead center position. The air in the first cylinder 151 is essentially compressed to its limit, and the elastic potential energy stored in the energy storage device 150 has essentially reached its peak. The striking assembly 130 stops moving backward, and the firing pin 131 has essentially moved to its furthest possible position. Just as the firing pin 131 passes the top dead center position, the drive tooth 143 disengages from the meshing tooth 133. At this time, the drive member 142 rotates to the position where the notch 146 faces upward, and the firing pin 131 is not engaged with the drive member 142, allowing the firing pin 131 to move forward. Driven by the energy storage device 150, elastic potential energy is converted into kinetic potential energy. The compressed air causes the firing pin 131 to move forward, and the firing pin 131 outputs an impact force, knocking the fastener 10 out. The firing pin 131 then moves back to the bottom dead center position.

[0046] From a distance perspective, one striking cycle is defined as the striker 131 returning from the top dead center position to the top dead center position, or from the bottom dead center position to the bottom dead center position. From a user perspective, one striking cycle is defined as the striker 131 returning to the stop position. In this embodiment, one striking cycle is defined as the striker 131 returning to the stop position.

[0047] like Figure 12 As shown, the ratio of the travel distance L1 of the striker 131 from the stop position to the top dead center position to the travel distance L2 of the striker 131 from the changeover position to the top dead center position is less than or equal to 1. In some embodiments, the ratio of the travel distance L1 of the striker 131 from the stop position to the top dead center position to the travel distance L2 of the striker 131 from the changeover position to the top dead center position is greater than or equal to 0.4 and less than or equal to 0.9. In some embodiments, the ratio of the travel distance L1 of the striker 131 from the stop position to the top dead center position to the travel distance L2 of the striker 131 from the changeover position to the top dead center position is greater than or equal to 0.5 and less than or equal to 0.9. In some embodiments, the ratio of the travel distance L1 of the striker 131 from the stop position to the top dead center position to the travel distance L2 of the striker 131 from the changeover position to the top dead center position is greater than or equal to 0.6 and less than or equal to 0.8. In some embodiments, the ratio of the travel distance L1 of the striker 131 from the stop position to the top dead center position to the travel distance L2 of the striker 131 from the transition position to the top dead center position is equal to 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, or 0.85.

[0048] When the firing pin 131 is in the stopped position, the angle α between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 40 degrees. In some embodiments, the angle α between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 12 degrees. In some embodiments, the angle α between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 2 degrees and less than or equal to 10 degrees. In some embodiments, the angle α between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 3 degrees and less than or equal to 8 degrees. In some embodiments, the angle α between the direction of the force F and the direction of the first straight line 101 is equal to 39 degrees, 38 degrees, 37 degrees, 35 degrees, 30 degrees, 25 degrees, 20 degrees, 15 degrees, 13 degrees, 12.5 degrees, 12.4 degrees, or 12.3 degrees.

[0049] The ratio of the travel distance L1 of the firing pin 131 from the stop position to the top dead center position to the travel distance L2 of the firing pin 131 from the transition position to the top dead center position is greater than or equal to 0.5 and less than or equal to 1. When the firing pin 131 is in the stop position, the angle α between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 12 degrees. This ensures the stop position is close to the top dead center position, resulting in a low starting load on the motor 160 during fastener driver 100 startup, saving energy, increasing efficiency, and reducing motor heat generation. The stop position is also not too close to the top dead center position, ensuring high safety and preventing accidental ejection of the fastener 10 by the fastener driver 100. The stop position is adjusted by the travel distance of the firing pin 131, allowing for quantifiable determination of the appropriate stop position with high accuracy.

[0050] The travel distance of the firing pin 131 from the bottom dead center position to the top dead center position is greater than or equal to 70 mm and less than or equal to 86 mm. In some embodiments, the travel distance of the firing pin 131 from the bottom dead center position to the top dead center position is greater than or equal to 75 mm and less than or equal to 81 mm. In some embodiments, the travel distance of the firing pin 131 from the bottom dead center position to the top dead center position is greater than or equal to 77 mm and less than or equal to 79 mm. In some embodiments, the travel distance of the firing pin 131 from the bottom dead center position to the top dead center position is equal to 78 mm.

[0051] The travel distance L1 of the firing pin 131 from the stop position to the top dead center position is greater than or equal to 1.6 mm and less than or equal to 2.6 mm. In some embodiments, the travel distance L1 of the firing pin 131 from the stop position to the top dead center position is greater than or equal to 1.8 mm and less than or equal to 2.4 mm. The travel distance L2 of the firing pin 131 from the changeover position to the top dead center position is greater than or equal to 3.6 mm and less than or equal to 4.4 mm. In some embodiments, the travel distance L2 of the firing pin 131 from the changeover position to the top dead center position is greater than or equal to 3.8 mm and less than or equal to 4.2 mm. In some embodiments, the travel distance L2 of the firing pin 131 from the changeover position to the top dead center position is equal to 4 mm. The travel distance L1 of the firing pin from the stop position to the top dead center position is less than the travel distance L2 of the firing pin 131 from the changeover position to the top dead center position. The stop position is between the changeover position and the top dead center position, and the stop position is close to the top dead center position.

[0052] The outer contour 135 of the first meshing tooth 134 has a straight portion 1351 and an arcuate portion 1352. In the transition position, the first drive tooth 147 transitions from meshing with the straight portion 1351 to meshing with the arcuate portion 1352. The angle b between the straight portion 1351 and the first straight direction is greater than or equal to 87 degrees and less than or equal to 105 degrees. In some embodiments, the angle b between the straight portion 1351 and the first straight direction is greater than or equal to 89 degrees and less than or equal to 99 degrees. In some embodiments, the angle b between the straight portion 1351 and the first straight direction is greater than or equal to 90 degrees and less than or equal to 97 degrees. In some embodiments, the angle b between the straight portion 1351 and the first straight direction is approximately equal to 90 degrees. The straight portion 1351 is connected to the main body 132 of the firing pin 131 by an arcuate connecting line recessed toward the main body 132. Due to the presence of the arc-shaped connecting line and the straight section 1351, the first drive tooth 147 first contacts the arc-shaped connecting line, then contacts the straight section 1351. The angle α between the direction of the force F and the first straight direction gradually decreases and remains constant in the straight section 1351. In the straight section 1351, the angle α between the direction of the force F and the first straight direction is 0 degrees. In some embodiments, the straight section 1351 is directly connected to the main body 132 of the striker 131, and the first drive tooth 147 directly contacts the straight section 1351. The angle α between the direction of the force F and the first straight direction remains constant at 0 degrees until the striker 131 passes the transition position. The arc-shaped section 1352 connected to the straight section 1351 protrudes in a direction away from the main body 132 of the striker 131. When the striker 131 passes the transition position, the first drive tooth 147 moves along the arc-shaped section 1352, and the angle α between the direction of the force F and the first straight direction gradually increases. The arc-shaped section 1352 has a center A. The center A at different positions is designated A1, A2, and A3 in the accompanying drawings. The first drive tooth has a center point H. At the top dead center position, the center A, contact point B, center point H of the first drive tooth, and rotation point C can be connected by a straight line. The outer contour 135 of the first meshing tooth 134 has a straight portion 1351 and an arc-shaped portion 1352. In this way, the first drive tooth 147 can first apply a force to the first meshing tooth 134 through the straight portion 1351 to drive the striker 131 backward, with minimal force loss. The first drive tooth 147 then uses the arc-shaped portion 1352 to precisely stop the striker 131 at a stopping position close to the top dead center position, achieving high control accuracy.

[0053] As the striker 131 moves backward, the pressure exerted on the striker 131 by the compressed air in the first cylinder 151 gradually increases. This pressure acts on the drive gear 143, effectively applying torque to the drive component 142. This torque is the force F generated at the contact point B, perpendicular to the tangent at point B. The distance from the second straight line 102 to the direction of the force F is the lever arm FD of the force F. The lever arm FD is labeled FD1, FD2, FD3 (not shown), etc., in the accompanying drawings at different positions. In other words, when viewed from above, the perpendicular line drawn from the force F to the rotation point C is the lever arm FD. As the striker 131 moves from the switching position to the top dead center position, the distance from the force F to the rotation point C gradually decreases, the lever arm FD gradually shortens, and the load on the motor 160 gradually decreases.

[0054] The torque of motor 160 can be considered as the load of motor 160. When the transmission ratio of gear set 141 is fixed, the torque of drive member 142 is positively correlated with the torque of motor 160. From the switching position to the stop position, the torque of drive member 142 is greater than or equal to 2.5 N·m and less than or equal to 8.5 N·m. In some embodiments, from the switching position to the stop position, the torque of drive member 142 is greater than or equal to 3 N·m and less than or equal to 8 N·m. In some embodiments, from the switching position to the stop position, the torque of drive member 142 is greater than or equal to 4 N·m and less than or equal to 7 N·m. In the stop position, the torque of drive member 142 is small, and the torque required for motor 160 to restart is small, saving energy. Fastener driver 100 has a long operating time, high working efficiency, and low temperature rise of motor 160.

[0055] like Figure 13 As shown, during the movement of the firing pin from the bottom dead center position to the top dead center position, the force F gradually increases as the piston 122 moves backward in the first cylinder 151 and compresses air. In this embodiment, the force F increases linearly. The torque of the drive member 142 is the product of the force F and the lever arm FD. The torque of the motor 160 changes in the same direction as the torque of the drive member 142. After the firing pin 131 passes the transition position, although the force F continues to increase, the lever arm FD decreases rapidly. Therefore, the torque of the drive member 142 decreases, and the torque of the motor 160 decreases. The ratio of the travel distance L1 of the firing pin 131 from the stop position to the top dead center position to the travel distance L2 of the firing pin 131 from the transition position to the top dead center position is less than or equal to 1. The stop position of the firing pin 131 is close to the top dead center position, and the starting load of the motor 160 is low. When the striker 131 is in the stopped position, the angle α between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 40 degrees. The stopped position of the striker 131 is close to the top dead center, resulting in a low starting load on the motor. It should be noted that... Figure 13The stop position marked in the figure is not the only possible stop position. As long as the starting load of motor 160 is low at the stop position, the specific stop position is not limited here.

[0056] like Figure 6 , Figures 14 to 17 As shown, the fastener driver 100 includes a control device. The control device includes a controller 172. The controller 172 is configured to be connected to a motor 160 and a detection mechanism 170. The controller 172 is connected to both the motor 160 and the detection mechanism 170 to enable signals to be sent and received between the controller 172, the motor 160, and the detection mechanism 170. The detection mechanism 170 is configured to detect the position of a moving part 171. After the moving part 171 reaches and remains within a first preset position range, the detection mechanism 170 can continuously send detection signals until the moving part 171 is outside the first preset position range. The detection mechanism 170 sends detection signals to allow the controller to send control signals. In this embodiment, the detection mechanism 170 includes a Hall sensor. The moving part 171 is a magnetic element 1711, specifically a cylindrical magnet. In some embodiments, the detection mechanism 170 may also be a potentiometer or other mechanism capable of detecting the position of the moving part 171, and the moving part 171 may also be other parts that can be detected by the detection mechanism 170.

[0057] like Figure 18As shown, the striker 131 can move to the stop position. When the striker 131 is in the stop position, the moving part 171 also has a corresponding position. The position that the moving part 171 moves to when the striker 131 is in the stop position is also collectively referred to as the stop position. Before reaching the stop position, the moving part 171 will first reach a second preset position. That is to say, the second preset position is between the bottom dead center position and the stop position. When the moving part 171 reaches the second preset position, the controller 172 sends a control signal. Alternatively, the striker 131 moves backward from the bottom dead center. When the moving part 171 reaches the stop position after a first preset time, the controller 172 sends a control signal. After the moving part 171 reaches the first preset position range, the detection mechanism 170 can sense the moving part 171 and is capable of sending a detection signal to allow the controller 172 to send a control signal. When the moving part 171 reaches the second preset position or reaches the stop position after a first preset time, the controller 172 sends a control signal to control the motor. The first preset position range has a first boundary position and a second boundary position, with the first boundary position located on the side of the second boundary position closer to the bottom stop position. The first boundary position and the second boundary position define the first preset position range. The first boundary position can be considered as an extreme detection position of the detection mechanism 170. The second preset position may coincide with the first boundary position of the first preset position, or it may be within the first preset position range. The controller 172 sends a control signal a first preset time before the moving part 171 reaches the stopping position. The position of the moving part 171 at the first preset time before reaching the stopping position may coincide with the first boundary position of the first preset position range, or it may be within the first preset position range.

[0058] When the moving part 171 reaches the first preset position range, the detection mechanism 170 is capable of detecting the moving part 171 and sending a detection signal. With the position of the detection mechanism 170 unchanged, the farther the first boundary position is from the detection mechanism 170, the larger the first preset position range, and the stronger the detection capability of the detection mechanism 170, or the stronger the ability of the moving part 171 to be detected by the detection mechanism 170. When the moving part 171 reaches the second preset position, the controller 172 sends a control signal to control the motor 160 to rotate a preset number of times and then brake, or to control the motor 160 to brake after a second preset time.

[0059] The detection mechanism 170 is capable of detecting the moving part 171 after it reaches a first preset position range. The detection mechanism 170 can continuously detect the moving part 171 within the first preset position range. When the moving part 171 reaches the first preset position range, the detection mechanism 170 begins to detect the moving part 171 and begins to allow the controller 172 to issue a control signal. At the second preset position, the controller 172 issues a control signal to control the motor 160. Since the second preset position is before the stopping position, when the detection mechanism 170 allows the controller 172 to issue a signal, after the controller 172 issues the control signal, it can delay braking the motor 160 after certain preset conditions are met, and finally stop the striker 131 at the stopping position. This provides sufficient time for the controller 172 to brake the motor 160. The controller 172 can brake the motor 160 within a relatively long position range or time range before stopping. After the preset conditions are met, the controller 172 finally applies precise braking to the motor 160, and the stopping position of the motor 160 is accurate and controllable.

[0060] The moving part 171 has a center point E. The angle g is defined as the angle formed by the center point E of the moving part 171 in the stopped position and the first boundary position, with the rotation point C of the driving part 142 as the vertex. Figure 18 In this diagram, E1 and E2 represent the center point E at the first boundary position and the center point E at the stopping position, respectively. Angle g is greater than or equal to 10 degrees and less than or equal to 60 degrees. In some embodiments, angle g is greater than or equal to 15 degrees and less than or equal to 50 degrees. In some embodiments, angle g is greater than or equal to 20 degrees and less than or equal to 40 degrees. In some embodiments, angle g is greater than or equal to 30 degrees and less than or equal to 35 degrees.

[0061] When the moving part 171 reaches the stopping position after a first preset time, the controller 172 sends a control signal. The first preset time is calculated backwards from the time the moving part 171 reaches the stopping position; the moving part 171 is within the first preset position range, or has just reached the first boundary position. In some embodiments, the first preset time is greater than or equal to 20 ms and less than or equal to 30 ms. In some embodiments, the first preset time is greater than or equal to 22 ms and less than or equal to 28 ms. In some embodiments, the first preset time is greater than or equal to 24 ms and less than or equal to 26 ms. In some embodiments, the first preset time is greater than or equal to 10 ms and less than or equal to 50 ms. In some embodiments, the first preset time is greater than or equal to 15 ms and less than or equal to 40 ms.

[0062] During the use of the fastener driver 100, it will stop repeatedly. The first drive tooth 147 and the first meshing tooth 134 will wear after multiple stops. When the angle g is greater than or equal to 10 degrees and less than or equal to 60 degrees, or when the first preset time is greater than or equal to 20 ms and less than or equal to 30 ms, the detection mechanism 170 can allow the controller 172 to issue a control signal. In this way, the detection range of the detection mechanism 170 is larger. When the detection mechanism 170 is capable of detecting the moving part 171 and is capable of issuing a detection signal, the striker 131 is far from the stop position. Before the striker 131 stops at the stop position, in other words, before the motor 160 stops rotating, the detection mechanism 170 has sufficient time to issue a detection signal. The controller 172 also has sufficient time to brake the motor 160. The controller 172 can control the motor 160 in advance when the striking component 130 is far from the stop position, and the control time of the controller 172 on the motor 160 is longer. Thus, even if the first drive tooth 147 and the first meshing tooth 134 wear down, causing the stopping position to change from the initial stopping position, the controller 172 can dynamically adjust the stopping position to ensure it remains at an ideal position. Wear of the first drive tooth 147 and the first meshing tooth 134 would cause the stopping position to be closer to the top dead center, making the fastener driver 100 prone to double-hitting, posing a safety hazard and inconvenience. The detection mechanism 170 allows the controller 172 to issue control signals earlier, enabling the controller 172 to dynamically control the motor 160 in advance when the striking component 130 is far from the stopping position, ensuring the stopping position remains ideal and making the fastener driver 100 convenient and safe to use.

[0063] The first drive tooth 147 has a center point H. The angle i between the center point E of the moving member 171 and the center point H of the first drive tooth 147, with the rotation center point C of the drive member 142 as the vertex, is greater than or equal to 5 degrees and less than or equal to 30 degrees. In some embodiments, the angle i is greater than or equal to 7 degrees and less than or equal to 27 degrees. In some embodiments, the angle i is greater than or equal to 10 degrees and less than or equal to 25 degrees.

[0064] Angle i is greater than or equal to 5 degrees and less than or equal to 30 degrees. The moving part 171 is far from the first drive tooth 147, so that there is a sufficient distance between the first preset position and the stop position. The distance between the first preset position and the stop position allows the controller 172 to perform other controls on the motor 160 before controlling the braking of the motor 160, such as the number of rotations, rotation time, deceleration, soft braking, etc., so that the motor 160 stops at the ideal position.

[0065] In this embodiment, the Hall sensor can detect the magnetic field lines of the magnetic element 1711 at a first preset position. The surface magnetic field strength of the magnetic element 1711 is greater than or equal to 2800 Gs and less than or equal to 3600 Gs. In some embodiments, the surface magnetic field strength of the magnetic element 1711 is greater than or equal to 3000 Gs and less than or equal to 3400 Gs. In some embodiments, the surface magnetic field strength of the magnetic element 1711 is greater than or equal to 3100 Gs and less than or equal to 3300 Gs. The strong surface magnetic field strength of the magnetic element 1711 and the large coverage and long distance of the magnetic field lines allow the detection mechanism 170 to detect the moving part 171 earlier, and the controller 172 to have time to dynamically adjust the stopping position, ensuring that the stopping position remains at an ideal position.

[0066] The travel distance of the impact pin 131 from reaching the first preset position range to the stop position is greater than or equal to 4 mm and less than or equal to 10 mm. In some embodiments, the travel distance of the impact pin 131 from reaching the first preset position range to the stop position is greater than or equal to 5 mm and less than or equal to 9 mm. In some embodiments, the travel distance of the impact pin 131 from reaching the first preset position range to the stop position is greater than or equal to 6 mm and less than or equal to 8 mm. The longer the travel distance of the impact pin 131 from reaching the first preset position range to the stop position, the larger the detection range of the detection mechanism 170.

[0067] After the controller 172 sends a control signal, it controls the motor 160 to rotate a preset number of revolutions before braking. In some embodiments, the preset number of revolutions is greater than or equal to 1 revolution and less than or equal to 5 revolutions. In some embodiments, the preset number of revolutions is greater than or equal to 2 revolutions and less than or equal to 4 revolutions. In some embodiments, the preset number of revolutions is greater than or equal to 2 revolutions and less than or equal to 3 revolutions. The controller 172 can adjust the preset number of revolutions according to the actual situation so that after the motor 160 has rotated the preset number of revolutions, the controller 172 brakes the motor 160, and the motor 160 continues to rotate a certain number of revolutions during the braking process before stopping, achieving an ideal stopping position.

[0068] After the controller 172 issues a control signal, it applies the brakes after a second preset time. The second preset time is greater than or equal to 4 ms and less than or equal to 20 ms. In some embodiments, the second preset time is greater than or equal to 6 ms and less than or equal to 18 ms. In some embodiments, the second preset time is greater than or equal to 8 ms and less than or equal to 16 ms. In some embodiments, the second preset time is greater than or equal to 10 ms and less than or equal to 14 ms. The controller 172 can adjust the second preset time according to actual conditions so that after the motor 160 has rotated for the second preset time, the controller 172 applies the brakes to the motor 160, and the motor 160 continues to rotate for a certain period before stopping, achieving an ideal stopping position.

[0069] like Figure 17 , Figures 19 to 21 As shown, the drive unit 142 includes a moving part fixing layer 173, which is fixedly mounted on a first fixing layer 144 and rotates synchronously with the first fixing layer 144 and a second fixing layer 145. A moving part 171 is fixedly mounted on the moving part fixing layer 173 and rotates synchronously with it. The fastener driver 100 includes a guide assembly that guides the fastener 10 along a first straight line 101. The fastener communicates with at least a portion of the magazine 120 to allow the fastener 10 to move from the magazine 120 to the input port.

[0070] The fastener driver 100 includes a support frame 174. The support frame 174 connects the energy storage device 150 and the guide assembly 180. The support frame 174 is fixedly connected to the energy storage device 150, and the guide assembly 180 is fixedly connected to the support frame 174. The support frame 174 simultaneously fixes the energy storage device 150 and the guide assembly 180, such that the energy storage device 150 and the guide assembly 180 have high coaxiality. The guide assembly 180 includes a first guide 181 and a second guide 182. The second guide 182 includes an inlet 1821. The inlet 1821 communicates with at least a portion of the magazine 120. The support frame 174 includes a through hole 1741 through which the firing pin 131 passes to move from the energy storage device 150 to the guide assembly 180, and to fire the fastener 10 by the guidance of the guide assembly 180. The support frame 174 includes a first mounting portion 1742. The guide assembly 180 is mounted to the support frame 174 via a first mounting portion 1742. The first mounting portion 1742 is used to fix screws. The screws pass through the guide assembly 180 and are fixed to the first mounting portion 1742. There can be multiple first mounting portions 1742. At least one of the through holes 1741 and multiple first mounting portions 1742 are located on the first straight line 101. In this embodiment, there are three first mounting portions 1742, and the center of the through hole 1741 and two of the first mounting portions 1742 are located on the first straight line 101. In this way, the energy storage device 150, the striker 131 and the guide assembly 180 are simple to assemble, low in cost and high in manufacturing precision. When the striker 131 is on the energy storage device 150 and on the guide assembly 180, it always moves along the first straight line 101, resulting in more accurate guidance.

[0071] In this embodiment, the guide assembly 180 includes a second mounting portion 1811 for mounting the detection mechanism 170. The second mounting portion 1811 includes a protrusion formed on the first guide member 181. The detection mechanism 170 is fixedly mounted to the second mounting portion 1811 by screws. The support frame 174 includes a third mounting portion 1743 for mounting the gear set 141 and the drive member 142. The drive member 142 is rotatably fixed to the third mounting portion 1743 by bearings. The third mounting portion 1743 includes toothed protrusions formed on the support frame 174. The detection mechanism 170 is mounted to the guide assembly 180, the guide assembly 180 is fixedly connected to the support frame 174, the drive member 142 is mounted to the support frame 174, and the moving member 171 is fixedly mounted to the drive member 142. In this way, the positional relationship between the rotation axes of the detection mechanism 170 and the drive member 142 is fixed, which facilitates the detection mechanism 170 to accurately identify the position of the moving member 171 and reduces errors.

[0072] like Figures 22 to 24 As shown, in some embodiments, the detection mechanism 170 is not mounted on the guide assembly 180, but directly on the support frame 174. The support frame 174 includes a fourth mounting portion 1744 for mounting the detection mechanism 170. The fourth mounting portion 1744 includes a protrusion formed on the support frame 174. The detection mechanism 170 is fixedly mounted to the fourth mounting portion 1744 by screws. Both the detection mechanism 170 and the drive member 142 are mounted on the support frame 174, and the positional relationship between the rotation axes of the detection mechanism 170 and the drive member 142 is fixed, which facilitates the detection mechanism 170 to accurately identify the position of the moving member 171 and reduce errors. The energy storage device 150, the guide assembly 180, the detection mechanism 170, and the drive member 142 are all positioned by the support frame 174, which simplifies assembly, creates a compact structure, provides accurate positioning, and ensures high coaxiality between the energy storage device 150 and the guide assembly 180.

[0073] like Figure 25As shown, the distance between the upper stop position and the lower stop position is defined as the stroke L3 of the striking component 130. The fastener driver 100 can drive the fastener 10 to move within a preset length L4. The ratio of the stroke L3 of the striking component 130 to the preset length L4 is less than or equal to 1.5. In some embodiments, the ratio of the stroke L3 of the striking component 130 to the preset length L4 is less than or equal to 1.49, 1.48, 1.47, 1.46, 1.45, 1.44, 1.43, 1.42, 1.41, or 1.4. In some embodiments, the ratio of the stroke L3 of the striking component 130 to the preset length L4 is greater than or equal to 1.4 and less than or equal to 1.49. In some embodiments, the ratio of the stroke L3 of the striking component 130 to the preset length L4 is greater than or equal to 1.41 and less than or equal to 1.46. In some embodiments, the ratio of the stroke L3 of the striking component 130 to the preset length L4 is greater than or equal to 1.42 and less than or equal to 1.45. The ratio of the preset length L4 of the fastener 10 to the stroke L3 of the striking component 130 is small. The stroke L3 of the striking component 130 is short, but the fastener driver 100 can strike out a longer fastener 10. The fastener driver 100 is short in length.

[0074] The stroke L3 is less than or equal to 80 mm. In some embodiments, the stroke L3 is less than or equal to 85 mm, 84 mm, 83 mm, 82 mm, 81 mm, 79 mm, 78 mm, 77 mm, 76 mm, 75 mm, 74 mm, 73 mm, or 72 mm. In some embodiments, the stroke L3 is greater than or equal to 74 mm and less than or equal to 82 mm. In some embodiments, the stroke L3 is greater than or equal to 76 mm and less than or equal to 80 mm. A shorter stroke L3 results in a shorter length of the fastener driver 100.

[0075] The preset length L4 is greater than or equal to 50 mm. In some embodiments, the preset length L4 is greater than or equal to 51 mm, 52 mm, 53 mm, 54 mm, 55 mm, 56 mm, 57 mm, or 58 mm. In some embodiments, the preset length L4 is greater than 50 mm and less than or equal to 58 mm. In some embodiments, the preset length L4 is greater than or equal to 51 mm and less than or equal to 56 mm. A longer preset length L4 allows the fastener driver 100 to drive out a longer fastener 10.

[0076] like Figure 26As shown, the length L5 of the striking pin 131 is less than or equal to 165 mm. In some embodiments, the length L5 of the striking pin 131 is less than or equal to 164 mm, 163 mm, 162 mm, 161 mm, 160 mm, 159 mm, 158 mm, 157 mm, 156 mm, or 155 mm. In some embodiments, the length L5 of the striking pin 131 is greater than or equal to 155 mm and less than or equal to 165 mm. In some embodiments, the length L5 of the striking pin 131 is greater than or equal to 156 mm and less than or equal to 162 mm. The shorter length L5 of the striking pin 131 results in a shorter length of the fastener driver 100.

[0077] The firing pin 131 includes a toothed portion 137. The toothed portion 137 is the main body portion 132. The portion of the main body portion 132 that contacts the drive member 142 from the first engaging tooth 134 to the seventh engaging tooth 136 is the toothed portion 137. The ratio of the length L6 of the toothed portion 137 to a preset length L4 is less than or equal to 1.21. In some embodiments, the ratio of the length L6 of the toothed portion 137 to the preset length L4 is less than or equal to 1.23, 1.22, 1.2, or 1.19. In some embodiments, the ratio of the length L6 of the toothed portion 137 to the preset length L4 is greater than or equal to 1.19 and less than or equal to 1.23. In some embodiments, the ratio of the length L6 of the toothed portion 137 to the preset length L4 is greater than or equal to 1.2 and less than or equal to 1.22. The shorter length L6 of the toothed portion 137 results in a shorter length L5 of the firing pin 131.

[0078] like Figure 4 As shown, the length L7 of the guide component 180 is less than or equal to 108 mm. In some embodiments, the length L7 of the guide component 180 is less than or equal to 113 mm, 112 mm, 111 mm, 110 mm, 109 mm, 107 mm, 106 mm, 105 mm, 104 mm, or 103 mm. In some embodiments, the length L7 of the guide component 180 is greater than or equal to 103 mm and less than or equal to 113 mm. In some embodiments, the length L7 of the guide component 180 is greater than or equal to 104 mm and less than or equal to 110 mm. The shorter guide component 180 results in a shorter fastener driver 100.

[0079] like Figure 25 , Figure 27 and Figure 28As shown, the first cylinder 151 includes a first inner wall 152. When the piston 122 moves within the first cylinder 151, the first inner wall 152 contacts the piston 122. The first inner wall 152 has a circular first cross-section 1521. The ratio of the stroke L3 of the striking pin 131 to the diameter d1 of the first cross-section 1521 is greater than or equal to 1.7 and less than or equal to 2.8. In some embodiments, the ratio of the stroke L3 of the striking pin 131 to the diameter d1 of the first cross-section 1521 is greater than or equal to 1.9 and less than or equal to 2.7. In some embodiments, the ratio of the stroke L3 of the striking pin 131 to the diameter d1 of the first cross-section 1521 is greater than or equal to 2.1 and less than or equal to 2.6. In some embodiments, the ratio of the stroke L3 of the firing pin 131 to the diameter d1 of the first cross-section 1521 is less than or equal to 2.5, 2.45, 2.4, 2.35, 2.3, 2.25, 2.2, 2.1, 2, 1.9, or 1.8. The ratio of the stroke L3 of the firing pin 131 to the diameter d1 of the first cross-section 1521 is relatively small, and the diameter d1 is relatively long compared to the stroke L3.

[0080] The diameter of the drive member 142 is defined as the diameter of the circle formed by connecting the centers of the plurality of drive teeth 143. The ratio of the diameter d1 of the first cross-section 1521 to the diameter of the drive member 142 is greater than or equal to 0.9 and less than or equal to 1. In some embodiments, the ratio of the diameter d1 of the first cross-section 1521 to the diameter of the drive member 142 is greater than or equal to 1 and less than or equal to 1.1. The ratio of the diameter of the drive member 142 to the stroke L3 of the striker 131 is greater than or equal to 0.37 and less than or equal to 0.41. In some embodiments, the ratio of the diameter of the drive member 142 to the stroke L3 of the striker 131 is greater than or equal to 0.38 and less than or equal to 0.4.

[0081] The energy storage device includes a second cylinder 153. At least a portion of the first cylinder 151 is housed within the second cylinder 153. The second cylinder 153 includes a second inner wall 154. The second inner wall 154 has a circular second cross-section 1541. The ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.6 and less than or equal to 0.7. In some embodiments, the ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.6 and less than or equal to 0.65. In some embodiments, the ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.5 and less than or equal to 0.7. In some embodiments, the ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.53 and less than or equal to 0.63.

[0082] The diameter d1 of the first cross-section 1521 is greater than or equal to 28 mm and less than or equal to 36 mm. In some embodiments, the diameter d1 of the first cross-section 1521 is greater than or equal to 29 mm and less than or equal to 35 mm. In some embodiments, the diameter d1 of the first cross-section 1521 is greater than or equal to 30 mm and less than or equal to 34 mm. The product of the first cross-section 1521 of the first cylinder 151 and the stroke L3 is the gas displacement when the piston 122 moves from the bottom dead center position to the top dead center position within the first cylinder 151. A larger diameter d1 of the first cross-section 1521 results in a larger gas displacement.

[0083] The ratio of impact energy to gas displacement output by the fastener actuator 100 is greater than or equal to 0.3 J / cm³. 3 And less than or equal to 0.7 J / cm 3 In some embodiments, the ratio of the impact energy output by the fastener driver 100 to the gas displacement is greater than or equal to 0.35 J / cm³. 3 And less than or equal to 0.65 J / cm 3 In some embodiments, the ratio of the impact energy output by the fastener driver 100 to the gas displacement is greater than or equal to 0.4 J / cm³. 3 And less than or equal to 0.6 J / cm 3 In some embodiments, the ratio of the impact energy to the gas displacement output by the fastener driver 100 is greater than or equal to 0.45 J / cm³. 3 And less than or equal to 0.55 J / cm 3 Each unit of gas displacement corresponds to a relatively large impact energy, and the fastener driver 100 has high working efficiency.

[0084] Gas displacement greater than or equal to 54 cm 3 And less than or equal to 71cm 3 In some embodiments, the gas displacement is greater than or equal to 58 cm³. 3 And less than or equal to 68cm 3 In some embodiments, the gas displacement is greater than or equal to 60 cm³. 3 And less than or equal to 66cm 3 .

[0085] The diameter d2 of the second cross-section 1541 is greater than or equal to 47 mm and less than or equal to 57 mm. In some embodiments, the diameter d2 of the second cross-section 1541 is greater than or equal to 50 mm and less than or equal to 54 mm. In some embodiments, the diameter d2 of the second cross-section 1541 is greater than or equal to 51 mm and less than or equal to 53 mm. In some embodiments, the diameter d2 of the second cross-section 1541 is greater than or equal to 45 mm and less than or equal to 60 mm.

[0086] The second cylinder 153 has a volume. The volume is greater than or equal to 152 cm³. 3 And less than or equal to 186 cm 3 In some embodiments, the volume is greater than or equal to 157 cm³. 3 And less than or equal to 181cm 3 In some embodiments, the volume is greater than or equal to 160 cm³. 3 And less than or equal to 178cm 3 In some embodiments, the volume is greater than or equal to 165 cm³. 3 And less than or equal to 173cm 3 .

[0087] The ratio of volume to gas displacement is greater than or equal to 1.5 and less than or equal to 1.83. In some embodiments, the ratio of volume to gas displacement is greater than or equal to 1.6 and less than or equal to 1.73. In some embodiments, the ratio of volume to gas displacement is greater than or equal to 1.65 and less than or equal to 1.68.

[0088] like Figure 2 As shown, the length L8 of the fastener driver 100 in the front-to-back direction is less than or equal to 295 mm. In some embodiments, the length L8 of the fastener driver 100 in the front-to-back direction is less than or equal to 294 mm, 293 mm, 292 mm, 291 mm, 290 mm, 289 mm, 288 mm, 287 mm, or 286 mm. The fastener driver 100 has a shorter length, smaller size, lighter weight, and is convenient and labor-saving to use.

[0089] Without the battery pack 115 installed, the fastener driver 100 weighs less than or equal to 2.3 kg. In some embodiments, the fastener driver 100 weighs less than or equal to 2.29 kg, 2.28 kg, 2.27 kg, 2.26 kg, 2.25 kg, 2.24 kg, 2.23 kg, or 2.22 kg. With the battery pack 115 installed, the fastener driver 100 weighs less than or equal to 2.9 kg. In some embodiments, the fastener driver 100 with the battery pack 115 installed weighs less than or equal to 2.91 kg, 2.89 kg, 2.88 kg, 2.87 kg, or 2.86 kg. The fastener driver 100 is lightweight, making it convenient and comfortable for users to use.

[0090] When the battery pack 115 is not installed, the ratio of the weight of the fastener driver 100 to its length L8 in the front-to-back direction is less than or equal to 0.078 kg / cm. In some embodiments, the ratio of the weight of the fastener driver 100 to its length L8 in the front-to-back direction is less than or equal to 0.077 kg / cm, 0.076 kg / cm, 0.075 kg / cm, or 0.074 kg / cm. The fastener driver 100 has high output power, short length, small size, and is convenient to use.

[0091] When the battery pack 115 is not installed, the ratio of the output power of the fastener driver 100 to its length L8 in the front-to-back direction is greater than or equal to 11.3 W / cm. In some embodiments, the ratio of the output power of the fastener driver 100 to its length L8 in the front-to-back direction is greater than or equal to 11.6 W / cm, 11.5 W / cm, 11.4 W / cm, 11.2 W / cm, or 11.1 W / cm. The ratio of the output power of the fastener driver 100 to its weight is greater than or equal to 150 W / kg. In some embodiments, the ratio of the output power of the fastener driver 100 to its weight is greater than or equal to 160 W / kg, 157 W / kg, 155 W / kg, 152 W / kg, 147 W / kg, 145 W / kg, 142 W / kg, or 140 W / kg. The fastener driver 100 has high output power and light weight, making it convenient for users to hold the fastener driver 100 for extended periods of time.

[0092] like Figures 29 to 34 As shown, the fastener driver 100 includes an anti-dry-fire assembly 183. The anti-dry-fire assembly 183 prevents the firing pin 131 from firing without engaging when the fasteners 10 are depleted, thus preventing a potential hazard. The fastener driver 100 includes a lifting member 124. The lifting member 124 uses a spring force to tightly arrange a row of fasteners 10 vertically within the magazine 120. The spring force is generated by an elastic element, such as a spring, coil spring, etc. The lifting member 124 is configured to move the fasteners 10 so that they pass through the input port. After a fastener 10 is fired, the fastener 10 is subjected to the force of the lifting member 124 and is lifted upwards by the lifting member 124. The top fastener 10 in the row of fasteners 10 passes through the input port to await being fired by the firing pin 131. The anti-dry-fire assembly 183 achieves its anti-dry-fire function by changing the position of the lifting member 124.

[0093] The magazine 120 is positioned immediately adjacent to the main housing 111. The anti-aircraft fire assembly 183 is located on the upper, outward-facing side of the magazine 120; therefore, interference from external objects can easily cause the anti-aircraft fire assembly 183 to malfunction. The anti-aircraft fire assembly 183 includes an anti-aircraft fire assembly housing 1831. At least a portion of the anti-aircraft fire assembly housing 1831 is located on the outer side of the anti-aircraft fire assembly 183 to prevent interference from external objects. In this embodiment, the anti-aircraft fire assembly housing 1831 substantially seals around the anti-aircraft fire assembly 183, effectively preventing interference from external objects or dust ingress, and extending the service life of the fastener driver 100.

[0094] The fastener driver 100 includes a depth adjustment assembly 184. The depth adjustment assembly 184 includes a stop 1841, a push rod 1842, and a lever 1843. A trigger rod 121 is connected to the push rod 1842. The trigger rod 121 can be mounted to the push rod 1842 by means of a snap ring, a protrusion and recess, or a magnetic element, facilitating quick replacement and installation of the trigger rod 121 in case of damage. When the trigger rod 121 abuts against the workpiece and moves, the push rod 1842 moves with the trigger rod 121. The push rod 1842 is configured to abut against the stop 1841. The lever 1843 is operated by the user to adjust the position of the push rod 1842 abutting against the stop 1841 to adjust the nail driving depth. The stop 1841 includes a stepped structure for the push rod 1842 to abut against. The push rod 1842 is rotatably connected to the stop 1841. When push rod 1842 moves forward and backward along with trigger rod 121, push rod 1842 abuts against stop member 1841 and drives stop member 1841 to move forward and backward. A magnet is installed on stop member 1841. A safety Hall sensor 185 is installed inside anti-dry-firing assembly 183. When safety Hall sensor 185 detects the magnet, the safety switch is opened, allowing the user to operate fastener driver 100 to strike fastener 10.

[0095] The anti-aircraft gun assembly 183 includes a stop block 1832. The stop block 1832 is rotatable about a third straight line 103. The lifting member 124 includes a pusher portion 1241. The pusher portion 1241 is a protrusion formed on the lifting member 124 and protruding towards the stop block 1832. When the fastener 10 is depleted, the pusher portion 1241 moves with the lifting member 124 to the upper side of the magazine 120 and pushes the stop block 1832 to rotate about the third straight line 103. The stop block 1832 includes a first stop portion 1833. The stop member 1841 includes a second stop portion 1844. When the lifting member 124 pushes the stop block 1832 to rotate, the first stop portion 1833 abuts against the second stop portion 1844, and the stop block 1832 prevents the stop member 1841 from moving backward. The stop element 1841 cannot move backward, nor can the push rod 1842 and the trigger rod 121 move backward, and the safety switch cannot be opened. The fastener driver 100 cannot operate when the fastener 10 is worn out, and the firing pin 131 cannot be fired when the fastener 10 is worn out.

[0096] like Figure 3 and Figure 33 As shown, the fastener driver 100 includes a light-emitting mechanism 190. Multiple light-emitting mechanisms 190 may be present. In some embodiments, an anti-aircraft gun fire assembly 183 also includes an anti-aircraft gun fire Hall sensor 186. When the anti-aircraft gun fire Hall sensor 186 detects a magnet on the stop member 1841, while the safety Hall sensor 185 does not detect a magnet, the light-emitting mechanism 190 changes the color or frequency of the emitted light to provide a prompt to the user, making it convenient and safe to use.

[0097] like Figure 35 As shown, at least one light-emitting mechanism 190 is mounted directly above the guide assembly 180. The at least one light-emitting mechanism 190 located directly above the guide assembly 180 is mounted on the main housing 111. The main housing 111 includes a protective structure 191. The light-emitting mechanism 190 is mounted on the protective structure 191. In this embodiment, the protective structure 191 is formed on the main housing 111. The protective structure 191 has upwardly projecting, horn-shaped protrusions to protect the light-emitting mechanism 190 from damage due to impact when the fastener driver 100 is dropped. The horn-shaped protrusions of the protective structure 191 appear as V-shaped grooves when viewed from the front. The light emitted by the light-emitting mechanism 190, reflected by the V-shaped grooves, can project V-shaped, arrow-shaped, or triangular light spots onto the workpiece to indicate the nailing position, facilitating user operation. In some embodiments, the protective structure 191 can also allow the light-emitting mechanism 190 to project any projection shape, such as a line or circle, onto the workpiece to indicate the nailing position.

[0098] In this embodiment, the fastener driver 100 is a pre-inflated fastener driver, requiring pre-inflation in the energy storage device 150 before use. The air pressure in the energy storage device 150 is higher than atmospheric pressure, thus enhancing the impact force of the fastener driver 100. Fastener drivers 100 purchased by users are generally pre-inflated by the manufacturer for user use. During use, the energy storage device 150 will gradually leak air, therefore requiring re-inflation.

[0099] like Figures 36 to 38 As shown, the energy storage device 150 includes a vent 155. The energy storage device 150 is charged and depressurized through the vent 155. The vent 155 is located at the rear of the second cylinder 153. The vent 155 includes a hole communicating with the interior of the energy storage device 150. The controller 172 controls the motor 160 to brake and controls the striker 131 to stop at the stop position. The stop position is between the top dead center position and the bottom dead center position. In the stop position, the striking component 130 is still engaged with the drive member 142. When the striking component 130 reaches the top dead center position, or when the striking component 130 passes the top dead center position backward, the striking component 130 disengages from the drive member 142. The striking component 130 and the drive member 142 do not have a force interaction relationship, and the movement of the striking component 130 is not affected by the drive member 142.

[0100] The fastener actuator 100 has an operating state and a maintenance state. In the operating state, the vent 155 is not connected to the atmosphere. During the use of the fastener actuator 100, due to prolonged vibration, unavoidable manufacturing tolerances, and storage environment factors, a small amount of gas may escape from the energy storage device 150 to the atmosphere through the vent 155, causing a decrease in the striking force of the fastener actuator 100. When the fastener actuator 100 is not used for nailing, the striking component 130 remains in the stopped position, and the striking component 130 and the drive member 142 are engaged. The transmission mechanism 140 includes a clutch component 149. When the striking component 130 and the drive member 142 are engaged, the clutch component 149 restricts the forward movement of the striking component 130. The clutch component 149 includes a one-way clutch. When the fastener actuator 100 is viewed from above, the drive member 142 rotates counterclockwise to drive the striking component 130 to move backward. The one-way clutch prevents the drive member 142 from rotating clockwise to prevent the striking assembly 130 from moving forward. In the stopped position, the force of compressed gas applied to the striking assembly 130 to cause the striking assembly 130 to move forward is balanced by the force applied to the striking assembly 130 by the clutch assembly 149 to cause the striking assembly 130 to move backward.

[0101] In maintenance mode, the vent 155 can communicate with the atmosphere in response to user operation to charge and depress the energy storage device 150. The user or maintenance personnel can recharge the fastener actuator 100. Before charging, the energy storage device 150 is depressurized. A portion of the gas in the energy storage device 150 is discharged into the atmosphere through the vent 155. The gas pressure in the energy storage device 150 decreases from above atmospheric pressure to approximately equal to atmospheric pressure. The force of the compressed gas acting on the striking assembly 130 decreases. The compressed gas gradually converts to atmospheric gas, and the atmospheric gas in the energy storage device 150 no longer exerts a force on the striking assembly 130. As the force exerted on the striking assembly 130 by the gas, causing it to tend to move forward, gradually decreases to zero, the position of the striking assembly 130 moves from the stop position to the top dead center. Before the energy storage device 150 is charged, the striking assembly 130 moves backward to and remains in a ready position, passing the stop position and approaching the top dead center. Alternatively, the striking component 130 may be moved backward to and remain in an inflation position that has reached or passed the top dead center. Deflating the energy storage device 150 before inflating it reduces the air pressure within the energy storage device 150, making it possible to safely inflate the energy storage device 150.

[0102] If the energy storage device 150 is inflated while the striking component 130 is engaged with the drive component 142, even if the energy storage device 150 is fully inflated, the striking component 130 will not move forward due to the stop of the clutch component 149. The user can continue to inflate the energy storage device 150, but excessive air pressure in the energy storage device 150 could easily cause a hazard during nail driving. By deflating the energy storage device 150 and then re-inflating it, the striking component 130 can directly reach or exceed the top dead center position after the energy storage device 150 has deflated, and disengage from the drive component 142. This allows the user or maintenance personnel to inflate the energy storage device 150 without over-inflating or causing a hazard when the firing pin 131 is ejected.

[0103] In some embodiments, when the energy storage device 150 is deflated through the vent 155, the striking assembly 130 moves backward to and remains in the inflation position. The striking assembly 130 directly reaches or surpasses the top dead center position after the energy storage device 150 is deflated, which is convenient and saves energy. In some embodiments, after the energy storage device 150 is deflated, the striking assembly 130 moves to the ready position. The transmission mechanism 140 drives the striking assembly 130 from the ready position to and remains in the inflation position. After the energy storage device 150 is deflated, the user presses the trigger to cause the fastener driver 100 to fire. The user can press the trigger once or multiple times. The motor 160 rotates, driving the drive member 142 to rotate. Since the air pressure inside the energy storage device 150 is atmospheric pressure, there is no potential reaction force behind the striking assembly 130, and the drive member 142 can push the striking assembly from the ready position to the inflation position. The striking assembly 130 disengages from the drive member 142, and the energy storage device 150 can be safely inflated.

[0104] During the inflation of the energy storage device 150, as the air pressure inside the energy storage device 150 gradually increases to exceed atmospheric pressure, the striking component 130 moves forward towards the lower dead center position. As the energy storage device 150 continues to inflate, the striking component 130 moves forward to the lower dead center position. When the energy storage device 150 is fully inflated, the striking component 130 remains at the lower dead center position. The striking component 130 moves towards the lower dead center during the inflation process of the energy storage device 150; the movement is slow and the distance is controllable, ensuring a safe and reliable inflation process. When the user presses the trigger again, the firing pin 131 retracts backward instead of being directly ejected, minimizing the risk of danger and ensuring safe use.

[0105] Motor 160 brakes to stop the rearward movement of striking assembly 130. When motor 160 brakes, it is configured to rotate a first number of brake turns from the start to the end of braking before the energy storage device 150 is charged, i.e., in a maintenance state. After the energy storage device 150 is charged, i.e., in an operating state, motor 160 rotates a second number of brake turns from the start to the end of braking. The difference between the first and second number of brake turns is greater than or equal to 5 turns and less than or equal to 15 turns. In some embodiments, the difference between the first and second number of brake turns is greater than or equal to 6 turns and less than or equal to 12 turns. In some embodiments, the difference between the first and second number of brake turns is greater than or equal to 7 turns and less than or equal to 11 turns. In some embodiments, the difference between the first and second number of brake turns is approximately 9 turns. In some embodiments, the first number of brake turns is greater than or equal to 11 turns and less than or equal to 13 turns. In some embodiments, the first number of brake turns is approximately 12 turns. In some embodiments, the second number of brake turns is greater than or equal to 1 turn and less than or equal to 5 turns. In some embodiments, the second braking rotation number is greater than or equal to 2 rotations and less than or equal to 4 rotations. In some embodiments, the second braking rotation number is approximately 3 rotations.

[0106] The difference between the first and second braking rotations is controlled within a certain range, ensuring that the drive member 142 is properly positioned when the motor 160 completes braking. In maintenance mode, the number of rotations the motor 160 drives the drive member 142 to do is such that the drive member 142 neither engages with the striking component 130 due to too few rotations nor due to too many rotations. The striking component 130 can then move towards its lower limit during inflation without obstruction from the drive member 142.

[0107] In some embodiments, the fastener driver 100 includes a detection component for detecting the position of the striking component 130 relative to the inflation position. This allows the controller 172 to control the inflation level of the energy storage device 150. The fastener driver 100 also includes a display device for displaying the position of the striking component 130. This allows the user to accurately know the inflation level of the energy storage device 150.

[0108] like Figure 38 As shown, the charging process of the fastener driver 100 is as follows: In S1, the energy storage device 150 deflates. The striking component 130 moves backward from the stop position. In S2, if the striking component 130 moves to the charging position, the process proceeds to S3, and the energy storage device 150 charges. In S4, the striking component 130 moves to the bottom dead center, and the charging of the energy storage device 150 is complete. After the energy storage device 150 deflates in S1, in S5, if the striking component 130 moves to the ready position, the process proceeds to S6, the user presses the trigger, and the transmission mechanism 140 drives the striking component 130 to move to the charging position. Then, the process proceeds to S3, and the energy storage device 150 charges. Finally, in S4, the striking component 130 moves to the bottom dead center, and the charging of the energy storage device 150 is complete.

[0109] like Figure 25 and Figures 39 to 41 As shown, the fastener actuator 100 requires the use of an inflation adapter 200 for inflation. The inflation adapter 200 is used to inflate the device to be inflated, such as the fastener actuator 100. After the energy storage device 150 leaks, the performance of the fastener actuator 100 may decrease. By inflating the fastener actuator 100 using the inflation adapter 200, the performance of the fastener actuator 100 can be restored. The device to be inflated includes a gas storage space 201. The gas storage space 201 of the fastener actuator 100 is a space formed by the first cylinder 151, the second cylinder 153, and the piston 122 when they are at the bottom dead center position, capable of storing gas. The inflation adapter 200 includes a first connection end 210 and a second connection end 220. The first connection end 210 is used to connect a gas source, such as pressurized or unpressurized air, nitrogen, helium, etc. The first connection end 210 has an air inlet 211. The gas source enters the inflation adapter 200 through the air inlet 211. The second connection end 220 is used to connect to the venting section 155. When the second connection end 220 is connected to the venting section 155, the inflation adapter 200 is connected to the fastener driver 100.

[0110] The inflation adapter 200 includes an air outlet 221. In this embodiment, the air outlet 221 is located on the second connection end 220. The air outlet 221 communicates with the ventilation section 155 so that gas from the gas source flows into the inflation adapter 200 from the air inlet 211, flows through the inflation adapter 200, and then flows out from the air outlet 221 to the ventilation section 155. The ventilation section 155 communicates with the gas storage space 201, and the gas is ultimately stored in the gas storage space 201. There is at least one airflow path for gas flow between the air inlet 211 and the gas storage space 201. The airflow path from the air inlet 211 to the gas storage space 201 is defined as the inflation channel 230.

[0111] The second connecting end 220 can move toward the vent 155 to its limit position. During this movement, the distance between the second connecting end 220 and the vent 155 gradually decreases. The second connecting end 220 includes an engaging portion 222. The engaging portion 222 engages with the vent 155 to connect the inflation adapter 200 to the fastener driver 100. When the second connecting end 220 first engages with the vent 155, a connection is established. When the second connecting end 220 reaches its limit position, a tight connection is established. The engaging portion 222 allows the second connecting end 220 to remain at least in its limit position. Thus, when the second connecting end 220 reaches its limit position, the engaging portion 222 holds the second connecting end 220 in that position, maintaining a continuous and tight connection between the second connecting end 220 and the vent 155.

[0112] The engagement portion 222 is threaded. The vent portion 155 is also threaded. The engagement portion 222 and the vent portion 155 are engaged by the threads, and the second connecting end 220 is held in the limit position relative to the vent portion 155 by the thread engagement. The connection between the air adapter 200 and the fastener driver 100 is tight and reliable. In some embodiments, the vent portion 155 and the engagement portion 222 may also engage by grooves and protrusions, magnetic elements, or other means. In some embodiments, the air adapter 200 is provided with a knurled structure, which allows the user to easily and comfortably tighten the air adapter 200 to the fastener driver 100 by hand.

[0113] like Figure 42 As shown, a valve 156 is provided at the vent 155. When the valve 156 is open, the vent 155 allows gas to enter the gas storage space 201. When the valve 156 is closed, the vent 155 does not allow gas to enter the gas storage space 201. Figure 41As shown, the inflation adapter 200 includes a drive assembly 240. The drive assembly 240 is used to open the valve 156 of the vent 155. The drive assembly 240 has at least a first position and a second position. In the first position, the drive assembly 240 opens the valve 156. In the second position, the drive assembly 240 does not open the valve 156. That is, in the first position, the inflation passage 230 is open to allow airflow. In the second position, the inflation passage 230 is closed to prevent airflow.

[0114] When the second connection end 220 is in its extreme position, the drive assembly 240 can be at least in the second position. When the second connection end 220 is in its extreme position, the drive assembly 240 can be at least in the second position where the valve 156 is not open and the inflation passage 230 is closed. When the second connection end 220 moves toward the vent 155, including after the second connection end 220 moves toward the vent 155 to its extreme position, the drive assembly 240 does not immediately open the valve 156 or the inflation passage 230. The drive assembly 240 does not open the valve 156 as the second connection end 220 reaches its extreme position. Before inflation begins, the gas storage space 201 is not connected to the atmosphere. The gas in the gas storage space 201 will not escape into the atmosphere, thus preventing a decrease in the gas pressure within the energy storage device 150 and consequently reducing inflation efficiency and quality.

[0115] After the second connection end 220 reaches its limit position, the drive assembly 240 can move to at least the first position. After the second connection end 220 reaches its limit position, the drive assembly 240 can move to at least the first position where the valve 156 is open and the inflation channel 230 is open. The drive assembly 240 can move to the first position to open the valve 156 after the second connection end 220 is tightly connected to the vent 155. The inflation adapter 200 and the air storage space 201 are connected only after the second connection end 220 is tightly connected to the vent 155. This prevents gas in the air storage space 201 from leaking into the atmosphere, improving inflation efficiency and quality, and making it convenient and reliable to use.

[0116] like Figures 39 to 44As shown, the inflatable adapter 200 includes an operating section 250. The operating section 250 is operated by a user to drive the drive assembly 240 to move. The operating section 250 is configured to move along a fourth direction 104 under user operation. The drive assembly 240 is configured to be driven by the operating section 250 to move along the fourth direction 104. The movement direction of the drive assembly 240 is the same as that of the operating section 250. When the user operates the operating section 250 to move along the fourth direction 104, the operating section 250 drives the drive assembly 240 to move along the fourth direction 104, resulting in a simple structure and convenient and comfortable use. In some embodiments, the movement directions of the operating section 250 and the drive assembly 240 are different; the operating section 250 can also rotate to drive the drive assembly 240 to move, and the drive assembly 240 can also be driven by the operating section 250 to rotate. The operating section 250 includes a handle 251. The handle 251 includes a near-spherical portion and a planar portion. The user grips the near-spherical portion with their fingers and places their palm on the flat portion, pressing the operating part 250 along the fourth direction 104 for comfortable use. In some embodiments, the handle 251 may also be other shapes, such as plate-shaped, column-shaped, etc.

[0117] The inflatable adapter 200 includes a housing 260 and a limiting portion 270. The limiting portion 270 is disposed on the housing 260. A second connecting end 220 is located at one end of the housing 260, and the limiting portion 270 is located at the end of the housing 260 away from the second connecting end 220. An operating portion 250 is disposed at the end away from the second connecting end 220, and the limiting portion 270 is located between the operating portion 250 and the second connecting end 220. A first connecting end 210 is disposed on the operating portion 250. The limiting portion 270 is used to restrict the movement of the operating portion 250. When the operating portion 250 abuts against the limiting portion 270, the limiting portion 270 prevents the operating portion 250 from continuing to move in the fourth direction 104. In some embodiments, the inflatable adapter 200 includes a retaining portion. After the operating portion 250 has moved a certain distance, the retaining portion holds the operating portion 250 in a position and prevents the operating portion 250 from continuing to move. The retaining portion may include threads, grooves and protrusions, magnetic elements, etc.

[0118] The drive assembly 240 includes a first drive member 241 and a second drive member 242. The operating unit 250 drives the first drive member 241. The first drive member 241 drives the second drive member 242. The first drive member 241 is located between the operating unit 250 and the second drive member 242. One end of the first drive member 241 abuts against and is interference-fitted with the operating unit 250, and the other end of the first drive member 241 abuts against the second drive member 242. The first drive member 241 extends substantially along the fourth direction 104 and is substantially cylindrical. The first drive member 241 includes a through hole 243 communicating with an air inlet 211. The through hole 243 extends along the fourth direction 104 and forms a portion of an inflation channel 230. A connecting hole 244 is formed at the end of the first drive member 241 near the second drive member 242, allowing airflow passing through the through hole 243 to exit from the first drive member 241.

[0119] The inflatable adapter 200 includes a first inflation chamber 281 and a second inflation chamber 282. The first inflation chamber 281 accommodates a portion of a first driving member 241 and a first elastic member 283. The second inflation chamber 282 accommodates a portion of a second driving member 242 and a second elastic member 284. The first elastic member 283 is sleeved on the first driving member 241. The second elastic member 284 is sleeved on the second driving member 242. The first driving member 241 includes a first pushing portion 245, which is a circumferential protrusion formed on the first driving member 241. One end of the first pushing portion 245 abuts against a limiting member, and the other end abuts against the first elastic member 283. The second elastic member 284 includes a second pushing portion 246, which is a circumferential protrusion formed on the second driving member 242. One end of the second pushing portion 246 abuts against the first driving member 241, and the other end abuts against the second elastic member 284. When the user presses the operating part 250 to drive the drive assembly 240, the first pushing part 245 and the second pushing part 246 respectively abut against the first elastic element 283 and the second elastic element 284, biasing the first elastic element 283 and the second elastic element 284 in the pressing direction. The first elastic element 283 and the second elastic element 284 deform and accumulate elastic potential energy. When the user releases the operating part 250, the first elastic element 283 and the second elastic element 284 respectively return to their shape in the opposite direction of the pressing direction and abut against the first pushing part 245 and the second pushing part 246, driving the drive assembly 240 to move in the opposite direction of the pressing direction, and the drive assembly 240 resets. The second drive element 242 and the first drive element 241 are two separate parts, which is convenient to manufacture and saves costs. The second drive element 242 and the first drive element 241 can be driven by the first elastic element 283 and the second elastic element 284 respectively, and the movement of the drive assembly 240 is stable and reliable. The drive assembly 240 can be reset immediately after inflation is completed, preventing gas leakage when the inflation adapter 200 is removed.

[0120] The inflation adapter 200 includes a first seal 285. The first seal 285 seals the first inflation chamber 281 relative to the second inflation chamber 282. The housing 260 has a first inner wall 261. The first seal 285 is fitted onto one end of the first drive member 241 near the second drive member 242 and is interference-fitted with the first inner wall 261. This prevents airflow from returning to the first inflation chamber 281 when it flows out of the connecting hole 244 from the first drive member 241 and into the second inflation chamber 282, resulting in high inflation efficiency. The second inflation chamber 282 constitutes a portion of the inflation channel 230.

[0121] The second drive member 242 extends substantially along the fourth direction 104 and is substantially cylindrical. The outer casing 260 has a second inner wall 262. A portion of the second drive member 242 is accommodated within the second inner wall 262 and is clearance-fitted with the second inner wall 262. After flowing through the second inflation chamber 282, the airflow flows through the gap 263 between the second drive member 242 and the second inner wall 262, and finally flows into the air storage space 201. The gap 263 between the second drive member 242 and the second inner wall 262 constitutes the final portion of the inflation channel 230.

[0122] The inflation adapter 200 includes a second seal 286. The second seal 286 is fitted onto the engagement portion 222. The second seal 286 seals the second connecting end 220 relative to the vent portion 155. When the second connecting end 220 moves to its limit position, the engagement portion 222 holds the second connecting end 220 in the limit position, and the second seal 286 forms a sealed space between the inflation channel 230 and the air storage space 201.

[0123] The second drive member 242 includes a trigger portion 247. The trigger portion 247 can open the valve 156 under user operation. The trigger portion 247 protrudes from or retracts into the air outlet 221 as the second drive member 242 moves. When the second connection end 220 moves to its limit position, the trigger portion 247 protrudes from the air outlet 221 to open the valve 156.

[0124] The vent 155 is threaded onto the valve 156. The valve 156 includes a trigger rod 1561. When the user operates the operating unit 250, the trigger part 247 of the second drive member 242 abuts against the trigger rod 1561 to drive the trigger rod 1561 to move. The movement of the trigger rod 1561 opens and closes the valve 156.

[0125] The inflation process using the air adapter 200 is as follows: First, the user connects the air adapter 200 to the fastener driver 100 via the engaging part 222. The second connecting end 220 moves to its limit position, at which point the drive assembly 240 is in the second position where the valve 156 is not open. After the air adapter 200 and fastener driver 100 are securely connected, when the user operates the operating part 250 for the first time, the drive assembly 240 moves from the second position to the first position, opening the valve 156. After the valve 156 is open, the user can inflate the energy storage device 150. When the user operates the operating part 250 again, the drive assembly 240 returns from the first position to the second position, the valve 156 closes, and inflation ends. The user then disconnects the air adapter 200 from the fastener driver 100 via the engaging part 222. There is no air leakage throughout the inflation process. Inflation only begins after the user operates the operating part 250, allowing the user to control the inflation timing, making it convenient to use.

[0126] An air source is connected to an air inlet 211 via an air inlet pipe 212. In some embodiments, a quick connector is provided between the air inlet pipe 212 and the air inlet 211 to facilitate connection of the inflation adapter 200 to the air source. The air inlet 211 extends substantially perpendicular to the fourth direction 104. Thus, the relatively long air inlet pipe 212, connected substantially perpendicular to the first direction to the air inlet 211, does not obstruct the user's operation of the operating unit 250 along the fourth direction 104, providing comfortable and convenient use. In some embodiments, the air inlet 211 may also extend in other directions, such as parallel to the fourth direction 104. The first connecting end 210 is rotatable relative to the second connecting end 220, allowing the user to inflate the fastener driver 100 from different positions. In this embodiment, the operating unit 250 and the air inlet 211 are rotatable relative to the housing 260.

[0127] In this embodiment, the air adapter 200 also includes a filter 290. The filter 290 filters the air, improving the purity of the gas entering the energy storage device 150, preventing dust from entering the energy storage device 150, and improving the impact force and service life of the fastener driver 100. The filter 290 is connected to the air inlet 211 to allow filtered air to enter the air inlet 211. The air inlet pipe 212 is connected to the filter 290 via a quick connector, and the filter 290 is connected to the air inlet 211 and moves with the operation unit 250. The gas in the air source enters the filter 290 from the air inlet pipe 212, is filtered by the filter 290, and then enters the air filling channel 230 from the air inlet 211, preventing dust from entering the energy storage device 150 and reducing the frictional resistance of the piston 122 during movement.

[0128] like Figure 45As shown, in some embodiments, the inflation adapter 200 may also be equipped with a measuring device 291. During inflation, the air pressure in the inflation channel 230 and the air storage space 201 is the same. The measuring device 291 measures the air pressure in the inflation channel 230 and the air storage space 201. The measuring device 291 includes a display screen and buttons. The display screen shows the measured air pressure value, making it convenient for the user to see the measured air pressure value. The buttons allow the user to operate the measuring device 291 to perform operations such as powering on, zeroing, and calibrating. The usage process of the measuring device 291 is similar to the inflation process. The user first moves the second connection end 220 to its extreme position to establish a seal between the inflation adapter 200 and the fastener driver 100, and then operates the operating unit 250 to open the valve 156 to measure the air pressure. After measuring the air pressure, the user operates the operating unit 250 to close the valve 156 and then disconnects the seal between the inflation adapter 200 and the fastener driver 100. The user does not need to re-inflate the fastener driver 100 to measure the air pressure, making it convenient and quick to use. After valve 156 is opened, a small portion of the gas in the gas storage space 201 diffuses into the charging adapter 200 and the measuring device 291, causing a slight decrease in the gas pressure within the energy storage device 150. The gas-containing space inside the measuring device 291 is less than or equal to 5% of the gas storage space 201. Thus, the gas-containing space inside the measuring device 291 is extremely small compared to the gas storage space 201, ensuring a minimal decrease in gas pressure within the energy storage device 150 and accurate pressure measurement by the measuring device 291. In some embodiments, the measuring device 291 can compensate for the pressure decrease within the energy storage device 150 through a calibration function, ensuring accurate pressure measurement.

[0129] like Figures 46 to 49 As shown, a portion of the magazine 120 is enclosed by the housing 110. The magazine 120 is secured to the main housing 111. The main housing 111 includes a fixing rib 125. The fixing rib 125 defines the mounting position of the magazine 120. The fixing rib 125 has a positioning groove 126. The positioning groove 126 secures the magazine 120 to the main housing 111 along the length of the magazine 120. The magazine 120 includes a magazine housing 127. The magazine housing 127 is defined within the positioning groove 126. The ratio of the length L9 of the fixing rib 125 to the length L10 of the magazine 120 is greater than or equal to 0.3. In some embodiments, the ratio of the length L9 of the fixing rib 125 to the length L10 of the magazine 120 is greater than or equal to 0.4. In some embodiments, the ratio of the length L9 of the fixing rib 125 to the length L10 of the magazine 120 is greater than or equal to 0.5. In this way, most of the length of the magazine 120 can be fixed by the positioning slot 126 and wrapped by the main housing 111, making the magazine 120 easy and stable to install and not easy to shake.

[0130] like Figures 50 to 55As shown, this application also proposes another embodiment of a fastener driver 300, the structure of which is substantially the same as that of the fastener driver 100. The fastener driver 300 includes a housing 310. The housing 310 includes a main housing 311, a transmission part 312, and a grip part 313 for user holding. The transmission part 312 houses a motor 160. The transmission part 312 is disposed in front of the grip part 313. The motor 160 is disposed in front of the grip part 313. When the fastener driver 300 is viewed from the front-rear direction, the grip part 313, the energy storage device 150, and the motor 160 have center lines. The center line of the energy storage device 150 when viewed from the front-rear direction is named Y1, the center line of the grip part 313 when viewed from the front-rear direction is named Y2, and the center line of the motor 160 when viewed from the front-rear direction is named Y3. It should be noted that the centerline refers to the feature line formed by connecting the center points of the grip 313, the energy storage device 150, and the motor 160 in the width direction when viewed from the front-back direction. When the grip 313, the energy storage device 150, or the motor 160 is tilted, the degree of tilt of the centerline changes with the degree of tilt of the grip 313, the energy storage device 150, or the motor 160, but the centerline is still located at the middle position in the width direction of the grip 313, the energy storage device 150, or the motor 160.

[0131] The centerline Y2 of the grip 313 is at least partially located between the centerline Y1 of the energy storage device 150 and the centerline Y3 of the motor 160. Since the drive member 142 drives the striker 131 from the side, when the fastener driver 300 is viewed from the front and rear, the striker 131 and the drive member 142 are misaligned, and the energy storage device 150 housing the striker 131 and the motor 160 driving the drive member 142 are also misaligned. The motor 160 is located to the right of the energy storage device 150. The motor 160 is relatively heavy. The motor 160 is connected to the gearbox 1401, which houses the gear set 141; the gearbox 1401 and the gear set 141 are also relatively heavy. Therefore, when the user grips the grip 313 to use the fastener driver 300, the right side of the user's hand bears more weight. When using the fastener driver 300, the user's hand is prone to tilting to the right. The center line Y2 of the grip portion 313 is at least partially located between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160, that is, between the center line Y2 of the grip portion 313 and the center line of the main housing 311 and the center line of the transmission portion 312. The center line Y2 of the grip portion 313 is to the right of the center line Y1 of the energy storage device 150 and to the left of the center line Y3 of the motor 160. In this way, the user's grip position is offset from the center line Y1 of the energy storage device 150, and the user's grip position is closer to the center line Y3 of the motor 160. In the left-right direction, the user's hand is closer to the heavier motor 160 and transmission mechanism, the fastener driver 300 is comfortable to use, the user's hand bears weight evenly, and it is not easy to flip over. In this embodiment, the center line Y2 of the grip portion 313 is located between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160. The center line Y2 of the grip portion 313 is substantially parallel to the center line Y1 of the energy storage device 150. The center line Y2 of the gripping part 313 is basically parallel to the center line Y3 of the motor 160. The center line Y3 of the motor 160 is basically coincident with the rotation axis of the motor 160.

[0132] The fastener actuator 300 has a center of gravity G. The center of gravity G of the fastener actuator 300 is located on the side of the energy storage device 150 closer to the motor 160. The center line Y2 of the grip 313 is at least partially located between the center line Y1 of the energy storage device 150 and the center of gravity G. In the left-right direction, the user's grip position is closer to the center of gravity G of the fastener actuator 300, so the downward force exerted by the weight of the motor 160 and gearbox 1401 is more effectively distributed to the user's hand and supported by the wrist and arm, rather than concentrated on one side of the user's hand. The user's hand is less prone to left-right twisting, making it comfortable, safe, and with balanced weight distribution. Users are less likely to experience fatigue when using the fastener actuator 300 for extended periods.

[0133] The fastener driver 300 includes a connecting portion 314. The centerline of the connecting portion 314 when viewed from the front-rear direction is named Y4. The centerline Y4 of the connecting portion 314 is at least partially located between the centerline Y1 of the energy storage device 150 and the centerline Y3 of the motor 160. The centerline Y4 of the connecting portion 314 and the centerline Y2 of the gripping portion 313 are on the same plane. The centerline Y4 of the connecting portion 314 is close to the center of gravity G of the fastener driver 300, making the fastener driver 300 stable when placed vertically and less prone to tipping over. The fact that the centerline Y4 of the connecting portion 314 and the centerline Y2 of the gripping portion 313 are on the same plane reduces the manufacturing cost of the fastener driver 300. The main housing 311 includes a first housing 3112 and a second housing 3113. The first housing 3112 and the second housing 3113 are bonded along a mating surface. The mating surface of the first housing 3112 and the second housing 3113 passes through the centerline Y2 of the gripping portion 313 and the centerline Y1 of the energy storage device 150. When manufacturing the fastener driver 300, the first housing 3112 and the second housing 3113 are bonded together along the mating surface, and the center line Y2 of the gripping part 313 and the center line Y1 of the energy storage device 150 are offset relative to the center line Y1 of the energy storage device 150. The manufacturing process is simple, precise, and low-cost.

[0134] In some embodiments, the center line Y4 of the coupling 314 is at least partially located on the side of the center line Y1 of the energy storage device 150 that is away from the center line Y3 of the motor 160. Thus, when the battery pack 115 is mounted on the coupling 314, the center of gravity G of the fastener driver 300 shifts to the left due to the greater weight of the battery pack 115. The center line Y2 of the grip 313, i.e., the user's grip position, is closer to the center of gravity G, making the fastener driver 300 more comfortable to use.

[0135] Since the direction of the first straight line 101 from which the fastener 10 is ejected substantially coincides with the center line Y1 of the energy storage device 150, the grip portion 313 is generally at least partially disposed below the energy storage device 150 so that the user's grip position is close to the position from which the fastener 10 is ejected in the left-right direction. The energy storage device 150 includes a first cylinder 151. The center line Y2 of the grip portion 313 is at least partially disposed between the center line of the first cylinder 151 and the center line Y3 of the motor 160. The first cylinder 151 accommodates at least a portion of the firing pin 131. The center line Y2 of the grip portion 313 is at least partially disposed between the center line of the firing pin 131 and the center line Y3 of the motor 160. The center line Y1 of the energy storage device 150, the center line of the first cylinder 151, and the center line of the firing pin 131 substantially coincide. The center line of the trigger 3131 is at least partially disposed between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160. The center line of the trigger 3131 and the center line Y2 of the grip 313 are basically coincident.

[0136] The center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 are substantially parallel. The distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 is greater than or equal to 0.5 mm and less than or equal to 10 mm. In some embodiments, the distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 is greater than or equal to 2 mm and less than or equal to 8 mm. In some embodiments, the distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 is greater than or equal to 4 mm and less than or equal to 6 mm. The small distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 makes the user's grip position closer to the firing position of the fastener 10 in the left-right direction, which facilitates the user's alignment with the firing position of the fastener 10 and makes it convenient to use. The center line Y2 of the grip 313 is within 0.5 to 10 mm to the right of the center line Y1 of the energy storage device 150, balancing the user's needs for weight balance and shooting position alignment. This makes the user feel that the fastener driver 300 is balanced in weight and does not easily flip over, while at the same time feeling that the shooting position is easy to align, making it comfortable and convenient to use. The fastener driver 300 also has an aesthetically pleasing appearance.

[0137] The ratio of the distance L11a between the center line Y1 of the energy storage device 150 and the center line Y2 of the grip 313 to the distance L11b between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160 is less than or equal to 0.5. In some embodiments, the ratio of the distance L11a between the center line Y1 of the energy storage device 150 and the center line Y2 of the grip 313 to the distance L11b between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160 is less than or equal to 0.4, 0.3, 0.2, or 0.1.

[0138] like Figures 56 to 58As shown, this application also proposes another embodiment of a fastener driver 400, the structure of which is substantially the same as that of the fastener driver 100. The fastener driver 400 includes a magazine 420 and a guide assembly 480. The magazine 420 includes an upper magazine 421, a lower magazine 422, and a guide rail 423. The guide rail 423 guides the fastener 10 to move within the magazine. The guide rail 423 is fixed to the upper magazine 421. The upper magazine 421 is disposed on the front side of the lower magazine 422. The upper magazine 421 includes a guide assembly fixing portion 424 and a guide rail fixing portion 425. The length of the upper magazine 421 is defined by its top and bottom. The guide assembly fixing portion 424 is located at the top of the upper magazine 421, and the guide rail fixing portion 425 is located at the bottom of the upper magazine 421. The upper magazine 421 is fixed to the guide assembly 480 via the guide assembly fixing portion 424. The guide assembly fixing portion 424 includes a hole. The screw passes through the hole to secure the magazine to the guide assembly 480.

[0139] The guide rail 423 is fixed to the upper magazine 421 by the guide rail fixing part 425. Thus, since the upper magazine 421 is fixed to the guide assembly 480, and the guide rail 423 is fixed to the upper magazine 421, the guide rail 423 is fixed relative to the guide assembly 480. When the guide rail 423 guides the fastener 10 to move, the position of the fastener 10 relative to the guide assembly 480 is stable and not easily shaken, improving the nailing quality.

[0140] The guide rail fixing part 425 includes a first slotted hole 426. The shape of the first slotted hole 426 matches the shape of the fastener 10 to allow the fastener 10 to pass through. The first slotted hole 426 has a guide rail fixing end 4261. The guide rail fixing end 4261 matches the shape of the guide rail 423 so that one end of the guide rail 423 is inserted into the guide rail fixing end 4261. The upper magazine 421 includes a guide rail abutment part 427. The other end of the guide rail 423 abuts against the guide rail abutment part 427 and the guide assembly 480. In this way, the guide rail 423 can be stably fixed on the upper magazine 421, and the installation is simple.

[0141] The lower magazine 422 is fixed to the upper magazine 421. The lower magazine 422 includes a second slot 428. The shape of the second slot 428 matches the shape of the fastener 10 to allow the fastener 10 to pass through. The guide rail 423 includes a mounting groove 429. The shape of the mounting groove 429 matches the shape of the tail end of the fastener 10 to guide the movement of the fastener 10. When loading the fastener 10 into the magazine 420, the fastener 10 first passes through the second slot 428, then through the first slot 426, and then through the mounting groove 429. After being loaded into the magazine 420, the fastener 10 is not affected by the lower magazine 422. Thus, the installation accuracy requirement for the lower magazine 422 is lower during manufacturing, and even if the lower magazine 422 is loose or not aligned with the upper magazine 421, it will not affect the movement of the fastener 10.

[0142] like Figures 59 to 66 As shown, this application also proposes another embodiment of a fastener driver 500, the structure of which is substantially the same as that of the fastener driver 100. The fastener driver 500 includes a magazine 520, a firing pin 531, a fastener 50, and a guide assembly 580. The fastener 50 is U-shaped. The fastener 50 includes at least two legs 51 and a connecting portion 52 connecting the at least two legs 51. In this embodiment, the fastener 50 has two legs 51 and one connecting portion 52. The two legs 51 are the two straight portions of the U-shape, and the connecting portion 52 is the bent portion of the U-shape. The guide assembly 580 guides the fastener 50 into the workpiece. Because the fastener 50 is U-shaped, there is a gap between the at least two legs 51, and the fastener 50 is easily deformed from the at least two legs 51 after contacting the workpiece.

[0143] like Figures 60 to 63 As shown, the guide assembly 580 extends substantially along the first straight line 101. The guide assembly 580 includes a first guide structure 581. The first guide structure 581 prevents at least two legs 51 of the fastener 50 from moving closer to each other. When the fastener 50 contacts some workpiece, the two legs 51 of the fastener 50 are subjected to the force of the workpiece and move closer to each other under the action of the force. The shape of the fastener 50 changes, resulting in problems such as the fastener 50 not being able to drive into the workpiece, and the fastener 50 being misaligned, resulting in poor work quality. The first guide structure 581 prevents at least two legs 51 of the fastener 50 from moving closer to each other, so that at least two legs 51 of the fastener 50 do not retract inward after contacting the workpiece, resulting in high work quality and efficiency.

[0144] The guide assembly 580 includes a second guide structure 582. The second guide structure 582 prevents at least two legs 51 of the fastener 50 from moving away from each other. Depending on the workpiece material, when the fastener 50 contacts some workpieces, the two legs 51 of the fastener 50 may be subjected to the force of the workpiece and move away from each other under the action of the force. This changes the shape of the fastener 50, leading to problems such as the fastener 50 failing to drive into the workpiece or the fastener 50 becoming misaligned, resulting in poor work quality. The second guide structure 582 prevents at least two legs 51 of the fastener 50 from moving away from each other, ensuring that at least two legs 51 of the fastener 50 do not expand outwards after contacting the workpiece, resulting in high work quality and efficiency.

[0145] The guide assembly 580 includes a first guide structure 581 and a second guide structure 582 to prevent the shape of the fastener 50 from changing, and to prevent at least two legs 51 from retracting inward or expanding outward when in contact with the workpiece. The shape of the fastener 50 can remain unchanged when encountering different workpieces or different working conditions, resulting in high work quality and efficiency.

[0146] The guide assembly 580 includes a guide surface 583. After the fastener 50 moves to its uppermost position relative to the guide assembly 580, the guide surface 583 contacts at least two legs 51. The guide surface 583 extends substantially along the direction of the first straight line 101. When the striker 531 drives the fastener 50 to move, the upper sides of the at least two legs 51 abut against the guide surface 583 and move along the guide surface 583. A first guide structure 581 protrudes relative to the guide surface 583. When the fastener driver 500 is placed vertically, the first guide structure 581 protrudes downward relative to the guide surface 583. The first guide structure 581 is a strip-shaped rib protruding relative to the guide surface 583. The first guide structure 581 is located at the middle position of the guide surface 583, and the direction of extension of the first guide structure 581 is consistent with the direction of the first straight line 101. The at least two legs 51 abut against the guide surface 583, clamping the first guide structure 581 between the at least two legs 51. The first guide structure 581 includes at least two first abutment surfaces 588. The at least two first abutment surfaces 588 are located on both sides of the first guide structure 581 facing outward along its length. When the fastener 50 is subjected to an external force and the at least two legs 51 tend to retract inward, the at least two first abutment surfaces 588 respectively abut against the at least two legs 51 and prevent the at least two legs 51 from moving toward each other.

[0147] The first guide structure 581 includes a slide 586 located between at least two first abutment surfaces 588. Because there is a gap between at least two legs 51, at least two legs 51 can abut against the guide surface 583 when they move to their uppermost position. The connecting portion 52 is continuously shaped, so when the connecting portion 52 moves to its uppermost position, it abuts against the slide 586 of the first guide structure 581. The slide 586 extends along the direction of the first straight line 101. When the firing pin 531 drives the fastener 50 to move, the upper side of the connecting portion 52 abuts against the slide 586 and moves along the slide 586.

[0148] The second guide structure 582 protrudes relative to the guide surface 583. When the fastener driver 500 is placed vertically, the second guide structure 582 protrudes downward relative to the guide surface 583. The second guide structure 582 consists of two strip-shaped ribs protruding relative to the guide surface 583. The second guide structure 582 is located on both sides of the guide surface 583, and the extension direction of the second guide structure 582 is consistent with the direction of the first straight line 101. The second guide structure 582 includes at least two second abutment surfaces 589. The at least two second abutment surfaces 589 are located on both sides of the second guide structure 582 inward in the length direction. When the fastener 50 is subjected to an external force, and at least two legs 51 tend to expand outward, the at least two second abutment surfaces 589 abut against the at least two legs 51 respectively, preventing the at least two legs 51 from moving away from each other.

[0149] The guide assembly 580 includes a first guide 584 and a second guide 585. The first guide 584 and the second guide 585 are arranged facing each other. At least a portion of the first guide 584 is located above the second guide 585. The first guide structure 581 and the second guide structure 582 are both disposed on the first guide 584, which is simple in structure and easy to process. The first guide structure 581 and the second guide structure 582 both protrude downwards, which is convenient to manufacture and has low cost. At least a portion of the second guide 585 supports the movement of the fastener 50. The first guide 584 and the second guide 585 are fixed together by screws or other fixing methods. A movable channel 587 is formed between the first guide 584 and the second guide 585. The movable channel 587 accommodates a portion of the firing pin 531 and the fastener 50. When the firing pin 531 pushes the fastener 50 to move, at least a portion of the fastener 50 moves within the movable channel 587. When the fastener 50 moves, at least two legs 51 abut against the first guide structure 581. The upper side of the connecting part 52 abuts against the first guide 584, and the lower side of the connecting part 52 abuts against the second guide 585. The first guide 584 mainly guides the fastener 50, and the second guide 585 mainly supports the movement of the fastener 50. The structure is effective and simple.

[0150] like Figure 64 As shown, the first guide structure 581 also guides the movement of the striker 531. The striker 531 includes a guide groove 532. The guide groove 532 extends along the direction of the first straight line 101. When the striker 531 moves, the guide groove 532 engages with at least a portion of the first guide structure 581. The first guide structure 581 and the guide groove 532 cooperate to guide the movement of the striker 531. In this way, the longer striker 531 is less prone to wobbling, and the fastener driver 500 operates with high quality. In the front-rear direction, the ratio of the length L12 of the guide groove 532 to the length L5 of the striker 531 is greater than or equal to 0.4 and less than or equal to 0.8. In some embodiments, the ratio of the length L12 of the guide groove 532 to the length L5 of the striker 531 is greater than or equal to 0.5 and less than or equal to 0.7. In some embodiments, the ratio of the length L12 of the guide groove 532 to the length L5 of the striker 531 is approximately 0.6. The length L12 of the guide groove 532 is longer than the length L5 of the striker 531. This ensures that even when the striker 531 moves to a position far from the top stop of the guide assembly 580, a portion of the guide groove 532 still engages with the first guide structure 581. Throughout the entire movement of the striker 531, the striker 531 is guided in its direction of movement by the guide assembly 580, preventing it from wobbling and ensuring high-quality operation of the fastener driver 500.

[0151] After contact with the guide assembly 580, at least two legs 51 contact the guide surface 583, and the connecting portion 52 contacts the slide rail 586, resulting in a height difference between the at least two legs 51 and the connecting portion 52. The extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101. The angle c of inclination of the extension direction of the fastener 50 relative to the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 8 degrees. In some embodiments, the angle c of inclination of the extension direction of the fastener 50 relative to the direction of the first straight line 101 is greater than or equal to 1 degree and less than or equal to 7 degrees. In some embodiments, the angle c of inclination of the extension direction of the fastener 50 relative to the direction of the first straight line 101 is greater than or equal to 2 degrees and less than or equal to 6 degrees. The smaller the angle c of inclination of the extension direction of the fastener 50 relative to the direction of the first straight line 101, the less affected the work quality when the fastener 50 is inserted into the workpiece.

[0152] like Figures 65 to 66 As shown, the fastener driver 500 includes a lifting member 524. A second guide 585 includes an inlet 5851. The inlet 5851 communicates with at least a portion of the magazine 520. The lifting member 524, through elasticity, tightly arranges a row of fasteners 50 vertically within the magazine 520. The elasticity is generated by an elastic element, such as a spring, coil spring, etc. The lifting member 524 is configured to move the fasteners 50 so that they pass through the inlet 5851. After a fastener 50 is fired, the fastener 50 is subjected to the force of the lifting member 524 and is lifted upwards by the lifting member 524. The top fastener 50 in the row of fasteners 50 passes through the inlet 5851 to await being fired by the firing pin 531. In this embodiment, the elastic element is a lifting spring 525. The upper end of the lifting spring 525 is fixedly connected to the guide assembly 580. The lower end of the lifting spring 525 is fixedly connected to the left side of the lifting member 524. When installing the fastener 50, the user first overcomes the elastic force of the lifting spring 525 and moves the lifting member 524 downward. The lifting spring 525 deforms and lengthens. After reserving enough space to place a row of fasteners 50, the user releases the spring, and the lifting spring 525 drives the lifting member 524 to lock the fasteners 50 into the magazine 520. The lower end of the lifting spring 525 is fixedly connected to the left side of the lifting member 524. Thus, the force on the left side of the lifting member 524 is greater than the force on the right side. The left side of the lifting member 524 is higher than the right side. The lifting member 524 is tilted relative to the first straight line 101, causing the extension direction of the fastener 50 to be tilted relative to the first straight line 101. The angle of tilt of the lifting member 524 relative to the first straight line 101 is the same as the angle c of tilt of the extension direction of the fastener 50 relative to the first straight line 101.

[0153] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above embodiments. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A fastener driver, comprising: The striking assembly includes a piston and a striking pin, the striking pin being connected to the piston; The transmission mechanism includes a drive member configured to drive the striking component to move backward to the upper stop position; An energy storage device is configured to drive the striking component forward to the lower stop position to output striking force. The energy storage device includes a vent for charging and deflating the energy storage device. The control device is configured to control the firing pin to be in a stopped position, the stopped position being located between the upper dead center position and the lower dead center position; The striking component is configured to move backward to and remain in a preparatory position that passes the stop position and approaches the top dead center position before the energy storage device is inflated, or to move backward to and remain in an inflated position that reaches or passes the top dead center position.

2. The fastener driver according to claim 1, characterized in that, The striking component is configured to move forward toward the lower stop position when the energy storage device is inflated.

3. The fastener driver according to claim 2, characterized in that, The striking component is configured to move forward to the lower stop position when the energy storage device is inflated.

4. The fastener driver according to claim 1, characterized in that, Before the energy storage device is inflated, the transmission mechanism drives the striking component to move backward to and remain at the inflation position.

5. The fastener driver according to claim 1, characterized in that, The striking component is configured to move backward to and remain at the inflation position when the energy storage device deflates through the vent.

6. The fastener driver according to claim 1, characterized in that, The energy storage device includes a first cylinder, and at least a portion of the striking component is configured to move within the first cylinder.

7. The fastener driver according to claim 1, characterized in that, The transmission mechanism includes a motor configured to brake and stop the backward movement of the striking component. When the motor brakes, the motor is configured to rotate a first number of braking revolutions from the start of braking to the end of braking before the energy storage device is inflated, and rotate a second number of braking revolutions from the start of braking to the end of braking after the energy storage device is inflated. The difference between the first number of braking revolutions and the second number of braking revolutions is greater than or equal to 6 revolutions and less than or equal to 12 revolutions.

8. The fastener driver according to claim 1, characterized in that, The fastener driver includes a detection component that detects the position of the striking component relative to the inflation position.

9. The fastener driver according to claim 1, characterized in that, The fastener driver includes a display device that shows the position of the striking component.

10. The fastener driver according to claim 1, characterized in that, The transmission mechanism includes a clutch component that restricts the forward movement of the striking component when the striking component and the driving component are engaged.

Images