• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An electric screwdriver (100) comprises a motor with a motor shaft, a handle housing (11) for housing the motor, an output shaft at least partially projecting forwardly relative to the handle housing (11), a device transmission device enabling the drive shaft to drive the output shaft in rotation about a first axis (M), an exploration antenna for detecting whether an object is loaded, and a control switch coupled to the housing sleeve (11) for controlling the engine. The scanning antenna has a front end portion extending beyond the sleeve housing (11). The output shaft has an insertion groove (151), the ratio between the maximum dimension of the sleeve housing (11) and the maximum dimension of the insertion groove (151) in the radial direction of the output shaft being greater than or equal to 3.9 and smaller than or equal to 8.
    公开号:FR3026333A3
    申请号:FR1559224
    申请日:2015-09-30
    公开日:2016-04-01
    发明作者:Gan Wei；Wu Chen；Shichun Tao
    申请人:Chevron Intellectual Property Ltd；
    IPC主号:
    专利说明:

    [0001] The present application relates to electric screwdrivers, more particularly to a multifunction electric screwdriver. A manual screwdriver is a necessary tool for any electrician. In addition, other tools are needed, such as a wire stripper, long nose pliers, a flashlight, and a tester pen. The tools mentioned above are generally used for any electrical installation operation, and must be replaced often. So far, there is no multifunctional electric screwdriver with a correct and reliable structure, able to perform the functions of the tools above. The application discloses an electric screwdriver comprising: a motor with a motor shaft; a power source for supplying power to the motor; a sleeve case, the motor and the power source being housed in the sleeve case; an output shaft at least partially protruding from the sleeve housing, the output shaft defining an insertion groove, the ratio between the maximum dimension of the sleeve housing and the maximum dimension of the insertion groove in a radial direction the output shaft being greater than or equal to 3.9 and smaller or equal to 8; a transmission device for allowing the motor shaft to rotate the output shaft about a first axis; a tester assembly for detecting whether an object is loaded; and a switch coupled to the sleeve housing for controlling the motor. The application also discloses an electric screwdriver comprising: a motor with a motor shaft; a handle housing for receiving at least the motor; an output shaft at least partially protruding from the sleeve housing, the output shaft defining an insertion groove, the ratio between the maximum dimension of the sleeve housing and the maximum dimension of the insertion groove in a radial direction the output shaft being greater than or equal to 3.9 and smaller or equal to 8; a transmission device for allowing the motor shaft to rotate the output shaft about a first axis; an exploration antenna for detecting whether an object is loaded; a tester button to control whether the scanning antenna has been powered up; and a switch coupled to the sleeve housing for controlling the motor.
    [0002] Figure 1 shows a schematic structural view of an electric screwdriver of the present application. Figure 2 shows another schematic structural view of the electric screwdriver of Figure 1, taken from another angle.
    [0003] FIG. 3 represents a schematic perspective view showing the internal structure of the electric screwdriver of FIG. 1. FIG. 4 represents a schematic planar view showing the internal structure of the electric screwdriver of FIG. 1. FIG. 5 represents an exploded view showing the FIG. 6 is a schematic view of the electric screwdriver of FIG. 1, in which a handle housing, a lighting assembly and an antenna protector have been removed. Fig. 7 is a schematic structural view showing the handle housing of the electric screwdriver of Fig. 1.
    [0004] FIG. 8 is an enlarged schematic view showing the stripping assembly of the electric screwdriver of FIG. 1. FIG. 9 is a schematic structural view showing a preferred embodiment of the stripping assembly of the electric screwdriver of FIG. FIG. 10 is an enlarged schematic view of the stripping assembly of FIG. 9. FIG. 11 is a schematic structural view showing another preferred embodiment of the stripping assembly of the electric screwdriver of FIG. 12 is an enlarged schematic view showing the stripping assembly of FIG.
    [0005] The drawings described in this document are only an illustration of the exemplary embodiments and not of all possible implementations, and are not intended to limit the scope of the present application. The corresponding reference numbers indicate the corresponding parts throughout the different views of the drawings. The following description of the preferred embodiments is given by way of example only, being in no way intended to limit the invention, its applications or its uses.
    [0006] An electric screwdriver 100 as shown in FIGS. 1-4 may comprise a handle housing 11, a power source 12, a motor 13, a transmission device 14, an output shaft 15, a circuit 16 and a power switch. 17. In order to simply explain the technical solution of the present application, some terms are defined as follows: the rotational axis of the output shaft 15 is defined as the first axis M, the direction of the first axis M and a direction parallel to the first axis M are defined as axial direction, a circumferential direction surrounding the axial direction is defined as a circumferential direction, and a direction perpendicular to the axial direction and intersecting the first axis M is defined as radial direction.
    [0007] The sleeve housing 11 receives the motor and comprises a front end for the installation of the output shaft 15 and a rear end well away from the output shaft 15. The sleeve housing 11 serves to form a handle for gripping and forms a housing cavity for housing the power source 12, the motor 13 and the transmission device 14. Explicitly, the sleeve housing 11 has a substantially linear shape and comprises a first housing 111 and a second housing 112 connected in a single piece by screws. The sleeve housing 11 partially houses the output shaft 15, one end of which is at the front end of the sleeve housing 11 and whose other end protrudes from the handle housing 11. The end of the output shaft The insertion groove 151 is used for connection with elements such as screwdriver bits, screws, and so on. The motor 13 has a motor shaft and the transmission device 14 is used to allow the motor shaft to drive the output shaft 15 in rotation about a first axis M. The transmission device 14 is a box of transmission to convert between rotation speed and torque. A shaft lock is provided inside the transmission device 14. The shaft lock allows torque to be transmitted only from the motor 13 to the output shaft 15, and when the torque is transmitted in a reverse manner at the of the output shaft 15, the output shaft 15 is locked with the gearbox. The user can use the electric screwdriver as a manual screwdriver when the output shaft 15 is blocked by the shaft lock.
    [0008] Preferably, the insertion groove 151 is a standard internal hexagonal hole with a circumscribed circle of diameter 6.5 mm and the handle housing 11 has a maximum dimension of 50 mm in the radial direction of the output shaft 15. During use effective, in order to facilitate the use by the user, it is desirable that the sleeve housing 11 is easy to grip, the size of the sleeve housing 11 to be designed as small as possible, especially the dimension in the radial direction of the output shaft 15, with an obvious effect on grip comfort. On the other hand, when the electric screwdriver 100 is used as the usual manual screwdriver, it is desirable to obtain a relatively high torque using a force as small as possible at the tip of the screwdriver. According to the principle of the lever, in the radial direction of the output shaft 15, the larger the sleeve housing 11, the smaller the insertion groove 151, and the lower the force needed by the user. In general, taking into account the structure, the size of the insertion groove 151 in the radial direction should not be too small. In order to match the standard tips, the size of the insertion groove 151 is generally constant, the sleeve housing 11 should not be too small, therefore. In order to overcome the above contradiction, the present disclosure takes into account in detail a series of dimensions of internal hex holes of the standard tips, the size of the user's palm and the friction force comfortably supported by the palm during rotation by the user and determined by experiments that if the ratio between the maximum dimension of the sleeve housing 11 and the maximum dimension of the insertion groove 151 in the radial direction of the output shaft 15 is greater or equal to 3.9 and smaller or equal to 8, the screwdriver will be easy to grasp and easy to rotate manually by the user. Preferably, the transmission ratio between the rotating motor shaft of the motor 13 and the output shaft 15 is greater than or equal to 50 and smaller than or equal to 100, which means that the transmission ratio provided by the device The transmission ratio 14 is greater than or equal to 50 and smaller than or equal to 100. In addition, as a preferred solution, the transmission ratio is between 90 and 100. With the transmission ratio above, the user can obtain good sensitivity of use.
    [0009] The power source 12 is used to power the motor 13. The power source 12 is disposed in the sleeve housing 11 and comprises at least one battery. Preferably, the battery is a lithium battery. The lithium battery can be a primary battery or a rechargeable battery. For the rechargeable battery, a charge indicator 163 is provided to indicate the state of charge. When the rechargeable battery is charged, the charge indicator 163 is on; when the rechargeable battery is being charged, the charging indicator 163 is red; and when the rechargeable battery is fully charged, the charge indicator 163 is green. The motor 13 is connected to the transmission device 14. The transmission device 14 is driven by the motor 13 in order to in turn drive the output shaft 15 in rotation about the first axis M. To obtain a sleeve housing dimension As small as possible, the motor 13 may be a micro-motor with a relatively high output torque. The circuit 16 is used to control whether the power source 12 supplies the motor 13. The circuit 16 comprises a control printed circuit 161 and a pin switch 162. The printed circuit 161 is supplied with a power supply circuit enabling the supply source 12 for supplying the motor 13. The printed circuit 161 is furthermore provided with a charging indicator 163 and a charging interface 164. The charge indicator 163 is the above indicator indicating the state of charge of the rechargeable battery. The charge indicator 163 is attached to the circuit board 161 and the sleeve case includes a visible window through which the user can observe the status of the charging indicator 163. The charging interface 164 is used to charge the rechargeable battery in the power source 12, and is also attached to the printed circuit 161, the sleeve housing 11 being further provided with a load groove for receiving and securing the load interface 164. Preferably, the charging interface 164 can be a 164 USB charging interface, thus adapting to various chargers. The shank switch 162 is fixedly disposed in the handle housing 11 and is used to turn on or turn off the power circuit to control whether the power source 12 is supplying power to the motor 13. The switch rod 162 is provided with a control rod 162a on which it can act. By triggering and restoring the control rod 162a, the switch 162 can be closed or opened. The control switch 17 can control the control circuit 16 to control the operation of the motor 13 by its actuation. The control switch 17 has a control portion, and a portion having a maximum distance between two points of the control portion in a circumferential direction of the first axis that has an angle of at least 60 degrees. Explicitly, the control switch 17 has an annular configuration surrounding and engaging the outer surface of the sleeve housing 11, forming a rotating connection with the handle housing 11 about the first axis M. Preferably, to control the control circuit 16 to enable at the supply source 12 to supply power to the motor 13 when the control switch 17 rotates around the handle housing 11, a fork-shaped element 18 is furthermore provided inside the handle housing 11. The fork-shaped element 18 can be integrated in the control switch 17 or can be separated from the control switch 17. In the present embodiment, the control switch 17 is separated from the control switch 17. fork-shaped element 18, thus being easily removable. In order to allow the fork member 18 to act on the control rod 162a of the rod switch 162 when the control switch 17 rotates around the handle housing, a block 171 is provided therein of the control switch 17. The block 171 forces the fork member 18 to rotate synchronously with the control switch 17. Explicitly, as shown in FIG. 7, the block 171 protrudes radially. to the inside of the control switch 17 and the handle housing 11 is correspondingly provided with a hole 113 through which the block 171 passes, so that the block 171 can extend into the handle housing 11 to enter in contact with the fork member 18 of the control switch 17, outside the handle housing 11. As shown in Figures 1 and 5, the fork-shaped member 18 includes a portion jaw 181, a leg portion 182 and a linkage 183. The jaw portion 181 is used to cooperate with the block 171 of the control switch 17. The jaw portion 181 is further provided with a groove 181a in which the block 171 is embedded. The groove 181a extends in a direction parallel to the axial direction so that the block 171 rotates with the control switch 17 around the first axis M, the fork-shaped element 18 being able to rotate synchronously with the control switch 17, thanks to the cooperation with the jaw portion 181. The connecting portion 183 is used to connect the jaw portion 181 and the leg portion 182. The connecting portion 183 is fitted on the motor 13 to support the fork member 18. The leg portion 182 extends in the axial direction from the connecting portion 183. In addition, the leg portion 182 and the jaw portion 181 are disposed on two sides. opposite of the connecting portion 183, in the axial direction. The tab portion 182 extends to contact the control rod 162a of the stem switch 162 of the circuit 16. Thus, when the fork-shaped member 18 is forced by the control switch 17 to turn around the first axis M, the tab portion 182 may act on the control rod 162a so that the rod switch 162 closes, thereby turning on the power supply circuit and the power source 12 that can supply the power supply. motor 13 for rotating the output shaft 15. In order to automatically cut the power supply between the power source 12 and the motor 13, when the user triggers the control switch 17, the electric screwdriver 100 further comprises a first biasing element 19 for biasing the fork member 18 to automatically restore it to the recovery position. When the fork-shaped member 18 is in the recovery position, the leg portion 182 is disengaged from the control rod 162a and the stem switch 162 interrupts the supply circuit, the circuit 16 thereby cutting the power supply between the power source 12 and the motor 13, the output shaft 15 ceases to rotate. The first biasing element 19 comprises four spiral springs. One end of each spiral spring is attached to the connecting portion 183, the other end abutting the sleeve housing 11. When the control switch 17 is triggered, the compressed spiral springs urge the shaped member fork 18 to return to the recovery position under the action of the force of the springs. At the same time, the control switch 17 returns to the initial position thanks to the cooperation between the jaw portion 181 of the fork-shaped element 18 and the block 171 of the control switch 17. The electric screwdriver 100 further comprises a lighting assembly 2, a tester assembly 3, a stripping assembly 4, the lighting assembly 2, the tester assembly 3 and the stripping assembly 4 being additional functional members integrated with the electric screwdriver 100 to perform various functions, thus making the device serve several purposes. In what follows, the additional functions integrated in the electric screwdriver 100 of the present application are described.
    [0010] As shown in FIGS. 3 and 5, the lighting assembly 2 is disposed on the surface of the front end outside the handle housing 11, separated from the handle housing 11. The lighting assembly 2 is used for lighting and generates signals recognizable by the eyes. Explicitly, the lighting assembly 2 comprises a lighting lamp 21 for illuminating the area in front of the output shaft 15, an operating lamp 22, a lighting circuit 23, a light shield 24 and a The lighting lamp 21 is used to illuminate when the electric screwdriver 100 is used in a dark area, the operating lamp 22 serves as a light indicator when the tester assembly 3 is operating. Both the illumination lamp 21 and the operating lamp 22 are attached to the illumination printed circuit 23 which has an annular configuration. The light shield 24 is used to enclose the illumination printed circuit 23 and is disposed on the front end of the handle housing 11. The light shield 24 also has an annular configuration and includes a light shielding body 241 and a window 242. The light shielding body 241 is made of light attenuating material, while the window 242 is made of transparent material. The illumination lamp 21 is disposed in the light shield 24, the window 242 being disposed in the light shielding body 241 in a position corresponding to the illumination lamp 21. The light shielding body 241 is further provided with a through hole 241a. The operating lamp 22 protrudes from the light shielding body 241 through the hole 241a to provide a visible signal. The fixing flange 25 is fixed on one end of the sleeve housing 11 to mount the lighting assembly 2 on the outside of the sleeve housing 11. The fixing flange 25 has an annular configuration, within which is provided with a pair of mounting walls 251. The lighting circuit 23 and the light shield 24 are fixed to the mounting flange 25 by screws through the light shielding body 241 and the printed circuit board. 23, extending to the mounting walls 251.
    [0011] The lighting circuit 23 is provided with a lighting circuit for controlling the illumination lamp 21. Under the control of the illumination circuit, the illumination lamp 21 has synchronous power-up and power-up functions. power off delay, which means that when the control switch 17 is engaged, the lighting lamp 21 is turned on, and when the control switch 17 is triggered, the lighting lamp 21 remains still on for a while, then off. Preferably, the lighting lamp 21 remains on for 10 s to 60 s, then turns off. As a result, when the work area is relatively dark and the screws are invisible, the control switch 17 may be engaged for a time and then triggered, the operating position being determinable before the operation begins. As shown in Figures 5 and 6, the tester assembly 3 is used to detect whether an object is loaded. The tester assembly 3 comprises an exploration antenna 31 for detecting whether an object is loaded, a test button 32 and an antenna protection 33. The exploration antenna 31 is separately arranged on the outside of the housing 11, and has a front end portion extended beyond the sleeve housing 11. The scanning antenna 31 and the sleeve housing 11 are disposed on two opposite sides of the light shield 24. The antenna exploration 31 comprises a coiled coil. When the scanning antenna 31 approaches a charged object, a magnetic field is formed in the coil, thereby sending a signal indicating that the object is charged. Preferably, the tester assembly 3 comprises an indicator device making it possible to indicate the detected structure. The indicator device may be a beeper or the lamp 22, or both. In this embodiment, the indicator device comprises, for example, a pager and an operating lamp, the beeper being disposed in the handle housing 11 and the operating lamp 22 being disposed in the illumination assembly 2. The button test 32 must be depressed to see if the exploration antenna 31 has been powered by the user after the test and the test button 32 is placed on the sleeve housing 11 to facilitate implementation. The antenna guard 33 is placed in front of the handle housing 11 and further in front of the light shield 24. The antenna guard 33 includes an assembly portion 331 and a probe portion 332.
    [0012] The connecting portion 331 serves to connect the antenna guard 33 to the handle housing 11 and the probe portion 332 is used to house the exploration antenna 31. The probe portion 332 protrudes forwardly relative to the assembly part 331. The assembly part 331 surrounds the output shaft 15 and is installed with the light shield 24 and the lighting circuit board 23 by means of screws. The probe portion 332 is used to house the scanning antenna 31. The probe portion 332 protrudes forwardly relative to the connecting portion 331 and extends in the axial direction of the output shaft 15, to thus approach more easily the object to be tested, without affecting the rotation of the output shaft 15. Preferably, the protection against the light 24 also protrudes with respect to the antenna protection 33 and the sleeve housing 11 in the axial direction of the output shaft 15. This means that the maximum radial dimension of the light shield 24 is greater than the maximum radial dimension of the antenna guard 33 and the handle housing 11, the lamp lighting 21 can thus illuminate as much as possible a larger area, without being affected by the antenna protection 33 and the sleeve housing 11.
    [0013] The printed circuit 161 is further provided with a test switch 34. The test switch 34 is correspondingly arranged to the test button 32, coming into contact with the test button 32. test 32 is depressed, the test switch 34 allows the tester assembly 3 to turn on to start the test operation. In order to ensure the accuracy of the test, the tester assembly is further provided with a self-check circuit for checking the integrity of the tester assembly 3. Under the action of the auto circuit - control, when the test button 32 is triggered, if the tester assembly 3 is in good condition, the beeper beeps and the operating lamp 22 flashes; otherwise, the beeper does not beep and the operation lamp 22 does not flash to indicate that the tester device is damaged. Thus, after having determined that the tester assembly 3 is in good condition, the exploration antenna 31 is approached to the object to be tested, the button 32 being depressed, if the object to be tested has an electrical signal, the pager will beep continuously, the flashlight 22 flashing continuously. As shown in FIG. 8, the stripping assembly 4 is integrated outside the handle housing 11, the handle housing 11 side being bent inwardly to form a stripping groove 114 for housing the housing. Stripping assembly 4. The stripping assembly 4 comprises a first stripping element and a second stripping element. The first stripping element is a first blade 41 fixedly installed in the stripping groove 114 of the sleeve housing 11. The first blade 41 has an edge partially protruding from the handle housing 11, it is perpendicular to the longitudinal direction of the sleeve case 11. Preferably, the second stripping element is a stripping button 42 with or without a blade. In this embodiment, for example, stripping button 42 has no blade. The stripping button 42 can approach or move away from the first blade 41. Preferably, the stripping button 42 is placed outside the first blade 41 and forms a rotatable connection with the sleeve housing 11. One end of the button stripping device 42 is mounted on the sleeve housing 11 by means of a rotary shaft 43, the other end being a free end. The direction of the rotary shaft 43 is perpendicular to the longitudinal direction of the sleeve housing 11. The end of the stripping knob 42 connected to the rotary shaft 43 is provided with a return spring 44 which abuts against the knob stripping 42 to allow the stripping button 42 to automatically return to the initial position. The free end is further provided with a projecting abutment 45 embedded in the sleeve housing 11 to prevent the free end of the stripping knob 42 from moving away from the handle housing 11, thereby maintaining the stripping 42 in the initial position when the stripping button 42 is not triggered. Preferably, the side of the stripping button 42 opposite to the first blade 41 is further provided with a plurality of arcuate stripping grooves 46 having different radii and the stripping assembly 4 can not thus blocking the wire to be stripped in order to prevent the wire from sliding to the left or to the right, and can also strip wires of different radii. In the present embodiment, the stripper button 42 is placed on one side of the handle housing 11 and is positioned adjacent to the front portion of the handle housing 11. Thus, the user can press the stripping button 42 when it catches the sleeve housing 11 with one hand to use it with one hand, pulling and stripping the wires with the other hand for simple operation. The scanning antenna 31 is placed between the second stripping element and the test button 32, so that when the handle housing 11 is caught, the scanning antenna 31 can easily come into contact with the object to be tested when the test button 320 is triggered. On the other hand, if the object is a wire to strip, the stripping operation can be performed later when it has been detected that the wire is not loaded. In the circumferential direction of the output shaft 15, the circumferential positions of the scanning antenna 31 and the operating lamp 22 are symmetrical with respect to the direction of the first axis M of the output shaft 15. D ' on the other hand, the test button 32 is placed between the scanning antenna 31 and the operating lamp 22. In the axial direction of the output shaft 15, the control switch 17 is positioned between the antenna 31 and the test button 32. Thus, when the handle housing 11 of the electric screwdriver 100 is gripped so that the scanning antenna 31 approaches the object to be tested, the test button 32 is depressed and the operating lamp 22 sends a signal depending on the structures detected. At this time, the operating lamp 22 can be directly observed by the user without turning the electric screwdriver 100. The portion of the output shaft 15 projecting from the handle housing 11 is provided with a curved hole 152. The curved hole 152 is a rotating hole with an axis perpendicular to the first axis M. Thus, when the output shaft 15 rotates about the first axis M, the inner core of the wire inserted in the curved hole 152 will be automatically folded . As a preferred solution of the stripping assembly 4 of this embodiment, a stripping assembly 5 may also be disposed on the surface of the rear end of the handle housing 11 away from the output shaft 15, such as it is shown in Figures 9-10.
    [0014] The stripping assembly 5 comprises a first stripping element fixed on the surface of the rear end of the handle housing 11 and a second stripping element rotatable relative to the handle housing 11. The first stripping element is a blade 51 and the second stripping element comprises a second blade 52 having a stripping position and a stripping button 53. The longitudinal directions of the first blade 51 and the second blade 52 are perpendicular to the longitudinal direction of the sleeve housing 11, the second blade 52 being fixedly mounted on the stripping button 53. The stripping button 53 is rotatably connected to the surface of the rear end of the handle housing 11 by a rotating shaft 54. The axial direction of the rotating shaft 54 is perpendicular to the output shaft 15, the rotating shaft 54 being further fitted by a second displacement element 55 for moving the control knob. stripping 53 to move away from the first blade 51 to a predefined position. The second displacement member 55 is a torsion spring with one end abutting against the stripping knob 53 so that the second blade 52 and the first blade 51 are in the open state. The stripping assembly 5 further comprises a stop member 56 with a generally rectangular structure. One end of the stop member 56 is rotatably connected to the side of the sleeve housing 11, the other end being engageable with a projecting stop 531 of the stripping knob 53, so that when the stripping assembly 5 is not used, the stripping button 53 can exceed the torque created by the torque spring and be positioned in a relatively close state of the first blade 51, which not only prevents the user from being injured by the stripping assembly 5, but also extends the service life of the stripping assembly 5. It should also be noted that in the stripping assembly 5, the first blade 51 and the second blade 52 can also be provided, so that corresponding, various semicircular structures with different radii. According to another preferred solution of the stripping assembly 4 of this embodiment, a stripping assembly 6 can also be arranged on a fastening frame 61 extending from the rear end of the sleeve case 11 or connected to that as shown in Figures 11-12. The fastening frame 61 is generally a U-shaped structure with an opening connected to the sleeve case 11. It should be noted that the fastening frame 61 can also be integrated with the sleeve case 11. The stripping assembly 6 comprises a first element stripping and a second stripping element. The first stripping element comprises a first blade 62 and the second stripping element comprises a second blade 63 and a trigger 64. The first blade 62 is fixedly mounted on the inside of the closed end of the U-shaped frame. The inner side is the side of the closed end of the attachment bracket 61 adjacent to the sleeve housing 11, thereby providing protection. The first blade 62 also extends in the direction perpendicular to the first axis M. The second blade 63 and the first blade 62 cooperate with each other. The second blade 63 is mounted on the trigger 64 and forms an angle between 60 and 120 degrees with the trigger 64, preferably 90 degrees. It should be noted that the second blade 63 can also be integrated in the trigger 64. The second blade 63 is positioned on the attachment frame 61, the trigger 64 being positioned outside the attachment frame 61. The assembly formed by the trigger 64 and the second blade 63 forms a rotatable connection to the attachment frame 61 perpendicular to the first axis M and the trigger 64 controls the opening or closing of the second blade 63 relative to the first blade 62 during rotation. In this embodiment, the edges of the first blade 62 and the second blade 63 are arranged in an antagonistic manner and separated from one another so as to form a scissor structure, thus obtaining a good cutting effect. It should also be noted that for the stripping assembly 6, the first blade 62 and the second blade 63 may also be correspondingly provided with various semicircular structures with different radii. Preferably, the side of the sleeve housing 11 is bent inwardly to form a housing groove 65 to accommodate the trigger 64, so that when the stripping assembly 6 is not in use, the trigger 64 may be recessed in the housing groove 65, the sleeve housing 11 can thus be grasped more comfortably. The above presentation illustrates and describes the basic principles, main features and advantages of the present invention. Those skilled in the art will appreciate that the above embodiments in no way limit the present invention. Technical solutions obtained by equivalent substitution or equivalent variations are within the scope of the present invention.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. An electric screwdriver (100) comprising: a motor (13) with a motor shaft; a power source (12) for supplying power to the motor (13); a sleeve case (11), the motor (13) and the power source (12) being housed in the sleeve case (11); an output shaft (15) at least partially protruding forwardly with respect to the sleeve housing (11), the output shaft (15) defining an insertion groove (151), the ratio of the maximum dimension of the sleeve housing (11) and the maximum dimension of the insertion groove (151) in the radial direction of the output shaft (15) being greater than or equal to 3.9 and smaller than or equal to 8; a transmission device (14) allowing the motor shaft to drive the output shaft (15) in rotation about a first axis (M); a tester assembly (3) for detecting whether an object is loaded. a control switch (17) coupled to the handle housing (11) for controlling the motor (13).
    [0002]
    An electric screwdriver according to claim 1, wherein the control switch (17) has a control portion and a portion with a maximum distance between two points of the control portion in the circumferential direction of the first axis (M) having an angle of at least 60 degrees, the control switch (17) having a substantially annular configuration surrounding the outside of the handle housing (11).
    [0003]
    3. An electric screwdriver according to claim 1, wherein the control switch (17) is rotatable about the first axis (M) relative to the sleeve housing (11).
    [0004]
    An electric screwdriver according to claim 1, wherein the tester assembly (3) comprises: an exploration antenna (31) with a leading end portion extending beyond the handle housing (11); and a test button (32) for checking whether the scanning antenna (31) has been turned on.
    [0005]
    An electric screwdriver according to claim 4, wherein the tester assembly (3) further comprises an antenna guard (33) disposed in front of the sleeve housing (11), the antenna shield (33) comprising a portion of assembly (331) for connecting the antenna shield (33) to the handle housing (11) and a probe portion (332) for housing the scanning antenna (31), the probe portion (332) projecting to the before the assembly part (331).
    [0006]
    An electric screwdriver according to claim 1, further comprising a first stripping element fixedly mounted on the sleeve housing (11) and a second stripping element with a stripping position in which the second stripping element is rotatably connected to sleeve case (11).
    [0007]
    An electric screwdriver according to claim 1, further comprising a lighting lamp for illuminating an area in front of the output shaft and a light shield disposed at the front end of the handle housing, the illumination lamp. being housed in the light shielding, the light shielding comprising a light shielding body made of light attenuating material and a window of transparent material arranged correspondingly to the illumination lamp, the light shielding being disposed between the scanning antenna and the sleeve housing.
    [0008]
    An electric screwdriver comprising: a motor (13) with a motor shaft; a sleeve housing (11) for at least housing a motor (13); an output shaft (15) at least partially protruding forwardly with respect to the sleeve housing (11), the output shaft (15) defining an insertion groove (151), the ratio of the maximum dimension of the sleeve housing (11) and the maximum dimension of the insertion groove (151) in the radial direction of the output shaft (15) being greater than or equal to 3.9 and smaller than or equal to 8; a transmission device (14) allowing the motor shaft to drive the output shaft (15) in rotation about a first axis (M); an exploration antenna (31) for detecting whether an object is loaded; a test button (32) for checking whether the scanning antenna (31) has been turned on; and a control switch (17) coupled to the handle housing (11) for controlling the motor (13).
    [0009]
    9. An electric screwdriver according to claim 8, wherein, having a annular configuration surrounding the outside of the sleeve housing (11), the control switch (17) is rotatable about the first axis (M) relative to the sleeve housing. (11).
    [0010]
    The power screwdriver according to claim 8, further comprising an antenna guard (33) disposed in front of the handle housing (11), the antenna guard (33) including an assembly portion (331) for connecting the antenna antenna protection (33) to the sleeve housing (11) and a probe portion (332) for accommodating the scanning antenna (31).
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3026333A3|2016-04-01|ELECTRIC SCREWDRIVER
    CA2728081C|2012-10-09|Trigger-operated portable electric tool
    FR2897286A3|2007-08-17|CIRCUIT CLOSURE / OPENING CONTROL MECHANISM OF AN ELECTRIC RATCHET KEY.
    FR2979565A3|2013-03-08|ELECTRIC TOOL WITH REPLACEABLE BLADE
    FR2978079A1|2013-01-25|PORTABLE ELECTROMECHANICAL TOOL
    EP2924515B1|2016-12-21|Portable winding device for a timepiece via the crown for a timepiece
    EP2054200B1|2010-11-03|Tool with device for assisting its actuation
    US8171940B2|2012-05-08|Rotary cutter assembly for a lighter
    FR2794960A1|2000-12-22|Electric hand-operated rotary mixer with integral safety stop ensuring only one tool is fitted at a time
    FR2589565A1|1987-05-07|Slide gauge | with digital display
    EP3223598A1|2017-10-04|Control method and device for powered equipment
    FR3039087A1|2017-01-27|MULTIFUNCTIONAL ELECTROPORTATIVE TOOL
    EP3223600B1|2020-04-15|Motorised cutting tool with guard
    FR2793182A3|2000-11-10|Switch blade speed regulator for knife or saw has spring tensioned or relaxed by rotating plastic knob on handle
    WO2005019840A1|2005-03-03|Current collector for a vehicle
    EP1598150A1|2005-11-23|Hammer type hand tool
    CH709423A2|2015-09-30|Winding device for the crown for a timepiece.
    CA1150817A|1983-07-26|Hands free telephone receiver holding device
    FR2947201A1|2010-12-31|Portable electric angle head screwing tool e.g. gun-type angle head screwing tool, has battery extending from front to rear along axis forming angle ranging between twenty degrees and seventy degrees, with respect to gripping direction
    FR2646764A1|1990-11-16|Device for opening shellfish, especially oysters
    FR2899833A1|2007-10-19|Manual cutting tool e.g. chisel for pruning, has connection device situated at rear end of hollow elongated body and comprising knuckle joint device using which connection cable is mechanically connected to body
    FR2824196A1|2002-10-31|Extended cable storage mechanism having cable plug/extended cable length container with fixed area multiple plugs held.
    FR2700674A1|1994-07-29|Tool serving for cutting nails, with device for retaining debris
    FR3006705A1|2014-12-12|DEVICE FOR ATTACHING A LEATHER TO A DORMANT
    FR2657764A1|1991-08-09|Device for opening oysters
    同族专利:
    公开号 | 公开日
    US20160339566A1|2016-11-24|
    US20170190026A1|2017-07-06|
    US9440339B2|2016-09-13|
    US20160089771A1|2016-03-31|
    GB2530826B|2020-12-16|
    US10272548B2|2019-04-30|
    GB201505560D0|2015-05-13|
    DE202015103607U1|2015-07-27|
    GB2530826A|2016-04-06|
    US9630302B2|2017-04-25|
    FR3026333B3|2016-11-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    KR940006711A|1992-09-18|1994-04-25|박노규|A versatile tool|
    DE19931725A1|1999-07-08|2001-01-18|Beha C Gmbh|Multi-function tool has a handle with a forward assembly in which sensors or tools can be fitted including sensors for measurement and testing purposes to reduce the amount of instruments needing to be carried|
    US20020054798A1|2000-02-10|2002-05-09|One World Technologies, Inc.|Hand-held tool containing a removably attachable object sensor|
    US20080196910A1|2000-06-20|2008-08-21|Radle Patrick J|Electrical sensing device modules for attachment to power tools and drills|
    US7051392B2|2003-10-30|2006-05-30|Armando Dominguez|Handle multi-purpose tool|
    US20090013477A1|2007-07-13|2009-01-15|Agronin Michael L|Combination tool for electrical tasks|
    US8621961B2|2009-04-28|2014-01-07|Milwaukee Electric Tool Corporation|Multi-purpose tool|
    CN102990590B|2011-09-16|2015-07-01|苏州宝时得电动工具有限公司|Electrician's screwdriver|
    WO2013037325A1|2011-09-16|2013-03-21|苏州宝时得电动工具有限公司|Electrician's screwdriver and portable hand-held tool|
    WO2013091429A1|2011-12-20|2013-06-27|杭州巨星工具有限公司|Screwdriver|
    CN203228209U|2013-04-24|2013-10-09|上海拓步企业发展有限公司|Electric tool with multi-lamp lighting structure|
    US9914176B2|2013-09-30|2018-03-13|Chervon Limited|Rotary tool|
    GB2530826B|2014-09-30|2020-12-16|Chervon Hk Ltd|Electric screwdriver|
    US10040181B2|2014-03-07|2018-08-07|Chervon Limited|Hand-held power tool with lighting element|GB2530826B|2014-09-30|2020-12-16|Chervon Hk Ltd|Electric screwdriver|
    USD849499S1|2016-10-26|2019-05-28|Music Nomad, Llc|Multi-tool for use on instruments|
    CN106425975B|2016-12-02|2018-01-19|重庆市江津区前进焊接材料厂|A kind of transmission device of the adjustable electric screw driver of cutter head angle|
    USD939915S1|2019-08-15|2022-01-04|Robert Bosch Gmbh|Screwdriver|
    法律状态:
    2016-09-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-08-10| PLFP| Fee payment|Year of fee payment: 3 |
    2018-08-13| PLFP| Fee payment|Year of fee payment: 4 |
    2019-08-15| PLFP| Fee payment|Year of fee payment: 5 |
    2020-08-12| PLFP| Fee payment|Year of fee payment: 6 |
    2021-08-12| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201410521101.3A|CN104742072B|2013-12-26|2014-09-30|Electric screwdriver|
    CN201420576231.2U|CN204171935U|2013-12-26|2014-09-30|Electric screwdriver|
    CN201410523473.XA|CN104742074B|2013-12-26|2014-09-30|Electric screwdriver|
    CN201410523472.5A|CN104742073B|2013-12-26|2014-09-30|Electric screwdriver|
    [返回顶部]