• 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:
    A torque screwdriver (100) includes a handle (110), a tubular body (120), a torque adjusting mechanism (140), a trigger mechanism (150), a drive base (160), and a torque head (140). drive (130). The torque adjusting mechanism (140) is disposed in the tubular body (120) and provides a predetermined torque value. The trigger mechanism (150) is disposed in the tubular body (120) and an end of the trigger mechanism (150) is biased by the torque control mechanism (140). The drive base (160) is disposed in the tubular body (120) and one end of the drive base (160) is urged by the other end of the trigger mechanism (150). The drive head (130) is inserted between the drive base (160) and an inner wall of the tubular body (120), a gap being formed between the drive head (160) and the tubular body (120). .
    公开号:FR3032644A3
    申请号:FR1650915
    申请日:2016-02-04
    公开日:2016-08-19
    发明作者:Chih-Ching Hsieh
    申请人:Kabo Tool Co；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a torque screwdriver. A screwdriver is a hand tool widely used in the conventional industry or everyday life, the torque screwdriver being a common type of various types of screwdrivers, which can be used to tighten external members such as screws, threaded bolts or screw nuts, etc. In general, a torque screwdriver comprises a handle, a tubular body and a drive head, the drive head being adapted to be directly connected to and drive the outer member by applying torque thereto. However, during the use of the torque screwdriver, friction between the tubular body and the drive head is easily generated, which easily causes abrasion between the tubular body and the drive head. In addition, the drive head is generally inserted into the tubular body. Therefore, when the outer member has a long arm, the drive head is easily jammed and excessive noise can be generated.
    [0002] According to a first aspect of the present invention, there is provided a torque screwdriver, characterized in that it comprises: a handle; a tubular body, one end of the tubular body 30 being connected to the handle; a torque control mechanism disposed in the tubular body and for providing a predetermined torque value; A trigger mechanism disposed in the tubular body, one end of the trigger mechanism being biased by the torque control mechanism; a drive base disposed in the tubular body and located in the other end of the tubular body, one end of the drive base being pushed by the other end of the trigger mechanism; and a drive head connected to the other end of the tubular body, one end of the drive head being inserted between the drive base and an inner wall of the tubular body, and the drive head being driven by the drive base, the drive head comprising: an insertion structure located on an outer wall of the end of the drive head, and against the inner wall of the tubular body; and a stepped structure located on the outer wall of the end of the drive head to form a gap therebetween and the inner wall of the tubular body. According to a second aspect of the present invention, there is provided a torque screwdriver, characterized in that it comprises: a handle; a tubular body, one end of the tubular body being connected to the handle; a torque control mechanism disposed in the tubular body and for providing a predetermined torque value; a triggering mechanism disposed in the tubular body, one end of the triggering mechanism being pushed by the torque adjusting mechanism; A drive base disposed in the tubular body and located in the other end of the tubular body, one end of the drive base being pushed by the other end of the trigger mechanism; A driving head connected to the other end of the tubular body, one end of the driving head being inserted between the driving base and an inner wall of the tubular body, the driving head being driven by the driving base, an interval 10 being formed between the driving head and the tubular body; and an automatic calibration mechanism located between the drive head and the drive base for aligning an axis of the drive base with an axis of the drive head. According to a third aspect of the present invention, there is provided a torque screwdriver, characterized in that it comprises: a handle; A tubular body comprising: an upper tube body connected to the handle; and a lower tube body connected to the upper tube body, a diameter of the lower tube body being greater than a diameter of the upper tube body; a torque control mechanism disposed in the upper tube body and for providing a predetermined torque value; a trigger mechanism disposed in the lower tube body, and comprising: a first ball member against the torque control mechanism; and at least two second ball members slidably urged by the first ball member, and against an inner wall of the lower tube body; a drive base disposed in the lower tube body, the first ball member and the second ball members being contained in one end of the drive base; and a drive head connected to the other end of the tubular body, one end of the drive head 10 being inserted between the drive base and the inner wall of the lower tube body, the drive head being driven by the drive base, an interval being formed between the drive head and the tubular body.
    [0003] In the second and third aspects of the present invention, the drive head may comprise: an insertion structure located on an outer wall of the end of the drive head, and against the inner wall of the body tubular; and a stepped structure located on the outer wall of the end of the drive head to form the gap therebetween and the inner wall of the tubular body.
    [0004] In the first to third aspects of the present invention, an axial length of the stepped structure may be greater than an axial length of the insertion structure and the stepped structure may be a groove.
    [0005] In the first and third aspects of the present invention, the torque screwdriver may further include an automatic calibration mechanism located between the drive head and the drive base to align an axis of the drive base. with an axis of the drive head. In the first to third aspects of the present invention, the automatic calibration mechanism may include a ball against the drive head and the drive base. The automatic calibration mechanism may further include a first hole formed on one end of the drive head for containing the ball therein, the first hole preferably comprising two bottom surfaces, an angle between the surfaces. the background is greater than or equal to 45 degrees and less than or equal to 140 degrees. The automatic calibration mechanism may further include a second hole formed on one end of the drive base to contain the ball therein. In the first and second aspects of the present invention, the tubular body may comprise an upper tube body connected to the handle, the torque adjusting mechanism being disposed therein, and a lower tube body connected to the body of the tube. upper tube, the trigger mechanism being disposed therein. A diameter of the lower tube body may be greater than a diameter of the upper tube body. Still in the first and second aspects of the present invention, the trigger mechanism may be disposed in the lower tube body and include: a first ball member against the torque control mechanism; and at least two second ball members slidably urged by the first ball member, and against an inner wall of the lower tube body.
    [0006] In the first to third aspects of the present invention, the drive base may comprise: - a containment groove, the first ball element and the second ball elements being in the containment groove; and at least two through holes formed on a side wall of the containment groove, the second bead members being against the inner wall of the lower tube body through the through holes. In the first to third aspects of the present invention, preferably, when each of the second ball members is driven into a driving position, a radial distance perpendicular to an axial line I of the tubular body, between the axial line I of the body tubular and the center C of each of the second ball elements is Ll, when each of the second ball elements is driven into a trigger position, a radial distance perpendicular to the axial line I of the tubular body between the axial line I of the tubular body and the center C of each of the second bead elements is L2, and L1 is greater than L2. In the first to third aspects of the present invention, the lower tube body may comprise at least four positioning zones and at least four trigger zones alternately arranged on the inner wall thereof. In the first to third aspects of the present invention, the lower tube body may be welded to the upper tube body. Alternatively, the lower tube body may be integral with the upper tube body.
    [0007] In the first to third aspects of the present invention, the tubular body may further comprise a sleeve member connecting the lower tube body and the drive head.
    [0008] In the first to third aspects of the present invention, the torque screwdriver may further comprise a bearing disposed between the sleeve member and the drive base. In the first to third aspects of the present invention, an axial length of the upper tube body is greater than an axial length of the lower tube body. In the first to third aspects of the present invention, the drive base may be a unidirectional ratchet for driving the drive head in rotation in a predetermined direction, with, preferably, a tooth element of the unidirectional ratchet element. which is unidirectionally engaged with a toothed portion on an inner wall of the drive head. In the first to third aspects of the present invention, the torque screwdriver may further comprise a seal disposed between the handle and the tubular body.
    [0009] To further illustrate the object of the present invention, particular embodiments will be described hereinafter with reference to the accompanying drawings. In these drawings: FIG. 1 is a schematic view of an aspect of a torque screwdriver according to an embodiment of the present invention; Figure 2 is a cross-sectional view of the torque screwdriver according to the embodiment of Figure 1; Figure 3 is an enlarged partial view of the torque screwdriver according to the embodiment of Figure 2; Figure 4 is an exploded view of the torque screwdriver according to the embodiment of Figure 1; Figure 5A is a cross-sectional view taken along line 5-5 showing a first state of the torque screwdriver of Figure 2; Figure 5B is a cross-sectional view taken along line 5-5 showing another state of the torque screwdriver of Figure 2; Figure 6 is a cross-sectional view of a torque screwdriver according to another embodiment of the present invention; Figure 7 is a cross-sectional view of a torque screwdriver according to yet another embodiment of the present invention; and Figure 8 is a cross-sectional view of the torque screwdriver driving head according to the embodiment of Figure 7.
    [0010] Figure 1 is a schematic view of an aspect of a torque screwdriver 100 according to one embodiment of the present invention. Referring to Figure 1, it can be seen that the torque screwdriver 100 comprises a handle 110, a tubular body 120 and a drive head 130. The handle 110 and the drive head 130 are connected to two ends of the tubular body 120, respectively. The user can hold the handle 110 to drive the tubular body 120 and cause the drive head 130 to rotate, so that the outer member (not shown) can be screwed to the predetermined position. FIG. 2 is a cross-sectional view of the torque screwdriver 100 according to the embodiment of FIG. 1. It can be seen that the torque screwdriver 100 further comprises a torque adjusting mechanism 140, a trigger mechanism 150, and A drive base 160. The torque control mechanism 140 is disposed in the tubular body 120 and is adapted to provide a predetermined torque value. The trigger mechanism 150 is disposed in the tubular body 120, and one end of the trigger mechanism 150 is biased by the torque adjustment mechanism 140. The drive base 160 is disposed in the tubular body 120 and is located in the other end of the tubular body 120, which is connected to the drive head 130, and one end of the drive base 160 is pushed by the other end of the trigger mechanism 150. According to the embodiment of 2, the drive base 160 is a unidirectional ratchet for driving the driving head 130 in rotation in a predetermined direction.
    [0011] In detail, the drive head 130 is connected to the other end of the tubular body 120, and the end of the drive head 130 which is connected to the tubular body 120 is inserted between the drive base 160. 5 and an inner wall of the tubular body 120, and the drive head 130 is driven by the drive base 160. The drive head 130 comprises a stepped structure 131 and an insertion structure 132, the stepped structure 131 located on the outer wall of the end 10 of the drive head 130 which is connected to the tubular body 120, and being intended to form a gap between itself and the inner wall of the tubular body 120, and the structure of insertion 132 being on an outer wall of the end of the drive head 130 which is connected to the tubular body 120, and against the inner wall of the tubular body 120. According to the embodiment of FIG. structure Fig. 131 is a groove. 3 is an enlarged partial view of the torque screwdriver 100 according to the embodiment of FIG. 2. In the embodiment of FIG. 3, an axial length of the stepped structure 131 is D1, an axial length of the structure. insertion 132 is D2, and D1 is greater than D2. The conventional torque screwdriver has the drive head without the stepped structure provided thereon, and it may generate excessive frictional force to drive the drive head regularly, and may generate a important noise during work. In addition, when the axial length of the inserted portion between the driving head and the tubular body is too long, the stress between the driving head and the tubular body according to the lever principle is excessive during the period of time. use of the torque screwdriver, so that the drive head may become easily trapped due to the deformation thereof. Therefore, the stepped structure 131 according to the embodiment can not only reduce the frictional force, but also can reduce the friction surface and the forced arm on the outer member due to the axial length D1 which is greater than the axial length D2 and due to the region inserted between the drive head 130 and the tubular body 120 which is smaller than the gap. Thus, the drive head is not likely to get stuck and the noise can be reduced. Fig. 4 is an exploded view of the torque screwdriver 100 according to the embodiment of Fig. 1. In the embodiment of Fig. 4, the tubular body 120 may comprise an upper tube body 121, a lower tube body 122 and a sleeve member 123. The upper tube body 121 is connected to the handle 110 and the torque adjusting mechanism 140 is disposed therein. The lower tube body 122 is connected to the upper tube body 121 and the trigger mechanism 150 is disposed therein, the lower tube body being welded to the upper tube body in the embodiment of Figure 4. The sleeve member 123 connects the lower tube body 122 and the drive head 130. The lower tube body 122 comprises a first connecting structure 122a provided on the inner wall thereof and the sleeve member 123 comprises a second connecting structure 123a provided on the outer wall thereof, the lower tube body 122 being connected to the sleeve member 123 by the connection of the first connecting structure 122a and the second connecting structure 123a. The drive base 160 may be rotated correspondingly to the sleeve member 123. One end of the drive head 130 is tube-shaped and the end of the drive head 130 may be inserted between the drive base 160 and the tubular body 120. A pivoting ring 133 is disposed between the drive head 130 and the sleeve member 123. The projecting insertion structure 132 of the drive head 130 lies against the inner wall of the sleeve member 123, and the gap 10 is formed between the recessed step structure 131 and the sleeve member 123 of the tubular body 120. The drive base 160 is a unidirectional ratchet, a tooth element 162 of the unidirectional ratchet element being unidirectionally engaged with a toothed portion 134 on the inner wall of the drive head 130, so that the drive head 130 can be e trained. In addition, the torque screwdriver 100 may further include a bearing 161 disposed between the sleeve member 123 and the drive base 160. Accordingly, rotation between the drive head 160 and the sleeve member 123 may be Stably and regularly, such that the friction between the torque screwdriver elements 100 can be avoided and the service life of the torque screwdriver 100 can be prolonged. According to the embodiment of Figures 2 and 4, the torque adjusting mechanism 140 comprises an adjusting lever 141, a resilient member 142, a sliding member 143 and a pushing member 144. An end of the adjusting lever 141 is connected to the handle 110, so that the handle 110 can drive the torque adjusting mechanism 140. The elastic member 142 can surround the adjustment lever 141, one end of the elastic member 142 being connected to the sliding member 143, and the sliding member 143 can move axially along the adjusting lever 141. The compression of the elastic member 142 can be adjusted by the axial displacement of the sliding member 143 to change the value of predetermined torque of the torque adjusting mechanism 140. The pushing member 144 is connected against the other end of the elastic member 142, and is connected against the mechanical In FIG. 4, it can be seen that the triggering mechanism 150 comprises a first ball element 151 and at least two second ball members 152, the first ball element 151 and the second ball elements 152 being contained in the ball member 151. end of the drive base 160. The first ball element 151 is against the torque adjusting mechanism 140, i.e. the first ball element 151 is pushed by the elastic member 142 via The second ball members 152 are slidably urged by the first ball member 151, and against the inner wall of the lower tube body 122. According to the embodiment of FIG. trigger 150 comprises three second ball elements 152.
    [0012] In addition, the drive base 160 may further include a containment groove 163 and at least two through holes 164. In detail, the first ball member 161 and the second ball members 152 are in the containment groove 163. The through holes 164 are formed on the side wall of the containment groove 163, the second ball members 152 being against the inner wall of the lower tube body 122 through the through holes 164. According to the embodiment of the invention, the 3032644 4, the drive base 160 includes three through holes 164. FIGS. 5A and 5B are cross-sectional views taken along the line 5-5 showing two states of the torque screwdriver 100 of FIG. 5A, when each of the second ball members 152 is moved into a driving position, a radial distance perpendicular to an axial line I of the lower tube body 122 of the body 120, between the axial line I of the lower tube body 122 and the center C of each of the second ball members 152, is L1. In FIG. 5B, when each of the second ball members is brought into a triggering position, a radial distance perpendicular to the axial line of the tubular body between the axial line of the tubular body and the center of each of the second ball members is L2, and L1 is greater than L2. Therefore, when the torque screwdriver 100 applies torque to the outer member and the torque value is greater than the predetermined torque value, the second ball members 152 will be pushed from the drive position to the trigger position. . In detail, the lower tube body 122 may comprise at least four positioning zones 122a and at least four trigger zones 122b located on the inner wall thereof; according to the embodiment of FIGS. 5A and 5B the lower tube body 122 comprising six positioning zones 122a and six triggering zones 122b located on the inner wall thereof. The positioning zones 122a are axial grooves of the lower tube body 122, and the positioning zones 122a and the triggering zones 122b are alternately arranged on the inner wall of the lower tube body 122, and each of the zones 122a is connected to each of the trigger zones 122b which are adjacent thereto. As shown in FIG. 5A, when the second ball members 152 are in the driving position, the second ball members 152 are against the positioning zones 122a through the through holes 164. When the torque screwdriver 100 is driven the drive base 160 can be rotated through the tubular body 120, and the drive head 130 can be driven to apply torque to the outer member; at the same time, the torque adjusting mechanism 140 applies pressure to the first ball element 151. The second ball members 152 are pushed by the pressure applied by the torque adjusting mechanism 140, indirectly via the first element ball 151, so that the second ball members 152 can be positioned in the containment groove 163 and against the positioning zones 122a through the through holes 164. When the torque value applied to the outer member is greater than the predetermined torque value, the feedback torque value from the drive head 130 is greater than the pressure exerted on the second ball members 152, and the second ball members 152 are pushed from the positioning zones 122a to the drive zones trigger 122b. Thus, the drive base 160 and the drive head 130 can not be connected to the tubular body 120. Therefore, excessive torque applied to the outer member can be avoided. In addition, the number of second ball members 152 may be two, three or more than three, the number of positioning zones 122a and the number of trigger zones 122b may be varied to accommodate the number of second ball elements. 152, and the triggering areas 122b can also be arranged in an axial projecting shape, and are not limited to the foregoing description. The trigger mechanism 150 is disposed in the upper tube body 121, and the second ball members 152 are against the inner wall of the upper tube body, so that a diameter of the lower tube body 122 may be greater than to a diameter of the upper tube body 121. In addition, the upper tube body 121 is intended to contain the torque adjustment mechanism 140, so that an axial length of the upper tube body 121 may be greater than An axial length of the lower tube body 122. Therefore, the weight and volume of the torque screwdriver 100 can be reduced and the manufacturing cost can also be reduced.
    [0013] The torque screwdriver 100 may further include a seal 101 disposed between the handle 110 and the tubular body 120. More specifically, the seal 101 is disposed between the adjustment lever 141 located in the tubular body 120 and the handle 110. Therefore, it is advantageous for the positioning and the connection between the handle 110 and the adjustment lever 141. FIG. 6 is a cross-sectional view of a torque screwdriver 100 according to another embodiment of FIG. embodiment of the present invention. In Figure 6, the lower tube body 122 is in one piece with the upper tube body 121. Therefore, the assembly and manufacture of the torque screwdriver 100 can be simplified and the manufacturing cost can also be reduced. to be reduced. According to the embodiment of Figure 6, the elements and arrangements thereof in the torque screwdriver 100 are the same as in the foregoing description and will not be described again here. Figure 7 is a cross-sectional view of a torque screwdriver 100 according to yet another embodiment of the present invention. In Figure 7, it can be seen that the torque screwdriver 100 comprises a handle 110, a tubular body 120, a torque adjusting mechanism 140, a trigger mechanism 150, a drive base 160, a drive head 130 and an automatic calibration (or positioning) mechanism 170, the arrangements of the handle 110, the tubular body 120, the torque adjusting mechanism 140, the trigger mechanism 150, the drive base 160 and the drive head 130 being the same as in the previous description and will not be described again here. In particular, the automatic calibration mechanism 170 is located between the drive head 130 and the drive base 160 to align an axis of the drive base 160 with an axis of the drive head 130. Thus, the inclination of the drive base 160 during use can be prevented so as to ensure engagement between the tooth member 162 of the drive base 160 and the toothed portion 134 on the inner wall of the head 130.
    [0014] In detail, the automatic calibration mechanism 170 includes a ball 171 against the drive head 130 and the drive base 160, so that the axis of the drive base 160 can be aligned with the axis. 3032644 18 of the drive head 130 through the ball 171. Therefore, the inclination of the drive base 160 during use can be prevented so as to ensure the engagement between the element tooth 5 162 of the drive base 160 and the toothed portion 134 on the inner wall of the drive head 130. In addition, the automatic calibration mechanism 170 may further comprise a first hole (or groove) 172 and a second hole (or groove) 173, the first hole 172 being formed on one end of the drive head 130 to contain the ball 171 therein, and the second hole 173 being formed on one end of the base 160 drive to contain the ball 171 in this right here. In other words, the two corresponding ends of the ball 171 are against the first hole 172 and the second hole 173, respectively. Therefore, the ball 171 can align the drive base 160 and the drive head 130 stably. Figure 8 is a cross-sectional view of the driving head 130 of the torque screwdriver 100 according to the embodiment of Figure 7. In Figure 8, the first hole 172 comprises two bottom surfaces 172a, an angle A between the bottom surfaces 172a being greater than or equal to 45 degrees and less than or equal to 140 degrees. Ball 171 may be contained in first hole 172 and against bottom surfaces 172a. This is advantageous for stably aligning the drive base 160 and the drive head 130, and increases the alignment accuracy. In addition, the second hole 173 may also include two bottom surfaces, and the angle between the bottom surfaces may be equal to the angle A of the first 172, and will not be described again here.
    权利要求:
    Claims (23)
    [0001]
    CLAIMS1 - Torque screwdriver (100), characterized in that it comprises: - a handle (110); - a tubular body (120), one end of the tubular body (120) being connected to the handle (110); - a torque adjusting mechanism (140) disposed in the tubular body (120) and for providing a predetermined torque value; a trigger mechanism (150) disposed in the tubular body (120), one end of the trigger mechanism (150) being biased by the torque adjusting mechanism (140); a drive base (160) disposed in the tubular body (120) and located in the other end of the tubular body (120), one end of the drive base (160) being pushed by the other end; the trigger mechanism (150); and - a drive head (130) connected to the other end of the tubular body (120), one end of the drive head (130) being inserted between the drive base (160) and an inner wall of the tubular body (120), and the drive head (130) being driven by the drive base (160), the drive head (130) comprising: - an insertion structure (132) lying on a outer wall of the end of the drive head (130), and against the inner wall of the tubular body (120); and a stepped structure (131) located on the outer wall of the end of the drive head (130) to form a gap therebetween and the inner wall of the tubular body (120).
    [0002]
    2 - Torque screwdriver (100), characterized in that it comprises: 5 - a handle (110); a tubular body (120), one end of the tubular body (120) being connected to the handle (110); a torque adjusting mechanism (140) disposed in the tubular body (120) for providing a predetermined torque value; a trigger mechanism (150) disposed in the tubular body (120), one end of the trigger mechanism (150) being biased by the torque adjusting mechanism (140); A drive base (160) disposed in the tubular body (120) and located in the other end of the tubular body (120), one end of the drive base (160) being pushed by the other end of the trigger mechanism (150); A driving head (130) connected to the other end of the tubular body (120), one end of the driving head (130) being inserted between the driving base (160) and an inner wall of the tubular body (120), the drive head (130) being driven by the drive base (160), a gap being formed between the drive head (130) and the tubular body (120); and an automatic calibration mechanism (170) located between the drive head (130) and the drive base (160) for aligning an axis of the drive base (160) with an axis of the drive head (160). drive (130). 3032644 21
    [0003]
    3 - Torque screwdriver (100), characterized in that it comprises: - a handle (110); a tubular body (120) comprising: - an upper tube body (121) connected to the handle (110); and - a lower tube body (122) connected to the upper tube body (121), a diameter of the lower tube body (122) being greater than a diameter of the upper tube body (121); - a torque adjusting mechanism (140) disposed in the upper tube body (121) and for providing a predetermined torque value; a triggering mechanism (150) disposed in the lower tube body (122), and comprising: - a first ball element (151) against the torque adjusting mechanism (140); and - at least two second ball members (152) slidably urged by the first ball member (151), and against an inner wall of the lower tube body (122); a drive base (160) disposed in the lower tube body (122), the first ball element (151) and the second ball members (152) being contained in one end of the drive base (160). ; and a driving head (130) connected to the other end of the tubular body (120), one end of the driving head (130) being inserted between the drive base (160) and the inner wall of the lower tube body (122), the drive head (130) being driven by the drive base (160), a gap being formed between the drive head (130) and the tubular body (120); ).
    [0004]
    4 - Torque screwdriver (100) according to any of claims 2 and 3, characterized in that the drive head (130) comprises: an insertion structure (132) located on an outer wall of the end of the drive head (130), and against the inner wall of the tubular body (120); and a stepped structure (131) located on the outer wall of the end of the drive head (130) to form the gap therebetween and the inner wall of the tubular body (120).
    [0005]
    Torque screwdriver (100) according to one of claims 1 to 4, characterized in that an axial length of the stepped structure (131) is greater than an axial length of the insertion structure (132). .
    [0006]
    6 - Torque screwdriver (100) according to any one of claims 1, 4 and 5, characterized in that the stepped structure (131) is a groove.
    [0007]
    7 - Torque screwdriver (100) according to claim 1 or 3 or any one of claims 4 to 6 taken in dependence on claim 1 or 3, characterized in that it further comprises an automatic calibration mechanism (170) located between the drive head (130) and the drive base (160) for aligning an axis of the drive base (160) with an axis of the drive head (130). 30
    [0008]
    8 - Torque screwdriver (100) according to claim 2 or 7, characterized in that the automatic calibration mechanism (170) comprises a ball 3032644 23 (171) against the drive head (130) and the training base (160).
    [0009]
    The torque screwdriver (100) according to claim 8, characterized in that the automatic calibration mechanism (170) further comprises a first hole (172) formed on one end of the drive head (130) for holding the ball (171) therein, the first hole (172) preferably comprising two bottom surfaces (172a), an angle between the bottom surfaces (172a) being greater than or equal to 45 degrees and lower or equal to 140 degrees.
    [0010]
    Torque screwdriver (100) according to claim 9, characterized in that the automatic calibration mechanism (170) further comprises a second hole (173) formed on one end of the drive base (160) for holding the ball (171) in it.
    [0011]
    11 - Torque screwdriver (100) according to claim 1 or 2 or any one of claims 4 to 10 taken in dependence on claim 1 or 2, characterized in that the tubular body (120) comprises: a body of upper tube (121) connected to the handle (110), the torque adjusting mechanism (140) being disposed therein; and a lower tube body (122) connected to the upper tube body (121), the trigger mechanism (150) being disposed therein.
    [0012]
    Torque screwdriver (100) according to claim 11, characterized in that a diameter of the lower tube body (122) is greater than a diameter of the upper tube body (121). 3032644 24
    [0013]
    Torque screwdriver (100) according to one of claims 11 and 12, characterized in that the triggering mechanism (150) is arranged in the lower tube body (122) and comprises: - a first ball element ( 151) against the torque adjusting mechanism (140); and at least two second ball members (152) slidably urged by the first ball member (151), and against an inner wall of the lower tube body (122).
    [0014]
    14 - Torque screwdriver (100) according to claim 3 or 13, characterized in that the drive base (160) comprises: a containment groove (163), the first ball element (151) and the second ball elements (152) lying in the containment groove (163); and at least two through holes (164) formed on a side wall of the containment groove (163), the second ball members (152) being against the inner wall of the lower tube body (12) through the through holes (164).
    [0015]
    15 - Torque screwdriver (100) according to claim 3 or 14, characterized in that, when each of the second ball elements (152) is driven into a driving position, a radial distance perpendicular to an axial line (I) of the tubular body (120), between the axial line (I) of the tubular body (120) and the center (C) of each of the second ball elements (152) is L1, when each of the second ball elements (152) is driven. in a triggering position, a radial distance perpendicular to the axial line (I) of the tubular body (120) between the axial line (I) of the tubular body (120) and the center (C) of each of the second ball elements (152) is L2, and L1 is greater than L2.
    [0016]
    Torque screwdriver (100) according to one of claims 3, 14 or 15, characterized in that the lower tube body (122) comprises at least four positioning zones (122a) and at least four trigger (122b) arranged alternately on the inner wall thereof.
    [0017]
    17 - Torque screwdriver (100) according to any of claims 3 and 11 to 16, characterized in that the lower tube body (122) is welded to the upper tube body (121).
    [0018]
    A torque screwdriver (100) according to any one of claims 3 and 11 to 16, characterized in that the lower tube body (122) is integral with the upper tube body (121).
    [0019]
    Torque screwdriver (100) according to one of Claims 3 and 11 to 18, characterized in that the tubular body (120) further comprises a sleeve element (123) connecting the lower tube body (122). and the drive head (130).
    [0020]
    The torque screwdriver (100) according to claim 19, further comprising a bearing (161) disposed between the sleeve member (123) and the drive base (160).
    [0021]
    Torque screwdriver (100) according to one of Claims 3 and 11 to 20, characterized in that an axial length of the upper tube body (121) is greater than an axial length of the lower tube body ( 122).
    [0022]
    22 - Torque screwdriver (100) according to any one of claims 1 to 21, characterized in that the drive base (160) is a ratchet 3032644 26 unidirectional for driving the driving head (130) in rotation in a predetermined direction, preferably with a tooth element of the unidirectional ratchet element which is unidirectionally engaged with a toothed portion on an inner wall of the drive head.
    [0023]
    23 - Torque screwdriver (100) according to any one of claims 1 to 22, characterized in that it further comprises a seal (101) disposed between the handle (110) and the tubular body (120) . 10
    类似技术:
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    FR2841492A1|2004-01-02|Limited torque tool, especially a wrench, has adjustable interlocking components on body and handle for setting required torque level
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    同族专利:
    公开号 | 公开日
    US20160236335A1|2016-08-18|
    DE102016101177A1|2016-08-18|
    TW201630692A|2016-09-01|
    TWM510821U|2015-10-21|
    TW201630691A|2016-09-01|
    JP3203875U|2016-04-21|
    CN205521116U|2016-08-31|
    TWI606896B|2017-12-01|
    FR3032644B3|2017-03-10|
    TWI606897B|2017-12-01|
    DE202016009045U1|2021-09-02|
    TWI606898B|2017-12-01|
    TW201630693A|2016-09-01|
    引用文献:
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    US1564342A|1923-03-03|1925-12-08|Wodack Electric Tool Corp|Portable power-driven tool|
    US2854831A|1956-09-11|1958-10-07|Milwaukee Electric Tool Corp|Torque adjustment for power driven tools|
    US3693381A|1971-02-12|1972-09-26|Hill Rockford Co|Torque responsive clutch|
    GB2227197A|1989-01-12|1990-07-25|Lin Schih Chang|Magazine wrench|
    US5199508A|1991-08-01|1993-04-06|Kabushiki Kaisha Miyanaga|Rotary hammer drill|
    DE19527193A1|1995-07-26|1997-01-30|Hilti Ag|Screwdriver|
    US6092279A|1997-07-09|2000-07-25|Shoup; Kenneth E.|Bearing puller|
    TW392566U|1999-04-16|2000-06-01|Huang Rung Hua|Improved saw stem structure|
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    TW563612U|2003-03-07|2003-11-21|Jang-Ying Chen|Improved structure for screwdriver|
    WO2005077603A1|2004-02-11|2005-08-25|Snap-On Incorporated|T-handled torque-limiting driver|
    US7343824B2|2006-06-20|2008-03-18|Bradshaw Medical, Inc.|Variable torque-limiting driver|
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    TWM451216U|2012-11-19|2013-04-21|Kabo Tool Co|Torque screwdriver with increased torque and maintained torque precision|
    TWI504484B|2014-02-11|2015-10-21|US10213270B2|2015-12-02|2019-02-26|Lomack Industrial Co. Ltd.|Small disposable torque limiting driving tool with rubber grip|
    TWI600502B|2016-04-29|2017-10-01|優鋼機械股份有限公司|Torque sleeve socket assembly|
    TWI622467B|2016-12-07|2018-05-01|One-way fixed torque screwdriver|
    TWI623390B|2017-05-26|2018-05-11|Multi-section torque screwdriver|
    TWI638708B|2017-09-07|2018-10-21|銳泰精密工具股份有限公司|Torque adjustable one-way screwdriver|
    CN107584449B|2017-09-26|2019-03-15|北京无线电测量研究所|A kind of adjusting torque switching device for screwing up threaded connector|
    TWI637822B|2018-03-07|2018-10-11|特典工具股份有限公司|Torque driver tool|
    TWI683731B|2019-05-21|2020-02-01|美之嵐機械工業有限公司|Mechanical gas/electric screwdriver torque display device|
    CN111546275A|2020-06-11|2020-08-18|苏州市职业大学|Torque-limiting screwdriver|
    法律状态:
    2017-01-27| PLFP| Fee payment|Year of fee payment: 2 |
    2018-01-03| PLFP| Fee payment|Year of fee payment: 3 |
    2020-01-22| PLFP| Fee payment|Year of fee payment: 5 |
    2021-02-02| PLFP| Fee payment|Year of fee payment: 6 |
    2022-02-14| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    US201562116570P| true| 2015-02-16|2015-02-16|
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