• 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:
    The invention relates to a socket wrench which comprises a key body (30), a ratchet wheel (31) and a positioning ring (32). The ratchet wheel (31) has a drive hole (311) and a cylindrical rim (313) extending on one side of the key body (30). The cylindrical rim (313) defines, in an outer periphery thereof, at least one opening (314) communicating with the driving hole (311). The positioning ring (32) is mounted around the cylindrical rim (313) and includes a central bore (321) and at least one projection (323) projecting radially from an inner wall of the central bore (321). of the positioning ring (32). The projection (323) projects from a wall of the drive hole (311) through the opening (314) to position a socket.
    公开号:FR3015914A3
    申请号:FR1456845
    申请日:2014-07-16
    公开日:2015-07-03
    发明作者:Shih-Chieh Liu
    申请人:Chen Yi Fu；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a socket wrench 5 and, more particularly, to a retaining mechanism for a socket wrench. As shown in Figures 1 and 2, a conventional socket wrench 10 includes a ratchet wheel 11 disposed in a head of the socket wrench 10. The ratchet wheel 11 has a polygonal drive hole 111 defined therethrough. this. The ratchet wheel 11 has a ring-shaped groove 112 defined in an inner periphery of the drive hole 111 for receiving a resilient C-ring 12. A bushing 20 defines a core 201 having a polygonal shape at a first end and a a plurality of slots 202 spaced apart in an outer periphery of the core 201. Therefore, the bushing 20 can be positioned in the drive hole 111 by the C-ring 12 pinching the notches 202 of the bushing 20 so as to 20 prevent the sleeve 20 from detaching from the socket wrench 10. However, the conventional socket wrench 10 has certain disadvantages. For example, the C-ring can be elastically extended while the bushing 20 is actuated, so that the bushing 20 can not be firmly held in the drive hole 111 of the ratchet wheel 11. In addition, elastic fatigue of the C-ring can occur during long-term use. The present invention aims to mitigate and / or overcome the disadvantages of the conventional socket wrench. The main object of the present invention is to provide an improved socket wrench.
    [0002] The present invention relates to a socket wrench, characterized in that it comprises: a key body; a ratchet wheel received in the key body, the ratchet wheel having a driving hole and a cylindrical rim extending on one side of the key body, the cylindrical rim of the ratchet wheel defining in an outer periphery therein, at least one opening communicating with the driving hole; and a positioning ring mounted around the cylindrical flange of the ratchet wheel, and having a central bore and at least one projection projecting radially from an inner wall of the central bore of the positioning ring, the projection projecting from a wall of the drive hole through the opening of the ratchet wheel. The ratchet drive hole may be hexagonal and define a plurality of inner corners.
    [0003] The opening of the ratchet wheel can be set in one of the inner corners of the ratchet drive hole. The socket wrench according to the present invention may further comprise a C-ring, the cylindrical rim of the ratchet wheel having an annular groove in the outer periphery thereof and the C-ring being positioned in the retaining groove. to retain the positioning ring. The locating ring may define a protrusion extending axially from a side opposite the key body. The positioning ring may have a resilient element disposed on the inner wall of the central bore of the positioning ring, opposite the projection, the elastic member being sandwiched between the outer periphery of the cylindrical rim of the ratchet wheel and the inner wall of the central bore of the positioning ring. The locating ring may have a recess in the inner wall of the central bore, opposite the protrusion, for receiving the elastic member.
    [0004] The ratchet wheel drive hole can define twelve equidistant inner corners. The ratchet wheel may include another aperture, the two apertures being defined in two of the twelve interior corners of the ratchet wheel.
    [0005] The positioning ring may have another projection, the two protrusions projecting from the wall of the drive hole through the opening of the ratchet wheel. The protrusion may be detachable from the inner wall of the central bore of the locating ring. The locating ring may have a receiving groove in the inner wall of the central bore of the locating ring to receive the protrusion. Other advantages and advantages of the present invention will become more apparent from the following detailed description taken with reference to the accompanying drawings. In these drawings: FIGS. 1 and 2 show the prior state of the art; Figure 3 is a fragmentary exploded perspective view of a socket wrench according to a first embodiment of the present invention; Figure 4 is a perspective view of the socket wrench shown in Figure 3; Figure 5 is a partial sectional view of the socket wrench shown in Figure 4; Figure 6 is a sectional view of the socket wrench taken along the line VI-VI of Figure 5; Figures 7 to 9 illustrate an operation of the socket wrench shown in Figure 5; Figure 10 is a fragmentary exploded perspective view of a socket wrench according to a second embodiment of the present invention; Figure 11 is a perspective view of the socket wrench shown in Figure 10; Figure 12 is a partial sectional view of the socket wrench shown in Figure 11; Figure 13 is a sectional view of the socket wrench taken along the line XIII-XIII of Figure 12; Figure 14 illustrates an operation of the socket wrench shown in Figure 12; 15 and 16 illustrate a bushing positioned in a ratchet drive hole; FIG. 17 is a partial exploded perspective view of a socket wrench according to a third embodiment of the present invention. invention; and Fig. 18 is another fragmentary exploded perspective view of a socket wrench shown in Fig. 7, with a retaining block being detached from a recess of a positioning ring.
    [0006] Referring to Figures 3 to 6, it can be seen that a socket wrench according to a first embodiment of the present invention comprises a key body 30, a ratchet wheel 31 and a positioning ring 32. The ratchet wheel 31 is received in the key body 30. The ratchet wheel 31 has a drive hole 311 and a cylindrical rim 313 extending on one side of the key body 30. The cylindrical rim 313 of the wheel Ratchet 31 defines, in an outer periphery thereof, an opening 314 communicating with the drive hole 311 of the ratchet wheel 31. The positioning ring 32 is mounted around the cylindrical rim 313 of the ratchet wheel 31 In particular, the locating ring 32 has a central bore 321 and a protrusion 323 protruding radially from an inner wall of the central bore 321 of the locating ring 32. As shown in Figures 4 to 6, the protrusion 323 is projected from a wall of the drive hole 311 through the opening 314 of the ratchet wheel 31. In the first embodiment of the present invention, the drive hole 311 of the ratchet wheel 31 is hexagonal and defines a plurality of inner corners 312, as shown in FIG. 4. The opening 314 of the ratchet wheel 31 is defined in one of the inside corners 312 of the drive hole 311 of the ratchet wheel 31, so that that the projection 323 can project from the respective corner 312. Referring to Figures 3 and 4, it can be seen that the socket key of the first embodiment further comprises a C 316 ring. the cylindrical flange 313 of the ratchet wheel 31 has an annular groove 315 in the outer periphery thereof. The C-ring 316 is positioned in the retaining groove 315 to retain the locating ring 32. As shown in FIG. 4, the locating ring 32 has a protrusion 322 extending axially from a side opposite the key body 30 to be pushed inward by a user. As shown in FIG. 3, and with reference to FIGS. 5 and 6, the positioning ring 32 has a resilient member 33 disposed on the inner wall of the central bore 321 of the locating ring 32. , the opposite of the projection 323, the elastic element 33 being sandwiched between the outer periphery of the cylindrical flange 313 of the ratchet wheel 31 and the inner wall of the central bore 321 of the positioning ring 32 of The positioning ring 32 has a recess 324 in the inner wall of the central bore 321, opposite the projection 323, to receive the element. 33. Referring to Figs. 7 to 9, it can be seen that the socket wrench is applied to position a socket 40. The socket 40 has a polygonal core 401 and a plurality of notches 402 spaced apart in a socket. outskirts outside In operation, the protrusion 323 can be pushed back into the opening 314 of the ratchet wheel 31 by pushing the positioning ring 32 inwards, so that the sleeve 40 can be inserted into the opening. the driving hole 311 of the ratchet wheel 31. Upon release of the positioning ring 32, the projection 323 is positioned in the respective notch 402 by the elastic return force of the elastic member 33, so as to retain the sleeve 40 in the drive hole 311 of the ratchet wheel 31 and then rotate a bolt 50.
    [0007] Referring to Figures 10 to 13, it can be seen that a socket wrench according to a second embodiment of the present invention comprises a key body 60, a ratchet wheel 61 and a locating ring 62. The ratchet wheel 61 is received in the key body 60.
    [0008] The ratchet wheel 61 has a driving hole 611 and a cylindrical rim 613 extending on one side of the key body 60. The driving hole 611 of the ratchet wheel 61 has a hexagonal double configuration and defines a plurality an odd number of interior corners 612 and a plurality of even numbered inner corners 612a. The cylindrical flange 613 of the ratchet wheel 61 defines, in an outer periphery thereof, two openings 614, 614a communicating with the driving hole 311 of the ratchet wheel 31. As shown in FIG. apertures 614, 614a are respectively defined in respective odd-numbered inner corners 612 and respective even-number inner corners 612a. The locating ring 62 is mounted around the cylindrical rim 613 of the ratchet wheel 61. In particular, the locating ring 62 has a central bore 621 and two parallel projections 623, 623a projecting radially from an inner wall of the housing. central bore 621 of the locating ring 62. The two protrusions 623, 623a project from a wall of the driving hole 611 respectively through the two openings 614, 614a of the ratchet wheel 61, as shown in FIG. Figures 11 to 13.
    [0009] Referring to Figures 10 and 11, it can be seen that the socket wrench of the second embodiment further comprises a C 616 ring. The cylindrical rim 613 of the ratchet wheel 61 has an annular groove 615 in the outer periphery of it.
    [0010] The C-ring 616 is positioned in the retaining groove 615 to retain the locating ring 62. As shown in Figure 11, the locating ring 62 has a protrusion 622 extending axially from a side opposite the body. key 60.
    [0011] As shown in FIG. 10 and FIGS. 12 and 13, the locating ring 62 has an elastic member 63 disposed on the inner wall of the central bore 621 of the locating ring 62, opposite the two protrusions 623, 623a, the elastic member 63 being sandwiched between the outer periphery of the cylindrical flange 613 of the ratchet wheel 61 and the inner wall of the central bore 621 of the positioning ring 62 so as to provide an elastic restoring force for the locating ring 62. The locating ring 62 has a recess 624 in the inner wall of the central bore 621 to receive the elastic member 63. Figures 14 to 16 illustrate an operation of the second mode socket wrench embodiment, which is similar to the first embodiment, except that the position of the sleeve 40 in the driving hole 611 of the ratchet wheel 61 can be chosen. In particular, the bushing 40 can be selectively positioned in a first position, wherein the bushing 40 is limited by a projection 623, as shown in Fig. 15, and a second position, in which the bushing 40 is limited by Another projection 623a, as shown in Figure 16. Referring now to Figures 17 and 18, it can be seen that a socket wrench according to a third embodiment of the present invention comprises a key body 70 a ratchet wheel 71 and a locating ring 72. The ratchet wheel 71 is received in the key body 70. The ratchet wheel 71 has a drive hole 711 and a cylindrical rim 713 extending on one side. of the key body 70. The cylindrical flange 713 of the ratchet wheel 71 defines, in an outer periphery thereof, an opening 714 communicating with the driving hole 711 of the ratchet wheel 71. The positioning ring 72 is mounted around the cylindrical flange 713 of the ratchet wheel 71. The positioning ring 72 has a central bore 721 and a projection 73 projecting radially from an inner wall of the central bore 721 of the positioning ring 72. projection 73 projects from a wall of the drive hole 711 through the opening 714 of the ratchet wheel 71. More particularly, the projection 73 is detachable from the inner wall of the central bore 721 of the The positioning ring 72 has a receiving groove 723 in the inner wall of the central bore 721 of the locating ring 72 to receive the projection 73. In the third embodiment of the present invention, the driving hole 711 of the ratchet wheel 71 is hexagonal and defines a plurality of inside corners 712. The opening 714 of the ratchet wheel 71 is defined in one of the inside corners 712 of the driving hole. 711 of the ratchet wheel 71, so that the projection 73 can project from the respective corner 712. Referring to Figure 17, it can be seen that the socket wrench of the third embodiment further comprises a C-ring 716. In addition, the cylindrical rim 713 of the ratchet wheel 71 has an annular groove 715 in the outer periphery thereof. The C-ring 716 is positioned in the retaining groove 715 to retain the locating ring 72. As shown in Figure 17, the locating ring 72 has a protrusion 722 extending axially from a side opposite the body. In addition, the positioning ring 72 has a resilient element 74 disposed on the inner wall of the central bore 721 of the positioning ring 72, opposite the projection 73, the elastic element 74 being sandwiched between the outer periphery of the cylindrical rim 713 of the ratchet wheel 71 and the inner wall of the central bore 721 of the locating ring 72 so as to provide an elastic return force for the locating ring 72. The positioning ring 72 has a recess 724 in the inner wall of the central bore 721, the opposite of the projection 73, for receiving the elastic member 74.
    权利要求:
    Claims (9)
    [0001]
    CLAIMS1 - Socket wrench, characterized in that it comprises: - a key body (30, 60, 70); a ratchet wheel (31, 61, 71) received in the key body (30, 60, 70), the ratchet wheel (31, 61, 71) having a drive hole (311, 611, 711) and a cylindrical flange (313, 613, 713) extending on one side of the key body (30, 60, 70), the cylindrical flange (313, 613, 713) of the ratchet wheel (31, 61, 71). defining, in an outer periphery thereof, at least one opening (314, 614, 714) communicating with the drive hole (311, 611, 711); and a positioning ring (32, 62, 72) mounted around the cylindrical rim (313, 613, 713) of the ratchet wheel (31, 61, 71), and having a central bore (321, 621, 721) and at least one protrusion (323, 623, 73) protruding radially from an inner wall of the central bore (321, 621, 721) of the locating ring (32, 62, 72), the protrusion (323 , 623, 723) projecting from a wall of the drive hole (311, 611, 711) through the opening (314, 614, 714) of the ratchet wheel (31, 61, 71).
    [0002]
    2 - socket wrench according to claim 1, characterized in that the drive hole (311, 611, 711) of the ratchet wheel (31, 61, 71) is hexagonal and defines a plurality of inner corners (312 , 612, 712).
    [0003]
    3 - socket wrench according to claim 2, characterized in that the opening (314, 614, 714) of the ratchet wheel (31, 61, 71) is defined in one of the inner corners (312, 612, 712) of the drive hole (311, 611, 711) of the ratchet wheel (31, 61, 71).
    [0004]
    4 - socket wrench according to claim 1, characterized in that it further comprises a C-ring (316, 616, 716), the cylindrical flange (313, 613, 713) of the ratchet wheel (31, 61, 71) having an annular groove (315, 615, 715) in the outer periphery thereof and the C-ring (316, 616, 716) being positioned in the retaining groove (315, 615, 715) to retain the positioning ring (32, 62, 72).
    [0005]
    5 - socket wrench according to claim 1, characterized in that the positioning ring (32, 62, 72) defines a projection (322, 622, 722) extending axially from a side opposite the body key (30, 60, 70).
    [0006]
    6 - socket wrench according to claim 1, characterized in that the positioning ring (32, 62, 72) has a resilient element (33, 63, 74) disposed on the inner wall of the central bore (321 621, 721) of the locating ring (32, 62, 72) opposite the protrusion (323, 623, 73), the elastic member (33, 63, 74) being sandwiched between the outer periphery of the cylindrical rim (313, 613, 713) of the ratchet wheel (31, 61, 71) and the inner wall of the central bore (321, 621, 721) of the locating ring (32, 62 , 72).
    [0007]
    7 - socket wrench according to claim 6, characterized in that the positioning ring (32, 62, 72) has a recess (324, 624, 724) in the inner wall of the central bore (321, 621 , 721), the opposite of the projection (323, 623, 73), for receiving the elastic member (33, 63, 74). 30
    [0008]
    8 - socket wrench according to claim 1, characterized in that the drive hole (311, 611, 711) of the ratchet wheel (31, 61, 71) defines twelve equidistant inner corners (612).
    [0009]
    9 - socket wrench according to claim 8, characterized in that the ratchet wheel (31, 61, 71) comprises another opening (614a), the two openings (614, 614a) being defined in two of the twelve inner corners (612) of the ratchet wheel (31, 61, 71). - socket wrench according to claim 9, characterized in that the positioning ring (32, 62, 72) has another projection (623a), the two projections (623, 623a) projecting from the wall of the hole 10 (311, 611, 711) through the opening (614, 614a) of the ratchet wheel (31, 61, 71). 11 - socket wrench according to claim 1, characterized in that the projection (73) is detachable from the inner wall of the central bore (721) of the positioning ring (72). 12 - socket wrench according to claim 11, characterized in that the positioning ring (72) has a receiving groove (723) in the inner wall of the central bore (721) of the positioning ring (72). ) to receive the projection (73).
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    引用文献:
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    法律状态:
    2015-05-19| PLFP| Fee payment|Year of fee payment: 2 |
    2016-07-27| PLFP| Fee payment|Year of fee payment: 3 |
    2017-06-12| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-27| PLFP| Fee payment|Year of fee payment: 5 |
    2020-04-10| ST| Notification of lapse|Effective date: 20200306 |
    优先权:
    申请号 | 申请日 | 专利标题
    TW102148721A|TWI490088B|2013-12-27|2013-12-27|
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